What Algorithm Is Used For Bitcoin? CryptoCoins Info Club
What Algorithm Is Used For Bitcoin? CryptoCoins Info Club
Bitcoin Proof of Stake: A Peer-to-Peer Electronic Cash System
A (Short) Guide to Blockchain Consensus Protocols - CoinDesk
Cryptocurrency Consensus: How Blockchain Distributed ...
BitcoinPoS Review: A Solution to Bitcoin's Centralization ...
Masari: Simple Private Money
Masari (MSR) is a scalability-focused, untraceable, secure, and fungible cryptocurrency using the RingCT protocol. Masari is the first CryptoNote coin to develop uncle mining and a fully client side web wallet.
Ultimate glossary of crypto currency terms, acronyms and abbreviations
A common sentiment is brewing online; a shared desire for the internet that might have been. After decades of corporate encroachment, you don't need to be a power user to realize that something has gone very wrong. In the early days of the internet, the future was bright. In that future, when you sent an instant message, it traveled directly to the recipient. When you needed to pay a friend, you announced a transfer of value to their public key. When an app was missing a feature you wanted, you opened up the source code and implemented it. When you took a picture on your phone, it was immediately encrypted and backed up to storage that you controlled. In that future, people would laugh at the idea of having to authenticate themselves to some corporation before doing these things. What did we get instead? Rather than a network of human-sized communities, we have a handful of enormous commons, each controlled by a faceless corporate entity. Hey user, want to send a message? You can, but we'll store a copy of it indefinitely, unencrypted, for our preference-learning algorithms to pore over; how else could we slap targeted ads on every piece of content you see? Want to pay a friend? You can—in our Monopoly money. Want a new feature? Submit a request to our Support Center and we'll totally maybe think about it. Want to backup a photo? You can—inside our walled garden, which only we (and the NSA, of course) can access. Just be careful what you share, because merely locking you out of your account and deleting all your data is far from the worst thing we could do. You rationalize this: "MEGACORP would never do such a thing; it would be bad for business." But we all know, at some level, that this state of affairs, this inversion of power, is not merely "unfortunate" or "suboptimal" – No. It is degrading. Even if MEGACORP were purely benevolent, it is degrading that we must ask its permission to talk to our friends; that we must rely on it to safeguard our treasured memories; that our digital lives are completely beholden to those who seek only to extract value from us. At the root of this issue is the centralization of data. MEGACORP can surveil you—because your emails and video chats flow through their servers. And MEGACORP can control you—because they hold your data hostage. But centralization is a solution to a technical problem: How can we make the user's data accessible from anywhere in the world, on any device? For a long time, no alternative solution to this problem was forthcoming. Today, thanks to a confluence of established techniques and recent innovations, we have solved the accessibility problem without resorting to centralization. Hashing, encryption, and erasure encoding got us most of the way, but one barrier remained: incentives. How do you incentivize an anonymous stranger to store your data? Earlier protocols like BitTorrent worked around this limitation by relying on altruism, tit-for-tat requirements, or "points" – in other words, nothing you could pay your electric bill with. Finally, in 2009, a solution appeared: Bitcoin. Not long after, Sia was born. Cryptography has unleashed the latent power of the internet by enabling interactions between mutually-distrustful parties. Sia harnesses this power to turn the cloud storage market into a proper marketplace, where buyers and sellers can transact directly, with no intermediaries, anywhere in the world. No more silos or walled gardens: your data is encrypted, so it can't be spied on, and it's stored on many servers, so no single entity can hold it hostage. Thanks to projects like Sia, the internet is being re-decentralized. Sia began its life as a startup, which means it has always been subjected to two competing forces: the ideals of its founders, and the profit motive inherent to all businesses. Its founders have taken great pains to never compromise on the former, but this often threatened the company's financial viability. With the establishment of the Sia Foundation, this tension is resolved. The Foundation, freed of the obligation to generate profit, is a pure embodiment of the ideals from which Sia originally sprung. The goals and responsibilities of the Foundation are numerous: to maintain core Sia protocols and consensus code; to support developers building on top of Sia and its protocols; to promote Sia and facilitate partnerships in other spheres and communities; to ensure that users can easily acquire and safely store siacoins; to develop network scalability solutions; to implement hardforks and lead the community through them; and much more. In a broader sense, its mission is to commoditize data storage, making it cheap, ubiquitous, and accessible to all, without compromising privacy or performance. Sia is a perfect example of how we can achieve better living through cryptography. We now begin a new chapter in Sia's history. May our stewardship lead it into a bright future.
Today, we are proposing the creation of the Sia Foundation: a new non-profit entity that builds and supports distributed cloud storage infrastructure, with a specific focus on the Sia storage platform. What follows is an informal overview of the Sia Foundation, covering two major topics: how the Foundation will be funded, and what its funds will be used for.
The Sia Foundation will be structured as a non-profit entity incorporated in the United States, likely a 501(c)(3) organization or similar. The actions of the Foundation will be constrained by its charter, which formalizes the specific obligations and overall mission outlined in this document. The charter will be updated on an annual basis to reflect the current goals of the Sia community. The organization will be operated by a board of directors, initially comprising Luke Champine as President and Eddie Wang as Chairman. Luke Champine will be leaving his position at Nebulous to work at the Foundation full-time, and will seek to divest his shares of Nebulous stock along with other potential conflicts of interest. Neither Luke nor Eddie personally own any siafunds or significant quantities of siacoin.
The primary source of funding for the Foundation will come from a new block subsidy. Following a hardfork, 30 KS per block will be allocated to the "Foundation Fund," continuing in perpetuity. The existing 30 KS per block miner reward is not affected. Additionally, one year's worth of block subsidies (approximately 1.57 GS) will be allocated to the Fund immediately upon activation of the hardfork. As detailed below, the Foundation will provably burn any coins that it cannot meaningfully spend. As such, the 30 KS subsidy should be viewed as a maximum. This allows the Foundation to grow alongside Sia without requiring additional hardforks. The Foundation will not be funded to any degree by the possession or sale of siafunds. Siafunds were originally introduced as a means of incentivizing growth, and we still believe in their effectiveness: a siafund holder wants to increase the amount of storage on Sia as much as possible. While the Foundation obviously wants Sia to succeed, its driving force should be its charter. Deriving significant revenue from siafunds would jeopardize the Foundation's impartiality and focus. Ultimately, we want the Foundation to act in the best interests of Sia, not in growing its own budget.
The Foundation inherits a great number of responsibilities from Nebulous. Each quarter, the Foundation will publish the progress it has made over the past quarter, and list the responsibilities it intends to prioritize over the coming quarter. This will be accompanied by a financial report, detailing each area of expenditure over the past quarter, and forecasting expenditures for the coming quarter. Below, we summarize some of the myriad responsibilities towards which the Foundation is expected to allocate its resources.
Maintain and enhance core Sia software
Arguably, this is the most important responsibility of the Foundation. At the heart of Sia is its consensus algorithm: regardless of other differences, all Sia software must agree upon the content and rules of the blockchain. It is therefore crucial that the algorithm be stewarded by an entity that is accountable to the community, transparent in its decision-making, and has no profit motive or other conflicts of interest. Accordingly, Sia’s consensus functionality will no longer be directly maintained by Nebulous. Instead, the Foundation will release and maintain an implementation of a "minimal Sia full node," comprising the Sia consensus algorithm and P2P networking code. The source code will be available in a public repository, and signed binaries will be published for each release. Other parties may use this code to provide alternative full node software. For example, Nebulous may extend the minimal full node with wallet, renter, and host functionality. The source code of any such implementation may be submitted to the Foundation for review. If the code passes review, the Foundation will provide "endorsement signatures" for the commit hash used and for binaries compiled internally by the Foundation. Specifically, these signatures assert that the Foundation believes the software contains no consensus-breaking changes or other modifications to imported Foundation code. Endorsement signatures and Foundation-compiled binaries may be displayed and distributed by the receiving party, along with an appropriate disclaimer. A minimal full node is not terribly useful on its own; the wallet, renter, host, and other extensions are what make Sia a proper developer platform. Currently, the only implementations of these extensions are maintained by Nebulous. The Foundation will contract Nebulous to ensure that these extensions continue to receive updates and enhancements. Later on, the Foundation intends to develop its own implementations of these extensions and others. As with the minimal node software, these extensions will be open source and available in public repositories for use by any Sia node software. With the consensus code now managed by the Foundation, the task of implementing and orchestrating hardforks becomes its responsibility as well. When the Foundation determines that a hardfork is necessary (whether through internal discussion or via community petition), a formal proposal will be drafted and submitted for public review, during which arguments for and against the proposal may be submitted to a public repository. During this time, the hardfork code will be implemented, either by Foundation employees or by external contributors working closely with the Foundation. Once the implementation is finished, final arguments will be heard. The Foundation board will then vote whether to accept or reject the proposal, and announce their decision along with appropriate justification. Assuming the proposal was accepted, the Foundation will announce the block height at which the hardfork will activate, and will subsequently release source code and signed binaries that incorporate the hardfork code. Regardless of the Foundation's decision, it is the community that ultimately determines whether a fork is accepted or rejected – nothing can change that. Foundation node software will never automatically update, so all forks must be explicitly adopted by users. Furthermore, the Foundation will provide replay and wipeout protection for its hard forks, protecting other chains from unintended or malicious reorgs. Similarly, the Foundation will ensure that any file contracts formed prior to a fork activation will continue to be honored on both chains until they expire. Finally, the Foundation also intends to pursue scalability solutions for the Sia blockchain. In particular, work has already begun on an implementation of Utreexo, which will greatly reduce the space requirements of fully-validating nodes (allowing a full node to be run on a smartphone) while increasing throughput and decreasing initial sync time. A hardfork implementing Utreexo will be submitted to the community as per the process detailed above. As this is the most important responsibility of the Foundation, it will receive a significant portion of the Foundation’s budget, primarily in the form of developer salaries and contracting agreements.
Support community services
We intend to allocate 25% of the Foundation Fund towards the community. This allocation will be held and disbursed in the form of siacoins, and will pay for grants, bounties, hackathons, and other community-driven endeavours. Any community-run service, such as a Skynet portal, explorer or web wallet, may apply to have its costs covered by the Foundation. Upon approval, the Foundation will reimburse expenses incurred by the service, subject to the exact terms agreed to. The intent of these grants is not to provide a source of income, but rather to make such services "break even" for their operators, so that members of the community can enrich the Sia ecosystem without worrying about the impact on their own finances.
Ensure easy acquisition and storage of siacoins
Most users will acquire their siacoins via an exchange. The Foundation will provide support to Sia-compatible exchanges, and pursue relevant integrations at its discretion, such as Coinbase's new Rosetta standard. The Foundation may also release DEX software that enables trading cryptocurrencies without the need for a third party. (The Foundation itself will never operate as a money transmitter.) Increasingly, users are storing their cryptocurrency on hardware wallets. The Foundation will maintain the existing Ledger Nano S integration, and pursue further integrations at its discretion. Of course, all hardware wallets must be paired with software running on a computer or smartphone, so the Foundation will also develop and/or maintain client-side wallet software, including both full-node wallets and "lite" wallets. Community-operated wallet services, i.e. web wallets, may be funded via grants. Like core software maintenance, this responsibility will be funded in the form of developer salaries and contracting agreements.
Protect the ecosystem
When it comes to cryptocurrency security, patching software vulnerabilities is table stakes; there are significant legal and social threats that we must be mindful of as well. As such, the Foundation will earmark a portion of its fund to defend the community from legal action. The Foundation will also safeguard the network from 51% attacks and other threats to network security by implementing softforks and/or hardforks where necessary. The Foundation also intends to assist in the development of a new FOSS software license, and to solicit legal memos on various Sia-related matters, such as hosting in the United States and the EU. In a broader sense, the establishment of the Foundation makes the ecosystem more robust by transferring core development to a more neutral entity. Thanks to its funding structure, the Foundation will be immune to various forms of pressure that for-profit companies are susceptible to.
Drive adoption of Sia
Although the overriding goal of the Foundation is to make Sia the best platform it can be, all that work will be in vain if no one uses the platform. There are a number of ways the Foundation can promote Sia and get it into the hands of potential users and developers. In-person conferences are understandably far less popular now, but the Foundation can sponsor and/or participate in virtual conferences. (In-person conferences may be held in the future, permitting circumstances.) Similarly, the Foundation will provide prizes for hackathons, which may be organized by community members, Nebulous, or the Foundation itself. Lastly, partnerships with other companies in the cryptocurrency space—or the cloud storage space—are a great way to increase awareness of Sia. To handle these responsibilities, one of the early priorities of the Foundation will be to hire a marketing director.
