According to the legal network news, Hu Jiyu, professor of the Department of Finance of the School of Business of China University of Political Science and Law, director of the blockchain financial rule of law research center, said in an interview that blockchain technology has a unique "gene advantage" for solving the existing problems of notarization. ". The public certificate Hash encryption effectively guarantees the authenticity of the notarized documents; the time stamp and the non-tamperable features effectively ensure the cross-regional and strong time-effects in digital economic transactions. Professor Hu Jiyu went on to say that the blockchain technology is not only the result of the electronic file, but also the process link and user information, so it is more tamper-proof. Moreover, the tamper resistance of blockchain technology is based on collective maintenance. Unlike cryptography, after using blockchain technology, unless all nodes are modified, the change of the notarization certificate on the individual node is Meaningless.