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Update and Few Thoughts, a (Well-Typed) transcript: Liza&Charles the marketeers, Voltaire kick-off, PrisM and Ebb-and-Flow to fuck ETH2.0 Gasper, the (back)log of a man and a falcon, lots of companies, September Goguen time, Basho, 2021 Titans, Basho, Hydra and much more thoughts and prayers

Hi everybody this is Charles Hoskinson broadcasting live from warm sunny Colorado. I'm trying a new streaming service and it allows me to annotate a few things and simulcast to both periscope and youtube. Let's see how this works. I also get to put a little caption. I think for the future, I'm just for a while going to put: "I will never give away ada". So, when people repost my videos for giveaway scams they at least have that. First off, a thank you, a community member named Daryl had decided to carve a log and give his artistic impression of my twitter profile picture of me and the falcon so that always means a lot when I get these gifts from fans and also I just wanted to, on the back of the Catalyst presentation, express my profound gratitude and excitement to the community.
You know it's really really cool to see how much progress has been made in such a short period of time. It was only yesterday when we were saying "when Shelley"? Now Shelley's out and it's evolving rapidly. Voltaire is now starting to evolve rapidly and we're real close to Goguen. At the end of this month we'll be able to talk around some of the realities of Goguen and some of the ideas we have and give some dates for certain things and give you a sense of where that project is at. The good news is that we have gained an enormous amount of progress and knowledge about what we need to do and how to get that done and basically people are just executing and it's a much smaller task than getting us to Shelley. With Byron to Shelley we literally had to build a completely new cryptocurrency from the ground up. We had to have new ledger rules, new update system, we had to invent a way of transitioning from one system to another system and there's hundreds of other little innovations along the way: new network stack and so forth. Byron cosmetically looks like Shelley but under the hood it's completely different and the Shelley design was built with a lot of the things that we needed for Goguen in mind. For example, we built Shelley with the idea of extended UTXO and we built Shelley understanding what the realities were for the smart contract model and that's one of the advantages you get when you do this type of bespoke engineering. There's two consequences to that, one, the integration is significantly easier, and two, the integration is significantly faster. We won't look at that same complexity there.
The product update at the end of the month... We'll really start discussing around some of these things as well as talk about partners and talk about how the development ecosystem is going to evolve. There are a lot of threads throughout all three organizations that are happening simultaneously. Emurgo, they're really thinking deeply about DeFi and they've invited us to collaborate with them on things like stablecoins for example but we're also looking at oracles (oracle pools), DEX and these other things and because there are already people in market who have made mistakes, learned lessons, it gives us the benefit of hindsight. It means we can be much faster to market and we can build much more competitive things in market and the Cardano community gets first access to these next generation DeFi applications without a lot of the problems of the prior generations and that's super beneficial to us.
You know, the other side of it, is that Voltaire is going to have a systemic influence not just on community funding but also the overall evolution and direction of the platform. The longer it exists the more pervasive it will become. Probably first applied towards the Cardano foundation roadmap but later on it will definitely have a lot of influence and say over every element aspect of the system including the launch dApps and these other things. Basically, long term, the types of problems that Cardano solves so that's incredibly appealing to me and very exciting to me because it's like I have this giant community brain with the best and brightest of all of you working with us to get us where we need to go.
You know, another thing that was super encouraging, it's a small thing, but it shows us that we're definitely in the right direction was that we recently got a demo from Pramod (Viswanath) and his team out of university of Illinois on a protocol they create called PrisM which is a super fast proof-of-work protocol and they wrote this beautiful paper and they wrote code along with it that showed that PrisM is a ten thousand times faster than Nakamoto consensus. If you take the bitcoin proof-of-work protocol, you strip it out, you put PrisM in, you can run the entire bitcoin system 10000 times faster. They have these beautiful benchmarks to show that. Even in bad network conditions. (I'm) promoting this team, they're, they're real researchers, and they're real engineers, they use a lot of cool HPC concepts like springboarding and other things like that to accommodate that. Then I asked him in the presentation, I said well, how much faster if you replay the Ethereum chain? He says, well, that it takes a big performance hit, could be only maybe a hundred times because that model is not as easy to optimize and shard with standard computer science concepts. In fact in some cases there are limitations there that really can't be overcome. It turns out that we're more on that UTXO side than we are on the account side. As a coincidence or intent of the design of extended UTXO we're gonna have a lot easier time getting much higher performance where and when it's necessary.
I also approved this week a scaling up of the Basho project. In particular, to build a hydra prototype team. The science has gotten to a point where we can make a really competitive push in that particular direction. What does that mean? It means that in just a few short months we can de-risk technological approaches that long-term will give us a lot of fruit where and when the community decides that they need infrastructure like hydra. Now, here's the beautiful thing about hydra. If you watch my whiteboard back in September of 2017 when Cardano first hit market with Byron I talked about this concept of looking at scalability with a very simple test which is as you get more people in the system it stays at the same performance or it gets faster. We all experience systems that do this, for example, bittorrent, more people downloading something you tend to be able to get it faster and we all experience the converse which is, the system gets slower when you get more people. What does this mean? It means that hydra is an actual approach towards true scalability in the system and it's a lot easier to do than sharding even though we have a beautiful approach to get the sharding on the ledger side if we truly desire to go down that way. There's beautiful ideas that we are definitely in deep discussions about. That's a very complex thing. There was recently a paper ("Ebb-and-Flow Protocols: A Resolution of the Availability-Finality Dilemma") out of Stanford that showed that the Gasper protocol as proposed for ETH2.0 does have some security concerns and it's going to be the burden on the shoulders of the Ethereum 2.0 developers and Vitalik to address those concerns from those Stanford professors. Whenever you have these very complex protocols they have so many different ways they can break and things can go wrong so it's much more appealing when you don't have to embrace complexity to achieve the same. The elegance of hydra is that stake pool operators are very natural parties to put hydra channels on and every time we add one we get much more performance out of that and the system as it gets more valuable. The k factor increases which means you get more stake pull operators, which means you get more hydra channels, so with growth we get appreciation, with appreciation we get more decentralization, with more decentralization we get more performance. In essence, this spiritually speaking, is really what we meant when we said scalability. That the system will always grow to meet its particular needs and we have a very elegant way of moving in that direction that doesn't require us to embrace very sophisticated techniques. It's not to say that these techniques don't have a place and purpose but it says that the urgency of implementing these is gone and we then have the luxury to pick the best science when it's ready instead of rushing it to market to resolve a crisis of high fees. We'll never have that crisis so there's a beauty to Cardano that is missing, I in my view, from many cryptocurrencies and blockchains in the marketplace and we're now seeing that beauty shine through. Not only through our community who are so passionate and amazing but in the science and the engineering itself and how easy it is for us to navigate the concepts. How easy it is for us to add more things, to take some things away, to clean some things up here and there and our ability to move through.
I never imagined when in 2015 I signed up to go in on this crazy ride and try to build a world financial operating system we would have made as much progress as we made today. We've written more than 75 research papers as an organization many of which are directly applicable to Cardano. We've got great partners who work with Nasa and Boeing and Pfizer, massive companies, that have 10 years of history and millions of users to come in and help us grow better. We've worked with incredible organizations, major universities like university of Wyoming, university of Edinburgh, Tokyo, tech professors all across the world. We've worked with incredible engineering firms like VacuumLabs and AtixLabs and Twig and Well-Typed, runtime verification, QuviQ and dozens of others along the years and despite the fact that at times there's been delays and friction throughout this entire journey we've mostly been aligned and we keep learning and growing. It gives me so much hope that our best days are ahead of us and an almost fanatical belief that success is inevitable in a certain respect. You see because we always find a way to be here tomorrow and we always find a way to make tomorrow a better day than today and as long as that's the trend you're monotonically increasing towards a better tomorrow, you're always going to have that outcome, you're always going to be in a position where Cardano shines bright. Towards the end of the month we'll have a lot more to say about the development side and that'll be a beginning just like Voltaire is the beginning and then suddenly you now notice the beautiful parallelism of the roadmap. Shelley continues to evolve, partial delegation is coming, in fact, I signed the contract with vacuumlabs to bring that to Ledger (and Trezor). The Daedalus team is hard at work to make that feature apparent for everyone as is the Yoroi team.
You see that, with now Voltaire, and soon was Goguen, and these are not endpoints, rather they're just beginnings and they're never over. We can always make staking better, more diverse, more merit-based and entertain different control models, have better delegation mechanics, have better user experience. The same for smart contracts, that's an endless river and along the way what we've discovered is it's easy for us to work with great minds and great people. For example with testing of smart contracts I would love to diversify that conversation above and beyond what we can come up with and bring in some firms who have done this for a long time to basically take that part with us shoulder to shoulder and build beautiful frameworks to assist us. For example, runtime verification is doing this with, the EVM with a beautiful project called Firefly to replace Truffle. I believe that we can achieve similar ends with Plutus smart contracts.
When you ask yourself what makes a system competitive in the cryptocurrency space? In my view there are four dimensions and you have to have a good story for all four of those dimensions. You need security and correctness. A lot of people don't prioritize that but when they get that wrong it hurts retail people, it hurts everyday people, billions of dollars have been lost due to the incompetence and ineptitude of junior developers making very bad mistakes and oftentimes those developers faced no consequences. The people who lost money were innocent people who believed in cryptocurrencies and wanted to be part of the movement but didn't protect themselves adequately. That's a really sad thing and it's unethical to continue pushing a model that that is the standard or the likely outcome rather than a rare edge case. You have to as a platform, a third generation platformn invest heavily in giving the developers proper tools to ensure security and correctness. We've seen a whole industry there's been great innovations out of Quantstamp and ConsenSys and dozens of other firms in the space including runtime verification who have really made major leaps in the last few years of trying to improve that story. What's unique to Cardano is that we based our foundations on languages that were designed right the first time and there's over 35 years of history for the approach that we're following in the Haskell side that allows us to build high assurance systems and our developers in the ecosystem to build high assurance systems. We didn't reinvent the wheel, we found the best wheel and we're giving it to you.
I think we're going to be dominant in that respect as we enter 2021. Second, you look at things like ease of maintenance, ease of deployment, the life cycle of the software upgrades to the software and as we've demonstrated with things like the hard fork combinator and the fact that Voltaire is not just a governance layer for ada and Cardano but will eventually be reusable for any dApp deployed on our system. You have very natural tooling that's going to allow people to upgrade their smart contracts, their dApps and enable governance for their users at an incredibly low cost and not have to reinvent the governance wheel each and every application. This is another unique property to our system and it can be reused for the dApps that you deploy on your system as I've mentioned before. Performance is a significant concern and this was often corrupted by marketers especially ICO marketers who really wanted to differentiate (and) say: "our protocol tested on a single server in someone's basement is 500000 transactions per second" and somehow that translates to real life performance and that's antithetical to anyone who's ever to study distributed systems and understands the reality of these systems and where they go and what they do and in terms of performance. I think we have the most logical approach. You know, we have 10 years of history with bitcoin, it's a massive system, we've learned a huge amount and there's a lot of papers written about, a lot of practical projects and bitcoin is about to step into the world of smart contracts. We congratulate them on getting Schnorr sigs in and the success of Taproot. That means entering 2021, 2022, we are going to start seeing legitimate dApps DeFi projects, real applications, instead of choosing Ethereum or Algorand, EOS, Cardano, choosing bitcoin and they're adding a lot to that conversation. I think that ultimately that model has a lot of promise which is why we built a better one. There are still significant limitations with what bitcoin can accomplish from settlement time to the verbosity of contracts that can be written.
The extended UTXO model was designed to be the fastest accounting and most charitable accounting model ever, on and off chain, and hydra was designed to allow you to flex between those two systems seamlessly. When you look at the foundations of where we're at and how we can extend this from domain specific languages, for domain experts, such as Marlowe to financial experts, and the DSLs that will come later, for others, like lawyers and supply chain experts in medical databases and so forth and how easy it is to write and deploy these. Plutus being beautiful glue code for both on and off chain communications. I think we have an incredibly competitive offering for performance and when hydra comes, simply put, there'll be no one faster. If we need to shard, we're going to do that and definitely better than anybody else because we know where our security model sits and there won't be surprise Stanford papers to blindside us that require immediate addressing.
In terms of operating costs, this is the last component, in my view, and that's basically how much does it cost you the developer to run your application? There are really two dimensions, one is predictability and the other is amount. It's not just good enough to say: it's a penny per transaction today. You need to know that after you spend millions of dollars and months or years of effort building something and deploying something that you're not going to wake up tomorrow and now it's five dollars to do what used to cost a penny. You need that cost to be as low as possible and as predictable as possible and again the way that we architectured our system and as we turn things on towards the end of this year and as we enter into the next year we believe we have a great approach to achieve low operating cost. One person asks why Cardano? Well because we have great security and correctness in the development experience and tools with 35 years of legacy that were built right the first time and don't put the burdens of mistakes on your customers. They ask why Cardano and we say: well the chain itself is going to give you great solutions with identity value transformation and governance itself and as a consequence when you talk about upgrading your applications having a relationship with your customers of your applications and you talk about the ease of maintenance of those applications. There's going to be a good story there and we have beautiful frameworks like Voltaire that allow that story to evolve and we keep adding partners and who have decades of experience to get us along. We won't stop until it's much better. They asked why Cardano? We said because at the moment we're 10 times faster today than Ethereum today and that's all we really need for this year and next year to be honest and in the future we can be as fast as we need to be because we're truly scalable. As the system gets more decentralized the system improves performance and where and when we need to shard we can do that. We'll have the luxury of time to do it right, the Cardano way, and when people ask why Cardano? Because the reality is, it's very cheap to do things on our platform and the way we're building things. That's going to continue being the case and we have the governance mechanisms to allow the community to readjust fees and parameters so that it can continue being affordable for users. Everything in the system will eventually be customizable and parameterizable: from block size, to transaction fees and the community will be in a good position to dynamically allocate these things where and when needed so that we can enjoy as an ecosystem predictability in our cost.
In the coming weeks and months, especially in my company, we're going to invest a lot of time and effort into comparison marketing and product marketing. When I see people say, oh well, you've launched proof of stake, a lot of other people have done. I don't think those people fully appreciate the magnitude of what we actually accomplished as an ecosystem and the quality of the protocols that are in distribution. That's not their fault, it's our fault, because we didn't take the time in simplistic terms, not scientific papers and deep code and formal specifications, but rather everyday language, to really show why we're different. I admit that that's a product failing and that needs to be corrected so we hired a great marketing director, named Liza (Horowitz?) and she is going to work full time with me and others in the ecosystem, a great team of people, every single day to get out there and explain what we have done is novel, unique, competitive and special to our industry. Everything from Ouroboros and contrast to major other protocols from the EOSes and Algorands and the Tezos of the world. Why we're different, trade-offs we chose over them, to our network stack, to the extended UTXO model, to Plutus, to Marlowe and we're going to keep hammering away at that until we get it right and everybody acknowledges and sees what has been accomplished.
I've spent five years of my life, good years of my life, and missed a lot to get this project where it needs to go. All of our employees have invested huge sums of their personal lives, their time, their brand, their careers, in trying to make this the really most magical and special cryptocurrency and blockchain infrastructure around. No one ever signed up in this company or the other companies working on Cardano to work on a mediocre protocol. That's just another blockchain, they signed up to change the world, they signed up to build a system that legitimately can look at you in the face and say: one day we have the potential to have a billion users! That's what they signed up for and they showed up to play. They built technology that evolves in that direction with some certainty and great foundations and we have an obligation to market in a way that can show the world why, succinctly, with clarity. Understandably, this has been a failing in the past but you know what? You can always be better tomorrow that monotonically increasing make it better and that's what we're going to do. We recognized it and we're going to invest in it and with Voltaire if we can't do it. You the community can do it and we'll work with you. If you can do a better job and the funding will be there to get that done. In addition to this, we think about 2021 and we ask where does the future take us? I've thought a lot about this you know I've thought a lot about how do we get the next five years as we close out 2020 and here's the reality: we're not going to leave as a company until we have smart contracts and multi-asset and Voltaire has evolved to a point where the community can comfortably make decisions about the future of the protocol and that the staking experience has solidified and it's stable.
I don't care if this costs me millions or tens of millions of dollars out of my own pocket to make happen. I'm going to do that because that's my commitment to you, the community and every product update will keep pushing our way there. We'll continue to get more transparent, we'll continue to get more aggressive and hire more and parallelize more. Aware when we can, to deliver that experience so that Cardano gets where it needs to go. Then when we ask about where do we go next? The reality is that the science as an industry, the engineering as an industry has given a menu of incredibly unique attractive and sexy things that we can pursue. What we're going to do is work with the community and the very same tools that are turning on today, the Voltaire tools, the cardano.ideascale.com tools and we're going to propose a consortium and we're going to bring the best and brightest together and give a vision of where we can take the system in another five years. With the benefit of hindsight, massively improved processes, better estimation capabilities and the fact that we're not starting with two people at IOG. We're starting with 250 people and the best scientific division in our industry and the legacy of almost, nearly by the end of this year, 100 scientific papers. That's us, you know what, there's dozens of companies throughout the history who have worked on Cardano. It's about time to scale them up too and get client diversity. So come next year when the protocol has evolved to the point where it's ready for it, we'll have that conversation with you the community and that's going to be a beautiful conversation. At the conclusion of it, there's going to be certainty of how we're going to evolve over the next five years to get ourselves beyond the cryptocurrency space. I'm very tired of these conversations we have about: are you going to go to (coindesk's) consensus or not? Or who's going to be the big winner? What about Libra or what about this particular regulation and this crypto unicorn and this thing?
You know I've been in the space a long time and I've noticed that people keep saying the same things year after year in the same venues. Yes, the crowd sizes get larger and the amount of value at risk gets larger but I haven't seen a lot of progress in the places where I feel it is absolutely necessary for this technology to be permanent in the developing world. We need to see economic identity. People often ask what is the mission for Cardano? For us IOG, you look at economic identity and you take a look at a roadmap. For it, you scale up and down, and each and every step along the way, from open data, to self-sovereign identity, to financial inclusion. You can keep going down: to decentralized lending, decentralized insurance, decentralized banking. Each and every step along the way to economic identity. When you admit a blockchain tells you that, there's a collection of applications and infrastructure that you need to build.
My life's work is to get to a point where we have the technology to do that. The infrastructure to do that, with principles, and so we'll keep evolving Cardano and we'll keep evolving the space as a whole and the science as a whole until I can wake up and say: each box and that road to economic identity, for all people not just one group, we have a solution for that. I'm going to put those applications on Cardano and success for me is not about us being king of the crypto hill and having a higher market cap than bitcoin or being entrepreneur of the year coindesk's most influential person. It's meaningless noise, success for me is reflecting back at the things that we have accomplished together and recognizing that millions if not billions now live in a system where they all matter, they all have a voice, they all have an equal footing. The Jeff Bezos of the world have the very same experience as the person born in Rwanda and we're not done until that's the case. It's a long road, it's a hard road, but you know what? We're making progress, we have great people in Africa, we have great people in eastern Europe, we have great people in southeast Asia and great partners all along the way. Great people, Latin America, great people in south America, great people here in the United States.
When we talk about economic identity there are millions, if not tens of millions of Americans who don't have it. Same for Canadians, hundreds of thousands, who don't have it. Developed western cultures, it's the greatest blind spot of policy and as we enter into a depression as a result of coronavirus, add millions if not tens of millions more onto that list. Generations are being disenfranchised by this legacy system and we as an ecosystem, we as an entire community are offering a different way forward. Not hyper centralizationn not social credit but a way forward where you own your own money, your own identity, your own data. You're not a victim of surveillance capitalism, you're not a victim of civil asset forfeiture. When you say the wrong things, you get shut out of society. Each and every human being matters and I'm optimistic to believe that when you remind people that they matter they're gonna rise to the occasion. That is the point of my company. In the things that we do each and every day, that's our mission to give the platforms to the world so that those who don't have economic identity can get it and they can keep it and no one can take it from them and they can enjoy an ever increasing growth of standard of living wealth and prosperity.
However you want to measure that this is my goal post, I couldn't care less about the cryptocurrency space. It was a great place to start but the space needs to be reminded why it exists. Bitcoin was given a mandate on the back of the 2008 financial crisis to do something different. It was not given a mandate to go be a new settlement layer for central banks or a new way for the old guard to make more money and banks get bigger and for those who are in control to preserve their power. The whole point of doing something so crazy as to buy a coin that doesn't even exist in real life, that's just a bunch of numbers in the cloud, the whole point of that was so that we as a society could do something different than the way that we'd been doing things before. So, each and every member of the cryptocurrency space needs to remind everyone else from time to time why we're here and where did we come from and where are we going to go.
The beauty of Cardano is we have already achieved for the most part a decentralized brain and that momentum is pushing harder than ever. More and more scientists are waking up, more and more institutions are waking up, getting us there. The code we have, the right approach and I think we have a great competitive offering for 2021 as we go and battle the titans and that's going to be a lot of fun but we know who we are and where we're going and we're in the right places. It's so incredibly encouraging to see the stake pool operators not just be from California or Texas or New York or Canada. To see a lot of stake pool operators from the place that need the most, help everybody does matter and it means a lot to me for the people who are there but it means a lot to everybody to say that we have created an equal platform. It makes the participation of all of us so much more meaningful. We're not just talking to each other, we're talking to the world and by working together on this platform we're lifting the world up and giving people hope. That's the point, there's a lot more to do, we didn't get everything done. You never do you aspire, you work hard, you set a moon, shot and sometimes you can just get to orbit with the first go but you know what? When you build the next rocket you can go to Mars.
Thank you all for being with me, thank you all for being part of this. Today was a damn good day with the announcement of Voltaire. Go to cardano.ideascale.com. You can participate in that, so end of September is going to be a good day too. There's a lot of good days to come, in between a lot of hard days, doing tasks sometimes entirely forgettable but always necessary to keep the revolution going and the movement going. I cannot wait for 2021, our best days are ahead of us, because of you. You all take care now .
Source: https://www.youtube.com/watch?v=BFa9zL_Dl_w
Other things mentioned:
https://cardano.ideascale.com/
https://www.atixlabs.com/blockchain
https://www.well-typed.com/
https://www.vacuumlabs.com/
https://medium.com/interdax/what-is-taproot-and-how-will-it-benefit-bitcoin-5c8944eed8da
https://medium.com/interdax/how-will-schnorr-signatures-benefit-bitcoin-b4482cf85d40
https://quantstamp.com/
https://bloxian.com/bloxian-platforms/ (TWIG)
https://runtimeverification.com/firefly/
https://www.trufflesuite.com/
https://experts.illinois.edu/en/publications/prism-deconstructing-the-blockchain-to-approach-physical-limits (PrisM and not our Prism https://atalaprism.io/)
Ebb-and-Flow Protocols: A Resolution of the Availability-Finality Dilemma (aka Gasper and ETH2.0 fucker) https://arxiv.org/abs/2009.04987
http://www.quviq.com/products/
https://en.wikipedia.org/wiki/Schnorr_signature
submitted by stake_pool to cardano [link] [comments]

