Blockchain-Based Strategies for Ensuring Privacy in Healthcare Data Preservation

Abstract

The digitization of healthcare records has revolutionized medical systems but has also exposed sensitive patient data to risks including unauthorized access, data tampering, and privacy breaches. Traditional centralized storage solutions, though convenient, lack transparency and resilience. Blockchain technology, with its decentralized, immutable, and cryptographically secure structure, presents a viable alternative for ensuring privacy in healthcare data preservation. This paper explores various blockchain-based strategies for secure healthcare data storage, access control, interoperability, and patient-centric data ownership. It evaluates existing global use cases, proposes a privacy-preserving framework suited to the Indian healthcare context, and outlines the challenges and policy implications of implementing blockchain in medical data systems.