Bitcoin Cash ABC, The Twice-Forked Coin

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Bitcoin Cash ABC vs. Bitcoin Cash SV – Examining the Bitcoin Cash Hash War

The Bitcoin Cash hard-fork on November 15, 2020, resulted in two coins. Now, many exchanges recognize Bitcoin Cash ABC as Bitcoin Cash with a separate listing for Bitcoin SV. Let’s take a look at how the Bitcoin Cash ‘hash war’ started and its implications moving forward.

What is Bitcoin Cash, Where Did it Come From?

Bitcoin Cash (BCH) came into existence in August 2020, but the fundamental argument behind its emergence traces back to the origins of Bitcoin (BTC) itself – the scalability debate. It was the inability to come to a consensus over increasing the block size limit that ultimately made ‘Bitcoin Cash’ fork off the Bitcoin network.

As early as April 2009, the block size limit already formed a debating point on the Bitcointalk online forum. At the time, with Bitcoin still in its infancy, the 1MB block size limit meant that the blockchain would have problems scaling once the network effect grew (more nodes on the blockchain).

However, throughout the early days, developers in the community like Jeff Garzik, Gavin Andresen, Mike Hearn, and others, couldn’t seem to reach a consensus. Thus, by the time Bitcoin achieved mainstream status, the 1MB “attributed” to Satoshi Nakamoto block size limit was considered “de facto.” Nevertheless, proponents of the 1MB limit argue that larger blocks would ultimately prevent individuals from running their own full nodes as only large-scale datacenter would be able to verify transactions in the future, resulting in centralization of the network.

Fast forward to 2020 with the BTC price and popularity growing; the network began to experience transaction backlogs. Around May 2020, some users complained of having to wait several days before their transactions could be confirmed on the network.

Preference was given to transactions with higher fees. Thus, BTC appeared ill-suited for microtransactions. This situation caused serious debates within the community with two main approaches suggested – Bitcoin Unlimited and Segregated Witness (SegWit).

Bitcoin Unlimited meant completely removing the block size limit. It also meant that the network would have to hard-fork, which is considered to be a riskier approach since the software client would no longer be backward compatible with older versions.

Miners like Bitmain preferred raising the block size limit as SegWit (Segregated witness), would expose the mining giant’s covert ASIC-boosting algorithms. However, those in opposition argued that the move would centralize Bitcoin mining by forcing out smaller, independent miners.

It must also be noted that SegWit also raised the block size limit, or to be more specific the ‘block weight’ to 4MB. In fact, the blocks mined by the Bitcoin network today are regularly over 1MB compared to Bitcoin Cash whose mined blocks are much smaller on average.

2020 Hard Fork – Fundamental Differences

With SegWit, part of the transaction data is stored outside the blockchain creating room for more transactions inside a single block. Proponents argued that is a safer approach (compared to a hard-fork) that also increases throughput capacity. Critics, however, described the approach as only a palliative measure that did little to solve the core problem.

On August 1, 2020, the majority of Bitcoin miners signaled for the implementation of SegWit2x – an agreement among predominant Bitcoin companies (BitPay, Coinbase etc.) to implement SegWit and later raise the block size limit to 2MB (hence the “2x”).

However, a User Activate Soft Fork (UASF) eventually proved that Bitcoin full-nodes (i.e. users) are ultimately in control since it is they who actually verify and/or reject transactions based on the Bitcoin protocol.

Nevertheless, Bitcoin Cash developers elected to increase the block size limit to 8MB meaning more transactions could fit into a single block. This, however, went against the Bitcoin protocol as the vast majority of nodes supported SegWit while leaving the 1MB limit intact.

Bitcoin Cash forked away from the original Bitcoin blockchain on August 1, 2020, implemented replay protection, and quickly entered the top-ten cryptocurrency rankings based on market capitalization. This also meant that bitcoin holders also received an equivalent amount of Bitcoin Cash (BCH).

