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@article{197316,
        author = {Hrithik Singh and Sairaj Khot and Jaykumar Sathe and Sahil Dhabhekar and Dr. Vanitha Soman},
        title = {Certchain: Decentralized Certificate Verification System},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {6487-6491},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=197316},
        abstract = {Certificate fraud and the limitations of centralized verification systems have made secure and tamper-proof solutions essential. Traditional certificate validation methods rely on intermediaries and are prone to forgery and delays. This paper introduces CertChain, a decentralized application designed to provide a reliable and cost-efficient framework for issuing and verifying academic certificates using blockchain technology.
The system adopts a hybrid architecture where cryptographic hashes of certificates are stored on the Ethereum blockchain, while actual files are maintained on cloud-based off-chain storage to reduce storage cost, improve scalability, and enable better accessibility. Smart contracts ensure data integrity and immutability, while MetaMask enables secure authentication and controlled access. The platform supports dual verification using certificate IDs and hash-based validation, providing transparency and flexibility. The system also includes a user-friendly interface for certificate management and verification.},
        keywords = {Blockchain, Certificate Verification, Smart Contracts, Decentralized Applications (DApps), SHA-256, Hybrid Storage, Ethereum, MetaMask, Cloud Storage},
        month = {April},
        }