An In-Depth Guide to: How do I Fix my Ledger Nano’s Stuck Ethereum Transaction?!?!?! (It’s Been Stuck for Weeks and NOTHING Traditional has Worked!!!!) As Well as: How Do I Choose My Nonce??? I’ve Tried MetaMask, MEW/MyEtherWallet, and Others, but Nothing is Working Correctly!!! I’m Dying by Stress!

So, if you were like me 1-2 months ago, you’ve probably already gone through 2,or 3, ...or 40 articles and guides that probably say something like:
“YeP, eVeRy EtHeReUm UsEr WiLl EvEnTuAlLy HaVe ThE LoW-gAs ExPeRiEnCe, YoU’rE nOt AlOnE! DoN’t FrEaK OuT tHoUgH; ThErE iS a WaY tO fIx It!”
Chances are, every time you read another useless article, you want to kill the nearest inanimate object, even though it was never alive in the first place. Nonetheless, you’re gonna kill it as much as it can be killed, holding nothing back; or, you’re just plotting to and slowly getting closer to executing the plan (and the object) every time you are insulted once again.
However, if you have the ability to download software (MyCryptoWallet) on a PC, it should be safe to relax now. I think you’ve finally found some good news, because I am 99.99...% sure this will work for the issue that so many people are having at this time, around the end of the month of May, year 2020.
More and more people are likely to be having this issue soon, since Ethereum's gas prices have been insanely high lately as well as having 300% price changes in a matter of minutes; Etherscan’s Gas tracker is nearly uselessly-inaccurate at this time. I've heard that there's a congestion attack; that was said a week ago, and it appears to be ongoing... (I can't think of any other suspect besides Justin Sun to blame it on... it must be incredibly expensive to overload the blockchain for this long... I may be wrong though...)
 
Let’s begin
For myself, I was trying to send an ERC20 token when this dreadful issue attacked. Specifically, the token was either BSOV or GRT; I sent them 1 after the other and the first succeeded, and the second one took over a week.
(They’re both great tokens in my opinion and deserve much more attention than they’ve been getting. BSOV is nearing its 1 year anniversary as I write this, and GRT is still in its 90 day community-development progress test, so of course I'm gonna take this opportunity to "shill" them; they are great tokens with great communities).
I was able to finally fix it, after a week of mental agony (also the txn finally processed 1-2 hours before I found the solution, robbing me of the gratitude of fixing it myself... (╯‵□′)╯︵┻━┻ ...but now I guess I can hopefully save some of you the headaches that I endured... ) I’m providing the ability to do the same, in a step by step guide.
Why did I go through all of this trouble? I'd fault the fact that I have ADHD and autism, which in my case can multiply each other’s intensity and cause me to “hyper-focus” on things, much much more than most with the same qualities, intentionally or not. Adderall is supposed to give me a bit of control over it, but except for in a very-generalized way, it’s still 90% up to chance and my default-capabilities to allow me control over my attention with self-willpower. But also Karma and Moons pls... ʘ‿ʘ
 
  1. In MyCrypto, (I'm using the Windows 10 app, version 1.7.10) you will open to a screen that says "How would you like to access your wallet?". Choose Ledger, of course. (Unless your here for some non-ledger issue? Idk why you would be but ok.)
  2. On the next screen (having your nano already plugged in, unlocked, and opened into the Ethereum app) click "Connect to Ledger Wallet"
  3. A screen overlay should appear, titled: "Select an Address". Here is where it may get confusing for some users. Refer to "AAA" below to know how to find your account. (Geez, sorry lol that was a huge amount of info for a reddit reply; I might've over-elaborated a little bit too much. but hey it's valuable information nonetheless!)
  4. After escaping the "AAA" section, you'll have accessed your account with MyCrypto. Awesome! To find your ERC20 tokens, (slight evil-laughter is heard from an unidentifiable origin somewhere in the back of your mind) go to "AAB".
  5. (You may have decided to find the token(s) on your own, rather than daring to submit to my help again; if so, you may pity those who chose the other path... ~~( ̄▽ ̄)~~) Now, once you've added your token, you should revert your attention to the account's transfer fill-out form!
  6. I'll combine the steps you probably understood on your own, already. Put in the address that your stuck transaction is still trying to send currency to. If an ERC20 token is involved, use the drop-down menu to change "ETH" to the token in trouble. Input your amount into the box labeled... wait for it... "Amount". Click on "+Advanced".
  7. Refer to Etherscan.com for the data you will need. Find the page for your "transaction(txn) hash/address" from the transaction history on the wallet/Ethereum-manager you used to send from. If that is unavailable, put your public address that your txn was sent from into the search tool and go to its info page; you should be able to find the pending txn there. Look to open the "more details" option to find the transaction's "Nonce" number.
  8. Put the nonce in the "Nonce" box on MyCrypto; you will contest the pending txn with a new txn that offers larger gas fees, by using the same nonce. If (but most likely "When") the new transaction is processed first, for being more miner-beneficial, the nonce will then be completed, and the old transaction will be dropped because it requests an invalid, now-outdated nonce. Your account will soon be usable!
  9. Go to the Gas Tracker, and it may or may not provide an informative reading. Choose whatever amount you think is best, but choose wisely; if you're too stingy it may get stuck again, and you'd need to pay another txn's gas to attempt another txn-fix.
  10. At the time I write this, I'd recommend 50-100 gwei; to repeat myself, gas requirements are insane right now. To be safe, make the gas limit a little higher than MCW's automatic calculation, you may need to undo the check-mark for "Automatically Calculate Gas Limit".
  11. Press "Send Transaction"!!!
  12. You will need to validate the action through your nano. It will have you validate three different things if you are moving an ERC20 Token. It's a good idea to verify accuracy, as always.
 
Well, I hope this worked for you! If not, you can let me know in a reply and I'll try to figure it out with you. I like making these in-depth educational posts, so if you appreciate it please let me know; I'll probably make more posts like this in the future!
( Surely this is at least far better than Ledger's "Support" article where they basically just tell you "Yeah, we haven't bothered to make a way to manually select nonces. I guess we might try to make that available for Bitcoin accounts at some point in the future; who knows? lol"... that's not infuriating at all, right?)
 
