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zerodot618
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16-ETH-交易树和收据树
编程
2022-12-07 09:21
Words count: 1531
北京大学公开课《区块链技术于应用》笔记,由肖臻老师讲授,主要讲解区块链的基本概念和实现原理。

交易树和收据树

每次发布一个区块时,区块中的交易会形成一颗 Merkle Tree,即交易树。此外,以太坊还添加了一个收据树,每个交易执行完之后形成一个收据,记录交易相关信息。也就是说,交易树和收据树的节点是一一对应的。

由于以太坊智能合约执行较为复杂,通过增加收据树,便于快速查询执行结果。

交易树和收据树都是M(Merkle)PT,而 BTC 中都采用普通的MT(Merkle Tree)。(可能就仅仅是为了三棵树代码可以很好的复用,所以这样设计的)

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