Blockchain-Based Student Accreditation and Credential Verification System

The verification of academic credentials remains one of the most critical challenges in higher education and employment ecosystems. With the rapid digitalization of records, the circulation of forged certificates and manipulated transcripts has increased significantly, damaging institutional reputation and eroding public trust. Existing frameworks such as India’s Digital Locker, Cerberus, and EduCTX represent significant advances but exhibit key limitations. The Digital Locker Framework, though government-backed, is still centrally controlled, making it susceptible to single-point failure and limited interoperability. Cerberus, a blockchain-based approach, ensures immutability through Merkle trees but suffers from high on-chain complexity and limited user accessibility. EduCTX, on the other hand, focuses primarily on credit transfer and lacks mechanisms for credential authenticity and issuer validation. This project proposes a Blockchain-Based Student Accreditation and Credential Verification System, which integrates the advantages of distributed ledger technology with QR code-enabled instant verification and digital signature-based authentication. In this system, every credential issued by an accredited institution is hashed, digitally signed, and registered on a permissioned blockchain network. Each certificate contains an embedded QR code that links to its blockchain record, allowing employers, universities, and organizations to validate authenticity in real time. The blockchain ledger ensures immutability, transparency, and auditability, while smart contracts provide a revocation mechanism for invalid or withdrawn credentials. Sensitive data such as student details remain stored off-chain in encrypted form, thereby maintaining compliance with privacy laws like the General Data Protection Regulation (GDPR) and India’s Information Technology Act. The proposed framework creates a secure, tamper-proof, and decentralized academic ecosystem, bridging the gap between universities, students, and verifiers. It reduces verification time from days to seconds, mitigates fraud, and promotes trust through cryptographic verification and institutional accountability.