The opposing views that resulted in the 2020 Bitcoin Cash hard fork hinged on two distinct economic classifications – Bitcoin as an investment asset and Bitcoin as a payment system – or at least which should be prioritized first. The BCH brigade maintained that Satoshi’s vision was that Bitcoin must become a cheaper and quicker alternative to fiat payments despite centralization concerns.

One Year After – More Block Size Limit Issues

On August 20, 2020, Bitcoin Cash Adjustable Blocksize Cap (Bitcoin Cash ABC, BCH ABC), which at the time was the largest software client for the blockchain, announced a hard fork slated for November 15, 2020. A part of the announcement read:

A new opcode called OP_CHECKDATASIG that improves the BCH scripting language to permit the validation of messages from outside the blockchain.

The introduction of canonical transaction ordering.

Several minor technical fixes and improvements.

This ‘upgrade’ had two main goals, the introduction of non-cash transactions like smart contracts and oracle prediction services on the blockchain, as well as canonical transaction ordering to replace topological transaction ordering.

Again, not everyone supported the changes in the source code with opponents criticizing the prioritization of non-cash transactions in a blockchain that they felt ought to deal with payments only. With the emergence of two opposing views, it appeared that another blockchain split was on the horizon.

Bitcoin Cash Civil War: Roger Ver/Jihan Wu vs. Craig Wright/Calvin Ayre

Dr. Craig Wright and Calvin Ayre were among the most prominent opponents of the protocol updates proposed by BCH ABC.

Craig Wright earned potentially eternal notoriety in the cryptocurrency industry when he claimed to Bitcoin creator – Satoshi Nakamoto. Calvin Ayre, on the other hand, is a billionaire and the CEO of Coingeek, one of the major BCH mining pools.

For Ayre, his miners don’t support canonical ordering of transactions and so, opposed the protocol change. The Coingeek CEO also called for increasing the block size limit to 128MB. Wright for his part didn’t see the value of incorporating smart contracts and oracles into the blockchain.

Roger Ver and Jihan Wu were on the other side of the conflict. Roger Ver is the owner of and was one of the first Bitcoin evangelists who turned into an apostle of Bitcoin Cash. Roger Ver has been heavily criticized for using his platform to trick people into thinking Bitcoin Cash is the “original Bitcoin” while labeling Bitcoin (BTC) as ‘Bitcoin Core’ – the name of the most popular Bitcoin software client.

Jihan Wu is the co-founder of Bitmain, which apart from being the biggest Bitcoin mining hardware manufacturer, also owns and Antpool, which control a significant portion of the Bitcoin hash rate.

As November 15, 2020, drew closer, so did the vitriol which became apparent all over cryptocurrency and blockchain news media. The situation was rife with the usual mix of name calling and outright threats. Wu, the co-founder of Bitmain reported called Wright ‘Fake Satoshi,’ referring to the latter’s claim of being the Bitcoin creator. They also blocked or unfollowed opposing actors on several social media platforms.

With the Wright/Ayre coalition insistent on their rejection of BCH ABC, nChain released Bitcoin Satoshi’s Vision (Bitcoin SV, BSV). Wright argued that Bitcoin SV embodied Nakamoto’s original vision for Bitcoin. The company created an SV mining pool with miners onboarded in September.

Hashing Contest

For the anti-BCH ABC brigade, the SV client established Bitcoin Cash as a payment protocol. With such heavyweight owners of mining pools backing two different Bitcoin Cash clients, the ‘hash wars’ that followed saw both factions vying for the right to claim the BCH ticker post-hard fork.

The D-day – November 15 finally arrived, and the hard-fork resulted in a split, resulting in BCH ABC and BCHSV. Thus, commenced the next stage of the saga; “The Hash Wars – ABC vs. SV.” Both parties, desperate to exert dominance over the other by computing power, concentrated the bulk of their miners to their respective chains.

The heated contest even saw Roger Ver direct pool hash power from BTC mining to BCH mining to give his side the edge. The goal – win the hash race by becoming the longest chain, i.e., producing more blocks.

These actions were not without consequences, however, as it soon became apparent that there would be losses on both sides. Barely a week after the hash rate war, Bitcoinist reported that both sides had burned $12 million to sustain their mining operations, which were unprofitable as the price of BCH fell to record lows.

