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Author Topic: GAVIN ANDRESEN:“比特币”的技术定义  (Read 149 times)
snorkyyo
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February 08, 2017, 10:42:19 AM
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工程师们总是会偏向于一叶障目,他们被困于细节当中,却失去了更大的愿景。

当他们在优化某些东西,以使它更快时,我经常会看到这类情况的发生(我自个也会犯这样的错误)。他们的出发点是好的,“ 搅动snarks的时间要花掉11秒,其中有七秒时间只是用来预计算eigenwidgets。”。



所以,他们会花一天的时间,然后去预计算这个eigenwidgets,使得它快10倍。

然后他们会意识到,这只需要一个小小的调整,一个很漂亮的算法,以及两百行的代码,他们就可以让它变快100倍!

所以他们花了几天的时间来使snark的动作变快了0.63秒(从4.7秒降到了4.07秒),而不是移动到下一个性能瓶颈。他们可以专注于一件小事(程序的性能!或安全!或去中心化!或兼容性),却可以忽略掉其他一切。

我想提出这个大的愿景,来给“比特币”一个技术定义:

“比特币”是一种未花费(not-previously-spent)的账本,有效签名过的交易,会包含在起始区块为创世块(hash 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f)的区块链当中,其遵循着2100万的币总量计划,并拥有最具累积性的 双SHA256工作量证明机制 (double-SHA256-proof-of-work)[1]。
如果我们能同意,这就是我们所说的比特币的定义,那我认为,很多关于“树”的无意义争论,我们就可以避免掉。

多数算力会接受新类型的漂亮交易吗?是的,它仍然是比特币。不同分类的merkle树包含在区块头当中?是的,仍然是比特币。 用麻烦的重定向代码来修复缓冲溢出错误(off-by-one error)? 是的,它仍然是比特币.

会有少数算力的链分支吗?不,这不是比特币。改变工作量证明?不,这不是比特币。大多数算力决定1%的通胀是一个好主意吗?不,这也不是比特币。

会有更好的技术定义,来判断它是否应被认为是“比特币”吗?
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gorgiers
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February 08, 2017, 02:49:28 PM
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这就有点深奥了
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February 09, 2017, 12:44:10 PM
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我有点看不懂啊!
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