AAA:
Before I tell you how to find your address, I will first make it clear, within the italicized text, exactly which address you are looking for, if you are not already sure:
You may also skip the text written in italics if your issue does not include an ERC20 token, if you wish.
Ledger Live can confuse some users with its interface. On LL, to manage an ERC20 token, you first must go to your Ethereum account and add the token. When you then click on the added token under "Tokens" below the graph chart for your account's ETH amount over time, the screen will then open a new screen, that looks just the same, except focused on the specific ERC20 token. To confuse users further, there is then an option to "Star account", which then add the ETH icon with the ERC20 token's first letter or symbol overlapping, onto the easy access sidebar, as if it was another account of similar independency to the ETH account it was added to.
This improperly displays the two "accounts" relation to each other.
Your ERC20 holdings (at least for any and all ERC20 that I know of) are "held" in the exact-same address as the Ethereum address it was added to, which also "holds" any Ether you've added to it. You send both Ether (ETH) and any ERC20 Tokens to and from only Ethereum addresses of equivalent capabilities, in both qualities and quantities. In all basic terms and uses, they are the same.
So, to know what the problematic account's address is, find the address of the Ethereum account it was added to in Ledger Live.
Now, to find your address on MyCrypto, the most reliable way to find it, that I am aware of, is this:
Open Ledger Live. Go to the screen of your Ethereum address (again, this is the one that you added your ERC20 token, if applicable. If you're not dealing with an ERC20 token, you may ignore everything I've put in Italics). Click on "Edit account"; this is the icon next to the star that may look like a hex-wrench tool. On the new screen-overlay, you will see "> ADVANCED LOGS". Click on the ">" and it will point down while revealing a drop-down with some data that you may or may not recognize/understand. Likely to be found indented and in the middle-ish area, you will see this line, or something hopefully similar:
"freshAddressPath": "44'/60'/X'/0/0",
The "X" will probably be the only thing that changes, and the actual data will have a number in its place; it will not be a letter. Let's now put that line to use in MyCrypto:
Take the 44'/60'/X'/0/0 , and make sure you DO NOT copy the quotation marks, or that comma at the end either.
You can do this before or after copying and/or pasting, but drop the second "/0" at the end; it was not necessary in my case, I expect that you won't need it either, and will probably just make MyCrypto see it as an invalid input.
Okay, now go back to the "Select an Address" screen-overlay in MyCrypto.
Next to "Addresses", click on the box on the right, and you should be shown a list of options to select from in a drop-down menu.
Scroll all the way down, and you should find the "Custom" option at the very bottom. Select it.
A new box will appear; probably directly to the right of the now-shortened box that now displays the "Custom" option that you just selected. This box will offer an interface for typed input. ...yep... once again, believe it or not, you should click it.
Type " m/ ", no spaces before or after.
Type in or paste the data we retrieved from ledger live.
The box should now hold this:
m/44'/60'/X'/0
Again, X should be a number. In fact, that number is probably equal to the number of Ethereum (not including any ERC20 wannabe) accounts that you've made on Ledger Live before making the one we're working on right now! (1st Eth. Acc. would have: X = 0, 2nd: X = 1, 3rd: X = 2, ...)
Make sure you've included every apostrophe ( ' ), and solidus ( / ); there is NO APOSTROPHE for the "m" at the start and the "/0" at the end!
If you press the enter key or click on the check-mark to the right of where you typed, the appropriate addresses will be generated, and the address you created through Ledger Live should be the first one on the list!
Select your address and press "Unlock", and you are now accessing your account through the MyCrypto app's interface!
 
AAB:
In order to access your ERC20 token, you will need to add them first.
You may have to scroll down, but on the right-side of your unlocked account screen, you'll see a box with "Token Balances" as its header.
Click "Scan for tokens". This may take a short bit of time, and when it's done it may or may not display your ERC20 token. If it worked, you can head on back to the main part.
If you got the result I did, it won't display your token, or, if our result was exactly the same, it won't display any at all. However, you should now have the "Add Custom Token" option available, so see where that takes you.
You should discover four boxes, specified in order (Address/ Decimals / Token_Symbol / Balance). You may only need to fill in the "Address" box, but if you need to fill others, you'll find those with the token's address; here's 2 ways to find it, if you don't already know.
Method I:
Since you've probably already been managing your token with Ledger Live, you can go to the LL screen of your "account" for that token; Right next to the account's icon, and directly above the name, you'll see:
Contract: 0x??????...????????
Yes, go on; click it. You'll find the token's page on Etherscan; this was just a shortcut to the same place that both of the two previously referenced methods lead to. Skip to method... III?
Method II:
Go to Etherscan.com, or a similar Ethereum-blockchain-monitoring website, if you have a different preference. Search for the name of your token, and you should be able to see it as a search result. Activate your search manually of by selecting search option. Continue on with Method III.
Method III (Iⅈ what makes you think there was a third method? I said 2!):
At this point, you should find the "contract address" somewhere on the screen. This is the identity of the creature that breathes life into the token, allowing it to exist within the world of Ethereum. Steal it, and tell MyCrypto that you've left some of "your" tokens in the address of your ledger's Ethereum account. MyCrypto will trust and believe you without any concern or doubt, just by putting "your" contract address in the box for "Address"; it's almost too easy!
Well whaddya know, this one isn't actually too long! Don't tell anyone who may have taken a little longer whilst finding out how to do it themselves, though. There's value in trying to do something on your own, at least at first, so I'll let them think they made the right choice (¬‿¬). But take this star for humbling yourself enough to seek further help when you need it, since that is a very important life skill as well!
(o゜▽゜)o☆
Now, back to the useful stuff at the top...
 
EDIT: A comment below made me realize that this info should be added too. Here is my reply to the comment saying I could just use MetaMask. I said in the title that this guide is for questions where MEW and MetaMask aren’t working, but I guess it’s easy to miss. I used my u/caddark account to respond:
(Using this account because u/caddarkcrypto doesn’t meet the karma/age standards to comment; the post had to be manually approved.)
I guess I didn’t make it entirely clear; sorry:
The target audience for this guide is anyone with a stuck Ethereum transaction that was initiated through Ledger Live AND are experiencing the same difficulties I had encountered while trying to fix this issue for myself.
This wasn’t any regular stuck Ethereum transaction. Apparently before, there was an issue that made a Ledger Nano nearly impossible to connect to MetaMask (which is also Brave Browser’s integrated “crypto wallet” for the desktop version) and/or MEW (also perhaps any other browser wallets made for chrome and/or brave) that I heard was supposed to be fixed in a recent update. It might’ve been mostly patched, idk, but during my experience, (in which I was using the latest version of Ledger Live that is available right now,) that issue still remained.
The really weird part was that it successfully connected to the browser wallets again after I fixed the stuck transaction. At first I thought that somehow the txn was what was bugging the connection. However, later, during no txn issues, I was again unable to connect.
Seeing the same connection error again later, I opened up the MCW app I downloaded the day before, and was going to just use that. While in the process of operating MCW, I suddenly had another idea to try for the browser wallet so I went back to that just to quickly test it.
The browser wallet worked perfectly...
I don’t know how, but I think that somehow, something in MCW’s software, makes the browser wallets work. They don’t work for me without having MCW opened in the background first.
EDIT 2: Markdown decided to stop working after I did the first edit... I might fix it tomorrow... how did that happen though??? What did I do?
EDIT 3: nvm, I'm just fixing it now; I won't get much sleep tonight I guess.
submitted by CaddarkCrypto to CryptoCurrency [link] [comments]

A breakdown of the aelf blockchain whitepaper — Part 2

A breakdown of the aelf blockchain whitepaper — Part 2

https://preview.redd.it/p9cf7c4cpri51.png?width=512&format=png&auto=webp&s=006d466a2d0ad4d4afbbffe340eb2ad44631ad27

Breaking down the aelf side-chain

Cloud computing, parallel processing, and AEDPoS have greatly improved the execution performance of any kind of smart contract, but when they are applied to enterprise-level scenarios, new problems crop up. To begin with, in software design, it is a rather bad idea to program all the methods in the same class. We always write a series of classes to inherit a base class, in order to decouple the functionalities and make the class extensible whenever needed. The same also applies to blockchain design. Second, since all the data and transactions are accessible to anyone through a blockchain explorer, if we put the smart contract and data of different enterprises or government sectors on a single blockchain, then everyone can see them, which means there will be no data privacy. Although there are encryption techniques which can mask data, such as zero knowledge proof, it is always better to put the data of different enterprises on different blockchains.
Based on these considerations, long before other projects even realized it, aelf proposed that side-chain technology should be applied to this scenario. Unfortunately, for someone who is new to blockchain, it is almost impossible to understand how side-chain works. Side-chain is not what it literally means, it is not subordinate to the main chain. On the contrary, a side chain is a blockchain distributed system with the same functions and nodes as a main chain (say, the aelf blockchain). As mentioned above, we can put the data of different enterprises on different blockchains. This means we can build many blockchains, and work magic (of course not magic in its literal sense) to make these chains connect to the aelf main chain (in fact, we can call any of these blockchains a main chain and the rest side chains). Currently, the most popular method of connecting any two blockchains, which we also call cross-chain, is using a middle-man. When we want to use bitcoin to play a decentralized game on Ethereum, we need to send a transaction with some amount of bitcoin to a locking bitcoin address, then the middle-man will exchange the locked BTC for ETH at a certain exchange rate and allocate to you the equivalent amount of ETH on Ethereum, which you can use for playing games.
But in aelf, we use a metadata indexing method, which is more straightforward. Unlike other projects who built on the blockchains of those already successful projects (such as Ethereum or the HyperLedger fabric framework for consortium blockchains), the aelf team has writen all the code and build the infrastructure from scratch. From the beginning, the aelf team has defined how the data structure of a blockchain, a block, a transaction etc. should look like in C#. In an aelf blockchain data structure, there is an attribute called blockchain ID, which is a unique hash; and in block data structure, there are several attributes called blockchain ID , Merkle tree root and related side chain block list. There is also one more important thing: all of aelf’s data structures are serialized and stored in Redis (a popular key-value pair database system), so is the side chain information. As a result, as the aelf main chain is growing with block production by BPs, other side chains can send transactions to cross-chain contracts, which then execute the related code to connect to the main chain’s network port and request the main chain to index the side chain block and pay the indexing fee.
The core issue here is how to index a side chain: when a main chain (the block data structure on the main chain, or the data records with main chain ID in Redis), receives a request from a side chain, it adds the side chain’s block head data structure to the related side chain block list, which means theoretically we have indexed or related a side chain. We have mentioned that there is also a blockchain ID in each block, this attribute allows a main chain to index blocks from different side chains. When a user on a main chain wants to access data on a side chain or vise versa, they just need to find the target block on the main chain and its related side chain block list, and then find the target block on the side chain via key indexing.
As we will explain later, blockchains for different application scenarios generate blocks at different speeds. Under such circumstances, a chain with slower speed might index many blocks from a chain that produces blocks faster. This method can be applied to scenarios such as forking.
In practice, we can build any number of blockchains, and relate it via indexing to the aelf main chain, with a specific category of smart contracts running on each of them. For example, we can allow only banking-related smart contracts deployed on a specific blockchain, and e-commerce smart contracts on another. Our whitepaper summarizes it best:
One chain, one contract.
Moreover, the indexing method can make many blockchains into a hierarchical tree structure, the root being the so-called main chain. That’s because a related blockchain can then again index another blockchain as its side chain, and the process can keep going on. Logically, this is in perfect accordance with hierarchical taxonomy, for example, the financial sector has many subcategories, such as banking, lending, investment and insurance, and under investment banking, there are venture capital, investment bank etc… Each subcategory is supported by an indexed blockchain.
So how do these blockchains collaborate in a distributed system? First we need to be know that any node in a distributed system is just a software instance running on your computer, or a process. In TCP/IP, a node is allocated a port number, so we can run any number of this type of instances on a computer. However, each instance has its own port number: we can run several blockchain nodes, one IPFS node, one bit-torrent node and etc. simultaneously. In aelf, you should first start a main chain instance, and then you can build and run a side chain instance. Transactions broadcast on the side chain are collected by the BP nodes (block production nodes) on the main chain. When smart contracts deployed on the side chain is triggered, the BP and full nodes on the main chain will run them.

Aelf — a blockchain based operating system

To perfect the design of our software system, aelf made the system extensible, flexible and pluggable. Just as there are thousands of Linux OS with only one Linux kernel. As Ethereum Founder Vitalik Buterin has explained, Ethereum can be seen as a world computer because there are lots of smart contracts running on it, and the contract execution results are consistent in all the distributed systems around the world. This idea is also embedded in aelf’s system and we call it a “blockchain infrastructure operating system”, or a distributed operating system.
Just like any OS, aelf has a kernel and a shell. In fact, aelf’s kernel is not something like a Linux kernel, it is just an analogy. There is a special concept in aelf’s kernel called the minimum viable blockchain system, which defines the most fundamental aspect of a blockchain. If a developer wants to create a new blockchain system or a new blockchain project, he does’t have to start from scratch, instead, he can directly extend and customize using the aelf blockchain open-source code. The technologies described above are all included in the minimum viable blockchain system. With these, anyone can customize:
  • Block property: block data structure, block packaging speed, transaction data structure, etc.
  • Consensus type: AEDPoS is used by default, but you can also use incentive consensus, like PoW and PoS. And you can also use the consensus of traditional distributed systems, like PoS and Practical Byzantine Fault Tolerance, or PBFT. In fact, the f evil nodes of 3f+1 nodes are the upper limit for any distributed system to reach a consensus, which is called the Byzantine Fault Tolerance, or BFT. In order to do this, there is a specific algorithm, but in 1999, a much more efficient algorithm to reach this consensus came along, that is the PBFT. In scenarios like private blockchain or consortium blockchain where there is no need for a incentive model, PBFT will be a good option.
  • Smart contract collection: In aelf, there are many predefined smart contracts that can be used directly by other contracts, such as token contract, cross-chain contract (also called CCTP, or cross chain transfer protocol), consensus contract, organization voting contracts, etc. Of course, you can also create your own contract with a brand new implementation logic.
  • Others.

