According to the website of the Ministry of Economy, Trade and Industry of Japan, on April 23, the report released by the Ministry of Economy, Trade and Industry pointed out that in the field of “degree, resume management”, blockchain technology can be used to “correctly verify any issuer who has ceased to exist in the past. The certificate issued is very difficult to do under the current system. In the field of “research data credibility guarantee”, some organizations at home and abroad are running a centralized system with certain degree of flexibility. As long as these systems have cost advantages and normal functions, there is no need to force blockchain technology. .