The Foundation Fund will be controlled by a multisig address. Each member of the Foundation's board will control one of the signing keys, with the signature threshold to be determined once the final composition of the board is known. (This threshold may also be increased or decreased if the number of board members changes.) Additionally, one timelocked signing key will be controlled by David Vorick. This key will act as a “dead man’s switch,” to be used in the event of an emergency that prevents Foundation board members from reaching the signature threshold. The timelock ensures that this key cannot be used unless the Foundation fails to sign a transaction for several months. On the 1st of each month, the Foundation will use its keys to transfer all siacoins in the Fund to two new addresses. The first address will be controlled by a high-security hot wallet, and will receive approximately one month's worth of Foundation expenditures. The second address, receiving the remaining siacoins, will be a modified version of the source address: specifically, it will increase the timelock on David Vorick's signing key by one month. Any other changes to the set of signing keys, such as the arrival or departure of board members, will be incorporated into this address as well. The Foundation Fund is allocated in SC, but many of the Foundation's expenditures must be paid in USD or other fiat currency. Accordingly, the Foundation will convert, at its discretion, a portion of its monthly withdrawals to fiat currency. We expect this conversion to be primarily facilitated by private "OTC" sales to accredited investors. The Foundation currently has no plans to speculate in cryptocurrency or other assets. Finally, it is important that the Foundation adds value to the Sia platform well in excess of the inflation introduced by the block subsidy. For this reason, the Foundation intends to provably burn, on a quarterly basis, any coins that it cannot allocate towards any justifiable expense. In other words, coins will be burned whenever doing so provides greater value to the platform than any other use. Furthermore, the Foundation will cap its SC treasury at 5% of the total supply, and will cap its USD treasury at 4 years’ worth of predicted expenses. Addendum: Hardfork Timeline We would like to see this proposal finalized and accepted by the community no later than September 30th. A new version of siad, implementing the hardfork, will be released no later than October 15th. The hardfork will activate at block 293220, which is expected to occur around 12pm EST on January 1st, 2021.
Addendum: Inflation specifics The total supply of siacoins as of January 1st, 2021 will be approximately 45.243 GS. The initial subsidy of 1.57 GS thus increases the supply by 3.47%, and the total annual inflation in 2021 will be at most 10.4% (if zero coins are burned). In 2022, total annual inflation will be at most 6.28%, and will steadily decrease in subsequent years.
We see the establishment of the Foundation as an important step in the maturation of the Sia project. It provides the ecosystem with a sustainable source of funding that can be exclusively directed towards achieving Sia's ambitious goals. Compared to other projects with far deeper pockets, Sia has always punched above its weight; once we're on equal footing, there's no telling what we'll be able to achieve. Nevertheless, we do not propose this change lightly, and have taken pains to ensure that the Foundation will act in accordance with the ideals that this community shares. It will operate transparently, keep inflation to a minimum, and respect the user's fundamental role in decentralized systems. We hope that everyone in the community will consider this proposal carefully, and look forward to a productive discussion.
In today's world with information being pushed from all sides, people's attention span in online space decreased to minutes, sometimes even just seconds. Providing the right amount information of information with combination of gamification and/or network effects can raise attention of people with goal to get the desired information across. We believe that Decred team is building incredible technology, but due to increasingly competitive cryptocurrency market with millions of USD thrown into marketing, Decred has been shadowed in last period. In 2017, the ICO craze took majority of consumer attention and in 2020 is the year where DeFi with Yield Farming and [increasingly] governance tokens are taking the front pages of crypto news outlets. We believe that we need to find a scalable approach how to onboard new users to Decred community by applying proven strategies to find which one will yield scalable results.
We built a new website https://withDecred.org with one single goal - to provide an onboarding portal in a form of series of articles in a structured "funnel". We wrote 4 articles about most important aspects of Decred. These articles are organized into a sequence - afunnel with one specific goal → make a person purchase a few $DCR. The content structure
Staking & Governance
What's next (DEX, LN, private staking, ..)
How to get $DCR (not an article, rather a "call-to-action" page)
While working on the content, we worked with a "Target Persona" - a person somewhat familiar with crypto market, at least familiar with Bitcoin. We used this approach to write a content "shallow" enough for users to understand terminology but "deep" enough to understand Decred strengths. The content in the shape how it's written may not be suitable for everybody and will not make all the people purchase $DCR. It's the 1st iteration (1st version). We will work on improving the content to increase conversions - by measuring if people read the content, how they interact with the content and if they read through the whole funnel. Based on this data, we can objectively asses if the content does what was intended. We will follow a simple, but important strategy:
Write content based on assumptions
Publish, bring attention of users
Measure data for certain period
Evaluate results, identify weak spots
Adjust assumptions → back to Step 1
Proposal is coming later today. From now on, it is important for us to get feedback from people who are new to Decred - newcomers. We need to know how they "feel" after reading this information, which parts are good, which part are bad or confusing. --- Last point (and I can't stress this enough): Decred has already amazing pieces of content, eg. u/exitus'es videos, Ammarooni's articles, u/Checkmatey's and u/permabullnino's on-chain research resources, etc.. All of us can and should interact with them, like them, add comment on Youtube, clap 50x on Medium, share with his/her network. If every one of us doesn't like, comment & share every good piece of content, the algorithms in Youtube, Twitter, Medium will never push the content to many people. If we don't want to pay ads, we have to be the evangelists, the PR team, the spoke person of Decred. List of content is also here: https://decredpower.com/
Summary: Everyone knows that when you give your assets to someone else, they always keep them safe. If this is true for individuals, it is certainly true for businesses. Custodians always tell the truth and manage funds properly. They won't have any interest in taking the assets as an exchange operator would. Auditors tell the truth and can't be misled. That's because organizations that are regulated are incapable of lying and don't make mistakes. First, some background. Here is a summary of how custodians make us more secure: Previously, we might give Alice our crypto assets to hold. There were risks:
Alice might take the assets and disappear.
Alice might spend the assets and pretend that she still has them (fractional model).
Alice might store the assets insecurely and they'll get stolen.
Alice might give the assets to someone else by mistake or by force.
Alice might lose access to the assets.
But "no worries", Alice has a custodian named Bob. Bob is dressed in a nice suit. He knows some politicians. And he drives a Porsche. "So you have nothing to worry about!". And look at all the benefits we get:
Alice can't take the assets and disappear (unless she asks Bob or never gives them to Bob).
Alice can't spend the assets and pretend that she still has them. (Unless she didn't give them to Bob or asks him for them.)
Alice can't store the assets insecurely so they get stolen. (After all - she doesn't have any control over the withdrawal process from any of Bob's systems, right?)
Alice can't give the assets to someone else by mistake or by force. (Bob will stop her, right Bob?)
Alice can't lose access to the funds. (She'll always be present, sane, and remember all secrets, right?)
See - all problems are solved! All we have to worry about now is:
Bob might take the assets and disappear.
Bob might spend the assets and pretend that he still has them (fractional model).
Bob might store the assets insecurely and they'll get stolen.
Bob might give the assets to someone else by mistake or by force.
Bob might lose access to the assets.
It's pretty simple. Before we had to trust Alice. Now we only have to trust Alice, Bob, and all the ways in which they communicate. Just think of how much more secure we are! "On top of that", Bob assures us, "we're using a special wallet structure". Bob shows Alice a diagram. "We've broken the balance up and store it in lots of smaller wallets. That way", he assures her, "a thief can't take it all at once". And he points to a historic case where a large sum was taken "because it was stored in a single wallet... how stupid". "Very early on, we used to have all the crypto in one wallet", he said, "and then one Christmas a hacker came and took it all. We call him the Grinch. Now we individually wrap each crypto and stick it under a binary search tree. The Grinch has never been back since." "As well", Bob continues, "even if someone were to get in, we've got insurance. It covers all thefts and even coercion, collusion, and misplaced keys - only subject to the policy terms and conditions." And with that, he pulls out a phone-book sized contract and slams it on the desk with a thud. "Yep", he continues, "we're paying top dollar for one of the best policies in the country!" "Can I read it?' Alice asks. "Sure," Bob says, "just as soon as our legal team is done with it. They're almost through the first chapter." He pauses, then continues. "And can you believe that sales guy Mike? He has the same year Porsche as me. I mean, what are the odds?" "Do you use multi-sig?", Alice asks. "Absolutely!" Bob replies. "All our engineers are fully trained in multi-sig. Whenever we want to set up a new wallet, we generate 2 separate keys in an air-gapped process and store them in this proprietary system here. Look, it even requires the biometric signature from one of our team members to initiate any withdrawal." He demonstrates by pressing his thumb into the display. "We use a third-party cloud validation API to match the thumbprint and authorize each withdrawal. The keys are also backed up daily to an off-site third-party." "Wow that's really impressive," Alice says, "but what if we need access for a withdrawal outside of office hours?" "Well that's no issue", Bob says, "just send us an email, call, or text message and we always have someone on staff to help out. Just another part of our strong commitment to all our customers!" "What about Proof of Reserve?", Alice asks. "Of course", Bob replies, "though rather than publish any blockchain addresses or signed transaction, for privacy we just do a SHA256 refactoring of the inverse hash modulus for each UTXO nonce and combine the smart contract coefficient consensus in our hyperledger lightning node. But it's really simple to use." He pushes a button and a large green checkmark appears on a screen. "See - the algorithm ran through and reserves are proven." "Wow", Alice says, "you really know your stuff! And that is easy to use! What about fiat balances?" "Yeah, we have an auditor too", Bob replies, "Been using him for a long time so we have quite a strong relationship going! We have special books we give him every year and he's very efficient! Checks the fiat, crypto, and everything all at once!" "We used to have a nice offline multi-sig setup we've been using without issue for the past 5 years, but I think we'll move all our funds over to your facility," Alice says. "Awesome", Bob replies, "Thanks so much! This is perfect timing too - my Porsche got a dent on it this morning. We have the paperwork right over here." "Great!", Alice replies. And with that, Alice gets out her pen and Bob gets the contract. "Don't worry", he says, "you can take your crypto-assets back anytime you like - just subject to our cancellation policy. Our annual management fees are also super low and we don't adjust them often". How many holes have to exist for your funds to get stolen? Just one. Why are we taking a powerful offline multi-sig setup, widely used globally in hundreds of different/lacking regulatory environments with 0 breaches to date, and circumventing it by a demonstrably weak third party layer? And paying a great expense to do so? If you go through the list of breaches in the past 2 years to highly credible organizations, you go through the list of major corporate frauds (only the ones we know about), you go through the list of all the times platforms have lost funds, you go through the list of times and ways that people have lost their crypto from identity theft, hot wallet exploits, extortion, etc... and then you go through this custodian with a fine-tooth comb and truly believe they have value to add far beyond what you could, sticking your funds in a wallet (or set of wallets) they control exclusively is the absolute worst possible way to take advantage of that security. The best way to add security for crypto-assets is to make a stronger multi-sig. With one custodian, what you are doing is giving them your cryptocurrency and hoping they're honest, competent, and flawlessly secure. It's no different than storing it on a really secure exchange. Maybe the insurance will cover you. Didn't work for Bitpay in 2015. Didn't work for Yapizon in 2017. Insurance has never paid a claim in the entire history of cryptocurrency. But maybe you'll get lucky. Maybe your exact scenario will buck the trend and be what they're willing to cover. After the large deductible and hopefully without a long and expensive court battle. And you want to advertise this increase in risk, the lapse of judgement, an accident waiting to happen, as though it's some kind of benefit to customers ("Free institutional-grade storage for your digital assets.")? And then some people are writing to the OSC that custodians should be mandatory for all funds on every exchange platform? That this somehow will make Canadians as a whole more secure or better protected compared with standard air-gapped multi-sig? On what planet? Most of the problems in Canada stemmed from one thing - a lack of transparency. If Canadians had known what a joke Quadriga was - it wouldn't have grown to lose $400m from hard-working Canadians from coast to coast to coast. And Gerald Cotten would be in jail, not wherever he is now (at best, rotting peacefully). EZ-BTC and mister Dave Smilie would have been a tiny little scam to his friends, not a multi-million dollar fraud. Einstein would have got their act together or been shut down BEFORE losing millions and millions more in people's funds generously donated to criminals. MapleChange wouldn't have even been a thing. And maybe we'd know a little more about CoinTradeNewNote - like how much was lost in there. Almost all of the major losses with cryptocurrency exchanges involve deception with unbacked funds. So it's great to see transparency reports from BitBuy and ShakePay where someone independently verified the backing. The only thing we don't have is:
ANY CERTAINTY BALANCES WEREN'T EXCLUDED. Quadriga's largest account was $70m. 80% of funds are in 20% of accounts (Pareto principle). All it takes is excluding a few really large accounts - and nobody's the wiser. A fractional platform can easily pass any audit this way.
ANY VISIBILITY WHATSOEVER INTO THE CUSTODIANS. BitBuy put out their report before moving all the funds to their custodian and ShakePay apparently can't even tell us who the custodian is. That's pretty important considering that basically all of the funds are now stored there.
ANY IDEA ABOUT THE OTHER EXCHANGES. In order for this to be effective, it has to be the norm. It needs to be "unusual" not to know. If obscurity is the norm, then it's super easy for people like Gerald Cotten and Dave Smilie to blend right in.
It's not complicated to validate cryptocurrency assets. They need to exist, they need to be spendable, and they need to cover the total balances. There are plenty of credible people and firms across the country that have the capacity to reasonably perform this validation. Having more frequent checks by different, independent, parties who publish transparent reports is far more valuable than an annual check by a single "more credible/official" party who does the exact same basic checks and may or may not publish anything. Here's an example set of requirements that could be mandated:
First report within 1 month of launching, another within 3 months, and further reports at minimum every 6 months thereafter.