Summary

So this is our breakdown of the aelf blockchain whitepaper. In previous articles, we first introduced two basic concepts which are often misinterpreted by other articles. After helping you get these two concepts straight, we then introduced aelf’s vast arsenal of powerful technology. If these articles helped you understand the aelf blockchain better, then I have reached my goal. But I must advise you to read the whitepaper for a more detailed explanation. With all this knowledge at your disposal, I believe you will be much more comfortable developing DApps on aelf.
Check Part 1 here: https://medium.com/aelfblockchain/a-breakdown-of-the-aelf-blockchain-whitepaper-part-1-a63fc2e3e2e7
submitted by Floris-Jan to aelfofficial [link] [comments]

The Retrospect and Prospect of the Crypto Economy——The Development and Evolution of the Consensus Mechanism (Three)

The Retrospect and Prospect of the Crypto Economy——The Development and Evolution of the Consensus Mechanism (Three)

https://preview.redd.it/45wwtygv2rc51.png?width=567&format=png&auto=webp&s=a5f51ea3c620d478231c39e32f198eb64d801897
Foreword
The consensus mechanism is one of the important elements of the blockchain and the core rule of the normal operation of the distributed ledger. It is mainly used to solve the trust problem between people and determine who is responsible for generating new blocks and maintaining the effective unification of the system in the blockchain system. Thus, it has become an everlasting research hot topic in blockchain.
This article starts with the concept and role of the consensus mechanism. First, it enables the reader to have a preliminary understanding of the consensus mechanism as a whole; then starting with the two armies and the Byzantine general problem, the evolution of the consensus mechanism is introduced in the order of the time when the consensus mechanism is proposed; Then, it briefly introduces the current mainstream consensus mechanism from three aspects of concept, working principle and representative project, and compares the advantages and disadvantages of the mainstream consensus mechanism; finally, it gives suggestions on how to choose a consensus mechanism for blockchain projects and pointed out the possibility of the future development of the consensus mechanism.
Contents
First, concept and function of the consensus mechanism
1.1 Concept: The core rules for the normal operation of distributed ledgers
1.2 Role: Solve the trust problem and decide the generation and maintenance of new blocks
1.2.1 Used to solve the trust problem between people
1.2.2 Used to decide who is responsible for generating new blocks and maintaining effective unity in the blockchain system
1.3 Mainstream model of consensus algorithm
Second, the origin of the consensus mechanism
2.1 The two armies and the Byzantine generals
2.1.1 The two armies problem
2.1.2 The Byzantine generals problem
2.2 Development history of consensus mechanism
2.2.1 Classification of consensus mechanism
2.2.2 Development frontier of consensus mechanism
Third, Common Consensus System
Fourth, Selection of consensus mechanism and summary of current situation
4.1 How to choose a consensus mechanism that suits you
4.1.1 Determine whether the final result is important
4.1.2 Determine how fast the application process needs to be
4.1.2 Determining the degree to which the application requires for decentralization
4.1.3 Determine whether the system can be terminated
4.1.4 Select a suitable consensus algorithm after weighing the advantages and disadvantages
4.2 Future development of consensus mechanism
Last lecture review: Chapter 1 Concept and Function of Consensus Mechanism plus Chapter 2 Origin of Consensus Mechanism
Last lecture review: Chapter 3 Common Consensus Mechanisms

Chapter 3 Common Consensus Mechanisms (Part 2)
Figure 6 Summary of relatively mainstream consensus mechanisms

https://preview.redd.it/2yepvjjy2rc51.png?width=567&format=png&auto=webp&s=acaed31fa6106ac2f501fe2cb284f66bb2258a0e
Source: Hasib Anwar, "Consensus Algorithms: The Root Of The Blockchain Technology"
The picture above shows 14 relatively mainstream consensus mechanisms summarized by a geek Hasib Anwar, including PoW (Proof of Work), PoS (Proof of Stake), DPoS (Delegated Proof of Stake), LPoS (Lease Proof of Stake), PoET ( Proof of Elapsed Time), PBFT (Practical Byzantine Fault Tolerance), SBFT (Simple Byzantine Fault Tolerance), DBFT (Delegated Byzantine Fault Tolerance), DAG (Directed Acyclic Graph), Proof-of-Activity (Proof of Activity), Proof-of- Importance (Proof of Importance), Proof-of-Capacity (Proof of Capacity), Proof-of-Burn ( Proof of Burn), Proof-of-Weight (Proof of Weight).
Next, we will mainly introduce and analyze the top ten consensus mechanisms of the current blockchain.
》DBFT
-Concept:
Delegated Byzantine fault tolerance. The improved Byzantine fault-tolerant algorithm makes it suitable for blockchain systems. The system consists of nodes, delegators (who can approve blocks), and speakers (who proposes the next block). It is a consensus algorithm that guarantees fault tolerance implemented inside the NEO blockchain.
-Principle:
In this mechanism, there are two participants: the professional bookkeeper "bookkeeping node" and the ordinary users in the system.
Ordinary users vote based on the proportion of holding stake to determine the bookkeeping node. When a consensus is required, a spokesperson is randomly selected from these bookkeeping nodes to draw up a plan, and then other bookkeeping nodes will vote basing on the Byzantine fault tolerance algorithm.That is, majority principle. If more than 66% of the nodes agree to the spokesperson’ plan, a consensus is reached; otherwise, the spokesperson is re-elected and the voting process is repeated.
-Representative application: Neo, etc.
》PoA
-Concept:
Proof of authority. That is, certified by some accredited accounts, these accredited accounts are called "validators". The software that the verifier runs that supports the verifier to place transactions in blocks.
-Principle:
Three conditions:
  1. The identity must be formally verified on the chain, and the information can be cross-verified in a publicly available domain;
  2. The qualifications must be difficult to obtain, so that the rights of the verification block obtained are precious enough;
  3. The authoritative inspection and procedures must be completely unified.
With PoA, every individual has the right to become a verifier, so there is an incentive to maintain the position of the verifier once acquired. By attaching a reputation to the identity, the verifier can be encouraged to maintain the transaction process. Because the verifier does not want to gain a negative reputation, it will lose its hard-won verifier status.
-Representative applications: VeChain, etc.
》DAG
-Concept:
Directed acyclic graph. Each newly added unit in the DAG is not only added to the long chain block, but added to all the previous blocks, verifying each new unit and confirming its parent unit and the parent unit of the parent unit, and gradually confirming until the genesis unit. As the hash of its parent unit is included in its own unit, the blockchains of all transactions are connected to each other to form a graph-like structure with time.
-Principle:
In the DAG network, each node can be a trader and a validator, because the transaction processing in DAG is done by the transaction node itself. Taking IOTA as an example, IOTA’s Tangle led
ger does not need to pay transaction fees while ensuring high-speed transaction processing. However, it does not mean that the transaction is free, because in this ledger, the initiation of each transaction needs to verify the other two random transactions first, and connect the transaction initiated by itself to these two transactions, so the responsibility that miners on the blockchain bear is distributed to all traders. The DAG method of processing transactions can be called asynchronous processing mode.
Figure 10 The difference between the traditional blockchain structure and the DAG structure

https://preview.redd.it/1xfssxj03rc51.png?width=553&format=png&auto=webp&s=95c382f81943c9a188a89ac6b2dadf64446589e6
-Representative applications: IOTA, etc.
》PoET
-Concept:
Proof of elapsed time. That is, it is usually used in a permissioned blockchain network. It can determine the mining rights of the block holders in the network. The permissioned blockchain network requires any prospective participants to verify their identity before joining. According to the principles of the fair lottery system, each node is equally likely to become the winner.
-Principle:
Each participating node in the network must wait for a randomly selected period, and the first node to complete the set waiting time will get a new block. Each node in the blockchain network will generate a random waiting time and sleep for a set time. The node that wakes up first, that is, the node with the shortest waiting time, wakes up and submits a new block to the blockchain, and then broadcasts the necessary information to the entire peer-to-peer network. The same process will be repeated to find the next block.
Two factors:
  1. Participating nodes will naturally select a random time in nature, rather than deliberately;
  2. The winner did complete the waiting time.
-Representative application: HyperLedger Sawtooth, etc.
》PoSV
-Concept:
Proof of stake velocity. Proposed by Reddcoin, drawing on the concept of "money circulation speed" in economics, it mainly allocates bookkeeping rights based on the coin age of nodes participating in the competition.
-Principle:
PoSV also allocates accounting rights according to the coin age of the nodes participating in the competition, but modifies the coin age calculation formula to a function of exponential decay of growth rate. Taking Reddcoin as an example, Reddcoin sets the half-life of the coin age growth rate to 1 month. Assuming that the unit token can accumulate 1CoinDay coin age on the first day, only 0.5CoinDay coin age can be accumulated on the 31st day, and only 0.25CoinDay coin age can be accumulated on the 61st day, and so on. In this way, the nodes are encouraged to use the token to conduct a transaction after holding the token for a period of time, thereby restarting the calculation of the coin age and increasing the circulation speed of the token in the network.
-Representative applications: Reddcoin, etc.
Table 2 Comparison of the advantages and disadvantages of current mainstream consensus mechanisms

https://preview.redd.it/kb04i7eh3rc51.png?width=1236&format=png&auto=webp&s=42de13bc99afaf258c0a740a6618e2d579b59100
Source: network resources
Chapter 4 Summary of the Selection and Status Quo of Consensus Mechanism
4.1 How to choose a consensus mechanism that suits you
Step 1: Determine whether the final result is important
For some applications, the end result is very important. If you are building a new payment system that can support very small amounts, it is acceptable for the transaction result to change. Similarly, if you are creating a new distributed social network, 100% guarantee that the status is updated immediately is not particularly necessary. On the contrary, if you are creating a new distributed protocol, the final result is critical to the user experience. For example, Bitcoin has a final confirmation time of about 1 hour, Ethereum has a final confirmation time of about 6 minutes, and Tendermint Core only has a final confirmation time of 1 second.
Step 2: Determine how fast the application process needs to be
If you are building a game, is it reasonable to wait 15 seconds before each action? Due to the low block processing time of Ethereum, games built on it will cause poor user experience due to Ethereum's throughput. However, the application for the transfer of housing property rights can be run on Ethereum. Use the Cosmos SDK to build an application that allows developers to freely use Tendermint Core. It has a short block processing time and high throughput, and is capable of processing 10,000 transactions per second. You can reduce the required communication overhead and speed up the application by setting the maximum number of validators for the application.
Step 3: Determine the application's demand for decentralization
Some applications such as games may not require very high censorship resistance as a by-product of decentralization. In theory, does it really matter that the validator can create a cartel in the game and reverse the transaction result for profit? If it is not important, a blockchain such as EOS may be more suitable for your needs because of the fast transaction speed and free fees. However, some applications such as autonomous banks are more powerful and decentralized. Although Ethereum is considered to be decentralized, some supporters claim that Ethereum's mining pool is an important part of centralized platform, although there are actually only 11 validators (mining pools). One of the major benefits of building your own blockchain instead of building on a smart contract platform is that you can customize the way the application completes verification. However, it is difficult to build your own blockchain, so the Cosmos SDK is very useful, you can easily build your own blockchain and customize the degree of decentralization you need.
Step 4: Determine whether the system can be terminated
If you are building a new application similar to a distributed ride-sharing service, then ensuring 24/7 service must be the first priority, even if there are occasional errors in accounting similar to transactions. One of the properties of Tendermint Core is that if there is a disagreement between network validators, the network will suspend operations instead of proceeding erroneous transactions. Applications such as decentralized exchanges require correctness at all costs-if there is a problem, it is far better to suspend trading on the decentralized exchange than there may be trading problems.
Summary: Choose a suitable consensus algorithm after weighing the advantages and disadvantages
All in all, there is no single best consensus algorithm. Each consensus algorithm has its own value and advantages. You need to have your own judgments and choices. However, by understanding the relevant processes of the consensus mechanism, including proposals and agreements, and establishing a framework to consider the types of consensus algorithms that your application may require, you should be able to make wiser decisions.
4.2 Future development of consensus mechanism
The consensus algorithm is one of the core elements of the blockchain. Although there are more than 30 consensus mechanisms listed in the article, there are still many niche consensus mechanisms that may not be discussed. As the blockchain technology is gradually known and accepted by the public, more and more newer and better consensus algorithms may appear in the future, which may be brand-new consensus algorithms, and more should be improvement and optimization version based on the current consensus algorithm.
After 2016 and 2017 years’ fast development, the current consensus algorithm does not have a recognized evaluation standard, but is generally more biased towards fairness and decentralization, as well as some technical related issues, such as energy consumption and scalability , Fault tolerance and security, etc. However, blockchain technology must be combined with requirements and application scenarios, and the consensus mechanism algorithm and incentive mechanism are inseparable. How to customize a suitable consensus mechanism according to the characteristics of your own project and optimize the current consensus mechanism will become the future direction of consensus mechanism development
CelesOS
As the first DPOW financial blockchain operating system, CelesOS adopts consensus mechanism 3.0 to break through the "impossible triangle", which can provide high TPS while also allowing for decentralization. Committed to creating a financial blockchain operating system that embraces supervision, providing services for financial institutions and the development of applications on the supervision chain, and formulating a role and consensus ecological supervision layer agreement for supervision.
The CelesOS team is dedicated to building a bridge between blockchain and regulatory agencies/financial industry. We believe that only blockchain technology that cooperates with regulators will have a real future. We believe in and contribute to achieving this goal.
📷Website
https://www.celesos.com/
📷 Telegram
https://t.me/celeschain
📷 Twitter
https://twitter.com/CelesChain
📷 Reddit
https://www.reddit.com/useCelesOS
📷 Medium
https://medium.com/@celesos
📷 Facebook
https://www.facebook.com/CelesOS1
📷 Youtube
https://www.youtube.com/channel/UC1Xsd8wU957D-R8RQVZPfGA
submitted by CelesOS to u/CelesOS [link] [comments]

