Paper Details

Name: Manas Mayank, Sarthak & Munish Kumar
Country: India

Year: 2026
Volume: Volume No: 13, January, Year: 2026 (Special Issue)
Page Number: 497-508
DOI: https://doi.org/10.5281/zenodo.19063379

ABSTRACT—
With increasing use of cloud storage, ensuring data security, openness, and integrity has become ever more critical. Centralization, potential tampering, and lack of transparency are typical issues with conventional audit trails employed to monitor data access and changes in cloud computing environments. To enhance cloud storage security and reliability, this article explores a blockchain-based audit trail system. The proposed approach ensures tamper-proof logging of all data transactions through the immutability, cryptographic hashing, and decentralized prop- erties of blockchain technology. Additionally, smart contracts reduce third-party trust requirements through automated and verifiable auditing. We measure the scalability, performance, and architecture of the system compared to more traditional approaches to auditing. The findings indicate that, although there are some disadvantages such as scalability and cost of transac- tions, an audit trail in blockchain enhances the integrity and reliability of data within cloud storage. To make it more efficient, subsequent research will explore optimization techniques such as Layer-2 solutions and zero-knowledge proofs.

Index Terms—Distributed Ledger Technology (DLT), blockchain, cloud storage, audit trail, data integrity, smart contracts, decentralized security, cryptographic hashing, transparency, and tamper-proof logging.