No auditor can be repeated within a 12 month period.
All reports must be public, identifying the auditor and the full methodology used.
All auditors must be independent of the firm being audited with no conflict of interest.
Reports must include the percentage of each asset backed, and how it's backed.
The auditor publishes a hash list, which lists a hash of each customer's information and balances that were included. Hash is one-way encryption so privacy is fully preserved. Every customer can use this to have 100% confidence they were included.
If we want more extensive requirements on audits, these should scale upward based on the total assets at risk on the platform, and whether the platform has loaned their assets out.
There are ways to structure audits such that neither crypto assets nor customer information are ever put at risk, and both can still be properly validated and publicly verifiable. There are also ways to structure audits such that they are completely reasonable for small platforms and don't inhibit innovation in any way. By making the process as reasonable as possible, we can completely eliminate any reason/excuse that an honest platform would have for not being audited. That is arguable far more important than any incremental improvement we might get from mandating "the best of the best" accountants. Right now we have nothing mandated and tons of Canadians using offshore exchanges with no oversight whatsoever. Transparency does not prove crypto assets are safe. CoinTradeNewNote, Flexcoin ($600k), and Canadian Bitcoins ($100k) are examples where crypto-assets were breached from platforms in Canada. All of them were online wallets and used no multi-sig as far as any records show. This is consistent with what we see globally - air-gapped multi-sig wallets have an impeccable record, while other schemes tend to suffer breach after breach. We don't actually know how much CoinTrader lost because there was no visibility. Rather than publishing details of what happened, the co-founder of CoinTrader silently moved on to found another platform - the "most trusted way to buy and sell crypto" - a site that has no information whatsoever (that I could find) on the storage practices and a FAQ advising that “[t]rading cryptocurrency is completely safe” and that having your own wallet is “entirely up to you! You can certainly keep cryptocurrency, or fiat, or both, on the app.” Doesn't sound like much was learned here, which is really sad to see. It's not that complicated or unreasonable to set up a proper hardware wallet. Multi-sig can be learned in a single course. Something the equivalent complexity of a driver's license test could prevent all the cold storage exploits we've seen to date - even globally. Platform operators have a key advantage in detecting and preventing fraud - they know their customers far better than any custodian ever would. The best job that custodians can do is to find high integrity individuals and train them to form even better wallet signatories. Rather than mandating that all platforms expose themselves to arbitrary third party risks, regulations should center around ensuring that all signatories are background-checked, properly trained, and using proper procedures. We also need to make sure that signatories are empowered with rights and responsibilities to reject and report fraud. They need to know that they can safely challenge and delay a transaction - even if it turns out they made a mistake. We need to have an environment where mistakes are brought to the surface and dealt with. Not one where firms and people feel the need to hide what happened. In addition to a knowledge-based test, an auditor can privately interview each signatory to make sure they're not in coercive situations, and we should make sure they can freely and anonymously report any issues without threat of retaliation. A proper multi-sig has each signature held by a separate person and is governed by policies and mutual decisions instead of a hierarchy. It includes at least one redundant signature. For best results, 3of4, 3of5, 3of6, 4of5, 4of6, 4of7, 5of6, or 5of7. History has demonstrated over and over again the risk of hot wallets even to highly credible organizations. Nonetheless, many platforms have hot wallets for convenience. While such losses are generally compensated by platforms without issue (for example Poloniex, Bitstamp, Bitfinex, Gatecoin, Coincheck, Bithumb, Zaif, CoinBene, Binance, Bitrue, Bitpoint, Upbit, VinDAX, and now KuCoin), the public tends to focus more on cases that didn't end well. Regardless of what systems are employed, there is always some level of risk. For that reason, most members of the public would prefer to see third party insurance. Rather than trying to convince third party profit-seekers to provide comprehensive insurance and then relying on an expensive and slow legal system to enforce against whatever legal loopholes they manage to find each and every time something goes wrong, insurance could be run through multiple exchange operators and regulators, with the shared interest of having a reputable industry, keeping costs down, and taking care of Canadians. For example, a 4 of 7 multi-sig insurance fund held between 5 independent exchange operators and 2 regulatory bodies. All Canadian exchanges could pay premiums at a set rate based on their needed coverage, with a higher price paid for hot wallet coverage (anything not an air-gapped multi-sig cold wallet). Such a model would be much cheaper to manage, offer better coverage, and be much more reliable to payout when needed. The kind of coverage you could have under this model is unheard of. You could even create something like the CDIC to protect Canadians who get their trading accounts hacked if they can sufficiently prove the loss is legitimate. In cases of fraud, gross negligence, or insolvency, the fund can be used to pay affected users directly (utilizing the last transparent balance report in the worst case), something which private insurance would never touch. While it's recommended to have official policies for coverage, a model where members vote would fully cover edge cases. (Could be similar to the Supreme Court where justices vote based on case law.) Such a model could fully protect all Canadians across all platforms. You can have a fiat coverage governed by legal agreements, and crypto-asset coverage governed by both multi-sig and legal agreements. It could be practical, affordable, and inclusive. Now, we are at a crossroads. We can happily give up our freedom, our innovation, and our money. We can pay hefty expenses to auditors, lawyers, and regulators year after year (and make no mistake - this cost will grow to many millions or even billions as the industry grows - and it will be borne by all Canadians on every platform because platforms are not going to eat up these costs at a loss). We can make it nearly impossible for any new platform to enter the marketplace, forcing Canadians to use the same stagnant platforms year after year. We can centralize and consolidate the entire industry into 2 or 3 big players and have everyone else fail (possibly to heavy losses of users of those platforms). And when a flawed security model doesn't work and gets breached, we can make it even more complicated with even more people in suits making big money doing the job that blockchain was supposed to do in the first place. We can build a system which is so intertwined and dependent on big government, traditional finance, and central bankers that it's future depends entirely on that of the fiat system, of fractional banking, and of government bail-outs. If we choose this path, as history has shown us over and over again, we can not go back, save for revolution. Our children and grandchildren will still be paying the consequences of what we decided today. Or, we can find solutions that work. We can maintain an open and innovative environment while making the adjustments we need to make to fully protect Canadian investors and cryptocurrency users, giving easy and affordable access to cryptocurrency for all Canadians on the platform of their choice, and creating an environment in which entrepreneurs and problem solvers can bring those solutions forward easily. None of the above precludes innovation in any way, or adds any unreasonable cost - and these three policies would demonstrably eliminate or resolve all 109 historic cases as studied here - that's every single case researched so far going back to 2011. It includes every loss that was studied so far not just in Canada but globally as well. Unfortunately, finding answers is the least challenging part. Far more challenging is to get platform operators and regulators to agree on anything. My last post got no response whatsoever, and while the OSC has told me they're happy for industry feedback, I believe my opinion alone is fairly meaningless. This takes the whole community working together to solve. So please let me know your thoughts. Please take the time to upvote and share this with people. Please - let's get this solved and not leave it up to other people to do. Facts/background/sources (skip if you like):
The inspiration for the paragraph about splitting wallets was an actual quote from a Canadian company providing custodial services in response to the OSC consultation paper: "We believe that it will be in the in best interests of investors to prohibit pooled crypto assets or ‘floats’. Most Platforms pool assets, citing reasons of practicality and expense. The recent hack of the world’s largest Platform – Binance – demonstrates the vulnerability of participants’ assets when such concessions are made. In this instance, the Platform’s entire hot wallet of Bitcoins, worth over $40 million, was stolen, facilitated in part by the pooling of client crypto assets." "the maintenance of participants (and Platform) crypto assets across multiple wallets distributes the related risk and responsibility of security - reducing the amount of insurance coverage required and making insurance coverage more readily obtainable". For the record, their reply also said nothing whatsoever about multi-sig or offline storage.
In addition to the fact that the $40m hack represented only one "hot wallet" of Binance, and they actually had the vast majority of assets in other wallets (including mostly cold wallets), multiple real cases have clearly demonstrated that risk is still present with multiple wallets. Bitfinex, VinDAX, Bithumb, Altsbit, BitPoint, Cryptopia, and just recently KuCoin all had multiple wallets breached all at the same time, and may represent a significantly larger impact on customers than the Binance breach which was fully covered by Binance. To represent that simply having multiple separate wallets under the same security scheme is a comprehensive way to reduce risk is just not true.
Private insurance has historically never covered a single loss in the cryptocurrency space (at least, not one that I was able to find), and there are notable cases where massive losses were not covered by insurance. Bitpay in 2015 and Yapizon in 2017 both had insurance policies that didn't pay out during the breach, even after a lengthly court process. The same insurance that ShakePay is presently using (and announced to much fanfare) was describe by their CEO himself as covering “physical theft of the media where the private keys are held,” which is something that has never historically happened. As was said with regard to the same policy in 2018 - “I don’t find it surprising that Lloyd’s is in this space,” said Johnson, adding that to his mind the challenge for everybody is figuring out how to structure these policies so that they are actually protective. “You can create an insurance policy that protects no one – you know there are so many caveats to the policy that it’s not super protective.”
The most profitable policy for a private insurance company is one with the most expensive premiums that they never have to pay a claim on. They have no inherent incentive to take care of people who lost funds. It's "cheaper" to take the reputational hit and fight the claim in court. The more money at stake, the more the insurance provider is incentivized to avoid payout. They're not going to insure the assets unless they have reasonable certainty to make a profit by doing so, and they're not going to pay out a massive sum unless it's legally forced. Private insurance is always structured to be maximally profitable to the insurance provider.
The circumvention of multi-sig was a key factor in the massive Bitfinex hack of over $60m of bitcoin, which today still sits being slowly used and is worth over $3b. While Bitfinex used a qualified custodian Bitgo, which was and still is active and one of the industry leaders of custodians, and they set up 2 of 3 multi-sig wallets, the entire system was routed through Bitfinex, such that Bitfinex customers could initiate the withdrawals in a "hot" fashion. This feature was also a hit with the hacker. The multi-sig was fully circumvented.
Bitpay in 2015 was another example of a breach that stole 5,000 bitcoins. This happened not through the exploit of any system in Bitpay, but because the CEO of a company they worked with got their computer hacked and the hackers were able to request multiple bitcoin purchases, which Bitpay honoured because they came from the customer's computer legitimately. Impersonation is a very common tactic used by fraudsters, and methods get more extreme all the time.
A notable case in Canada was the Canadian Bitcoins exploit. Funds were stored on a server in a Rogers Data Center, and the attendee was successfully convinced to reboot the server "in safe mode" with a simple phone call, thus bypassing the extensive security and enabling the theft.
The very nature of custodians circumvents multi-sig. This is because custodians are not just having to secure the assets against some sort of physical breach but against any form of social engineering, modification of orders, fraudulent withdrawal attempts, etc... If the security practices of signatories in a multi-sig arrangement are such that the breach risk of one signatory is 1 in 100, the requirement of 3 independent signatures makes the risk of theft 1 in 1,000,000. Since hackers tend to exploit the weakest link, a comparable custodian has to make the entry and exit points of their platform 10,000 times more secure than one of those signatories to provide equivalent protection. And if the signatories beef up their security by only 10x, the risk is now 1 in 1,000,000,000. The custodian has to be 1,000,000 times more secure. The larger and more complex a system is, the more potential vulnerabilities exist in it, and the fewer people can understand how the system works when performing upgrades. Even if a system is completely secure today, one has to also consider how that system might evolve over time or work with different members.
By contrast, offline multi-signature solutions have an extremely solid record, and in the entire history of cryptocurrency exchange incidents which I've studied (listed here), there has only been one incident (796 exchange in 2015) involving an offline multi-signature wallet. It happened because the customer's bitcoin address was modified by hackers, and the amount that was stolen ($230k) was immediately covered by the exchange operators. Basically, the platform operators were tricked into sending a legitimate withdrawal request to the wrong address because hackers exploited their platform to change that address. Such an issue would not be prevented in any way by the use of a custodian, as that custodian has no oversight whatsoever to the exchange platform. It's practical for all exchange operators to test large withdrawal transactions as a general policy, regardless of what model is used, and general best practice is to diagnose and fix such an exploit as soon as it occurs.
False promises on the backing of funds played a huge role in the downfall of Quadriga, and it's been exposed over and over again (MyCoin, PlusToken, Bitsane, Bitmarket, EZBTC, IDAX). Even today, customers have extremely limited certainty on whether their funds in exchanges are actually being backed or how they're being backed. While this issue is not unique to cryptocurrency exchanges, the complexity of the technology and the lack of any regulation or standards makes problems more widespread, and there is no "central bank" to come to the rescue as in the 2008 financial crisis or during the great depression when "9,000 banks failed".
In addition to fraudulent operations, the industry is full of cases where operators have suffered breaches and not reported them. Most recently, Einstein was the largest case in Canada, where ongoing breaches and fraud were perpetrated against the platform for multiple years and nobody found out until the platform collapsed completely. While fraud and breaches suck to deal with, they suck even more when not dealt with. Lack of visibility played a role in the largest downfalls of Mt. Gox, Cryptsy, and Bitgrail. In some cases, platforms are alleged to have suffered a hack and keep operating without admitting it at all, such as CoinBene.
