International Journal of Scientific Research and Engineering Development

Secure log management is critical for ensuring forensic reliability, regulatory compliance, and effective incident response in modern cybersecurity infrastructures. Conventional centralized logging systems are vulnerable to insider manipulation, unauthorized deletion, and single points of failure. To address these limitations, this paper proposes a Zero-Trust Blockchain-Based Tamper-Resistant Logging Framework that integrates SHA-256 cryptographic hashing, Merkle Tree–based batch verification, and blockchain anchoring to ensure log immutability and integrity. Each log entry is hashed and incorporated into a Merkle structure, with the Merkle Root committed to a blockchain ledger to provide decentralized, timestamped proof of integrity. The framework enforces Zero-Trust Architecture (ZTA) principles in accordance with NIST SP 800-207, incorporating strict authentication, role-based access control, and continuous verification mechanisms. Experimental evaluation demonstrates efficient processing, scalable verification complexity, and reliable tamper detection. The proposed approach eliminates centralized trust dependencies and provides a secure, transparent, and scalable logging solution for enterprise environments.

Prajwal Rajesh Mane, Sagar Vhyavahare,"Zero-Trust Blockchain-Based Tamper-Resistant Logging Framework" International Journal of Scientific Research and Engineering Development, V9(2): Page(347-350) Mar-Apr 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.