Just about every grouping of transactions is turned into a block and chained to the present ledger. The moment a block is added it cannot be reversed or altered — Which is the reason men and women explain blockchains as "immutable." 区块链是一个交易数据库，在网络上多台电脑之间更新和共享。每次添加一组新交易时，就称其为“区块”，这也是区块链名称的由来。以太坊这样的公开区块链，允许任何人添... https://dominickhjkii.nizarblog.com/28919657/manual-article-review-is-required-for-this-article