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是时候讨论这个可能成为以太坊救世主的新模型 Danksharding 了
$ I5 G# ?4 F" n% o9 oDanksharding 的名字来自它的创造者兼以太坊研究员:Dankrad Feist。名称的更改旨在表明从传统分片系统向这种系统的范式转变。我们将 Danksharding 称呼为 "可扩展性杀手" / ^4 s0 j: j% J4 L% |( E" l, C
以太坊走错路了?/ `8 C( G' p& Q* U
这并不是说 Vitalik 和他的团队错了,事实是:今天的大多数 L1 都趋向于迅速提高中心化水平(也就是错误的方式)。这是系统中被称为矿工可提取价值 (MEV) 的深层缺陷的结果。事实上,就在去年,专家们还警告说,它有可能杀死整个网络 $ r; J& u6 I4 P4 D* L

! p4 S) F" {% S0 ?4 e" y4 GMEV 的存在是由于低效率导致了 DEX 套利机器人跑在用户前面。通过 Priority-Gas-Auction 出售有价值的区块空间,矿工可以通过收取过高的交易费用来获利。矿工也可以重新排序或审查交易,以便从链上清算中获利,或为自己套利。这种为优先交易支付的高额手续费对整个以太坊安全基础设施构成了系统性风险,各种解决方案已被理论化,但大多数都是链外解决方案,这不可避免地导致了更多的中心化。如果你在想,也许 PoS 的更新会有帮助?不是的。事实上,许多人认为它只是加剧了这个问题,带来了更多的中心化
; B3 c( J) d0 \% f% Q3 r# J但是,不要害怕!黎明前总是最黑暗的,我真的相信以太坊有更好的可扩展性路线图。这一切都要归功于 Danksharding,所以让我们深入了解一下 0 {! U. P/ v6 E; R
解决方案, M8 Q T/ i; \' H
在理解 Danksharding 之前,最好了解传统分片的最新情况。Danksharding 的设计是为了规避 MEV,最大限度地提高去中心化和安全性。这是通过提议者-建设者分离(PBS)和 crList 来实现的 & H) |% y) L8 _( U( o
如前所述,在传统的区块链中,区块提议者(即:矿工)可以通过查看哪些交易支付的费用最高来挑选将哪些交易纳入区块。PBS 提案的通过将区块提议者分成两个角色来解决这个问题:建设者和提议者。建设者代表一个全新的角色类别,他们从提议者那里获得交易列表,该列表被称为 crList,其中规定了建设者必须包括哪些交易。建设者可以对交易进行重新排序,使 MEV 最大化,而不需要审查任何东西,这要归功于 crList(使一切更快)。这从本质上优化了矿工的 MEV 利益结构,同时消除了用户的 MEV 障碍
3 B9 j; g9 C. {! Q6 Z : ?2 F; F. {' S1 ^9 Y4 m
通过上面的图片,我们看到由于 Danksharding,执行块和分片块现在构建在一起,导致所有的验证数据都由 Rollup 完成。这意味着分片区块确认没有延迟,数据的复制不会发生,分片区块确认也不需要被跟踪,L1 立即就能看到数据。由于没有单独的交易分片,以太坊主网本身成为一个统一的结算和数据可用层,导致吞吐量可能增加约 6400 倍(Gas 费用也会降低) & b1 v6 i2 d5 V$ {% _6 g6 M$ `
但等等:Danksharding 将导致执行链和分片之间更紧密的结合,允许更简单的 Rollup 设计(对开发者来说是好事)。现在 ZK-Rollup 和 L1 之间可以进行同步(如在同一区块中确认),这打开了许多的可能性,比如:Ethereum 执行层可以先实施 Optimistic Rollup,然后再实施 |
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