Strengthening Data Security Using Blockchain

https://www.cxotoday.com/news-analysis/strengthening-data-security-using-blockchain/
With businesses across the world riding the digital wave, data will be a key competitive differentiator in their successful transformation stories. Besides the massive data deluge, with the advent of hybrid cloud business models today, data goes beyond the perimeter of an organization. While data leaks and hacks can prove to be hazardous for any organization, it would especially be damaging in cases where data is centralized. This leads to a powerful shift in the paradigm for decentralized and distributed ledger technology (DLT) applications.
Security ‘hexad’ using blockchain
Blockchain is a foundational technology that has the potential to revolutionize the world, similar to what the internet did in the past. The information security triad can be enhanced to a ‘hexad’ with blockchain-based decentralized data security for enterprises.
The decentralized immutable distributed-ledger technology on a peer-to-peer (P2P) network based on cryptographic concepts and consensus algorithms uses a cryptographic one-way hash, internally which helps to identify any alteration done to the blockchain data making it more transparent, reliable, trustable and independent also ensuring data integrity.
Asymmetric encryption with public-private key pair is used for making transactions on the ledger providing non-repudiation, and accountability. Since data is distributed on a P2P network (ensuring availability), there’s no single point of failure making it difficult for hackers to tamper data at multiple places. Consensus algorithms, or conditions on which a group agrees to put transactions in blockchain, help in decentralized distribution of power and forms the base of trust.
Permissioned blockchain (example Hyper-ledger Fabric) are kind of hybrid models where networks require participants to have authorization for access thus ensuring privacy. These could be used by multiple organizations participating in the blockchain network forming a consortium in a decentralized way while maintaining confidentiality. Fine-grained access control and data sharing mechanisms ensure that confidential data is shared only among the intended audience. While permission-less blockchain (example Bitcoin) have data publicly available to view, it would have computing intensive or complex powerful consensus algorithms to validate and update ledgers in order to deter DOS (Denial-of-service) attacks.
Data once entered in a blockchain network is immutable, i.e. not changeable until more than one-third of the network is compromised, which would ideally not be the case in a P2P distributed network. This also helps in establishing trust between unknown parties without the need for intermediaries, further reducing transactional and operational costs.
When data goes beyond the perimeter, organizations can be sure that data is unaltered, not accessed by cloud vendors or anyone else ensuring privacy and integrity. Confidential agreements could be on blockchain using smart contracts which execute automatically when consensus conditions are met. Any litigation or disputes raised could be easily settled real-time, thus establishing accountability. The features in the hexad, along with immutable data in blockchain, make auditing easy and reliable.
Reducing cyberattacks and enhancing security
When a request is placed on a browser, it sends it to a network of computers called Domain Naming System (DNS). DNS is like a phonebook for the internet. It resolves the website to an IP address which helps in connecting to the right server on the internet. Typically, DNS servers are centralized by nature. Making DNS decentralized and distributed using blockchain could reduce cyberattacks and enhance security.
Multi-layered security frameworks based on blockchain technology decentralize the risk and reduce sophisticated phishing attacks for organizations. Encrypted data, decentralized storage and publicly visible ledgers (for transparency) can instill a new set of cybersecurity priorities for governments and other public institutions, while private and permissioned blockchain help in transforming the enterprise data operational models.
Identity verification procedures provided by authorized institutions on blockchain network help for secure and reliable validation and sharing of information. Device identity on blockchain for IoT security can reduce device impersonation and spoofing attacks. End users who worry about the security of their digital footprint can be self-sovereign, i.e., own data and share on need basis on a decentralized internet using blockchain. This also makes customers active stakeholders and can change how organizations handle information from everybody who interacts with their network, transforming the business models.
Blockchain- now and the future
Hyper-ledger umbrella is a global open source collaborative effort hosted by the Linux Foundation for multiple blockchain projects, libraries and tools for various enterprise and industrial deployments. Blockstack is an open source blockchain-based decentralized computing platform which provides a full- stack alternative to traditional cloud computing for building secure decentralized applications.
US space-agency NASA utilizes blockchain technology open source permissioned network for tracking air-traffic to curb cyberattacks on aerospace agents. This is to enhance privacy and security of aircraft data for corporate and military flight operations, helping in preventing unwarranted public access to confidential data. NASA has also signed up for an autonomous spacecraft project based on blockchain along with AI, networking and sensor-based technologies.
Certain quantum computing techniques have the potential to break the cryptography algorithms used in blockchain but less likely in permission blockchain since the participants are verified and authorized. The solution is to build quantum-resistant ledgers. Enterprises adopting this technology need to pick appropriate use cases to get maximum benefit.
In the future, world trade, tokenization of valuable assets, self-sovereign digital identity, public sector facilities and benefits, health-care data, strengthening security, congruence of IoT, AI and blockchain for autonomous decentralized products and services are likely to have wide adoption in real-time based on blockchain technology.
Enterprises with hybrid cloud models adopting blockchain for data security can be confident about their data security even beyond the perimeter, and ensure required audit and compliances with reduced costs. The disruptive and transformative potential of blockchain technology in enhancing data security will enable the emergence of new models, helping in digitally transforming the ecosystem for the better of the world.
submitted by BlockDotCo to u/BlockDotCo [link] [comments]

The Network of Networks, Scalable Interoperability to Unleash the True Potential of Blockchain

The Network of Networks, Scalable Interoperability to Unleash the True Potential of Blockchain
There is not going to be one blockchain to rule them all, each have their own advantages and disadvantages. Interoperability is key to unlocking the true potential of blockchain, where it will have a profound effect across all industries, creating a secure, trusted and hyper-connected world.
The rise of The Networks of Networks, interconnecting all DLT Networks, existing off-chain networks and even the Internet itself. Where true, scalable interoperability can be achieved without requiring connected chains to fork their code and imposing limitations, without the overhead, bottleneck and single point of failure of adding another blockchain in the middle. Where it will be quick, easy and free to participate.
It’s time to stop the childish tribalism that’s plagued this space for so long and realise the bigger picture. Tribes fighting amongst themselves over a tiny insignificant island where there is a whole world out there to conquer if they work together. A rising tide lifts all boats and with the birth of The Network of Networks all connected projects can benefit from the efforts of each other, to usher in Mass adoption of Blockchain.
https://preview.redd.it/wlwj7pmmyoi41.png?width=683&format=png&auto=webp&s=34918b25c8ef6303fc5579666352e8c8c52c4835
In this article I will discuss the foundations that are being laid in preparation for the release of Overledger Network, The Network of Networks to make all of this possible and to unleash the true potential of blockchain with a secure, hyper-connected decentralised ecosystem. Table of Contents:
  1. Overledger SDK Update
  2. Standards
  3. Security
  4. Regulation
  5. Overledger Network
  6. The Five Ingredients of Interoperability
  7. Connecting Blockchain and Non-DLT Applications / Networks to Overledger
  8. Connecting the Internet directly to blockchain
  9. Join your favourite Blockchain project to the Overledger Network Ecosystem

Overledger SDK Update

Quant have just released their Overledger SDK update which has enabled standardisation of objects to abstract and simplify how to interact with different types of blockchains (UXTO and Account-based) in a common model. As well as the ability to directly deploy, invoke and query smart contracts directly through Overledger. I strongly recommend reading the teams Overledger SDK Update which explains it in more detail and includes example use cases of how Overledger is being used and the benefits it brings. Dr Luke Riley also did a fantastic job providing an in-depth demo of the Overledger SDK Update via Video as well.
https://youtu.be/PbpaZpe4mTQ

“This update sets the foundations to build the ecosystem for Overleger Network, allowing stakeholders other than Quant to write any type (DLT and non-DLT) Overledger connectors and sets up the ecosystem with multiple entry points for Overledger Gateways. These updates open up the integration capabilities of Overledger to 3rd parties and create the foundations for the Overledger Network”

Standards

“Trusted standards mean that industry doesn’t need to reinvent the wheel, that innovations will be compatible and work with existing technology, and that products and services will be trusted too. Governments use standards as trusted solutions to complement regulation, and they give peace of mind to consumers who know they are not putting themselves or their families at risk.” — Acting ISO Secretary-General Kevin McKinley
The foundations need to align with internationally recognised standards as they play a crucial role in ensuring interoperability with new and existing technology and validates a product meets the best practices / regulation required to ensure Enterprises remains in compliance. CEO of Quant, Gilbert Verdian, founded the ISO TC 307 standard covering blockchain as a whole, which 56 countries are working towards today.
Countries involved with ISO TC 307 — https://www.iso.org/committee/6266604.html?view=participation
Gilbert Verdian is the chairman for the ISO TC 307 working group for interoperability of blockchain and distributed ledger technology systems as well as being chairman for Blockchain and Distributed Ledger Technology for BSI (British Standards Institution) which represent the UK and includes companies such as Quant, IBM, Microsoft, HSBC, BAE Systems, Huawei as well as a number of UK Government bodies such as BEIS — Department for Business, Energy & Industrial Strategy, Defence Science and Technology and the National Cyber Security Centre.
The standardisation updates to the Overledger SDK aligns with the work in ISO TC 307 and academic work from Dr Paolo Tasca and Dr Claudio Tessone to provide users with a clear distributed ledger data standard. This will enable everyone to easily create connectors in a standard way, facilitating interoperability with all of the connected blockchains / non-DLT networks that are already connected to Overledger through Overledger Gateways.

Security

Cybersecurity is in Quant’s DNA. The team have a rich heritage of working for Governments, banks and industry for over 20 years protecting organisations and people from security threats. Before Quant, Gilbert Verdian was the Chief Information Security Officer for Vocalink (Mastercard) where he was in charge of security for the entire payments infrastructure in the UK (£6 Trillion per year).
Gilbert has led a team determined to take security to another level, protecting a critical part of the UK’s infrastructure, protecting UK citizens and businesses from fraud and risk and, by extension, allowing them to live as they want to. Under Gilbert’s guidance, Vocalink security is not merely best-in-class, but setting a new standard. — https://connect.vocalink.com/2017/july/a-winning-streak/
In addition to Quant being selected as a Guarantor for Pay.UK, Gilbert has also been appointed to the Cybersecurity Advisory Board (Pay.UK is the UK’s leading retail payments authority and runs the UK’s retail payments operations, which includes Bacs, Faster Payments and Cheques.)
The pillars of security are Confidentiality, Integrity and Availability. As such, they have used their experience in running payment and financial infrastructure and critical national infrastructure for nations and embedded these principles into every aspect of Overledger.

Regulation

Regulation is playing an ever increasing role for blockchain. Standards and Security naturally complement and help define regulation. The verticals Quant are involved in with regards to regulation span the globe. Gilbert helped shape the conversation about consumer data protection rights during his time as CISO of NSW Health, and is continuing to serve as a cornerstone for policy within the adoption of blockchain in public infrastructure. Quant serves as a founding member of INATBA (The International Association of Trusted Blockchain Applications), which is the formal governing body of the European Blockchain Partnership, all of which is overseen in Brussels by the EU. More locally, Gilbert and team are in consistent contact with the House of Lords within the UK, and advises the FCA in matters regarding cryptoassets.
https://preview.redd.it/9eynt6jpyoi41.png?width=735&format=png&auto=webp&s=c6073e7717ece1c8b878e02e34c9e359e3282fd7
As recently seen in the SDK update, Overledger can serve as a key component of automatic compliance of governance bodies’ financial regulation, shown here by an Overledger instance reporting to the BoE’s Prudential Regulation Authority. Project BARAC, stewarded by University College London, is a project examining the impact Automatic Regulation as administered by Blockchain can have on the Federal Government. Most notably, the FCA and R3, the developers of Corda, are involved here. Gilbert’s recent engagements with the Federal Reserve Bank of Boston also seem to revolve around this very topic, with the Boston Fed pilot-testing a Supervisor Node for automatic regulatory compliance. While at P2PFISY 2019, it was noted by Gilbert that Raphael Auer’s “Regulation Automata” aligns very well with the vision of Overledger, with Paolo Tasca, former CSO of Quant, more recently co-hosting a recent blockchain panel with him. Raphael’s ideas will most likely be taken into consideration by the BIS, as they recently announced a trial of a 6 central banks collaboration centered around exploring CBDC, and are in the early stages of installing Innovation Hubs in Hong Kong, Switzerland, and Singapore.
Gilbert Verdian with Guy Dietrich (Managing Director at Rockefeller Capital who is also on the Board at Quant) attending a meeting with the Financial Conduct Authority

Overledger Network

https://preview.redd.it/1wgbdybryoi41.png?width=1684&format=png&auto=webp&s=baf87b413947a19e745fcd859c0706a1cf8570b2
The Overledger Network is a network of networks, which allows enterprise and communities stakeholders to access and participate in a growing hyper-connected decentralised ecosystem. Enterprises, banks, central banks, trading venues, etc will be able to host their own secure dedicated gateways, enabling secure connectivity to permissioned networks, permissionless networks, ecosystems, consortia and other distributed technologies. Community members will also be able to run an Overledger gateway to further enhance the scalability, decentralisation and optimise network latency, providing enterprises, developers and users choice to use the closest gateway when accessing permissionless blockchains. The Overledger gateways will create a scalable p2p network that shares the transaction and volume between participants and chooses the closest or largest node to transact with.
As per the example use case in the recent update a Bank can run an Overledger Gateway to provide access to the various consortiums hosted on a variety of blockchains including Corda, Hyperledger Fabric and JP Morgan’s Quorum as well as access to the legacy / non-DLT platforms. Should they want to utilise a public blockchain as well in a hybrid scenario then they also have the option of using a Overledger Gateway hosted by a community member.
https://preview.redd.it/veb0q18syoi41.png?width=1096&format=png&auto=webp&s=c8ea3bedd09e16e548c6da938d50f3b245e18ac6

https://preview.redd.it/r9j1v04tyoi41.png?width=1252&format=png&auto=webp&s=ae9cc70a01f6360550d7f1f00e046d9b801b89a1
The Overledger Gateways contain several layers which we will explore some of their features below:

Overledger Operating System

https://preview.redd.it/9v7rxtmvyoi41.png?width=1197&format=png&auto=webp&s=01c9d6e0a73f595283e3cebeb45b5a6bf484d94d
Overledger allows connection to any blockchain / DAG as well as easily integrating with existing non-DLT environments. It does this without adding the overhead of yet another blockchain / consensus in the middle, ensuring that it’s scalable and doesn’t contain a single point of failure. Nor does it require the connected blockchains to fork their code to integrate and place restrictions on what can be implemented going forward. All of this is done in a secure, trustless manner where transactions are signed and encrypted client side so the contents can’t be viewed / modified as they pass through Overledger. It currently connects all of the leading permissioned and permissionless blockchains used by enterprises today. This article explains the differences between other interoperability solutions and the benefits of Quant’s approach

The Five Ingredients of Interoperability:

Recently there was an interoperability webinar with Fintech connect with speakers such as R3’s CTO Richard Gendal Brown, along with representatives from the Bank of England, Deutsche Boerse, Nasdaq, ArchaxEx and SwissRe. Richard Gendal Brown from R3 wrote about the Five key Ingredients of Interoperability:
https://preview.redd.it/18e9wwq7zoi41.png?width=2356&format=png&auto=webp&s=537b2e70139bb0e70fcd615c497541fc89bba97f
  1. INTEGRATE with existing business systems — Businesses aren’t going to replace their existing applications for new blockchain ones, they need to integrate with their existing systems.
  2. INITIATE Payments on existing rails or blockchain rails — Needs to be able to make a payment / settlement using a wide variety of existing payment rails (off chain) as well as blockchain rails, ensuring delivery vs payment can be achieved with certainty that they have happened.
  3. INTERCHAIN applications and smart contracts that can be deployed / executed across protocols — Enabling a solution built on Corda such as Marco Polo to easily connect to a solution on another platform such as Vakt on Ethereum or CargoSmart on Hyperledger Fabric etc
  4. INTRACHAIN applications that benefit from value add of same underlying protocol — What happens when networks such as Marco Polo and Contour both running on Corda want to interoperate and the additional value and benefit that can be achieved.
  5. INTERCHANGE applications to switch platforms — What happens if you want to interchange one platform for another. Can you achieve that holy grail of interoperability by being able to be completely agnostic to the underlying platform?
Overledger meets all of these key ingredients in performing interoperability. Overledger enables existing business systems to benefit from blockchain connectivity by adding as little as 3 lines of code to their existing applications. No need to completely rewrite / replace their existing systems and all done in the most common programming languages such as Java and JavaScript.
https://preview.redd.it/7jqjt9v8zoi41.png?width=1127&format=png&auto=webp&s=6f40c1ae463d76c6c6b46a9e716e544e06ef3cd4
At QuantX in December they announced Overledger Interchange which enables settlement on a variety of existing non-dlt payment rails such as Faster Payments, BACS, CHAPS, SEPA, SWIFT as well as on DLT payment rails such as with Central Bank Digital Currencies, Stablecoins and XRP. It also facilitates Cross Chain Atomic Swaps using Hash Time Locked Contracts ensuring Delivery vs Payment is achieved. Interchange is at the centre of the discussions Quant has had with traditional exchanges in capital markets and central banks and is a technology financial services have been missing and was built it address client needs.
Overledger enables interoperability within the same ecosystem such as Corda DAPP to another Corda DAPP etc as well as interoperability between any of the connected permissionless and permissioned blockchains.
Quants blockchain agnostic Operating System enables users to benefit from using the best features from different chains in combination and migrate between them, preventing Vendor or Tech Lock in without having to completely rewrite existing applications, achieving the holy grail of interoperability. It enables developers to quickly test a variety of connected blockchains in a sandbox environment to see which is best suited for their requirements, starting with just 3 lines of code.