It surprises some to learn that a cryptographic solution has already existed since 2013, and gained widespread support in 2014 after Mt. Gox. Proof of Reserves is a full cryptographic proof that allows any customer using an exchange to have complete certainty that their crypto-assets are fully backed by the platform in real-time. This is accomplished by proving that assets exist on the blockchain, are spendable, and fully cover customer deposits. It does not prove safety of assets or backing of fiat assets.
If we didn't care about privacy at all, a platform could publish their wallet addresses, sign a partial transaction, and put the full list of customer information and balances out publicly. Customers can each check that they are on the list, that the balances are accurate, that the total adds up, and that it's backed and spendable on the blockchain. Platforms who exclude any customer take a risk because that customer can easily check and see they were excluded. So together with all customers checking, this forms a full proof of backing of all crypto assets.
However, obviously customers care about their private information being published. Therefore, a hash of the information can be provided instead. Hash is one-way encryption. The hash allows the customer to validate inclusion (by hashing their own known information), while anyone looking at the list of hashes cannot determine the private information of any other user. All other parts of the scheme remain fully intact. A model like this is in use on the exchange CoinFloor in the UK.
A Merkle tree can provide even greater privacy. Instead of a list of balances, the balances are arranged into a binary tree. A customer starts from their node, and works their way to the top of the tree. For example, they know they have 5 BTC, they plus 1 other customer hold 7 BTC, they plus 2-3 other customers hold 17 BTC, etc... until they reach the root where all the BTC are represented. Thus, there is no way to find the balances of other individual customers aside from one unidentified customer in this case.
Proposals such as this had the backing of leaders in the community including Nic Carter, Greg Maxwell, and Zak Wilcox. Substantial and significant effort started back in 2013, with massive popularity in 2014. But what became of that effort? Very little. Exchange operators continue to refuse to give visibility. Despite the fact this information can often be obtained through trivial blockchain analysis, no Canadian platform has ever provided any wallet addresses publicly. As described by the CEO of Newton "For us to implement some kind of realtime Proof of Reserves solution, which I'm not opposed to, it would have to ... Preserve our users' privacy, as well as our own. Some kind of zero-knowledge proof". Kraken describes here in more detail why they haven't implemented such a scheme. According to professor Eli Ben-Sasson, when he spoke with exchanges, none were interested in implementing Proof of Reserves.
And yet, Kraken's places their reasoning on a page called "Proof of Reserves". More recently, both BitBuy and ShakePay have released reports titled "Proof of Reserves and Security Audit". Both reports contain disclaimers against being audits. Both reports trust the customer list provided by the platform, leaving the open possibility that multiple large accounts could have been excluded from the process. Proof of Reserves is a blockchain validation where customers see the wallets on the blockchain. The report from Kraken is 5 years old, but they leave it described as though it was just done a few weeks ago. And look at what they expect customers to do for validation. When firms represent something being "Proof of Reserve" when it's not, this is like a farmer growing fruit with pesticides and selling it in a farmers market as organic produce - except that these are people's hard-earned life savings at risk here. Platforms are misrepresenting the level of visibility in place and deceiving the public by their misuse of this term. They haven't proven anything.
Fraud isn't a problem that is unique to cryptocurrency. Fraud happens all the time. Enron, WorldCom, Nortel, Bear Stearns, Wells Fargo, Moser Baer, Wirecard, Bre-X, and Nicola are just some of the cases where frauds became large enough to become a big deal (and there are so many countless others). These all happened on 100% reversible assets despite regulations being in place. In many of these cases, the problems happened due to the over-complexity of the financial instruments. For example, Enron had "complex financial statements [which] were confusing to shareholders and analysts", creating "off-balance-sheet vehicles, complex financing structures, and deals so bewildering that few people could understand them". In cryptocurrency, we are often combining complex financial products with complex technologies and verification processes. We are naïve if we think problems like this won't happen. It is awkward and uncomfortable for many people to admit that they don't know how something works. If we want "money of the people" to work, the solutions have to be simple enough that "the people" can understand them, not so confusing that financial professionals and technology experts struggle to use or understand them.
For those who question the extent to which an organization can fool their way into a security consultancy role, HB Gary should be a great example to look at. Prior to trying to out anonymous, HB Gary was being actively hired by multiple US government agencies and others in the private sector (with glowing testimonials). The published articles and hosted professional security conferences. One should also look at this list of data breaches from the past 2 years. Many of them are large corporations, government entities, and technology companies. These are the ones we know about. Undoubtedly, there are many more that we do not know about. If HB Gary hadn't been "outted" by anonymous, would we have known they were insecure? If the same breach had happened outside of the public spotlight, would it even have been reported? Or would HB Gary have just deleted the Twitter posts, brought their site back up, done a couple patches, and kept on operating as though nothing had happened?
In the case of Quadriga, the facts are clear. Despite past experience with platforms such as MapleChange in Canada and others around the world, no guidance or even the most basic of a framework was put in place by regulators. By not clarifying any sort of legal framework, regulators enabled a situation where a platform could be run by former criminal Mike Dhanini/Omar Patryn, and where funds could be held fully unchecked by one person. At the same time, the lack of regulation deterred legitimate entities from running competing platforms and Quadriga was granted a money services business license for multiple years of operation, which gave the firm the appearance of legitimacy. Regulators did little to protect Canadians despite Quadriga failing to file taxes from 2016 onward. The entire administrative team had resigned and this was public knowledge. Many people had suspicions of what was going on, including Ryan Mueller, who forwarded complaints to the authorities. These were ignored, giving Gerald Cotten the opportunity to escape without justice.
There are multiple issues with the SOC II model including the prohibitive cost (you have to find a third party accounting firm and the prices are not even listed publicly on any sites), the requirement of operating for a year (impossible for new platforms), and lack of any public visibility (SOC II are private reports that aren't shared outside the people in suits).
Securities frameworks are expensive. Sarbanes-Oxley is estimated to cost $5.1 million USD/yr for the average Fortune 500 company in the United States. Since "Fortune 500" represents the top 500 companies, that means well over $2.55 billion USD (~$3.4 billion CAD) is going to people in suits. Isn't the problem of trust and verification the exact problem that the blockchain is supposed to solve?
To use Quadriga as justification for why custodians or SOC II or other advanced schemes are needed for platforms is rather silly, when any framework or visibility at all, or even the most basic of storage policies, would have prevented the whole thing. It's just an embarrassment.
We are now seeing regulators take strong action. CoinSquare in Canada with multi-million dollar fines. BitMex from the US, criminal charges and arrests. OkEx, with full disregard of withdrawals and no communication. Who's next?
We have a unique window today where we can solve these problems, and not permanently destroy innovation with unreasonable expectations, but we need to act quickly. This is a unique historic time that will never come again.
When we are faced with a new technology, we often look for analogies to understand and describe it. To bridge the knowledge gap, we seek analogies from the universe concepts familiar to us. In our search for the right analogies, we often risk misunderstanding this new technology. Blockchain technology has introduced a paradigm shift in the way we organize ourselves to generate, account for, transfer and store value. Yet, we are still in early stages of understanding its importance. In this post I will try to shed light on the top 5 major misconceptions about digital assets and about the open blockchain—a technology that underlies them. 1.Blockchain, not bitcoin This misconception stems from failing to realize why blockchain exists in the first place. In essence, blockchain is a shared ledger designed to function in an extremely hostile, open environment. It derives its value from the security of its tamper-proof records. In the blockchain networks powered by proof-of-work (PoW) algorithms, that security is achieved by miners competing to solve a computationally intensive puzzle. The miners do this with the expectation of receiving a digital token as a reward. This digital token can be freely redeemed for fiat currency to cover their operating costs and generate profits. These open systems are designed in such a way that value of their token ultimately dictates the level of security of their network. When we decouple the concept of blockchain from its underlying token, it simply wipes out most, if not the entire, value proposition the blockchain as a concept. Implementing blockchain as a token-less system of recordkeeping within a single company is perhaps the prime example of this misconception. Such an endeavor fails to use one of the most valuable properties of the open blockchain. Implementing a blockchain solution in such settings may even be counter-productive especially when better alternatives exist, in the form of databases with proper access control. Blockchain could be useful in a commercial setting where a consortium of companies decides to use a single ledger to keep track of important transactions. An example of such transactions could be shares of companies that are traded on Wall Street millions of times each day. These transactions are reconciled periodically between the financial institutions by a trusted third-party entity, which could be ultimately replaced by a blockchain-based protocol at a fraction of their cost. That said, these systems may never become as secure and tamper-proof as the open blockchain as the security of the network depends on the number of its minestaking nodes. 2.Exchange Hacks = Digital Assets Are Not Secure Centralized digital asset exchanges are popular avenues for exchanging digital assets for currencies such as USD or other digital assets. However, their design creates a system of incentives for external or internal actors to compromise them. When we hear about exchange hacks in the digital asset space, it almost always involves compromising the security of an entity that operates within the traditional server-client architecture. However, the mainstream consciousness conflates the digital exchange security with that of technology that underlies digital assets. Holding a digital asset in a cold storage is extremely secure. Holding it in an exchange is not. 3.Blockchain has low TPS, hence it will never compete with or replace traditional financial infrastructure Traditional financial systems process a vast number transactions every day. This transaction processing capacity is called throughput and is measured by a metric called transactions per second (TPS). Payment networks such as Visa claim to process up to 56,000 TPS, while traditional exchanges are likely to have much higher capacity to process transactions to accommodate high-frequency trading. Today, the Bitcoin network processes around 4-5 transactions per second while the second largest digital asset network—Ethereum processes around 15. If we compare the current state of the blockchain technology to the demands of the global financial industry, it is easy to see why such claims could be justified. However, this is a myopic view of this new technology, very much akin to the way Kodak dismissed digital cameras as a potential threat to its business model. It failed to recognize (i) the speed at which digital cameras would develop and (ii) the fundamental shift the digital cameras introduced in the way we take and store pictures, despite being the company that invented digital cameras in 1975. As the history shows, that was Kodak’s grave mistake. It is hard to ignore the historical parallels here. The digital asset space is evolving fast. The next-generation networks, which operate under the proof-of-stake consensus mechanism, preserve the securities of proof-of-work, but do away with its capacity limitations. A notable example of that is Cardano. These new networks also represent a shift in the global economic paradigm that many do not seem to notice. 4.Digital Assets Have No Intrinsic Value The concept of intrinsic value, or lack thereof, is often used to describe digital assets as a purely speculative asset class. While this may apply, with some justification, to digital assets which only claim to function as money, such claims fail to capture the wider nature of platform-based digital assets, which derive their value from the direct use of their networks. In digital asset platforms like Cardano or Algorand, the native token gives the holder the right to participate in the consensus of the network through the process of staking. The consensus mechanism secures the network, maintains the decentralized ledger, enables participation in the governance of the network and can sustain myriads of decentralized applications with real-world utilities. Put simply, digital tokens may derive their value from the economic activity that takes place on their networks. The economic activity on such networks, in turn depends on the security of the network, its technical capabilities, its transaction fees and the real-world utility of decentralized applications that reside on them. In that respect, they can be thought of as a new kind of financial instrument. The kind that seamlessly combines the properties of currencies, commodities, and shares of ownership into a single digital token. These new instruments require that we develop and apply new analytical frameworks to value them, much like the concepts of equities and derivatives did when they first emerged as new financial instruments. 