Blockchain can be divided into three types according to the degree of publicity and whether there is an access system.
Is blockchain open and transparent? Blockchain is certainly open and transparent, but blockchain also has its limitations. At present, the entry threshold for each node is getting higher and higher, and it is difficult for individual users to become nodes. The number of global nodes in popular blockchains may be tens of thousands or even thousands, but most nodes remain in the hands of large investors. , the real voice of the masses is relatively small. We must wait for further technological advancements and revolutionary breakthroughs in fields such as…