The BTC price also tanked along with the entire cryptocurrency market falling to its lowest level in over a year by market cap. Some commentators attributed the price crash to these so-called ‘hash wars’ particularly after Craig Wright threatened that he’d sell a lot of BTC to fund mining costs.

According to Coin Dance, a cryptocurrency data aggregator platform, the ABC faction continues to push ahead of SV based on hashing power – total Proof of Work (PoW) post-hard fork. Major cryptocurrency exchange platforms like Coinbase, Bittrex, Bitstamp, and Kraken began to assign the BCH ticker to the ABC chain.

What Happens Next?

Many exchanges halted trading on BCH altogether during the onset of the war as no replay protection was implemented. Without replay protection, a transaction would be valid on both chains resulting in chaos and disruption. As it became clear that ABC was ‘winning,’ cryptocurrency hardware wallet, Ledger resumed support for BCH. The hardware wallet company, however, didn’t add support for BSV to criticism from SV supporters who claimed that these companies were choosing favorites despite SV having a higher hash rate (from time to time).

Then Ayre came out on November 23 stating that SV was ready to put an end to the conflict by adding replay protection, which would prevent double-spending on both chains. With this move, those on the fence had to now ‘pick a side,’ as the cryptocurrency landscape now had two versions of Bitcoin Cash.

On CoinMarketCap, the ABC chain is now recognized as Bitcoin Cash (BCH) and Craig Wright’s chain as Bitcoin Cash SV (BSV) 0 0 , thought Ayre and Wright maintain that BSV is the ‘original Bitcoin.’

While the ABC vs. SV hash war may be coming to a close, there isn’t any indication of a cessation of hostilities between both camps. Presently, BCH is only marginally above Stellar based on market cap.

One critical event to look out for is the next scheduled Bitcoin Cash hard-fork ‘upgrade.’ It will be interesting to see if the Bitcoin Cash community keeps this strategy moving forward, however. As we have seen, regularly scheduled hard-forks may not always be the safest approach to ‘upgrading’ the protocol.

What do you expect will happen next in the Bitcoin Cash hard fork saga? Let us know your thoughts in the comment section below.

Post BCH Hard Fork Scenes: Bitcoin Cash ABC vs Bitcoin Cash SV

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As both camps engage in the war for gaining dominance over the hash power, here a look into how things have turned so far.

Last week on November 15th, the long going war between two camps ultimately resulted in the Bitcoin Cash hard fork. The BCH blockchain split into two different versions: Bitcoin Cash ABC and Bitcoin Cash SV. Both the camps have engaged in an intense battle to win the hash war ever since the fork went through. Before taking a look at the current scenario of hash war, let’s check differences between the two versions.

Bitcoin Cash ABC v/s Bitcoin Cash SV

  • Bitcoin Cash ABC (Adjustable Blocksize Cap): The supporters of BCHABC want to preserve the functions of the original Bitcoin Cash network as opposed to any radical changes. However, the new client certainly overcomes the technical limitations of the BCH network. As the name implies, Bitcoin AC allows the node operator can adjust their block size. The supporters of Bitcoin ABC propose a simple two-pronged approach to scaling that basically emphasizes on improving the software.1. Remove immediate implementation bottlenecks to increasing the block size limit.
    2. Lay the technical groundwork for massive future on-chain scaling.

The Bitcoin ABC supporters say that the BCH’s existing structure is “sound,” and “does not need any radical change”. The BCHABC, however, will have an additional code for interoperability between cryptocurrencies.

The Bitcoin ABC community is led by Roger Ver and Bitmain co-founder Jihan Wu. The mining pools supporting Bitcoin ABC are, Antpool, and The block size for Bitcoin ABC network is 32MB.

