What were the main factors that led to the creation of Ethereum Classic and Bitcoin Cash?

The creation of Ethereum Classic and Bitcoin Cash was primarily driven by disagreements within the cryptocurrency and blockchain communities regarding 'upgrades'.Ethereum Classic emerged from a split in the Ethereum community over how to handle the theft of funds from The DAO, a decentralized funding platform. A group of developers opposed rolling back transactions, leading them to create their own blockchain, Ethereum Classic (ETC).Bitcoin Cash was born out of a disagreement about Bitcoin's scalability. In 2017, Bitmain proposed a solution called UASF (User-Activated Soft Fork) as an 'emergency response' to the SegWit debate. This led to the creation of Bitcoin Cash (BCH), which has a larger block size and does not support SegWit.These events serve as examples of how community decisions can lead to the division of blockchain networks, creating new cryptocurrencies with their own unique features and characteristics.

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Izabelle Santocchi 🧿🐚 2025-02-12 08:11

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在数字货币及区块链领域内，当社区内开发者对“升级”存在意见分歧时，便有出现分叉，即区块链分裂的可能。Ethereum Classic和Bitcoin Cash就是在这样的背景下诞生的。The DAO事件是Ethereum Classic诞生的主要原因。2016年5月，The DAO正式发布，并筹集到超过1.6亿美元的资金。然而，黑客利用智能合约漏洞，把The DAO筹集到的价值五千万美元的ETH全部转走。为了挽回投资者的损失，以太坊社区投票决定通过修改以太坊代码的方式来回滚包括被黑客占有的所有以太币。不过有一部分人认为，以太坊这种做法违背了区块链去中心化及不可篡改的原则，为此坚持在以太坊原链上挖矿，从而分裂为两条区块链;一条是反对回滚交易的以太坊经典(ETC)，一条是已经回滚交易的以太坊(ETH)。BCH的诞生则与比特币扩容争端有关，是2017年6月比特大陆针对UASF提出的UAHF(用户激活硬分叉)“紧急应对措施”。按照比特大陆当时的说法，他们会投入自己的算力硬分叉出一条不含SegWit、区块大小扩容至8MB的区块链——BCH。而北京时间8月2日凌晨两点多Viabtc挖出了第一个Bitcoin Cash块(区块高度478559)，则标志着BCH区块链与主链正式分离。有了这些前车之鉴，去年11月SegWit2x宣布取消后，社区内涌现出大量的分裂币，比如比特币黄金、比特币钻石、闪电比特币、超级比特币等。而近日为了抵制ASIC挖矿算法，门罗币于4月6日进行硬分叉以修改核心共识算法，并分裂出XMR及XMC两条区块链。

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