Database Design in a Blockchain-Based System for Generating and Verifying Academic Credentials

Abstract

The management of data and their storage in the database for an indefinite time, whether in a centralized or decentralized form, is of great importance for the operation of the system and its efficiency. One of the challenges that decentralized systems are facing is the lack of decentralized management of databases, because they have limitations in terms of inserting, updating, and deleting data. The generation of diplomas is a more sensitive issue and one of the reasons why it has not been digitalized to date is the fact that centralized systems do not offer sufficient security for the generation of such documents, since the same systems must be controlled by third people or administrators of the system, where there is also the suspicion of data misuse. Through the paper, we will compare centralized and decentralized databases, the operation of decentralized databases, and finally present a scheme of our vision about the operation of the database in the blockchain-based system for the generation and verification of diplomas.