  • Bitcoin Cash Satoshi Version: The supporters of Bitcoin SV propose some radical changes to the network while attempting to restore “the original Satoshi protocol”. As a result, Bitcoin SV proposes of changing the existing BCH network structure. Firstly, the major change is increasing the block size from 32MB to a larger 128MB.
    Furthermore, the protocol overhaul also focuses on easing up the transition to smart contracts. Supporters of Bitcoin SV include the controversial and self-acclaimed Satoshi Nakamoto, Craig Wright. Joining his camp are Jimmy Nyugen and Calvin Ayre. The mining pools supporting the Bitcoin SV version include Coingeek and
  • The Hash War Continues

    Just after the hard fork, both the camps engaged to gain dominance over the network by winning the hash power. The latest graph from CoinDance shows that both Bitcoin ABC leads Bitcoin SV in the hash rate war. Moreover, the data says that additional stats show that Bitcoin ABC has 61% hash rate while Bitcoin SV has 39%. Actually, soon as the hard fork was live, Bitcoin ABC took the early lead in block mining. Popular crypto analyst and investors Joseph Young soon tweeted regarding the same

    Bitcoin Cash (ABC) ahead, more hash power, more activity, higher price. 4x higher price (margin).

    Seems like a win for BCH. Jihan Wu and Chinese miners not even needed. Certainly not enough for a 51% attack on BCH. BSV nodes reportedly crashing.

    Bitcoin SV supporters Craig Wright made some aggressive statements while even vowing to destroy the ABC network.

    Not a day, not weeks, not a burst.

    Continuous competition until one dies as we do not stop

    However, Bitcoin ABC supporter and Bitmain co-founder Jihan Wu has responded to Wright’s threat. Wu has made it absolutely clear that he won’t be giving up on the ongoing hash war. On the Reddit forum, Wu said:

    “I have no intention to start a has war with [Craig Wright], because if I do – by relocating hash power from BTC mining to BCH mining – BTC price will dump below yearly support; it may even breech $5,000. But since [Craig Wright] is relentless, I am all in to fight till death!”

    In a bid to win the hash war, both the camps have engaged in mining empty blocks. Some experts have suggested that this could lead to detrimental effects even on the winning chain in the long-term.

    Moreover, over the last week, there’s a huge transfer of mining power from BTC to BCH. This could possibly be one of the reasons for the Bitcoin’s major price fall last week.

    Exchanges Waiting for the Dust to Settle

    A number of popular exchanges like Poloniex, Bitstamp, and Coinbase are not taking wither sides and rather waiting for the dust to settle. However, for a few days, nearly 10 other exchanges said that they would use the “BCH” ticker for the BCH ABC version.

    Binance broke the early silence itself on November 16th. The crypto trading platform said that it would allow both – Bitcoin ABC and Bitcoin SV while distributing its customers in 1:1 ratio.

    It would be interesting to see as to how things change going further and will ultimately don the crown.

    Bhushan is a FinTech enthusiast and holds a good flair in understanding financial markets. His interest in economics and finance draw his attention towards the new emerging Blockchain Technology and Cryptocurrency markets. He is continuously in a learning process and keeps himself motivated by sharing his acquired knowledge. In free time he reads thriller fictions novels and sometimes explore his culinary skills.

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    Раскола не будет: Bitcoin SV проиграл в хардфорке Bitcoin Cash [BCH]

    Криптовалютное сообщество испытало облегчение после того, как конфликтный форк Bitcoin Cash [BCH] закончился: предложение Bitcoin ABC, поддержанное Роджером Вером (Roger Ver), победило Bitcoin SV от Крейга Райта (Craig Wright). На биржах возобновляются торги BCH, ранее остановленные на время форка.

    Хешрейт говорит о победе ABC

    На момент написания по объему вычислительной мощности (хешрейту) лидирует предложение Bitcoin ABC, новой сетью уже добыты 52 блока. А по правилу хардфорка основной становится более мощная цепь.

    Это подтвердил криптовалютный аналитик Джозеф Янг:

    ABC лидирует: больше вычислительной мощности, выше цена, выше активность. Похоже, победа за BCH и даже не понадобился Джихан Ву (глава Bitmain) с китайскими майнерами. У SV недостаточно мощностей для «атаки 51%», узлы этой сети останавливаются. «Faketoshi» проиграл, сообщество победило.

