A Blockchain System for E-Learning Assessment and Certification

Nowadays, the applications of blockchain technology spring up rapidly, providing opportunities for solving the weaknesses in online education field, such as the complexity of e-learning assessment, the lack of a unified e-learning assessment standard and the insecurity of digital education certificates. In this paper, we propose a blockchain system for e-learning assessment and certification, which includes an entirely new network structure on the basis of the combination of the public and private blockchains, as well as four specific smart contract schemes for the realization of the e-learning assessment and credit exchange, the digital certificate issuance and secure storage, the digital certificate verification and the e-learning voucher allocation, respectively. The proposed system has been demonstrated as a promising candidate solution to establish a fairer, healthier and more open e-learning and online education environment.