Transactions Services Layer

https://preview.redd.it/xfthwuz9zoi41.png?width=771&format=png&auto=webp&s=8721b0ae8cff0d8aa11a484ac0ac842e700def0a
The Transaction Services layer handles more complex features of Overledger. Allowing for applications to request services such as cross-chain atomic swaps, treaty contracts (Multi Chain Smart Contracts as well as enabling smart contract functionality even on blockchains that don’t support smart contracts natively such as Bitcoin) and transaction brokering (using heuristic analysis to determine which method is the fastest / cheapest out of the various payment rails)

Financial Services Layer

https://preview.redd.it/4zgt0umazoi41.png?width=740&format=png&auto=webp&s=49a840532d70740a77c00901aafd047311b84229
Financial services features can be called upon by participants and applications to use crosschain and cross-platform. Financial Services specific use cases can use the features in Overledger to operate across networks. This layer provides enhanced privacy and security to regulated entities and institutions who require additional controls to maintain compliance to regulation and security policy. The features of Zero-knowledge Proof and privacy can be mandated for all transactions.

Channels Layer

https://preview.redd.it/ef5z0jbbzoi41.png?width=752&format=png&auto=webp&s=3fd398e0b9917e338fb6c3e0afb477d82dfeb1c8
Channels provide interoperability of services related to digital assets, payments and tokenisation. The Overledger Network allows for participants to transfer interoperate enterprise and institutional issued tokens and assets. Connect to many existing payment rails such as SWIFT, SEPA, Faster Payments etc.
https://preview.redd.it/0u93b51czoi41.png?width=1441&format=png&auto=webp&s=a7ecbf440684a926b66db7273fdba9acfda826d7

Connecting Blockchain and Non-DLT Applications / Networks to Overledger

The connectors to Overledger which grant access to Overledger Network will be open source and soon be made available, allowing for anyone to create a connector and benefit from being part of the ecosystem. Currently the permissionless blockchain space is mostly speculation with little adoption, mainly due to issues that need to be resolved such as scalability, privacy and regulation with permissionless blockchains, however there are some extremely large Enterprises, Banks, Governments, even Central Banks getting heavily involved and going into production albeit mostly in the permissioned blockchain space where such issues are not a problem. Just as each Blockchain has its advantages and disadvantages, parts of Enterprise applications are better suited to Permissioned blockchains (such as more sensitive parts) and permissionless blockchains suited for a higher degree of immutability, thus a Hybrid model requiring interoperability between permissioned, permissionless as well as existing non-DLT applications is required arguably for many years ahead. Just as with cloud computing where everything didn’t suddenly just move up into the cloud, well over a decade later since the birth of the likes of Amazon AWS, hybrid is still very prevalent today with only recently the likes of central banks, banks, governments discussing moving more sensitive workloads to public clouds such as Amazon AWS, Microsoft Azure, Oracle Cloud etc.

SIA, Central Banks, Banks, Trading Venues

Quant Network partnered with SIA, a game changer for mass blockchain adoption by Financial Institutions. SIA is the leading financial network provider in Europe that connects over 570 Banks, Central Banks, Trading Venues (stock exchanges etc) to their infrastructure. They provide a dedicated private network / infrastructure for financial institutions. Every European financial institution will either connect via SIA, in partnership with Colt or via SWIFT (and in many cases they will have connectivity with both) in order to access the Eurosystem Single Market Infrastructure Gateway, granting access to all RTGS, Securities and Instant Payment transactions for Europe.
SIA have integrated Overledger into their private infrastructure covering Europe consisting of 570 supernodes called SIAChain which enables each bank, central Bank, trading venue etc to utilise Overledger for interoperability. Some of the largest deployments of blockchain are happening on SIAChain such as the Spunta project where the entire Italian Banking Sector will be using blockchain and due to go live next month. As well as the “Fideiussioni Digitali” initiative (Digital Sureties) to digitize the management of sureties using blockchain technology with the Central Bank of Italy involved.
Central Bank Digital Currencies are going to play a hugely significant role in the future and there is one central Bank currently testing Overledger and Quant are in discussions with 4 others.
Connecting your blockchain / legacy network to Overledger enables the possibility that it could be used by any of these connected Banks, Central Banks, Trading venues etc in their private network (obviously due to the amount of regulation and critical financial infrastructure the options are going to be limited on what they want to connect).
https://preview.redd.it/ob1vzu7dzoi41.png?width=1336&format=png&auto=webp&s=af9fc79d4749005e60666e3f21cee1a10e9b2275

Oracle

Quant are a Fintech Partner with Oracle, the 2nd largest software company in the world and Oracle are taking Quant’s tech to their clients directly. They have 480,000 clients globally and towards the end of last year Oracle invited Quant to attend Sibos (SWIFT) where they met existing financial services and banking clients and introduced to new ones. By connecting to Overledger this also enables your solution to potentially be used by those 480,000 of Oracle’s global clients.
https://preview.redd.it/rgo9n1ydzoi41.png?width=1220&format=png&auto=webp&s=2521b5968cfb2d8533da0963d3f838b9f518faa5

SIMBA Chain

SIMBA Chain is a cloud-based, smart-contract-as-a-service (SCaaS) platform, enabling users across a variety of skill sets to implement dapps (decentralized applications). The easy-to-use platform is tailored for users, developers, government, and enterprises to quickly deploy blockchain dapps for their enterprise. SIMBA Chain are developing on Quant’s Overledger Blockchain OS to allow them to deploy DAPPs across multiple connected blockchains.
SIMBA Chain have recently been awared a $9.5 million contract with the US Navy, they are also working with the US Air Force. They have a thriving ecosystem with over 1100 Organizations and 650+ Applications developed. Partners include Microsoft, Government Blockchain Association, Air Force Research Laboratory, Caterpillar, SAP and EY. Recently they also integrated Unity 3D plugin for Gaming to enable owning, storing, and managing all personal gaming assets across a variety of blockchains.
These are just a few of the companies that Quant have partnered with directly, but the ecosystem for Overledger Network is the Network of Networks. Every connected blockchain (Bitcoin, Ethereum, Ripple (XRPL), EOS, Stellar, IOTA, DAG, R3’s Corda, Hyperledger Fabric, JP Morgan’s Quorum and other Permissioned Variants of Ethereum) and their associated partners / applications built on them have the ability to connect and interoperate with the other blockchains connected as well as non-DLT networks such as existing payment rails like SWIFT, Faster Payments, SEPA etc. This Network of Network’s effects will grow exponentially as more and more join the ecosystem.
https://preview.redd.it/fd1m5uvezoi41.png?width=590&format=png&auto=webp&s=99c5b1893d851ba1effe7b5e73480c27f3f7973e

Connecting the Internet directly to blockchain

Quant Network are also developing the ability to allow developers to build MAPPs that integrate directly with the internet as well as blockchain data. They will enable this via creating a new IP address for blockchains which they are calling Quant IP which will enable traffic to be routed from an IP connection from the Internet through Overledger to the connected blockchains.
Another Quant product called Seeq is a distributed search engine that is able to search and retrieve data from multiple blockchains and display them via html directly from the blockchain. More details will be released about Seeq later this year.
Connecting the Internet directly to blockchain will allow websites to be natively created and served directly from blockchains, without the need to have, run and maintain web servers, web services, SSL certificates etc and all running in a completely trusted, extremely resilient / tamperproof environment. The implications of this are enormous and more details will be released by the team later on this exciting prospect. By connecting your blockchain to Overledger you will also be able to benefit from this.

Join your favourite Blockchain project to the Overledger Network Ecosystem

Instead of the current mentality of having the main focus for many projects of listing on exchanges for vast sums of money, why not spend a little time (connectors can be created in as little as a week of development and don’t necessarily even need to be created by the team themselves) and make your blockchain / non-DLT application available to be used by all existing enterprises / members. Not only that but if you also run an Overledger Gateway connecting your blockchain node you also benefit from the transaction fees of the traffic going to it. The connectors are open source and completely free to connect and now with the standardisation of Objects in the recent SDK update the foundations are in place for the launch of Overledger Network with an ETA of Q2 2020. If you would like your favourite blockchain project to interoperate and be part of the ecosystem to further adoption then make the relevant people aware and keep an eye out for further details released in the future.

https://medium.com/@CryptoSeq/the-network-of-networks-scalable-interoperability-to-unleash-the-true-potential-of-blockchain-c54e7d373d2d

Thanks to community member Ghost of St. Miklos for contributing the section about regulation as well as Sonic for proofreading.
You can find more about Overledger Network as well as the token utility — here and community member David W. wrote an excellent article “A deeper look into the Quant Network Utility Token (QNT) valuation dynamics and fundamentals”
What is a blockchain operating system and what are the benefits? Introducing Overledger from Quant Network.
Wall Street 2.0: How Blockchain will revolutionise Wall Street and a closer look at Quant Network’s Partnership with AX Trading
Large Enterprise Adoption of Blockchain is happening, enabled by Quant Network’s Overledger
As well as an 8 Part Series taking an indepth look at Overledger starting with Part 1
submitted by xSeq22x to QuantNetwork [link] [comments]

Gold Token; The stable coin that converts physcial gold to digital gold

Gold Token; The stable coin that converts physcial gold to digital gold
Today I will summarize you a few knowledge about Blockchain Technology !!
Blockchain, the preliminary block chain name is a hierarchical database that shops records in blocks of statistics that are related via encryption and make bigger over time. Each data block contains facts about the initialization time and is connected to the previous block, with a time code and transaction information. Blockchain is designed to withstand data change: Once the information is usual with the aid of the community, there may be no manner to change it.
Blockchain is guaranteed via the layout the usage of hierarchical computing machine with high tolerance of byzantine mistakes. So decentralized consensus can be done by Blockchain. So Blockchain is appropriate for recording activities, scientific statistics, transaction processing, notarization, identification and proving beginning. This has the potential to assist put off primary results while information is modified within the context of world trade.

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The first blockchain changed into invented and designed by means of Satoshi Nakamoto in 2008 and changed into realized the following 12 months as a center a part of Bitcoin, while blockchain technology acts as a ledger for all deal.
Through the usage of peer networks and a hierarchical statistics device, Bitcoin blockchain is controlled robotically. The invention of the blockchain for Bitcoin has made it the first digital currency to resolve the double spending trouble when a single amount of money is used two times. This technology of Bitcoin has become an proposal for a variety of different applications.

Blockchain and cryptocurrency: Special blockchain promotes its strength in dealing with and trading on-line assets which are currently the maximum popular bitcoin. Since there's handiest a confined number of (21 million bitcoins), however the want to spend money on bitcoin as a source of asset replacements for gold, foreign currencies and shares.
Constantly escalating, the rate of bitcoin has extended dramatically. Uncontrolled by means of the authorities, without inflation and having to exploit like gold, this currency is the supply of rescuing Venezuela's hyper-inflationary country - where humans hardly ever buy something with the neighborhood currency but owns the largest bitcoin mines within the global. However, bitcoin also has a dilemma trouble owned by the network that is nonetheless debating the answer.

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In the past few years, the Blockchain generation has been used as a device to document the records of cryptocurrency transactions. Bitcoin turned into a success and grew unexpectedly when it convinced the fastidious customers. Bitcoin is surely treasured and it's far traded and saved securely online. Everyone thinks that Bitcoin will open a new generation for industrial revolution, the 4.0 commercial revolution in which blockchain technology is widely used.

The destiny of Blockchain era: The emergence of Blockchain as well as milestones when personal computer systems or Internet are born, this system will trade the manner we apprehend and understand society. The biggest capability is to create a place to use Smart Contract: agreements in contracts and transactions will be confirmed without disclosing data between events with a positive middleman while ensuring the entirety is the maximum obvious and sure.

Information in Blockchain can't be counterfeited (but may additionally nonetheless go away strains), all modifications want to get consensus of all taking part nodes within the machine. It is a gadget that does not easily disintegrate, due to the fact even supposing one a part of the community is numb, the opposite nodes will continue to function to protect the data. Blockchain technology opens a new trend for regions along with banking and finance, logistics, electronics and telecommunications, accounting and auditing.

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Not simplest that Blockchain is likewise the center of Internet of Things (IoT). Electronic devices can talk thoroughly and transparently, unrighteous efforts within the Internet international will no longer paintings, and lots greater ...Currently there are numerous large organizations and companies which are constructing their own Blockchain network. So we can quickly see this could create a wave for the future.

GOLD: Gold has been broadly used around the sector as a means of foreign money conversion, both by using issuing and spotting gold cash or other steel numbers, or via paper money equipment. Converted into gold by developing a gold popular wherein the full fee of the money issued is represented by a gold reserve.

Do you trust Gold could be digitized? I am speaking about the blockchain utility challenge in gold digitization. DIGITAL GOLD challenge will turn physical gold into virtual gold. It may be said that that is a assignment full of formidable thoughts that I even have never visible however also promising and creative. This task helps bridge the space among gold and different digital ecosystems.

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DIGITAL GOLD Securely Store and Make payments in Gold

DIGITAL GOLD is a task evolved based on blockchain technology. The intention of this project is to digitize the financial marketplace and at the identical time digitize their improvement funding units. The Digital Gold (link https://gold.Storage/) project will launch Gold token based on Ethereum ERC-20 and be sponsored through bodily gold. Users can buy Gold without delay with none drawback. 1 GOLD token might be equal to one gram of physical gold 99.99%.
And the special aspect that customers can accept as true with is physical gold stored inside the company's warehouse. This makes customers in reality consider in the business enterprise's mission. Customers who purchase tokens can change not directly (transactions are done quickly due to the fact the challenge is carried out with blockchain era, does not require complex methods like normal transactions), can store it as saved store your house.
Another super aspect, while the client buys GOLD token, the value of that token can be constant in step with the physical gold price at that point. So GOLD token is similar to Stablecoin, which enables defend customers towards marketplace volatility inside the cryptocurrency market, even as helping customers advantage from gold's long-term charge increases.

