March 2022
Intermediate to advanced
293 pages
5h 31m
Chinese
Content preview from 精通区块链
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分叉和竞争链 ｜ 77
挖矿硬件制造商比特大陆（
Bitmain
）指定了将社区分叉成两个不同区块链的
计划。矿池
ViaBTC
创建了“比特币现金”来反映大区块的想法，即更大区
块使新的加密货币像现金一样具有更高的消费性，且新加密货币的交易手续
费更低，确认速度更快。
2017
年
8
月
1
日发生争议性硬分叉并诞生了比特币现金。新链的区块大小为
8 MB
，每个区块可以容量的交易量大约是比特币的
8
倍。新链保留了比特币
大多数其他特性，包括
2100
万加密货币硬上线和使用
SHA-256
的工作量证
明。此外，任何在争议性分叉时持有比特币的人都会获得等额的比特币现金。
2018
年
5
月份为了适应更多交易和功能，比特币现金的区块大小由
8MB
增
加到
32MB
。虽然比特币现金没能达到它的许多支持者预期的那样有吸引力，
但无可否认比特币现金依然是最成功的比特币软件分叉。
分叉的分叉：比特币
SV
不久之后，比特币现金本身迎来了另一场关于扩容的争论。
2018
年
11
月，比特币现金网络一分为二，分叉为两条独立的链，分别称为比特
币现金和比特币
SV
（
Satoshi's Vision
）。这次争论与以往有些不同。
一派称为
Bitcoin ABC
的团队，
ABC
代表块大小可调节（
adjustable
blocksize cap
），他们希望能够自由改变块大小并实现智能合约（
smart
contract
），这种可编程功能存在与以太坊和其他“
2.0
”竞 争 链（
altchain
）
上（见下一节）。另一派
SV
团队希望远离智能合约以创建一个更稳定
的加密货币，他们声称这才是中本聪的初衷。 ...
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