How does blockchain work?Blockchain records digital information and distributes it across the network without changing it. The information is distributed among many users and stored in an immutable, permanent ledger that can't be changed or destroyed. That's why blockchain is also called "Distributed Ledger Technology" or DLT.
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Российские отели начнут работать по новому стандарту для иностранных гостейРИА Новости: Отели в России начнут работать по новому стандарту с 1 июня
生成完成后，我们就可以直接使用这些实体类进行数据序列化和反序列化操作：，更多细节参见91视频