    Но самопровозглашённый Сатоши Накамото по имени Крейг Райт, стоящий за предложением SV, не сдаётся: он написал о том, что это будет долгая борьба:

    Соревнование хэшей это марафон, а не спринт. Мы и не рассчитывали на быструю победу.

    Сейчас цены на валюту Bitcoin Cash сильно отличаются от биржи к бирже, одни площадки продолжают торговать ей, другие пока не запустили операции.

    Держатели BCH получили валюту обеих сетей

    На крупной бирже Poloniex, которая ранее запустила торговлю обеими новыми валютами (ABC и SV), теперь прекращены операции с Bitcoin Cash, так как этой сети более не существует. Все держатели её валюты получили эквивалент в обеих новых криптовалютах по курсу 1 к 1. Это значит, что за каждый BCH на счету пользователи получат 1 BCH ABC и 1 BCH SV.

    Ранее представители Poloniex писали:

    Наша площадка планирует работать с обеими новыми сетями до тех пор, пока они будут отвечать соответствующим техническим и экономическим требованиям. Если в работающем состоянии останется только одна цепь, она получит тикер BCH.

    Клиенты Binance получили новую криптовалюту по такому же принципу, как и на Poloniex: обмен прошёл по курсу 1 к 1. Депозиты и снятия пока не доступны, они должны возобновиться сегодня. Но Чанпен Чжао сообщил, что названия не будут меняться, скорее всего, криптовалюта Bitcoin Cash теперь будет торговаться как BCH ABC. Также основатель Binance выразил радость по поводу окончания истории с разделением сети и рассказал, что ненавидит форки.

    Другой политики придерживается биржа Kraken: её команда решила поддерживать только ABC, но оставила за собой право изменить эту политику в будущем.

    В криптовалютном сообществе также рады окончанию истории с Bitcoin Cash, большинство поддерживало обновление по предложению Роджера Вера:

    Вот и хорошо, то, что предлагал Райт, не должно было стать полноценным BCH, рад, что Вер и сообщество сохранили контроль над сетью. Теперь буду надеяться, что котировки вернутся к прежним уровням.

    Было бы забавно если бы в итоге появились две равноценных сети, и все получили бы два вида дорогой криптовалюты. Хотя сеть по предложению Райта была бы не очень.

    Bitcoin ABC готова на «техническое самоубийство», чтобы защитить свой вариант хардфорка Bitcoin Cash от «атаки 51» Bitcoin SV

    Основной разработчики Bitcoin ABC Амори Сечет поставил сообщество в известность, что разослал по надежным пулам готовый патч, который может быть запущен, если форк подвергнется атаке 51 со стороны пулов Крейга Райта.

    Программа вносит изменения в алгоритм майнинга SHA-256 и представляет собой защиту от ASIC-добычи, навсегда «отделяя» цепь от «материнской» Bitcoin Cash. Это самоубийственный вариант по следующим причинам:

    • Сложности добычи монеты с алгоритмов PoW и высоким хешрейтом на видеокартах.
    • Отсутствию начисления дополнительных монет после хардфорка.
    • Потери поддержки значительной части современных пулов, добывающих Bitcoin и форки.

    Новые шахты давно укомплектованы ASIC-чипами, производительность которых несопоставима с фермами на GPU, поэтому последствия такого решения неизвестны и самое главное необратимы.

    Очевидно команде Bitcoin ABC нечего терять, ведь по последним раскладам на завтрашнее число Крейг Райт анонсировал 85% поддержки майнинговых пулов. Хардфорку Bitcoin SV не хватает 10%, чтобы уничтожить конкурирующую версию, которые им не добыть, так как эта часть хешрейта принадлежит ABC.

    Победа Крейга Райта станет доказательством ненадежности и централизации криптовалюты, потому что хардфорк принесет сети Bitcoin Cash увеличение блока. Такие изменение можно назвать «пятым колесом телеги», так как объем транзакций только один раз полностью заполнил текущий размер блока.

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