Health Information Management Through Blockchain and NFTs: Experimental Evaluation of Data Sharing Reliability

Abstract

This paper presents a blockchain-based health information self-management platform that leverages smart contracts and Non-Fungible Tokens (NFTs) technologies to ensure data integrity and secure access control. Existing health information systems face challenges related to data security, patient privacy, and interoperability. Our proposed platform addresses these issues through a decentralized architecture that utilizes NFTs for ownership management, InterPlanetary File System (IPFS) for distributed data storage, and smart contracts for access control. Experimental results verified that the system operated as intended, with complete tampering detection and accurate access control during ownership transfers, in line with the security guarantees inherent in blockchain technology. Although the distributed architecture results in longer response times (7836.4 ms), this is a trade-off to achieve cryptographically guaranteed security. Overall, the proposed system enhances data transparency and trust in the management of health information.