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@article{196719,
        author = {Narayanam Likhitha and Chidamana Preetham and Medapalli Alekhya and Kosuru Yuva Kishore},
        title = {A Trust-Aware, Multi-Chain Blockchain System for Secure Certificate Verification},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {5390-5396},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=196719},
        abstract = {This project aims to design and implement a secure and scalable blockchain-based academic certificate verification system with explicit support for certificate lifecycle management. The primary objective of the project is to overcome the limitations of existing certificate verification systems by introducing automated certificate verification, revocation, and expiry control using smart contracts. The system associates each certificate with a decentralized identity (DID) to ensure secure ownership and prevent unauthorized misuse. To reduce storage overhead and improve efficiency, certificate files are stored in a decentralized storage system, while only cryptographic hashes and lifecycle metadata are recorded on the blockchain. A multi-chain or Layer-2 architecture is employed to handle frequent verification requests with reduced transaction cost and latency, making the system suitable for real-world institutional use. Smart contracts enforce time-based expiry of digital verification validity and allow authorized institutions to revoke certificates in cases of error, misconduct. The verification process validates certificate authenticity by checking hash integrity, revocation status, and expiry conditions before generating the final result. The proposed system focuses on improving trust and scalability in academic certificate management while maintaining tamper resistance and transparency. This project demonstrates how controlled certificate lifecycle management can be effectively applied to educational credentials without affecting the academic validity of qualifications.},
        keywords = {Blockchain, Academic Certificate Verification, Smart Contracts, Decentralized Identity (DID), Certificate Revocation, Certificate Expiry, Layer-2 Blockchain.},
        month = {April},
        }