5.Developed Economies Do Not Need Blockchain Technology Because They Have Well-Established Financial/Commercial Solutions. While it is easy to see how the blockchain technology could unlock a lot of value in the emerging markets, the idea that developed economies do not benefit from this technology is short-sighted. It is akin to saying that cell phones are a great technology for emerging markets, but developed markets already have land lines, hence do not need them. In a similar vein, we could argue that developed countries do not need internet because most of what internet could do already exists in analog form. We have to realize that (i) at its core, blockchain is a paradigm-shifting infrastructure/technology and (ii) despite its nascent stage, blockchain is extremely cost-effective… To a degree that it has the capacity to fundamentally disrupt a slew economic sectors out of existence, from banking to real estate, and create new ones. When we accept this eventuality, we will have to face some uncomfortable truths that many sectors will not exist in their current form or entirely disappear. Currently these sectors provide economic value, employment and generate taxes. If some blockchain-based solution is to replace them in 3-5 years, where would that value migrate? Losing them to open blockchain networks would not be acceptable politically or economically for many developed countries. One way out of this could be for developed countries to invest in national networks, allowing them to reap the benefits of this new technology, while retaining value from economic activity of their citizens and companies within their jurisdictions. Another, more realistic way, would be to invest heavily into friendly legal frameworks that would encourage both individuals and companies that would ultimately develop or maintain open blockchain protocols migrate to these jurisdictions, drawing in talent, capital and innovation. One thing is becoming increasingly clear: we can no longer ignore the elephant in the room. Much like digital cameras and internet itself, blockchain is unstoppable. 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https://preview.redd.it/nnuhfz6q01t51.png?width=700&format=png&auto=webp&s=15ce35581f2ebad02af140180f5a8b1fe7931f00 Technology & Products Public Chain Development · WASM AMPL contract debugging (100%) · Research on WASM zero-knowledge proof anonymous transfer (50%) · WASM Sushi contract coding (100%) · WASM RPC iOS asynchronous library commissioning (100%) · Verification of the signature push public key algorithm and testing its codability (C++, go) through RPC (100%) · The new lock-up airdrop contract function: lock-up users can claim the unlocked assets by entering RegID (100%) · Porting ASWAP contract to public chain 3.0, adding platform fee processing (100%) · Optimization of Yield Farming contract reward distribution (100%) · Optimization of Yield Farming contract penalty distribution mechanism (100%) · Yield Farming contract testing (100%) · Deployment and initial configuration of WICC and WGRT yield farming contracts and Wayki-X contract completed (100%) · Ownership of issuance and transfer rights of the bottom-level token ROG transferred to Wayki-X contract (100%) · The initial generation of ROG completed. 10.08M ROG entered the WICC pool, 2.52M ROG entered the WGRT pool (100%) · The first 189,000 ROG was minted in Wayki-X contract for rewards by inflation (12.6M × 1.5%) (100%) · Transfer of 70,000 ROG to AEX for Ecosystem Yield Farming completed (100%) · WASM developer documentation: added detailed WASM table (Simplified Chinese) (100%) · WASM developer documentation: added call of multiple contracts and multisignature transactions in WASM contract (Simplified Chinese) (100%) Application Development · Yield Farming back end API (100%) · Yield Farming front end page optimization (100%) · Yield Farming front end localization (100%) · Yield Farming pre-release initial API docking (100%) · Yield Farming application testing (100%) · Yield Farming application release (100%) · xUSD & ROG added to Instant in WaykiTimes Android (100%) · Memory leak issue fixed in Instant in WaykiTimes (100%) · Data loading error when swiping in Discover fixed in WaykiTimes (100%) · Data display optimized in Getting Started in WaykiTimes · UI debugging of several pages in WaykiTimes (100%) · WaykiTimes 3.0.4 released (100%) · WaykiTimes Help Center released (100%) · WaykiTimes Getting Started released (100%) · WaykiTimes remember password function released (100%) · WaykiTimes iOS App Store version tested (100%) · Google crash analysis and testing added to WaykiTimes Android (100%) · Solved the data loading issue when swiping in Wayki-X Synths (100%) · Wayki-X price feed delay fixed (100%) · Amount issue in the plug-in wallet fixed (100%) · Display error of release contract type of universal transactions fixed on the blockchain explorer (100%) · WASM contract display specifications for the blockchain explorer completed (100%) · Development of the Coinbase integration project (wicc-rosetta-api) (85%) Plan for October Public Chain Development · Research on WASM zero-knowledge proof anonymous transfer · Correction of ASWAP contract proof of liquidity token generation rules · ASWAP contract testing · Docking of ASWAP contract with third parties · Continuous updating of coind RPC interface documentation Application Development · Trade — transaction details HTML5 page to native page transfer in WaykiTimes · Development of the Coinbase integration project (wicc-rosetta-api) Market International Market · On September 4, Russian volunteers opened the second WaykiChain Russian group in Telegram: https://t.me/waykichainrussian. · On September 6, WaykiChain opened the official community in Discord: https://discord.gg/XyAkqa. · On September 6, WaykiChain CTO Richard Chen was invited to the Blockchain + Innovative Service and Industrial Application Conference and the China Chamber of International Commerce Blockchain Innovation Service Industry Committee Establishment Conference as a member of the expert group. · On September 11, the famous US blockchain TV program Exploring the Block tweeted about WaykiChain, showing it is optimistic about the future development of the integrated DeFi ecology of WaykiChain. · On September 11, the famous business platform Yahoo Finance released WaykiChain project information and announced that WaykiChain CEO Gordon Gao gives an interview to NASDAQ MarketSite’s Jane King on September 12. · At 7:00 PM EDT on September 12, world’s largest financial channel Bloomberg TV reported that WaykiChain CEO Gordon Gao was interviewed by Jane King of NASDAQ MarketSite. The interview aired on Fox Business Network at 10:30 PM EDT on September 14. · On September 12, cryptocurrency Twitter account Crypto Catalog tweeted about WaykiChain, showing it is optimistic about the future development of the integrated DeFi ecology of WaykiChain. · On September 13, DeFi List added WaykiChain governance token WGRT. · On September 13, WaykiChain reached market cooperation with the Indian blockchain influencer Gmadvice who started to serve as WaykiChain community manager in India. · On September 16, WaykiChain released “WaykiChain Launches Phoenix Yield Farming with WICC/WGRT Dual-pool for ROG Genesis Issuance” on Twitter. Up to September 21, the news hit 2,400+ retweets. · On September 17, the cryptocurrency influencer DeFi List retweeted “WaykiChain Launches Phoenix Yield Farming with WICC/WGRT Dual-pool for ROG Genesis Issuance”. · On September 18, WaykiChain reached strategic market cooperation with the Korean crypto influencer Pantera who will help WaykiChain establish a broad and strong consensus in Korea. · On September 19, “WaykiChain Dual-pool ROG Yield Farming Korean Group” community established. · On September 20, the influencer Crypto Wendy retweeted “WaykiChain Launches Phoenix Yield Farming with WICC/WGRT Dual-pool for ROG Genesis Issuance”. · On September 21, 130+ Korean media outlets published “WaykiChain Launches Phoenix Yield Farming with WICC & WGRT Dual-pool for ROG Genesis Issuance”. · On September 23, WaykiChain co-founder and CEO Gordon Gao was invited to an AMA session with ICO Pantera Group, Korea’s top Telegram group (stats by u/combot), where he shared his insights into DeFi with 4,000+ Korean users and introduced WaykiChain’s ROG Genesis Yield Farming. · On September 24, WaykiChain tweeted “ROG Genesis Yield Farming FAQ” and “Leave your question/problem toward WaykiTimes/Wayki-X/ROG Genesis Yield Farming in the Google forms below to share 800 WICC Giveaway!”, the number of engagements is 1,500+. · On September 24, WaykiChain global partner Vincent Lionheart was invited to an AMA session to D’va Community. · On September 24, The Business Telegraph, Bitcoin Garden, and other media published “WaykiChain Launches Phoenix Yield Farming with WICC & WGRT Dual-pool”. · On September 24, WaykiChain tweeted the ROG Genesis Yield Farming Countdown. The news hit 1,000+ retweets. · On September 25, ROG Genesis Yield Farming news was the day’s hit in Korea with 5,000+ views on Korean cryptocurrency forums. National Market · On September 1, CoinTiger listed WaykiChain governance token WGRT and opened the WGRT/USDT pair. WGRT net buy & hold competition started and the CoinTiger community joined a series of WGRT-themed challenges. · On September 1, WaykiChain governance token WGRT successfully mapped to Ethereum and ERC-20 WGRT was created. The world’s largest DEX Uniswap officially supported it and listed the WGRT/USDT pair. · On September 2, WaykiChain Strategic Analyst Jing Tao gave the speech “WGRT Dragon, Fly, Tiger, and Leap: Community Governance Upstart” to the MXC community and distributed 3 gold bars to the event participants. · On September 7, WaykiChain Strategy Analyst Jing Tao attended [This Is Coin Coffee] live DeFi contest co-sponsored by Coinka, fogwu.com, and tuoniaox.com. WEDEX founder & CEO, Loopring co-founder Chen Xiaoliang and ChainNews Research Director Pan Zhixiong joined the event. · On September 9, Gate.io selected WaykiChain governance token WGRT for the Listing Vote. Each voter had a chance to share an airdrop of 420,875.43 WGRT. WGRT passed the voting with 53,293,775 votes and was successfully listed on Gate.io. · On September 10, WGRT/USDT trading pair and WGRT withdrawals opened on Gate.io. · On September 10, WaykiChain released WaykiChain Governance Token WGRT Information and Addresses. The team announced that before July 1, 2021, WGRT circulating supply will be strictly controlled at 10% of the total supply, or 2.1 billion. · On September 9 to 11, WaykiChain was invited to IoT World China & 5G China along with 400+ exhibitors including Huawei, Baidu, and Tencent. WaykiChain demonstrated the integrated public chain DeFi ecosystem that will help China’s digital construction. · On September 11, WaykiChain Strategy Analyst Jing Tao was invited to the Bepal community and shared the speech “WaykiChain Governance Token WGRT: Accumulation and Breakout”. WaykiChain airdropped 3,000 WGRT and cash red envelopes to the Bepal community members. · On September 12, WaykiChain Technology & Development Manager Yuanhang Xiao and Strategy Analyst Jing Tao introduced [New WaykiChain DeFi Product: Decentralized Synthetic Asset Issuance Protocol Wayki-X] in the official WaykiChain yizhibo account. During the live broadcast, WaykiChain distributed pure gold bars and branded gifts to lucky users. · On September 13, WaykiChain co-founder & CEO Gordon Gao and Overseas Director Qiyuan Mei shared the speech “WaykiChain Opens the Era of Integrated DeFi Public Chains” in the Gate.io live broadcast room. Gate.io CPO Jiuer was the broadcast host. The guests explained WaykiChain’s DeFi strategy and revealed the launch of Yield Farming. · On September 15, WaykiChain CEO Gordon Gao and BTC38 co-founder Tianwei Huang held the live stream titled “Eight Questions to Explain DeFi Trends and Opportunities” in yizhibo. The hosts analyzed the status and trends of DeFi, discussed DeFi deployment by public chains and exchanges, and new opportunities in synthetic asset trading. WaykiChain distributed pure gold bars and branded gifts to lucky viewers of the stream. · On September 16, WaykiChain Strategy Analyst Jing Tao shared the speech titled “WaykiChain’s Integrated DeFi Ecosystem Layout” as the guest of btcmoney.cc. · On September 18, Bying community invited WaykiChain Strategy Analyst Jing Tao to share the speech “New DeFi Opportunity: Phoenix Yield Farming”. WaykiChain held a WICC airdrop for Bying community members. · On September 18, WaykiChain published the article “No Pre-mining, ICO, or Reserve! WaykiChain Launches Dual-pool Phoenix Yield Farming”. · On September 19, WaykiChain published the article “Chapter 1. The Financial Innovation of Blockchain Reformation. The Origin, Logic, and Value of WaykiChain ROG” introducing the background of ROG, the operation mechanism of the decentralized synthetic asset system Wayki-X, and the value foundation of ROG in detail. · On September 23, “No Pre-mining, ICO, or Reserve! WaykiChain ROG Genesis Farming and Early Release Guide” was released across Chinese media. · On September 24, WaykiChain CEO Gordon Gao, CTO Richard Chen, and CPO Xi Zhang held a joint live stream on yizhibo explaining the future planning of WaykiChain decentralized synthetic asset issuance protocol Wayki-X, ROG, and WaykiChain DeFi in terms of business model, technology, and products. WaykiChain distributed 1 pure gold bar and 6 branded gifts to the lucky stream viewers. · On September 24, Gate.io and WaykiChain launched the WGRT Investment Competition. The prizes are a BMW G 310 R motorcycle, a 13” MacBook Pro, a 10.2” iPad, 17 pure gold bars and 99,000 WGRT. · On September 25, various Chinese media released “Wayki-X 101: WaykiChain Decentralized Synthetic Asset Protocol” introducing the functions and mechanism of the decentralized synthetic asset issuance protocol Wayki-X and the value of its token ROG in detail. · On September 25, WaykiChain launched the “Looking for the Genesis Prophet” community event. The winners received 10 branded gifts. · On September 25, WaykiChain ROG Genesis Yield Farming launched. WICC and WGRT pool quotas (5 million and 25 million, respectively) were full within just one hour. · On September 25, WaykiChain reached ecosystem partnership with AEX. AEX became the first platform to join ROG Ecosystem Yield Farming. · On September 25, WaykiChain partnered with Bying wallet. ROG Genesis Yield Farming is available in Bying wallet. · On September 26, ROG, the main token of WaykiChain’s decentralized synthetic asset issuance protocol Wayki-X, was listed on AEX. ROG/USDT trading pair is available. · On September 26, WaykiChain CEO Gordon Gao gave lectures “DeFi Financial Principles and Commercial Applications” and “DeFi Industry Panoramic Scan” at The First Offline Practical Training Camp of Hash Power University, Shanghai Station. Participants included Ontology founder Jun Li, Chainlink Labs — China Head Philip Fei, Digital Renaissance Foundation Managing Director Cao Yin, and Waterdrip Capital founding partner Zheng Yushan. · On September 28, WaykiChain co-founder and CEO Gordon Gao was a guest at Hash Power Knowledge Base Private Meeting, Shenzhen Station where he shared the speech titled “Feasible Ways of DeFi Application Popularization”. Other guests included Ontology founder Jun Li, DeBank founder and CEO Tang Hongbo, and Huobi Research Chief Technical Researcher Tianyuan Ma.
Hey all, I've been researching coins since 2017 and have gone through 100s of them in the last 3 years. I got introduced to blockchain via Bitcoin of course, analyzed Ethereum thereafter and from that moment I have a keen interest in smart contact platforms. I’m passionate about Ethereum but I find Zilliqa to have a better risk-reward ratio. Especially because Zilliqa has found an elegant balance between being secure, decentralized and scalable in my opinion.