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Currently, the utility of Blockchain era into payment is turning into extra famous and gold digitization will genuinely growth the attraction for this uncommon metallic. This will create a liquidity for GOLD token, ensuring that always, where liquidity is constantly maintained, customers can without difficulty capture the quantity of Gold tokens presently circulating inside the marketplace and the number of Token How plenty is saved in stock? Liquidity is the survival of the project.
The application of Blockchain generation into Digital Gold task: the application of blockchain era into this venture helps to enhance the transaction capability, the transactions are made speedy, the transaction charge is very low, implemented via Ethereum block.
The protection of patron records is likewise guaranteed from network assaults, clever settlement applications, supports all ERC20 wallets and Gold tokens on buying and selling platforms (accomplice platform). With the improvement of blockchain technology, gold can now act as a charge for all transactions, gold is not only stored however additionally traded as an investment tool.
Official Website : https://gold.Storage/ White paper: https://gold.Storage/wp.Pdf Telegram: https://t.Me/digitalgoldcoin Twitter: https://twitter.Com/golderc20
Author: Cryptobae10 https://bitcointalk.org/index.php?action=profile;u=2023123
submitted by mkristen024 to ICOAnalysis [link] [comments]

The Decade in Blockchain — 2010 to 2020 in Review

2010

February — The first ever cryptocurrency exchange, Bitcoin Market, is established. The first trade takes place a month later.
April — The first public bitcoin trade takes place: 1000BTC traded for $30 at an exchange rate of 0.03USD/1BTC
May — The first real-world bitcoin transaction is undertaken by Laszlo Hanyecz, who paid 10000BTC for two Papa John’s pizzas (Approximately $25 USD)
June — Bitcoin developer Gavin Andreson creates a faucet offering 5 free BTC to the public
July — First notable usage of the word “blockchain” appears on BitcoinTalk forum. Prior to this, it was referred to as ‘Proof-of-Work chain’
July — Bitcoin exchange named Magic The Gathering Online eXchange—also known as Mt. Gox—established
August —Bitcoin protocol bug leads to emergency hard fork
December — Satoshi Nakamoto ceases communication with the world

2011

January — One-quarter of the eventual total of 21M bitcoins have been generated
February — Bitcoin reaches parity for the first time with USD
April — Bitcoin reaches parity with EUR and GBP
June — WikiLeaks begins accepting Bitcoin donations
June — Mt. Gox hacked, resulting in suspension of trading and a precipitous price drop for Bitcoin
August — First Bitcoin Improvement Proposal: BIP Purpose and Guidelines
October — Litecoin released
December — Bitcoin featured as a major plot element in an episode of ‘The Good Wife’ as 9.45 million viewers watch.

2012

May — Bitcoin Magazine, founded by Mihai Alisie and Vitalik Buterin, publishes first issue
July — Government of Estonia begins incorporating blockchain into digital ID efforts
September — Bitcoin Foundation created
October — BitPay reports having over 1,000 merchants accepting bitcoin under its payment processing service
November — First Bitcoin halving to 25 BTC per block

2013

February — Reddit begins accepting bitcoins for Gold memberships
March — Cyprus government bailout levies bank accounts with over $100k. Flight to Bitcoin results in major price spike.
May —Total Bitcoin value surpasses 1 billion USD with 11M Bitcoin in circulation
May — The first cryptocurrency market rally and crash takes place. Prices rise from $13 to $220, and then drop to $70
June — First major cryptocurrency theft. 25,000 BTC is stolen from Bitcoin forum founder
July — Mastercoin becomes the first project to conduct an ICO
August — U.S. Federal Court issues opinion that Bitcoin is a currency or form of money
October — The FBI shuts down dark web marketplace Silk Road, confiscating approximately 26,000 bitcoins
November — Vitalik Buterin releases the Ethereum White Paper: “A Next-Generation Smart Contract and Decentralized Application Platform
December — The first commit to the Ethereum codebase takes place

2014

January — Vitalik Buterin announces Ethereum at the North American Bitcoin Conference in Miami
February — HMRC in the UK classifies Bitcoin as private money
March — Newsweek claims Dorian Nakamoto is Bitcoin creator. He is not
April — Gavin Wood releases the Ethereum Yellow Paper: “Ethereum: A Secure Decentralised Generalised Transaction Ledger
June — Ethereum Foundation established in Zug, Switzerland
June — US Marshals Service auctions off 30,000 Bitcoin confiscated from Silk Road. All are purchased by venture capitalist Tim Draper
July — Ethereum token launch raises 31,591 BTC ($18,439,086) over 42 days
September — TeraExchange launches first U.S. Commodity Futures Trading Commission approved Bitcoin over-the-counter swap
October — ConsenSys is founded by Joe Lubin
December — By year’s end, Paypal, Zynga, u/, Expedia, Newegg, Dell, Dish Network, and Microsoft are all accepting Bitcoin for payments

2015

January — Coinbase opens up the first U.S-based cryptocurrency exchange
February — Stripe initiates bitcoin payment integration for merchants
April — NASDAQ initiates blockchain trial
June — NYDFS releases final version of its BitLicense virtual currency regulations
July — Ethereum’s first live mainnet release—Frontier—launched.
August — Augur, the first token launch on the Ethereum network takes place
September — R3 consortium formed with nine financial institutions, increases to over 40 members within six months
October — Gemini exchange launches, founded by Tyler and Cameron Winklevoss
November — Announcement of first zero knowledge proof, ZK-Snarks
December — Linux Foundation establishes Hyperledger project

2016

January — Zcash announced
February — HyperLedger project announced by Linux Foundation with thirty founding members
March — Second Ethereum mainnet release, Homestead, is rolled out.
April — The DAO (decentralized autonomous organization) launches a 28-day crowdsale. After one month, it raises an Ether value of more than US$150M
May — Chinese Financial Blockchain Shenzhen Consortium launches with 31 members
June — The DAO is attacked with 3.6M of the 11.5M Ether in The DAO redirected to the attacker’s Ethereum account
July — The DAO attack results in a hard fork of the Ethereum Blockchain to recover funds. A minority group rejecting the hard fork continues to use the original blockchain renamed Ethereum Classic
July — Second Bitcoin halving to 12.5BTC per block mined
November — CME Launches Bitcoin Price Index

2017

January — Bitcoin price breaks US$1,000 for the first time in three years
February — Enterprise Ethereum Alliance formed with 30 founding members, over 150 members six months later
March — Multiple applications for Bitcoin ETFs rejected by the SEC
April — Bitcoin is officially recognized as currency by Japan
June — EOS begins its year-long ICO, eventually raising $4 billion
July — Parity hack exposes weaknesses in multisig wallets
August — Bitcoin Cash forks from the Bitcoin Network
October — Ethereum releases Byzantium soft fork network upgrade, part one of Metropolis
September — China bans ICOs
October — Bitcoin price surpasses $5,000 USD for the first time
November — Bitcoin price surpasses $10,000 USD for the first time
December — Ethereum Dapp Cryptokitties goes viral, pushing the Ethereum network to its limits

2018


January — Ethereum price peaks near $1400 USD
March — Google bans all ads pertaining to cryptocurrency
March — Twitter bans all ads pertaining to cryptocurrency
April — 2018 outpaces 2017 with $6.3 billion raised in token launches in the first four months of the year
April — EU government commits $300 million to developing blockchain projects
June — The U.S. Securities and Exchange Commission states that Ether is not a security.
July — Over 100,000 ERC20 tokens created
August — New York Stock Exchange owner announces Bakkt, a federally regulated digital asset exchange
October — Bitcoin’s 10th birthday
November — VC investment in blockchain tech surpasses $1 billion
December — 90% of banks in the US and Europe report exploration of blockchain tech

2019

January — Coinstar machines begin selling cryptocurrency at grocery stores across the US
February — Ethereum’s Constantinople hard fork is released, part two of Metropolis
April — Bitcoin surpasses 400 million total transactions
June — Facebook announces Libra
July — United States senate holds hearings titled ‘Examining Regulatory Frameworks for Digital Currencies and Blockchain”
August — Ethereum developer dominance reaches 4x that of any other blockchain
October — Over 80 million distinct Ethereum addresses have been created
September — Santander bank settles both sides of a $20 million bond on Ethereum
November — Over 3000 Dapps created. Of them, 2700 are built on Ethereum
submitted by blockstasy to CryptoTechnology [link] [comments]

The Network of Networks, Scalable Interoperability to Unleash the True Potential of Blockchain

The Network of Networks, Scalable Interoperability to Unleash the True Potential of Blockchain
There is not going to be one blockchain to rule them all, each have their own advantages and disadvantages. Interoperability is key to unlocking the true potential of blockchain, where it will have a profound effect across all industries, creating a secure, trusted and hyper-connected world.
The rise of The Networks of Networks, interconnecting all DLT Networks, existing off-chain networks and even the Internet itself. Where true, scalable interoperability can be achieved without requiring connected chains to fork their code and imposing limitations, without the overhead, bottleneck and single point of failure of adding another blockchain in the middle. Where it will be quick, easy and free to participate.
It’s time to stop the childish tribalism that’s plagued this space for so long and realise the bigger picture. Tribes fighting amongst themselves over a tiny insignificant island where there is a whole world out there to conquer if they work together. A rising tide lifts all boats and with the birth of The Network of Networks all connected projects can benefit from the efforts of each other, to usher in Mass adoption of Blockchain.
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In this article I will discuss the foundations that are being laid in preparation for the release of Overledger Network, The Network of Networks to make all of this possible and to unleash the true potential of blockchain with a secure, hyper-connected decentralised ecosystem. Table of Contents:
  1. Overledger SDK Update
  2. Standards
  3. Security
  4. Regulation
  5. Overledger Network
  6. The Five Ingredients of Interoperability
  7. Connecting Blockchain and Non-DLT Applications / Networks to Overledger
  8. Connecting the Internet directly to blockchain
  9. Join your favourite Blockchain project to the Overledger Network Ecosystem

Overledger SDK Update

Quant have just released their Overledger SDK update which has enabled standardisation of objects to abstract and simplify how to interact with different types of blockchains (UXTO and Account-based) in a common model. As well as the ability to directly deploy, invoke and query smart contracts directly through Overledger. I strongly recommend reading the teams Overledger SDK Update which explains it in more detail and includes example use cases of how Overledger is being used and the benefits it brings. Dr Luke Riley also did a fantastic job providing an in-depth demo of the Overledger SDK Update via Video as well.
https://youtu.be/PbpaZpe4mTQ

“This update sets the foundations to build the ecosystem for Overleger Network, allowing stakeholders other than Quant to write any type (DLT and non-DLT) Overledger connectors and sets up the ecosystem with multiple entry points for Overledger Gateways. These updates open up the integration capabilities of Overledger to 3rd parties and create the foundations for the Overledger Network”

Standards

“Trusted standards mean that industry doesn’t need to reinvent the wheel, that innovations will be compatible and work with existing technology, and that products and services will be trusted too. Governments use standards as trusted solutions to complement regulation, and they give peace of mind to consumers who know they are not putting themselves or their families at risk.” — Acting ISO Secretary-General Kevin McKinley
The foundations need to align with internationally recognised standards as they play a crucial role in ensuring interoperability with new and existing technology and validates a product meets the best practices / regulation required to ensure Enterprises remains in compliance. CEO of Quant, Gilbert Verdian, founded the ISO TC 307 standard covering blockchain as a whole, which 56 countries are working towards today.
Countries involved with ISO TC 307 — https://www.iso.org/committee/6266604.html?view=participation
Gilbert Verdian is the chairman for the ISO TC 307 working group for interoperability of blockchain and distributed ledger technology systems as well as being chairman for Blockchain and Distributed Ledger Technology for BSI (British Standards Institution) which represent the UK and includes companies such as Quant, IBM, Microsoft, HSBC, BAE Systems, Huawei as well as a number of UK Government bodies such as BEIS — Department for Business, Energy & Industrial Strategy, Defence Science and Technology and the National Cyber Security Centre.
The standardisation updates to the Overledger SDK aligns with the work in ISO TC 307 and academic work from Dr Paolo Tasca and Dr Claudio Tessone to provide users with a clear distributed ledger data standard. This will enable everyone to easily create connectors in a standard way, facilitating interoperability with all of the connected blockchains / non-DLT networks that are already connected to Overledger through Overledger Gateways.

Security

Cybersecurity is in Quant’s DNA. The team have a rich heritage of working for Governments, banks and industry for over 20 years protecting organisations and people from security threats. Before Quant, Gilbert Verdian was the Chief Information Security Officer for Vocalink (Mastercard) where he was in charge of security for the entire payments infrastructure in the UK (£6 Trillion per year).
Gilbert has led a team determined to take security to another level, protecting a critical part of the UK’s infrastructure, protecting UK citizens and businesses from fraud and risk and, by extension, allowing them to live as they want to. Under Gilbert’s guidance, Vocalink security is not merely best-in-class, but setting a new standard. — https://connect.vocalink.com/2017/july/a-winning-streak/
In addition to Quant being selected as a Guarantor for Pay.UK, Gilbert has also been appointed to the Cybersecurity Advisory Board (Pay.UK is the UK’s leading retail payments authority and runs the UK’s retail payments operations, which includes Bacs, Faster Payments and Cheques.)
The pillars of security are Confidentiality, Integrity and Availability. As such, they have used their experience in running payment and financial infrastructure and critical national infrastructure for nations and embedded these principles into every aspect of Overledger.

