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@article{194305,
        author = {Nagaluti Hemalatha and Sagri Varsha and Yaganti Pravallika and Gonapadu Rokkam Prasad and Malekar Akhilesh and Dr. P Veeresh},
        title = {A Blockchain-Based Framework For Secure And Tamper-Resistant File Integrity Verification},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {10},
        pages = {3304-3310},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=194305},
        abstract = {With the rapid growth of digital data, ensuring the integrity and authenticity of files has become a critical cybersecurity challenge. Traditional centralized file verification mechanisms are vulnerable to unauthorized modifications, single points of failure, and lack transparency in integrity validation. To address these limitations, this paper proposes a blockchain-based framework for secure and tamper resistant file integrity verification. The proposed system leverages cryptographic hashing techniques, specifically SHA-256, to generate unique digital fingerprints for files. Instead of storing files directly, their corresponding hash values are recorded on a decentralized blockchain ledger, ensuring immutability and resistance to tampering. During the verification process, the hash of a file is recomputed and compared with the blockchain-stored hash to detect any unauthorized modifications. Any mismatch between the hashes indicates file tampering, thereby ensuring reliable integrity validation. In addition, the framework supports comparative file analysis to identify identical or modified versions of files, further enhancing verification accuracy. The system is implemented using Python with a user-friendly graphical interface, making it accessible for practical use by individuals and organizations. By combining decentralization, cryptographic security, and transparency, the proposed framework provides a robust and reliable solution for protecting digital file integrity against tampering and unauthorized alterations.},
        keywords = {Blockchain; Document Verification; Digital Credentials; Smart Contracts; Cryptography; Immutable Ledger; Fraud Prevention.},
        month = {March},
        }