A Novel Block chain-Based Framework for Decentralized Medical Records Management

Abstract

The management of Electronic Medical Records (EMRs) has long been hindered by centralization, lack of interoperability, and data security concerns. With the increasing demand for patient-centered healthcare and data transparency, a secure and decentralized approach has become essential. This paper presents Care Sync, a Hyperledger-based blockchain framework for decentralized medical record management. The system provides patients with a tamper-proof, transparent, and interoperable platform to access and share their medical data securely across multiple healthcare providers. By leveraging Hyperledger Fabric’s permissioned blockchain architecture, Care Sync ensures authentication, confidentiality, integrity, and accountability while maintaining strict access control through smart contracts. The proposed framework integrates seamlessly with existing hospital information systems using a modular design, enabling scalability and adaptability in real-world healthcare environments. Authorized entities such as hospitals, laboratories, and insurance providers operate as network peers, maintaining consensus without exposing sensitive data publicly. Care Sync aims to enhance data security, interoperability, and patient empowerment in healthcare ecosystems. The paper demonstrates the design, implementation, and performance of a working prototype, highlighting how blockchain technology can transform traditional EMR systems into a secure, efficient, and patient-centric model.