Below I post my analysis of why from all the coins I went through I’m most bullish on Zilliqa (yes I went through Tezos, EOS, NEO, VeChain, Harmony, Algorand, Cardano etc.). Note that this is not investment advice and although it's a thorough analysis there is obviously some bias involved. Looking forward to what you all think!
Fun fact: the name Zilliqa is a play on ‘silica’ silicon dioxide which means “Silicon for the high-throughput consensus computer.”
This post is divided into (i) Technology, (ii) Business & Partnerships, and (iii) Marketing & Community. I’ve tried to make the technology part readable for a broad audience. If you’ve ever tried understanding the inner workings of Bitcoin and Ethereum you should be able to grasp most parts. Otherwise, just skim through and once you are zoning out head to the next part.
Technology and some more:
The technology is one of the main reasons why I’m so bullish on Zilliqa. First thing you see on their website is: “Zilliqa is a high-performance, high-security blockchain platform for enterprises and next-generation applications.” These are some bold statements.
Before we deep dive into the technology let’s take a step back in time first as they have quite the history. The initial research paper from which Zilliqa originated dates back to August 2016: Elastico: A Secure Sharding Protocol For Open Blockchains where Loi Luu (Kyber Network) is one of the co-authors. Other ideas that led to the development of what Zilliqa has become today are: Bitcoin-NG, collective signing CoSi, ByzCoin and Omniledger.
The technical white paper was made public in August 2017 and since then they have achieved everything stated in the white paper and also created their own open source intermediate level smart contract language called Scilla (functional programming language similar to OCaml) too.
Mainnet is live since the end of January 2019 with daily transaction rates growing continuously. About a week ago mainnet reached 5 million transactions, 500.000+ addresses in total along with 2400 nodes keeping the network decentralized and secure. Circulating supply is nearing 11 billion and currently only mining rewards are left. The maximum supply is 21 billion with annual inflation being 7.13% currently and will only decrease with time.
Zilliqa realized early on that the usage of public cryptocurrencies and smart contracts were increasing but decentralized, secure, and scalable alternatives were lacking in the crypto space. They proposed to apply sharding onto a public smart contract blockchain where the transaction rate increases almost linear with the increase in the amount of nodes. More nodes = higher transaction throughput and increased decentralization. Sharding comes in many forms and Zilliqa uses network-, transaction- and computational sharding. Network sharding opens up the possibility of using transaction- and computational sharding on top. Zilliqa does not use state sharding for now. We’ll come back to this later.
Before we continue dissecting how Zilliqa achieves such from a technological standpoint it’s good to keep in mind that a blockchain being decentralised and secure and scalable is still one of the main hurdles in allowing widespread usage of decentralised networks. In my opinion this needs to be solved first before blockchains can get to the point where they can create and add large scale value. So I invite you to read the next section to grasp the underlying fundamentals. Because after all these premises need to be true otherwise there isn’t a fundamental case to be bullish on Zilliqa, right?
Down the rabbit hole
How have they achieved this? Let’s define the basics first: key players on Zilliqa are the users and the miners. A user is anybody who uses the blockchain to transfer funds or run smart contracts. Miners are the (shard) nodes in the network who run the consensus protocol and get rewarded for their service in Zillings (ZIL). The mining network is divided into several smaller networks called shards, which is also referred to as ‘network sharding’. Miners subsequently are randomly assigned to a shard by another set of miners called DS (Directory Service) nodes. The regular shards process transactions and the outputs of these shards are eventually combined by the DS shard as they reach consensus on the final state. More on how these DS shards reach consensus (via pBFT) will be explained later on.
The Zilliqa network produces two types of blocks: DS blocks and Tx blocks. One DS Block consists of 100 Tx Blocks. And as previously mentioned there are two types of nodes concerned with reaching consensus: shard nodes and DS nodes. Becoming a shard node or DS node is being defined by the result of a PoW cycle (Ethash) at the beginning of the DS Block. All candidate mining nodes compete with each other and run the PoW (Proof-of-Work) cycle for 60 seconds and the submissions achieving the highest difficulty will be allowed on the network. And to put it in perspective: the average difficulty for one DS node is ~ 2 Th/s equaling 2.000.000 Mh/s or 55 thousand+ GeForce GTX 1070 / 8 GB GPUs at 35.4 Mh/s. Each DS Block 10 new DS nodes are allowed. And a shard node needs to provide around 8.53 GH/s currently (around 240 GTX 1070s). Dual mining ETH/ETC and ZIL is possible and can be done via mining software such as Phoenix and Claymore. There are pools and if you have large amounts of hashing power (Ethash) available you could mine solo.
The PoW cycle of 60 seconds is a peak performance and acts as an entry ticket to the network. The entry ticket is called a sybil resistance mechanism and makes it incredibly hard for adversaries to spawn lots of identities and manipulate the network with these identities. And after every 100 Tx Blocks which corresponds to roughly 1,5 hour this PoW process repeats. In between these 1,5 hour, no PoW needs to be done meaning Zilliqa’s energy consumption to keep the network secure is low. For more detailed information on how mining works click here. Okay, hats off to you. You have made it this far. Before we go any deeper down the rabbit hole we first must understand why Zilliqa goes through all of the above technicalities and understand a bit more what a blockchain on a more fundamental level is. Because the core of Zilliqa’s consensus protocol relies on the usage of pBFT (practical Byzantine Fault Tolerance) we need to know more about state machines and their function. Navigate to Viewblock, a Zilliqa block explorer, and just come back to this article. We will use this site to navigate through a few concepts.
We have established that Zilliqa is a public and distributed blockchain. Meaning that everyone with an internet connection can send ZILs, trigger smart contracts, etc. and there is no central authority who fully controls the network. Zilliqa and other public and distributed blockchains (like Bitcoin and Ethereum) can also be defined as state machines.
Taking the liberty of paraphrasing examples and definitions given by Samuel Brooks’ medium article, he describes the definition of a blockchain (like Zilliqa) as: “A peer-to-peer, append-only datastore that uses consensus to synchronize cryptographically-secure data”.
Next, he states that: "blockchains are fundamentally systems for managing valid state transitions”. For some more context, I recommend reading the whole medium article to get a better grasp of the definitions and understanding of state machines. Nevertheless, let’s try to simplify and compile it into a single paragraph. Take traffic lights as an example: all its states (red, amber, and green) are predefined, all possible outcomes are known and it doesn’t matter if you encounter the traffic light today or tomorrow. It will still behave the same. Managing the states of a traffic light can be done by triggering a sensor on the road or pushing a button resulting in one traffic lights’ state going from green to red (via amber) and another light from red to green.
With public blockchains like Zilliqa, this isn’t so straightforward and simple. It started with block #1 almost 1,5 years ago and every 45 seconds or so a new block linked to the previous block is being added. Resulting in a chain of blocks with transactions in it that everyone can verify from block #1 to the current #647.000+ block. The state is ever changing and the states it can find itself in are infinite. And while the traffic light might work together in tandem with various other traffic lights, it’s rather insignificant comparing it to a public blockchain. Because Zilliqa consists of 2400 nodes who need to work together to achieve consensus on what the latest valid state is while some of these nodes may have latency or broadcast issues, drop offline or are deliberately trying to attack the network, etc.
Now go back to the Viewblock page take a look at the amount of transaction, addresses, block and DS height and then hit refresh. Obviously as expected you see new incremented values on one or all parameters. And how did the Zilliqa blockchain manage to transition from a previous valid state to the latest valid state? By using pBFT to reach consensus on the latest valid state.
After having obtained the entry ticket, miners execute pBFT to reach consensus on the ever-changing state of the blockchain. pBFT requires a series of network communication between nodes, and as such there is no GPU involved (but CPU). Resulting in the total energy consumed to keep the blockchain secure, decentralized and scalable being low.
pBFT stands for practical Byzantine Fault Tolerance and is an optimization on the Byzantine Fault Tolerant algorithm. To quote Blockonomi: “In the context of distributed systems, Byzantine Fault Tolerance is the ability of a distributed computer network to function as desired and correctly reach a sufficient consensus despite malicious components (nodes) of the system failing or propagating incorrect information to other peers.” Zilliqa is such a distributed computer network and depends on the honesty of the nodes (shard and DS) to reach consensus and to continuously update the state with the latest block. If pBFT is a new term for you I can highly recommend the Blockonomi article.
The idea of pBFT was introduced in 1999 - one of the authors even won a Turing award for it - and it is well researched and applied in various blockchains and distributed systems nowadays. If you want more advanced information than the Blockonomi link provides click here. And if you’re in between Blockonomi and the University of Singapore read the Zilliqa Design Story Part 2 dating from October 2017. Quoting from the Zilliqa tech whitepaper: “pBFT relies upon a correct leader (which is randomly selected) to begin each phase and proceed when the sufficient majority exists. In case the leader is byzantine it can stall the entire consensus protocol. To address this challenge, pBFT offers a view change protocol to replace the byzantine leader with another one.”
pBFT can tolerate ⅓ of the nodes being dishonest (offline counts as Byzantine = dishonest) and the consensus protocol will function without stalling or hiccups. Once there are more than ⅓ of dishonest nodes but no more than ⅔ the network will be stalled and a view change will be triggered to elect a new DS leader. Only when more than ⅔ of the nodes are dishonest (66%) double-spend attacks become possible.
If the network stalls no transactions can be processed and one has to wait until a new honest leader has been elected. When the mainnet was just launched and in its early phases, view changes happened regularly. As of today the last stalling of the network - and view change being triggered - was at the end of October 2019.
Another benefit of using pBFT for consensus besides low energy is the immediate finality it provides. Once your transaction is included in a block and the block is added to the chain it’s done. Lastly, take a look at this article where three types of finality are being defined: probabilistic, absolute and economic finality. Zilliqa falls under the absolute finality (just like Tendermint for example). Although lengthy already we skipped through some of the inner workings from Zilliqa’s consensus: read the Zilliqa Design Story Part 3 and you will be close to having a complete picture on it. Enough about PoW, sybil resistance mechanism, pBFT, etc. Another thing we haven’t looked at yet is the amount of decentralization.
Currently, there are four shards, each one of them consisting of 600 nodes. 1 shard with 600 so-called DS nodes (Directory Service - they need to achieve a higher difficulty than shard nodes) and 1800 shard nodes of which 250 are shard guards (centralized nodes controlled by the team). The amount of shard guards has been steadily declining from 1200 in January 2019 to 250 as of May 2020. On the Viewblock statistics, you can see that many of the nodes are being located in the US but those are only the (CPU parts of the) shard nodes who perform pBFT. There is no data from where the PoW sources are coming. And when the Zilliqa blockchain starts reaching its transaction capacity limit, a network upgrade needs to be executed to lift the current cap of maximum 2400 nodes to allow more nodes and formation of more shards which will allow to network to keep on scaling according to demand. Besides shard nodes there are also seed nodes. The main role of seed nodes is to serve as direct access points (for end-users and clients) to the core Zilliqa network that validates transactions. Seed nodes consolidate transaction requests and forward these to the lookup nodes (another type of nodes) for distribution to the shards in the network. Seed nodes also maintain the entire transaction history and the global state of the blockchain which is needed to provide services such as block explorers. Seed nodes in the Zilliqa network are comparable to Infura on Ethereum.
The seed nodes were first only operated by Zilliqa themselves, exchanges and Viewblock. Operators of seed nodes like exchanges had no incentive to open them for the greater public. They were centralised at first. Decentralisation at the seed nodes level has been steadily rolled out since March 2020 ( Zilliqa Improvement Proposal 3 ). Currently the amount of seed nodes is being increased, they are public-facing and at the same time PoS is applied to incentivize seed node operators and make it possible for ZIL holders to stake and earn passive yields. Important distinction: seed nodes are not involved with consensus! That is still PoW as entry ticket and pBFT for the actual consensus.
5% of the block rewards are being assigned to seed nodes (from the beginning in 2019) and those are being used to pay out ZIL stakers. The 5% block rewards with an annual yield of 10.03% translate to roughly 610 MM ZILs in total that can be staked. Exchanges use the custodial variant of staking and wallets like Moonlet will use the non-custodial version (starting in Q3 2020). Staking is being done by sending ZILs to a smart contract created by Zilliqa and audited by Quantstamp.
With a high amount of DS; shard nodes and seed nodes becoming more decentralized too, Zilliqa qualifies for the label of decentralized in my opinion.
Generalized: programming languages can be divided into being ‘object-oriented’ or ‘functional’. Here is an ELI5 given by software development academy: * “all programs have two basic components, data – what the program knows – and behavior – what the program can do with that data. So object-oriented programming states that combining data and related behaviors in one place, is called “object”, which makes it easier to understand how a particular program works. On the other hand, functional programming argues that data and behavior are different things and should be separated to ensure their clarity.” *
Scilla is on the functional side and shares similarities with OCaml: OCaml is a general-purpose programming language with an emphasis on expressiveness and safety. It has an advanced type system that helps catch your mistakes without getting in your way. It's used in environments where a single mistake can cost millions and speed matters, is supported by an active community, and has a rich set of libraries and development tools. For all its power, OCaml is also pretty simple, which is one reason it's often used as a teaching language.
