Blockchain-Based Digital Diploma Verification Mechanism Using Smart Contracts and the Interplanetary File System (IPFS)
DOI:
https://doi.org/10.61536/ambidextrous.v5i03.933Keywords:
Blockchain, Digital Diploma, Document Verification, Interplanetary File System, Smart ContractAbstract
This research was motivated by the need for more targeted diploma verification to reduce reliance on manual confirmation and detect document changes. This study aims to develop and test a blockchain-based digital diploma verification prototype using SHA-256, smart contracts, and IPFS. The research is a prototype development using the Evolutionary Prototyping method. The test objects consist of 30 simulated diploma documents tested using identical documents, modified documents, diploma numbers, hashes, and CIDs. Instruments include SHA-256, IPFS, Solidity, Ethereum Sepolia, MetaMask, and a block explorer. Analysis was conducted functionally using black-box testing and descriptively analyzing processing time and gas fees. The results show that document changes produce different hashes, while identical documents produce matching hashes, with a 100% test scenario suitability rate. In conclusion, the prototype can support technical checks of integrity, registration, and transaction traceability, but does not yet prove the administrative validity of diplomas
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Copyright (c) 2026 Mukhamad Diva Mahardika Awaludin, Wina Witanti, Gunawan Abdillah
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