Implementation Of Key Technology Of A Credible Blockchain-based Degree Query System

Under the tide of economic globalization,international competition is intensifying.Scientific and technological strength is a national development priority.This leads to the attention of erudite scholars with innovative awareness and innovative ability.The benefits of a high degree are so predictable that there are more and more degree frauds at home and abroad.The number of college graduates has risen sharply with the expansion of the enrollment of colleges and universities across the country.The sheer number of graduates also makes it difficult to verify the degree information.At present,China adopts the unified electronic registration mechanism,which run and maintained by the "Xuexin".However,the phenomenon of degree fraud still appears.With the emergence of new technologies-the "Blockchain",its decentralization and distrust have gained a lot of attention.Based on blockchain's good performance on data security,this paper designed a blockchain-based credible degree query system,then designed and implemented its key technology.The first was to design a P2P networks refer to Bitcoin core.The existing consensus algorithm has been modified,so that it could meet the specific application requirements of the degree publication.Then the structure of data such as transactions and blocks in the system have been redesigned.According to the actual provisions,this paper proposed a degree data representation specification which is conducive to share.Finally,based on the REST principle,a RESTful degree query API was designed.This paper implemented the key technology of the system by using Python.Set up a simulation blockchain network using lab servers.Tested the system in the simulation blockehain network.Results showed that the blockchain layer matched designed features.The operation in the upper interface could interact with the underlying layer and the user,and could complete the student registration,release degree and degree callback.In this paper,the data query interface could response to the compliance degree query request and obtain the corresponding data on blockchain.