Based on Consortium Blockchain to Design a Credit Verifiable Cross University Course Learning System

Table 1

The related works survey.

Authors	Year	Objective	Technologies	Merits	Demerits
Sharples et al. [13]	2016	A distributed system for the educational record, reputation, and reward	Blockchain	Realize distributed storage of student-related data	No system architecture is proposed
Turkanović et al. [14]	2018	Higher education credit platform	Public blockchain	Student credits can be awarded and transferred	Students’ learning process cannot be checked
Zhao et al. [15]	2020	System for student e-portfolio assessment	Consortium blockchain	Realize storage of students’ learning records and teachers’ evaluation	Security analysis is not sufficient
Mishra et al. [16]	2021	System for sharing students’ credentials	Ethereum	Student certificates are encrypted before being uploaded to the system	Consumption of tokens is inevitable
Jeong et al. [17]	2021	The multilateral personal portfolio authentication system	Hyperledger fabric	Detailed system implementation based on hyperledger fabric	Unable to protect the privacy of learning records