Title: EduChain: A Blockchain-Based Education Data Management System
Abstract: The current centralized educational data management system results in problems like malicious tampering, low cost of diploma fabrication, and high cost of certificate verification. The start-of-the-art decentralized blockchain technology can be applied to solve the problems. In this paper, we reveal the shortages of current centralized systems and propose EduChain, a heterogeneous blockchain education data management system, which leverages the advantages of both private blockchains and consortium blockchains. We also propose an effective mechanism to conduct database consistency check and error traceback based on the second consensus via pt-table-checksum tool to solve the database mismatching problem. This system shows good performance in information verification, error traceback and data security.