Regulation

Regulation is playing an ever increasing role for blockchain. Standards and Security naturally complement and help define regulation. The verticals Quant are involved in with regards to regulation span the globe. Gilbert helped shape the conversation about consumer data protection rights during his time as CISO of NSW Health, and is continuing to serve as a cornerstone for policy within the adoption of blockchain in public infrastructure. Quant serves as a founding member of INATBA (The International Association of Trusted Blockchain Applications), which is the formal governing body of the European Blockchain Partnership, all of which is overseen in Brussels by the EU. More locally, Gilbert and team are in consistent contact with the House of Lords within the UK, and advises the FCA in matters regarding cryptoassets.
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As recently seen in the SDK update, Overledger can serve as a key component of automatic compliance of governance bodies’ financial regulation, shown here by an Overledger instance reporting to the BoE’s Prudential Regulation Authority. Project BARAC, stewarded by University College London, is a project examining the impact Automatic Regulation as administered by Blockchain can have on the Federal Government. Most notably, the FCA and R3, the developers of Corda, are involved here. Gilbert’s recent engagements with the Federal Reserve Bank of Boston also seem to revolve around this very topic, with the Boston Fed pilot-testing a Supervisor Node for automatic regulatory compliance. While at P2PFISY 2019, it was noted by Gilbert that Raphael Auer’s “Regulation Automata” aligns very well with the vision of Overledger, with Paolo Tasca, former CSO of Quant, more recently co-hosting a recent blockchain panel with him. Raphael’s ideas will most likely be taken into consideration by the BIS, as they recently announced a trial of a 6 central banks collaboration centered around exploring CBDC, and are in the early stages of installing Innovation Hubs in Hong Kong, Switzerland, and Singapore.
Gilbert Verdian with Guy Dietrich (Managing Director at Rockefeller Capital who is also on the Board at Quant) attending a meeting with the Financial Conduct Authority

Overledger Network

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The Overledger Network is a network of networks, which allows enterprise and communities stakeholders to access and participate in a growing hyper-connected decentralised ecosystem. Enterprises, banks, central banks, trading venues, etc will be able to host their own secure dedicated gateways, enabling secure connectivity to permissioned networks, permissionless networks, ecosystems, consortia and other distributed technologies. Community members will also be able to run an Overledger gateway to further enhance the scalability, decentralisation and optimise network latency, providing enterprises, developers and users choice to use the closest gateway when accessing permissionless blockchains. The Overledger gateways will create a scalable p2p network that shares the transaction and volume between participants and chooses the closest or largest node to transact with.
As per the example use case in the recent update a Bank can run an Overledger Gateway to provide access to the various consortiums hosted on a variety of blockchains including Corda, Hyperledger Fabric and JP Morgan’s Quorum as well as access to the legacy / non-DLT platforms. Should they want to utilise a public blockchain as well in a hybrid scenario then they also have the option of using a Overledger Gateway hosted by a community member.
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The Overledger Gateways contain several layers which we will explore some of their features below:

Overledger Operating System

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Overledger allows connection to any blockchain / DAG as well as easily integrating with existing non-DLT environments. It does this without adding the overhead of yet another blockchain / consensus in the middle, ensuring that it’s scalable and doesn’t contain a single point of failure. Nor does it require the connected blockchains to fork their code to integrate and place restrictions on what can be implemented going forward. All of this is done in a secure, trustless manner where transactions are signed and encrypted client side so the contents can’t be viewed / modified as they pass through Overledger. It currently connects all of the leading permissioned and permissionless blockchains used by enterprises today. This article explains the differences between other interoperability solutions and the benefits of Quant’s approach

The Five Ingredients of Interoperability:

Recently there was an interoperability webinar with Fintech connect with speakers such as R3’s CTO Richard Gendal Brown, along with representatives from the Bank of England, Deutsche Boerse, Nasdaq, ArchaxEx and SwissRe. Richard Gendal Brown from R3 wrote about the Five key Ingredients of Interoperability:
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  1. INTEGRATE with existing business systems — Businesses aren’t going to replace their existing applications for new blockchain ones, they need to integrate with their existing systems.
  2. INITIATE Payments on existing rails or blockchain rails — Needs to be able to make a payment / settlement using a wide variety of existing payment rails (off chain) as well as blockchain rails, ensuring delivery vs payment can be achieved with certainty that they have happened.
  3. INTERCHAIN applications and smart contracts that can be deployed / executed across protocols — Enabling a solution built on Corda such as Marco Polo to easily connect to a solution on another platform such as Vakt on Ethereum or CargoSmart on Hyperledger Fabric etc
  4. INTRACHAIN applications that benefit from value add of same underlying protocol — What happens when networks such as Marco Polo and Contour both running on Corda want to interoperate and the additional value and benefit that can be achieved.
  5. INTERCHANGE applications to switch platforms — What happens if you want to interchange one platform for another. Can you achieve that holy grail of interoperability by being able to be completely agnostic to the underlying platform?
Overledger meets all of these key ingredients in performing interoperability. Overledger enables existing business systems to benefit from blockchain connectivity by adding as little as 3 lines of code to their existing applications. No need to completely rewrite / replace their existing systems and all done in the most common programming languages such as Java and JavaScript.
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At QuantX in December they announced Overledger Interchange which enables settlement on a variety of existing non-dlt payment rails such as Faster Payments, BACS, CHAPS, SEPA, SWIFT as well as on DLT payment rails such as with Central Bank Digital Currencies, Stablecoins and XRP. It also facilitates Cross Chain Atomic Swaps using Hash Time Locked Contracts ensuring Delivery vs Payment is achieved. Interchange is at the centre of the discussions Quant has had with traditional exchanges in capital markets and central banks and is a technology financial services have been missing and was built it address client needs.
Overledger enables interoperability within the same ecosystem such as Corda DAPP to another Corda DAPP etc as well as interoperability between any of the connected permissionless and permissioned blockchains.
Quants blockchain agnostic Operating System enables users to benefit from using the best features from different chains in combination and migrate between them, preventing Vendor or Tech Lock in without having to completely rewrite existing applications, achieving the holy grail of interoperability. It enables developers to quickly test a variety of connected blockchains in a sandbox environment to see which is best suited for their requirements, starting with just 3 lines of code.

Transactions Services Layer

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The Transaction Services layer handles more complex features of Overledger. Allowing for applications to request services such as cross-chain atomic swaps, treaty contracts (Multi Chain Smart Contracts as well as enabling smart contract functionality even on blockchains that don’t support smart contracts natively such as Bitcoin) and transaction brokering (using heuristic analysis to determine which method is the fastest / cheapest out of the various payment rails)

Financial Services Layer

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Financial services features can be called upon by participants and applications to use crosschain and cross-platform. Financial Services specific use cases can use the features in Overledger to operate across networks. This layer provides enhanced privacy and security to regulated entities and institutions who require additional controls to maintain compliance to regulation and security policy. The features of Zero-knowledge Proof and privacy can be mandated for all transactions.

Channels Layer

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Channels provide interoperability of services related to digital assets, payments and tokenisation. The Overledger Network allows for participants to transfer interoperate enterprise and institutional issued tokens and assets. Connect to many existing payment rails such as SWIFT, SEPA, Faster Payments etc.
Overledger Network — Network of Networks

Connecting Blockchain and Non-DLT Applications / Networks to Overledger

The connectors to Overledger which grant access to Overledger Network will be open source and soon be made available, allowing for anyone to create a connector and benefit from being part of the ecosystem. Currently the permissionless blockchain space is mostly speculation with little adoption, mainly due to issues that need to be resolved such as scalability, privacy and regulation with permissionless blockchains, however there are some extremely large Enterprises, Banks, Governments, even Central Banks getting heavily involved and going into production albeit mostly in the permissioned blockchain space where such issues are not a problem. Just as each Blockchain has its advantages and disadvantages, parts of Enterprise applications are better suited to Permissioned blockchains (such as more sensitive parts) and permissionless blockchains suited for a higher degree of immutability, thus a Hybrid model requiring interoperability between permissioned, permissionless as well as existing non-DLT applications is required arguably for many years ahead. Just as with cloud computing where everything didn’t suddenly just move up into the cloud, well over a decade later since the birth of the likes of Amazon AWS, hybrid is still very prevalent today with only recently the likes of central banks, banks, governments discussing moving more sensitive workloads to public clouds such as Amazon AWS, Microsoft Azure, Oracle Cloud etc.

SIA, Central Banks, Banks, Trading Venues

Quant Network partnered with SIA, a game changer for mass blockchain adoption by Financial Institutions. SIA is the leading financial network provider in Europe that connects over 570 Banks, Central Banks, Trading Venues (stock exchanges etc) to their infrastructure. They provide a dedicated private network / infrastructure for financial institutions. Every European financial institution will either connect via SIA, in partnership with Colt or via SWIFT (and in many cases they will have connectivity with both) in order to access the Eurosystem Single Market Infrastructure Gateway, granting access to all RTGS, Securities and Instant Payment transactions for Europe.
SIA have integrated Overledger into their private infrastructure covering Europe consisting of 570 supernodes called SIAChain which enables each bank, central Bank, trading venue etc to utilise Overledger for interoperability. Some of the largest deployments of blockchain are happening on SIAChain such as the Spunta project where the entire Italian Banking Sector will be using blockchain and due to go live next month. As well as the “Fideiussioni Digitali” initiative (Digital Sureties) to digitize the management of sureties using blockchain technology with the Central Bank of Italy involved.
Central Bank Digital Currencies are going to play a hugely significant role in the future and there is one central Bank currently testing Overledger and Quant are in discussions with 4 others.
Connecting your blockchain / legacy network to Overledger enables the possibility that it could be used by any of these connected Banks, Central Banks, Trading venues etc in their private network (obviously due to the amount of regulation and critical financial infrastructure the options are going to be limited on what they want to connect).
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Oracle

Quant are a Fintech Partner with Oracle, the 2nd largest software company in the world and Oracle are taking Quant’s tech to their clients directly. They have 480,000 clients globally and towards the end of last year Oracle invited Quant to attend Sibos (SWIFT) where they met existing financial services and banking clients and introduced to new ones. By connecting to Overledger this also enables your solution to potentially be used by those 480,000 of Oracle’s global clients.

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SIMBA Chain

SIMBA Chain is a cloud-based, smart-contract-as-a-service (SCaaS) platform, enabling users across a variety of skill sets to implement dapps (decentralized applications). The easy-to-use platform is tailored for users, developers, government, and enterprises to quickly deploy blockchain dapps for their enterprise. SIMBA Chain are developing on Quant’s Overledger Blockchain OS to allow them to deploy DAPPs across multiple connected blockchains.
SIMBA Chain have recently been awared a $9.5 million contract with the US Navy, they are also working with the US Air Force. They have a thriving ecosystem with over 1100 Organizations and 650+ Applications developed. Partners include Microsoft, Government Blockchain Association, Air Force Research Laboratory, Caterpillar, SAP and EY. Recently they also integrated Unity 3D plugin for Gaming to enable owning, storing, and managing all personal gaming assets across a variety of blockchains.
These are just a few of the companies that Quant have partnered with directly, but the ecosystem for Overledger Network is the Network of Networks. Every connected blockchain (Bitcoin, Ethereum, Ripple (XRPL), EOS, Stellar, IOTA, DAG, R3’s Corda, Hyperledger Fabric, JP Morgan’s Quorum and other Permissioned Variants of Ethereum) and their associated partners / applications built on them have the ability to connect and interoperate with the other blockchains connected as well as non-DLT networks such as existing payment rails like SWIFT, Faster Payments, SEPA etc. This Network of Network’s effects will grow exponentially as more and more join the ecosystem.

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Connecting the Internet directly to blockchain

Quant Network are also developing the ability to allow developers to build MAPPs that integrate directly with the internet as well as blockchain data. They will enable this via creating a new IP address for blockchains which they are calling Quant IP which will enable traffic to be routed from an IP connection from the Internet through Overledger to the connected blockchains.
Another Quant product called Seeq is a distributed search engine that is able to search and retrieve data from multiple blockchains and display them via html directly from the blockchain. More details will be released about Seeq later this year.
Connecting the Internet directly to blockchain will allow websites to be natively created and served directly from blockchains, without the need to have, run and maintain web servers, web services, SSL certificates etc and all running in a completely trusted, extremely resilient / tamperproof environment. The implications of this are enormous and more details will be released by the team later on this exciting prospect. By connecting your blockchain to Overledger you will also be able to benefit from this.

Join your favourite Blockchain project to the Overledger Network Ecosystem

Instead of the current mentality of having the main focus for many projects of listing on exchanges for vast sums of money, why not spend a little time (connectors can be created in as little as a week of development and don’t necessarily even need to be created by the team themselves) and make your blockchain / non-DLT application available to be used by all existing enterprises / members. Not only that but if you also run an Overledger Gateway connecting your blockchain node you also benefit from the transaction fees of the traffic going to it. The connectors are open source and completely free to connect and now with the standardisation of Objects in the recent SDK update the foundations are in place for the launch of Overledger Network with an ETA of Q2 2020. If you would like your favourite blockchain project to interoperate and be part of the ecosystem to further adoption then make the relevant people aware and keep an eye out for further details released in the future.

https://medium.com/@CryptoSeq/the-network-of-networks-scalable-interoperability-to-unleash-the-true-potential-of-blockchain-c54e7d373d2d

Thanks to community member Ghost of St. Miklos for contributing the section about regulation as well as Sonic for proofreading.
You can find more about Overledger Network as well as the token utility — here and community member David W. wrote an excellent article “A deeper look into the Quant Network Utility Token (QNT) valuation dynamics and fundamentals”
What is a blockchain operating system and what are the benefits? Introducing Overledger from Quant Network.
Wall Street 2.0: How Blockchain will revolutionise Wall Street and a closer look at Quant Network’s Partnership with AX Trading
Large Enterprise Adoption of Blockchain is happening, enabled by Quant Network’s Overledger
As well as an 8 Part Series taking an indepth look at Overledger starting with Part 1
submitted by xSeq22x to CryptoCurrency [link] [comments]

Hyperledger Fabric - Blockchain for the Enterprise How to build decentralized web applications, hyper-ledger, smart contracts and more using blockchain Das größte Blockchain Projekt! Was ist Hyperledger? Teil 1 R.I.P. Hyperledger  Blockchain Caffe Hyperledger Blockchain Future Project

Was versteht man unter Hyperledger. Hyperledger ist eine Plattform für Blockchain-Anwendungen auf Open-Source-Basis.Mit der Technologie lassen sich sogenannte Distributed Ledger auf Basis einer Blockchain erstellen, die den hohen Anforderungen von betrieblicher Nutzung gerecht werden. Das Hyperledger-Projekt ermöglicht den Unternehmen die Erstellung von eigenen Frameworks, die eine ... Blockchain for Dummies — From Bitcoin to Hyperledger. Diego Bascans. Follow . May 22, 2018 · 7 min read. Photo by Iker Urteaga on Unsplash What is a blockchain? Let’s first talk about of what ... So, naturally, I was pretty skeptical of bitcoin and the blockchain when I first heard about it. ... The advantages of an open source blockchain platform such as Hyperledger Fabric or Hyperledger Sawtooth, compared to a homegrown solution, are many: Most obviously, there is security and scalability of a developed solution. Then there is the support for the “unknown unknowns,” use cases you ... Hyperledger does not support Bitcoin or other cryptocurrencies. But the platform is excited about blockchain technology. The web site says that since the Web was not "technology promising wider and more fundamental revolution than the blockchain technology."Blockchain potential" is the construction of a new generation of transactional applications that establish relationships of trust ... Hyperledger also emerged as a leader in Asia, with China’s national blockchain infrastructure, Blockchain Services Network (BSN), a Chinese government initiative designed to support businesses within and outside of China, adopting its technology. Behlendorf confirmed, “BSN will support Hyperledger Fabric as a standard toolkit within the network.”

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Hyperledger Fabric - Blockchain for the Enterprise

The 7 steps of a transaction in a HyperLedger Fabric Blockchain as explained by Ernesto.Net. A couple of notes: Endorsement and Consensus policies are configurable. The video shows 51% for ... The next video is starting stop. Loading... Hallo zusammen, in diesem Video stelle ich euch Hyperledger vor. Viel Spaß! Telegram Gruppe (Blocktrainer): https://t.me/joinchat/HpIfGBI3tv0NlBe4OzRrkw Tw... 🔴 🕮 Bitcoin dalla Teoria alla Pratica : https: ... Deploy a blockchain web-app with Hyperledger Fabric 1.4 - Concepts & Code - Duration: 39:16. Horea Porutiu 11,537 views. 39:16 ... The Hyperledger Blockchain is a distributed ledger technology that underlies cryptocurrencies like Bitcoin and platforms like Ethereum. It provides a way to ...

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