Scilla is blockchain agnostic, can be implemented onto other blockchains as well, is recognized by academics and won a so-called Distinguished Artifact Award award at the end of last year.
One of the reasons why the Zilliqa team decided to create their own programming language focused on preventing smart contract vulnerabilities is that adding logic on a blockchain, programming, means that you cannot afford to make mistakes. Otherwise, it could cost you. It’s all great and fun blockchains being immutable but updating your code because you found a bug isn’t the same as with a regular web application for example. And with smart contracts, it inherently involves cryptocurrencies in some form thus value.
Another difference with programming languages on a blockchain is gas. Every transaction you do on a smart contract platform like Zilliqa or Ethereum costs gas. With gas you basically pay for computational costs. Sending a ZIL from address A to address B costs 0.001 ZIL currently. Smart contracts are more complex, often involve various functions and require more gas (if gas is a new concept click here ).
So with Scilla, similar to Solidity, you need to make sure that “every function in your smart contract will run as expected without hitting gas limits. An improper resource analysis may lead to situations where funds may get stuck simply because a part of the smart contract code cannot be executed due to gas limits. Such constraints are not present in traditional software systems”.Scilla design story part 1
Some examples of smart contract issues you’d want to avoid are: leaking funds, ‘unexpected changes to critical state variables’ (example: someone other than you setting his or her address as the owner of the smart contract after creation) or simply killing a contract.
Scilla also allows for formal verification. Wikipedia to the rescue: In the context of hardware and software systems, formal verification is the act of proving or disproving the correctness of intended algorithms underlying a system with respect to a certain formal specification or property, using formal methods of mathematics.
Formal verification can be helpful in proving the correctness of systems such as: cryptographic protocols, combinational circuits, digital circuits with internal memory, and software expressed as source code.
“Scilla is being developed hand-in-hand with formalization of its semantics and its embedding into the Coq proof assistant — a state-of-the art tool for mechanized proofs about properties of programs.”
Simply put, with Scilla and accompanying tooling developers can be mathematically sure and proof that the smart contract they’ve written does what he or she intends it to do.
Smart contract on a sharded environment and state sharding
There is one more topic I’d like to touch on: smart contract execution in a sharded environment (and what is the effect of state sharding). This is a complex topic. I’m not able to explain it any easier than what is posted here. But I will try to compress the post into something easy to digest.
Earlier on we have established that Zilliqa can process transactions in parallel due to network sharding. This is where the linear scalability comes from. We can define simple transactions: a transaction from address A to B (Category 1), a transaction where a user interacts with one smart contract (Category 2) and the most complex ones where triggering a transaction results in multiple smart contracts being involved (Category 3). The shards are able to process transactions on their own without interference of the other shards. With Category 1 transactions that is doable, with Category 2 transactions sometimes if that address is in the same shard as the smart contract but with Category 3 you definitely need communication between the shards. Solving that requires to make a set of communication rules the protocol needs to follow in order to process all transactions in a generalised fashion.
There is no strict defined roadmap but here are topics being worked on. And via the Zilliqa website there is also more information on the projects they are working on.
Business & Partnerships
It’s not only technology in which Zilliqa seems to be excelling as their ecosystem has been expanding and starting to grow rapidly. The project is on a mission to provide OpenFinance (OpFi) to the world and Singapore is the right place to be due to its progressive regulations and futuristic thinking. Singapore has taken a proactive approach towards cryptocurrencies by introducing the Payment Services Act 2019 (PS Act). Among other things, the PS Act will regulate intermediaries dealing with certain cryptocurrencies, with a particular focus on consumer protection and anti-money laundering. It will also provide a stable regulatory licensing and operating framework for cryptocurrency entities, effectively covering all crypto businesses and exchanges based in Singapore. According to PWC 82% of the surveyed executives in Singapore reported blockchain initiatives underway and 13% of them have already brought the initiatives live to the market. There is also an increasing list of organizations that are starting to provide digital payment services. Moreover, Singaporean blockchain developers Building Cities Beyond has recently created an innovation $15 million grant to encourage development on its ecosystem. This all suggests that Singapore tries to position itself as (one of) the leading blockchain hubs in the world.
Zilliqa seems to already take advantage of this and recently helped launch Hg Exchange on their platform, together with financial institutions PhillipCapital, PrimePartners and Fundnel. Hg Exchange, which is now approved by the Monetary Authority of Singapore (MAS), uses smart contracts to represent digital assets. Through Hg Exchange financial institutions worldwide can use Zilliqa's safe-by-design smart contracts to enable the trading of private equities. For example, think of companies such as Grab, Airbnb, SpaceX that are not available for public trading right now. Hg Exchange will allow investors to buy shares of private companies & unicorns and capture their value before an IPO. Anquan, the main company behind Zilliqa, has also recently announced that they became a partner and shareholder in TEN31 Bank, which is a fully regulated bank allowing for tokenization of assets and is aiming to bridge the gap between conventional banking and the blockchain world. If STOs, the tokenization of assets, and equity trading will continue to increase, then Zilliqa’s public blockchain would be the ideal candidate due to its strategic positioning, partnerships, regulatory compliance and the technology that is being built on top of it.
What is also very encouraging is their focus on banking the un(der)banked. They are launching a stablecoin basket starting with XSGD. As many of you know, stablecoins are currently mostly used for trading. However, Zilliqa is actively trying to broaden the use case of stablecoins. I recommend everybody to read this text that Amrit Kumar wrote (one of the co-founders). These stablecoins will be integrated in the traditional markets and bridge the gap between the crypto world and the traditional world. This could potentially revolutionize and legitimise the crypto space if retailers and companies will for example start to use stablecoins for payments or remittances, instead of it solely being used for trading.
Zilliqa also released their DeFi strategic roadmap (dating November 2019) which seems to be aligning well with their OpFi strategy. A non-custodial DEX is coming to Zilliqa made by Switcheo which allows cross-chain trading (atomic swaps) between ETH, EOS and ZIL based tokens. They also signed a Memorandum of Understanding for a (soon to be announced) USD stablecoin. And as Zilliqa is all about regulations and being compliant, I’m speculating on it to be a regulated USD stablecoin. Furthermore, XSGD is already created and visible on block explorer and XIDR (Indonesian Stablecoin) is also coming soon via StraitsX. Here also an overview of the Tech Stack for Financial Applications from September 2019. Further quoting Amrit Kumar on this:
There are two basic building blocks in DeFi/OpFi though: 1) stablecoins as you need a non-volatile currency to get access to this market and 2) a dex to be able to trade all these financial assets. The rest are built on top of these blocks.
So far, together with our partners and community, we have worked on developing these building blocks with XSGD as a stablecoin. We are working on bringing a USD-backed stablecoin as well. We will soon have a decentralised exchange developed by Switcheo. And with HGX going live, we are also venturing into the tokenization space. More to come in the future.”
Additionally, they also have this ZILHive initiative that injects capital into projects. There have been already 6 waves of various teams working on infrastructure, innovation and research, and they are not from ASEAN or Singapore only but global: see Grantees breakdown by country. Over 60 project teams from over 20 countries have contributed to Zilliqa's ecosystem. This includes individuals and teams developing wallets, explorers, developer toolkits, smart contract testing frameworks, dapps, etc. As some of you may know, Unstoppable Domains (UD) blew up when they launched on Zilliqa. UD aims to replace cryptocurrency addresses with a human-readable name and allows for uncensorable websites. Zilliqa will probably be the only one able to handle all these transactions onchain due to ability to scale and its resulting low fees which is why the UD team launched this on Zilliqa in the first place. Furthermore, Zilliqa also has a strong emphasis on security, compliance, and privacy, which is why they partnered with companies like Elliptic, ChainSecurity (part of PwC Switzerland), and Incognito. Their sister company Aqilliz (Zilliqa spelled backwards) focuses on revolutionizing the digital advertising space and is doing interesting things like using Zilliqa to track outdoor digital ads with companies like Foodpanda.
Zilliqa is listed on nearly all major exchanges, having several different fiat-gateways and recently have been added to Binance’s margin trading and futures trading with really good volume. They also have a very impressive team with good credentials and experience. They don't just have “tech people”. They have a mix of tech people, business people, marketeers, scientists, and more. Naturally, it's good to have a mix of people with different skill sets if you work in the crypto space.
Marketing & Community
Zilliqa has a very strong community. If you just follow their Twitter their engagement is much higher for a coin that has approximately 80k followers. They also have been ‘coin of the day’ by LunarCrush many times. LunarCrush tracks real-time cryptocurrency value and social data. According to their data, it seems Zilliqa has a more fundamental and deeper understanding of marketing and community engagement than almost all other coins. While almost all coins have been a bit frozen in the last months, Zilliqa seems to be on its own bull run. It was somewhere in the 100s a few months ago and is currently ranked #46 on CoinGecko. Their official Telegram also has over 20k people and is very active, and their community channel which is over 7k now is more active and larger than many other official channels. Their local communities also seem to be growing.
Moreover, their community started ‘Zillacracy’ together with the Zilliqa core team ( see www.zillacracy.com ). It’s a community-run initiative where people from all over the world are now helping with marketing and development on Zilliqa. Since its launch in February 2020 they have been doing a lot and will also run their own non-custodial seed node for staking. This seed node will also allow them to start generating revenue for them to become a self sustaining entity that could potentially scale up to become a decentralized company working in parallel with the Zilliqa core team. Comparing it to all the other smart contract platforms (e.g. Cardano, EOS, Tezos etc.) they don't seem to have started a similar initiative (correct me if I’m wrong though). This suggests in my opinion that these other smart contract platforms do not fully understand how to utilize the ‘power of the community’. This is something you cannot ‘buy with money’ and gives many projects in the space a disadvantage.
Zilliqa also released two social products called SocialPay and Zeeves. SocialPay allows users to earn ZILs while tweeting with a specific hashtag. They have recently used it in partnership with the Singapore Red Cross for a marketing campaign after their initial pilot program. It seems like a very valuable social product with a good use case. I can see a lot of traditional companies entering the space through this product, which they seem to suggest will happen. Tokenizing hashtags with smart contracts to get network effect is a very smart and innovative idea.
Regarding Zeeves, this is a tipping bot for Telegram. They already have 1000s of signups and they plan to keep upgrading it for more and more people to use it (e.g. they recently have added a quiz features). They also use it during AMAs to reward people in real-time. It’s a very smart approach to grow their communities and get familiar with ZIL. I can see this becoming very big on Telegram. This tool suggests, again, that the Zilliqa team has a deeper understanding of what the crypto space and community needs and is good at finding the right innovative tools to grow and scale.
To be honest, I haven’t covered everything (i’m also reaching the character limited haha). So many updates happening lately that it's hard to keep up, such as the International Monetary Fund mentioning Zilliqa in their report, custodial and non-custodial Staking, Binance Margin, Futures, Widget, entering the Indian market, and more. The Head of Marketing Colin Miles has also released this as an overview of what is coming next. And last but not least, Vitalik Buterin has been mentioning Zilliqa lately acknowledging Zilliqa and mentioning that both projects have a lot of room to grow. There is much more info of course and a good part of it has been served to you on a silver platter. I invite you to continue researching by yourself :-) And if you have any comments or questions please post here!
