The Level of cash that are circulating in the market and therefore are tradeable with the public. It is actually comparable to checking out shares available on the market (not held & locked by insiders, governments). 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，允许任何人添加数据，但不能删... https://raretrx.org