Bitcoin, the 1st copyright, was introduced in 2009 as an alternative form of decentralized and electronic revenue. Given that then, individuals have also established cryptocurrencies that serve other functions or are designed for particular varieties of transactions. 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。... https://fann948dif9.azuria-wiki.com/user