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拥有77.7%算力的中国将控制比特币网络?纯属无稽之谈
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Topic: 拥有77.7%算力的中国将控制比特币网络?纯属无稽之谈 (Read 49 times)
shenxirrwya1582
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拥有77.7%算力的中国将控制比特币网络?纯属无稽之谈
December 27, 2017, 09:10:34 AM
#1
最近,Stuff.co.nz——新西兰广受欢迎的新闻出版公司声称,中国政府可能会控制比特币网络,并在当地扣押矿工和挖矿设备,从而破坏比特币网络。
这篇报道的作者Vladyslav Makarov写道:“这个国家对比特币网络的影响力是显而易见的。比特币在中国受到过度曝光,政府可能会尝试破坏它。”
无稽之谈
该报告还声称,超过77%的比特币算力集中在中国,因此中国政府有能力在任何时候关停比特币网络。
“‘算力’(支撑比特币网络的计算能力)的77.7%目前集中在中国,这使得该网络脆弱不堪。比特币的大多数专用挖矿硬件都是中国制造的。”
这一报告彻底误解并忽视了比特币矿池的概念,在这个概念中,全球拥有挖矿设备的个人或企业,都可以通过将算力分配给一个矿池,来帮助比特币挖矿作业。
中国比特币矿池中“77%”的算力实际上并不全都属于中国。这一数字是全球许多矿业公司所贡献的累积算力值。来自美国甚至委内瑞拉的一名矿工也可以为中国的矿业提供算力。因此,就像此前有人误认为中国的比特币交易量占据了全球市场的90%那样,声称77%的算力都来自中国是极不准确的。
拥有77.7%算力的中国将控制比特币网络?纯属无稽之谈
根据Blockchain——第二受欢迎的比特币钱包和市场数据提供商,中国的这77%的算力来自于矿池。Antpool、BTC.com、BTC.TOP、ViaBTC和F2Pool都运营着支持来自美国、瑞典、挪威和中国等国的矿工的国际矿池。只有一小部分的算力来自中国大陆。
拥有77.7%算力的中国将控制比特币网络?纯属无稽之谈
中央实体无法控制比特币
如果像中国政府这样的中央实体接管或占领矿池,个别矿工就可以轻而易举地将他们的算力重新分配到其他矿池中。因此,与Makarov的说法相反,中国政府将永远无法控制50%的比特币网络。
所以说Stuff.co.nz和Makarov的报道并不准确,它写道:
“然而,如果一个中央实体控制超过一半以上的处理能力,他们就能操控比特币,使其变得毫无用处。这样的‘审查攻击’会导致交易陷入停顿、重复、或者导致比特币从钱包中消失。如果中国政府控制了中国境内足够多的矿工,那么这些事情便有可能发生。”
事实上,如果诸如此类的事情发生了,个体矿工可以立马选择将他们的算力发送到某个矿池或切换到另一个矿池。矿工们只要转向中国以外的矿池,如Slush Pool和Bitfury,就可以避免这种被中央控制的结果。结论是,任何政府接管比特币网络的概率都是0%,这是比特币诞生的目的之一,成为一个去中心化的、点对点的现金系统、价值储存和交易媒介。
(原标题:拥有全球77.7%算力的中国,是否可以直接控制比特币?)
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