,其摘要就会跟下一页上记录的摘要不匹配,这时候就要连带修改下一页的内容,这就进一步导致了下一页的摘要与下下页的记录不匹配。如此循环,一个交易的篡改会导致后续所有区块摘要的修改,考虑到还要让所有人承认这些改变,这将是一个工作量巨大到近乎不可能完成的工作。正是从这个角度看,区块链具有不可篡改的特性。
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