Blockchain-Based Educational Record System with Improved Byzantine Algorithm and Proof of Stake

To address the limitations of traditional educational record management systems in terms of data security, trustworthiness, and consensus efficiency, this study designs a blockchain-based educational record management system and proposes an enhanced consensus algorithm, REL-PosBFT, which integrates a dynamic reputation model and a hierarchical architecture. The system adopts a multi-role collaboration mechanism, incorporating Verifiable Random Functions, Threshold Signatures, and dynamic reputation evaluation to achieve trustworthy data recording and adaptive access control. A simulation environment is built using NS-3 and Docker to evaluate the system’s performance in latency, throughput, and security. Experimental results show that REL-PosBFT delivers superior response speed and scalability in high-concurrency, multi-node scenarios, demonstrating greater stability and practicality compared to the original PoS-BFT and mainstream consensus algorithms.