cover of episode #22 - PoW vs PoS

#22 - PoW vs PoS

2022/8/30
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Terry和王博(Cipher)探讨了PoW和PoS共识机制的优缺点,以及Tornado Cash事件和以太坊即将合并到PoS对区块链行业的影响。王博(Cipher)认为PoW和PoS是两种不同的路线选择,PoW更强调无需许可和抗审查性,而PoS则更注重实用性和效率。他认为PoS在安全性、主观性、Nothing at stake问题、审查等方面存在硬伤,并详细分析了这些问题产生的原因和潜在风险。他还对比了PoW和PoS矿池的差异,指出PoS矿池更容易受到监管的影响,更容易发生审查。针对以太坊合并到PoS后可能面临的协议级审查问题,王博(Cipher)分析了审查可能带来的后果,包括各国政府可能下达封杀令,导致区块链变成华尔街,匿名账户消失,最终滑向联盟链。他还讨论了Vitalik关于审查的回应,并指出其逻辑混乱且不可行。最后,王博(Cipher)还介绍了PoW的几种优化方案,例如PoC和PoW ECO,并分析了这些方案的优缺点和局限性。 Terry主要负责引导话题,并提出一些关键问题,例如PoW和PoS的关系、Tornado Cash事件的影响、协议级审查的含义、社区的应对措施等。他还表达了对PoS审查的担忧,并探讨了PoS可能带来的问题,例如中心化和审查。

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Tornado.cash 被制裁,ETH 即将升级到 PoS, 超过 66% Staking Service 是美国的合规机构。 ETH升级后可能会面临协议级审查吗?如果会,这将意味着什么?如果是 PoW 会不会有什么不同? 带着这些问题,让我们节目的老朋友王博(Cipher) 给你慢慢聊聊 PoW vs PoS 的话题。 Shownotes 播客客户端推荐 Castro (https://castro.fm/) Overcast (https://overcast.fm/) Pocket Casts (https://pocketcasts.com/) U.S. Treasury Sanctions Notorious Virtual Currency Mixer Tornado Cash (https://home.treasury.gov/news/press-releases/jy0916) OFAC (https://home.treasury.gov/policy-issues/office-of-foreign-assets-control-sanctions-programs-and-information) Ethereum The Merge (https://ethereum.org/en/upgrades/merge/) Mining 向左,Staking 向右——公链的两大演进方向与价值分析 (https://talk.nervos.org/t/mining-staking/3028) Poll: If regulators ask you to censor at the ethereum protocol level with your validators will you (https://twitter.com/LefterisJP/status/1558944794658873344) 坎蒂隆效应 (https://baike.baidu.com/item/%E5%9D%8E%E8%92%82%E9%9A%86%E6%95%88%E5%BA%94/9181511) 通往奴役之路 (https://zh.wikipedia.org/wiki/%E9%80%9A%E5%BE%80%E5%A5%B4%E5%BD%B9%E4%B9%8B%E8%B7%AF) Brian Armstrong: … if we did we'd go with B i think… (https://twitter.com/brian_armstrong) MEV (https://ethereum.org/en/developers/docs/mev/) Flashbots (https://github.com/flashbots/pm) Haseeb (https://twitter.com/hosseeb) How DeFi cannibalizes PoS security (https://haseebq.com/how-defi-cannibalizes-pos-security/) Long Range Attack (https://dlt-repo.net/long-range-attack-in-proof-of-stake-pos-blockchains/) Weak Subjectivity (https://academy.binance.com/en/glossary/weak-subjectivity) Nothing-at-stake problem (https://golden.com/wiki/Nothing-at-stake_problem) 托拉斯 (https://zh.wikipedia.org/zh-hant/%E6%89%98%E6%8B%89%E6%96%AF) Proof of Capacity (https://www.investopedia.com/terms/p/proof-capacity-cryptocurrency.asp) Economic Proof of Work (https://eprint.iacr.org/2020/1117) OPPO Watch 3 (https://www.oppo.com/cn/accessories/oppo-watch-3-pro/) Special Guest: 王博.