the year 2020 in Bitcoin Cash so far: a detailed history
the year 2020 in Bitcoin Cash so far: a detailed history What follows at the bottom is a four page long chronological overview of what happened in BCH in 2020 so far. To make it more digestable and fun to read I start with my narrating of the story. My attempt was to remain as objective as possible and "let the facts speak for themselve" with everything sourced. I also link to manyread.casharticles, the decision of which are the important ones to include is certainly not easy, I count on the rest of the community if I overlooked anything important. summary & my narrating of the story: The year started out relatively calm, with cashfusion in "the news" and an older ongoing controversy between Amaury and Roger Ver being worked out. Starting Jan 22nd all debate broke loose with the announcement of “Infrastructure Funding Plan for Bitcoin Cash” by Jiang Zhuoer of BTC.TOP. To illustrate this point 2 days later coinspice ran the title " Roger Ver Praises Vigorous Debate, [...]" and 6 days, less than a week, later Chris Pacia made a read.cash post titled "The 253rd "Thoughts on developer funding" Article" which might have been only a slight exaggeration or he might have been counting. Part of the reason of the tsunami was the lack of worked out details. By the time of Pacia's post a lot had changed: Both BU, Bitcoin Verde and a group of miners had made announcements not to go along with "the plan". On feb 1st, the second version of the IFP was announced by Jiang Zhuoer in a post “BCH miner donation plan update”. Two weeks later on Feb 15th, the third iteration was announced by Bitcoin ABC which was to be activated by hashrate voting and on the same day Flipstarter was introduced, a sign of the search for alternative solutions. After a few more days and a few more people coming out more against the IFP (including Jonald Fyookball, Mark Lundeberg & Josh Ellithorpe), BCHN was announced on feb 20th with a formal release a week later. Also feb 27th, the DAA was brought back into the conversation by Jonathan Toomim with his " The BCH difficulty adjustment algorithm is broken. Here's how to fix it." video. By early march the IFP was effectively dead with its author Jiang Zhuoer vowing to vote against it. This became clear to everyone when ABC, a day later sudddenly shifted gears towards non-protocol, donation based funding: the IFP was dead. End march ABCs 2020 Business Plan was announced as a way to raise $3.3 million. Mid april to mid may was the high time for voluntary funding with four node implementations and General Protocols, a BCH DeFi Startup successfully raising funds. By May 15th, the 6th HF network upgrade things had pretty much cooled down. The upgraded included nothing controversial and even saw an unexpected doubling in the unconfirmed transaction chain. June 15th a month later things started to heat up again with the BCHN announcement to remove the "poison pill" or "automatic replay protection". 8th Jul Jonathan Toomim posted "BCH protocol upgrade proposal: Use ASERT as the new DAA" which promised the solution to the long dragging DAA problem. Jul 23th however an unexpected twist occurred when Amaury Séchet posted "Announcing the Grasberg DAA" an incompatible, alternative solution. This, again, sparked a ton of debate and discussion. Grasberg lasted just two weeks from Jul 23th to Aug 6th when ABC announced its plans for the november 2020 upgrade but it had successfully united the opposition in the meanwhile. ABCs plan for november included dropping grasberg in favour of aserti3–2d and introducing IFPv4. Now we're here August 8th, the IFP which was declared dead after just over a month (Jan 22-Mar 5) is now back in full force. The rest of the history is still being written but if p2p electronic cash is to succeed in any big regard it's very thinkable that these events will get into history books. Important resources:coinspice IFP timeline&Compiled list of BCH Miner Dev Fund posts, articles, discussions History Jan 13th : “Do CoinJoins Really Require Equal Transaction Amounts for Privacy? Part One: CashFusion” article by BitcoinMagazine [source] Jan 13th : “Clearing the Way for Cooperation” Read.cash article by Amaury Séchet [source] on the controversy with Roger Ver about the amount of donations over the years Jan 22nd : “Infrastructure Funding Plan for Bitcoin Cash” IFPv1 announced by Jiang Zhuoer of BTC.TOP [source] IFPv1: 12.5% of BCH coinbase rewards which will last for 6 months through a Hong Kong-based corporation & to be activated on May 15th Jan 22nd : ”Bitcoin Cash Developers React to Infrastructure Fund Announcement: Cautiously Optimistic” coinspice article including Amaury Séchet, Antony Zegers, Jonald Fyookball & Josh Ellithorpe [source] Jan 23rd : Jiang Zhuoer reddit AMA [source] [coinspice article] Jan 23rd : Vitalik weighs in with his take on twitter [source] Jan 23rd :” On the infrastructure funding plan for Bitcoin Cash” article by Amaury Séchet [source] [coinspice article] in which he proposed to place control of the IFP key in his hands together with Jonald Fyookball and Antony Zegers. . A group of 7 to 12 miners, developers, and businessmen in total would get an advisory function. Jan 24th : “Bitcoin.com's Clarifications on the Miner Development Fund“ which emphasizes, among other things, the temporary and reversible nature of the proposal [source] [coinspice article] Jan 24th : “Little Known (But Important!) Facts About the Mining Plan” Read.cash article by Jonald Fyookball in which he defended the IFP and stressed its necessity and temporary nature. Jan 25th : massive amounts of public debate as documented by coinspice [coinspice article] with Justin Bons, Tobias Ruck and Antony Zegers explaining their take on it. Jan 26th : public debate continues: “Assessment and proposal re: the Bitcoin Cash infrastructure funding situation” Read.cash article by imaginary_username [source] which was noteworthy in part because the post earned over Earns $1,000+ in BCH [coinspice article] and “The Best Of Intentions: The Dev Tax Is Intended to Benefit Investors But Will Corrupt Us Instead” by Peter Rizun [source] Jan 27th : “We are a group of miners opposing the BTC.TOP proposal, here's why” article on Read.cash [source] [reddit announcement] Jan 27th : Bitcoin Unlimited's BUIP 143: Refuse the Coinbase Tax [source][reddit announcement] Jan 28th : “Bitcoin Verde's Response to the Miner Sponsored Development Fund” read.cash article by Josh Green in which he explains “Bitcoin Verde will not be implementing any node validation that enforces new coinbase rules.” [source] Jan 28th : “Update on Developer Funding” read.cash article from Bitcoin.com [source] in which they state “As it stands now, Bitcoin.com will not go through with supporting any plan unless there is more agreement in the ecosystem such that the risk of a chain split is negligible.” And that “any funding proposal must be temporary and reversible.” This announcement from bitcoin.com and their mining pool lead the anonymous opposition miners to stand down. [source] Jan 28th : The 253rd "Thoughts on developer funding" Article – by Chris Pacia, to tackle the “serious misconceptions in the community about how software development works”. He ends on a note of support for the IFP because of lack of realistic alternatives. [source] Feb 1st: “BCH miner donation plan update” IFPv2 announced by Jiang Zhuoer of BTC.TOP [source] Which changes the donation mechanism so miners directly send part of their coinbase to the projects they wants to donate to. It would be activated with hashrate voting over a 3-month period with a 2/3 in favour requirement. The proposal also introduces a pilot period and a no donation option, Jiang Zhuoer also says he regards 12.% as too much. Feb 7th: Group of BCH miners led by AsicSeer voice scepticism about the IFP during a reddit AMA [source] Feb 15th: “On the Miner Infrastructure Funding Plan” article by Bitcoin ABC [source] In which they announce they will implement IFPv3 in their upcoming 0.21.0 release. This version has amount reduced to 5% of block reward and will go in effect with BIP 9 hashratevoting and a whitelist with different projects. Feb 15th : “Introducing Flipstarter” [source] Feb 16th :” Bitcoin.com’s stance on the recent block reward diversion proposals” video by Roger Ver on the Bitcoin.com Official Channel. [source] > Ver called Zhuoer’s IFP “clever” but ultimately “problematic.” [coinspice article] Feb 16th :” BCH miner donation plan update again” read.cash article by Jiang Zhuoer of BTC.TOP [source] In which he briefly outlines the details of IFPv3 Feb 17th : “Latest Thoughts On Infrastructure Mining Plan” post by Jonald Fyookball [source] Feb 17th : “Regarding the Bitcoin Cash Infrastructure Funding Plan, I am certain now that it should be scrapped immediately.” tweet by Mark Lundeberg [source] Feb 19th : “Thoughts on the IFP - A Dev Perspective“ read.cash article by Josh Ellithorpe [source] Feb 20th : “Bitcoin Cash Node” post announcing the new node implementation [source] Feb 20th : First “Bitcoin Cash Developer Meeting” After IFP Proposal [source] Feb 24th : “Flipstarter 500k, 6 independent campaigns” post announcing the goal to “fund the BCH ecosystem with 6 independent campaigns and an overall 500,000 USD target” [source] Feb 27th : BCHN Formally Released [source] Feb 27th : “The BCH difficulty adjustment algorithm is broken. Here's how to fix it.” Video by Jonathan Toomim [source] Mar 3th :” Bitcoin Cash Node 2020: plans for May upgrade and beyond” post by BCHN [source] Mar 4th :”Author of the Bitcoin Cash IFP [Jiang Zhuoer] Vows to Vote Against It, Using Personal Hash in Opposition” [source] Mar 5th :Bitcoin ABC announces their 2020 Business Plan Fundraising for later in march [source] Mar 15th : “EatBCH campaign funded! Next: node campaigns.” campaign funded after 11 hours [source] Mar 30th : Bitcoin ABC 2020 Business Plan [source] $3.3 Million Fundraiser [source] Apr 17th : Five flipstarter node campaign launched. [source] Apr 26th : BCHN flipstarter campaign successfully funded. [source] Apr 27th : VERDE flipstarter campaign successfully funded. [source] May 4th : KNUTH flipstarter campaign successfully funded. [source] May 7th : “BCH DeFi Startup General Protocols Raises Over $1 mil“ [source] May 8th : BCHD flipstarter campaign successfully funded. [source] May 9th : Deadline for node campaigns, ABC flipstarter campaign not funded. [source] May 14th : “With IFP Defeated, Bitcoin ABC, ViaBTC & CoinEX CEO Publicly Consider a Bitcoin Cash Foundation” [source] May 15th : deadline for ABC fundraiser campaign, ends at 55% completed. [source] May 15th : 6th HF network upgrade -> new opcode op_Reversebytes, increased of the chained transaction limit from 25 to 50, and the improved counting of signature operations using the new “Sigchecks” implementation [source] with the “Controversial Funding Plan Rejected by Miners” [source] May 25th : “Announcing the SLP Foundation” [source] Jun 15st : “BCHN lead maintainer report 2020-06-15” announcement to remove the Automatic Replay Protection (a.k.a. the Poison Pill) from BCHN in november [source] Jun 16st : “So [BCHN] is going to fork off from BCH at the next upgrade. Same old story. […]” tweeted Vin Armani [source] Jun 21st : “Why Automatic Replay Protection Exists” post by Shammah Chancellor [source] Jul 7th : “The Popular Stablecoin Tether Is Now Circulating on the Bitcoin Cash Network” [source] Jul 8th : “BCH protocol upgrade proposal: Use ASERT as the new DAA” post by Jonathan Toomim [source] Jul 18th : “$6M Worth of Tether on the Bitcoin Cash Chain Highlights the Benefits of SLP Tokens” [source] Jul 23th : “Announcing the Grasberg DAA” post by Amaury Séchet[source] Jul 24th : “Thoughts on Grasberg DAA” post by Mark Lundeberg [source] Jul 29th : CashFusion security audit has been completed [source] Jul 31st : Electron Cash 4.1.0 release with CashFusion support [source] 4th year, august 2020 – 2021 Aug 1st : “Bitcoin Cash: Scaling the Globe“ Online conference for ForkDay Celebration [source] Aug 2nd : >“Is there going to be a fork between ABC and BCHN?” > “IMO it is very likely. If not in November, then next May.” – Amaury Séchet Aug 3rd : “Dark secrets of the Grasberg DAA” post by Jonathan Toomim [source] Aug 3rd : “Joint Statement On aserti3-2d Algorithm“ post by General Protocols, including Cryptophyl, Read.cash, Software Verde & SpinBCH [source] Aug 3rd : Knuth announces they will be implementing aserti3-2d as DAA for november. [source] Aug 3rd : Amaury rage quit from the developer call [source] Aug 4th : “But why do people care about compensating for historical drift? Seems like a tiny problem and if it's causing this much social discord it seems not even worth bothering to try to fix.” Tweet by Vitalik [source] Aug 5th : “Bitcoin Cash (BCH) November 2020 Upgrade statement” signed by BCHD, electron cash, VERDE, BU members, BCHN developers, Jonathan Toomim, Mark B. Lundeberg and many others [source] Aug 5th : “BCHN FAQ on November 2020 Bitcoin Cash network upgrade” [source] Aug 6th : “Bitcoin ABC’s plan for the November 2020 upgrade” [source] the announcement that they will drop Grasberg in favour of aserti3–2d (ASERT) and will also include FPv4 in which 8% of the blockreward goes to ABC as development funding. Aug 7th : “Joint Statement from BCH Miners regarding Bitcoin ABC and the November 2020 BCH Upgrade.” Read.cash article by asicseer [source] stating “Over recent months, most miners and pools have switched to BCHN, and presently operate a majority of BCH hashrate.” Aug 7th : “Simple Ledger Protocol's Joint Statement Regarding Bitcoin ABC on BCH's November 2020 Upgrade” read.cash post by the SLP-Foundation [source]
Bitcoin works with a Proof-of-Work (PoW) consensus algorithm. This PoW algorithm tends to be very energy-consuming. Indeed, miners need to acquire large and expensive hardware so as to process transactions. Of course, this keeps the network very secure and it is almost impossible to break it. Algorithm N/A Cryptocurrencies work on a consensus algorithm (proof type) that lets those using the network reach an agreement about which transactions can be trusted. Different cryptocurrencies use different proof types with the most widely-used being Proof of Work (PoW). Proof of Stake (PoS) is less commonly used. Proof Type N/A Supply is the amount of cryptocurrency in existence either ... Video - Consensus Algorithms, Blockchain Technology and Bitcoin UCL An academic lecture by Andreas M. Antonopoulos explaining the consensus algorithm, [ September 15, 2020 ] Antonopoulos: Economic Crisis Will Be Terrible For Crypto Basics Of Bitcoin [ September 15, 2020 ] Consensus Algorithms, Blockchain Technology and Bitcoin UCL – by Andreas M. Antonopoulos Bitcoin For Beginners [ September 15, 2020 ] Surat Bitcoin Scam: CID Crime Registered Complain Against BitConnect Co, third Case in Scam Vtv Bitcoin Frauds And Crimes A consensus algorithm, like bitcoin’s proof of work (the one we hear about most often), does two things: it ensures that the next block in a blockchain is the one and only version of the truth ...
How much farther will Bitcoin fall?!? + Vitalik to make 51% attack obsolete! [Crypto News]
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