摘要：2. Data structure blockchain = block + hash pointers 区块链的性质就是用hash pointers 代替普通的指针的链表 block hash merkle tree:交易记录用merkle tree 储存 merkle tree 的叶子节点全是t 阅读全文

摘要：Bitcoin Cryptography Bitcoin = Hash + signature Cryptographic hash function: 1.collision resistance 抗hash碰撞（冲突）: hash碰撞: \[ \forall x, \exists y, x \n 阅读全文