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Vitalik发文探讨为以太坊用户提供更快交易确认时间的方法

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2024-07-01 00:35:51
以太坊联合创始人Vitalik Buterin 发文《深入 slot-and-epoch 构架,为以太坊用户提供更快交易确认时间的方法》。文章称,尽管与五年前相比,得益于 EIP-1559 与合并后的稳定区块时间,以太坊 L1 上的交易确认时间已缩短至 5-20 秒,与信用卡支付体验相当,但进一步缩减延迟仍具重要价值,尤其是对于那些要求几百毫秒甚至更少延迟的应用。
论文中,Buterin 介绍了以太坊为加快交易确认速度所探索的实用选项,其中重点阐述了现有技术中的单时隙确定性(single-slot finality)。当前,以太坊的 Gasper 共识机制采用 slot-and-epoch 架构,但此机制复杂且终结性确认时间过长(12.8 分钟)。SSF 则通过类似 Tendermint 的机制,使区块在下一区块生成前即被终结,同时保留了不活跃泄露机制,确保链的稳定运行和恢复能力。SSF 的主要挑战在于它会给链带来很大的负载,但新提案如 Orbit SSF 正致力于缓解此问题。此外,论文还探讨了 rollup 预确认和基于预确认的机制。
Buterin 强调,slot-and-epoch 架构显然是正确的,但并非所有 slot-and-epoch 架构都平等。他提倡更全面地探索设计空间,特别是那些在这两种机制之间有更强关注点分离的选项,以降低交易确认时间,提升用户体验。
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