The value of block chain has been developed for many years as a form of "Internet plus database". In the mode of "Internet plus database", "+" to a certain extent, to the level of the private chain. Then each private chain is merged. When the private chain has more commonality and exchangeability, it becomes a public chain. At present, the biggest constraint to the development of blockchain lies in the inconsistency of data in each block. Many Internet are local, and internal and external net...