Babbitt News, recently, Song Shuang, assistant researcher of the Institute of World Economics and Politics of the Chinese Academy of Social Sciences, said in an interview that at present, there is no consensus and standard for the design of the blockchain technology infrastructure. In terms of solving some problems, each institution or enterprise has its own technical preferences. Blockchain information is heavily recorded and requires a large amount of storage space. In the public chain, since each node has to record information, the transaction time is relatively slow, and the number of transactions processed per unit time and the number of transactions processed by WeChat and Alipay are several orders of magnitude. Blockchain technology can solve privacy problems, and privacy protection needs to be considered on the premise of meeting regulatory requirements.