This The increasing incidence of academic certificate fraud and the inefficiencies associated with conventional verification methods, including administrative delays, operational costs, and susceptibility to document manipulation, have created the need for more secure and efficient certificate verification mechanisms. This study presents a blockchain-based framework for student certificate verification using Ethereum. The proposed framework integrates Solidity-based smart contracts for certificate issuance, verification, and revocation; the InterPlanetary File System (IPFS) for off-chain document storage; and a web-based interface developed using React.js and Ethers.js. Cryptographic hashes, certificate metadata, and revocation status are maintained on the Ethereum blockchain to support document integrity and transparent verification, while role-based access control restricts sensitive operations to authorized institutional administrators. The system was deployed and evaluated on the Ethereum Sepolia test network, with Hardhat used for local development and testing. Experimental results showed that the framework achieved 100% functional success across 13 unit tests and five integration tests. Certificate issuance consumed 127,450 gas (approximately 0.00128 ETH), while revocation consumed 29,870 gas (approximately 0.00030 ETH), at a gas price of 10 Gwei. Read-only certificate verification returned results in less than 800 milliseconds under the reported test conditions without requiring a user-paid transaction gas fee. Security tests also confirmed the enforcement of access permissions, detection of document modifications, rejection of duplicate certificate registration, and correct handling of revoked certificates. The findings demonstrate the feasibility of integrating Ethereum smart contracts and IPFS for academic certificate lifecycle management, providing a transparent and independently verifiable approach to certificate authentication. Further evaluation using institutional records and larger transaction volumes is recommended to establish the framework’s scalability and suitability for real-world deployment.

Abiodun Ibrahim Akintunde, Davies Isobo Nelson, "A Block Chain-Based Framework for Student Certificate Verification Using Ethereum" International Journal of Computer Science and Engineering Development, V1(4): Page(85-92) September - October 2026. ISSN: 3139-0862. www.ijcsed.com. Published by Scientific and Academic Research Publishing.