Jeevanlocker: A Survey on Secure Blockchain Healthcare Records

Prashanth H. S¹, Mohammad Sufiyaan Meccai², Pranav Shastri³, Punith P⁴, Pranav C M⁵

¹Assistant Professor, Department of Computer Science and Engineering,

K. S. Institute of Technology, Bengaluru, Karnataka, India
²³⁴⁵Department of Computer Science and Engineering,

K. S. Institute of Technology, Bengaluru, Karnataka, India

Abstract - Healthcare institutions commonly maintain patient records in isolated databases, leading to fragmented medical information, repeated diagnostic procedures, delayed treatment, and reduced interoperability between hospitals. Traditional centralized healthcare systems are also vulnerable to unauthorized access, data tampering, and privacy breaches. This paper proposes JeevanLocker, a blockchain-based unified medical record management system designed to provide secure, patient-centric, and consent-driven healthcare data sharing. The proposed framework integrates encrypted medical record storage, blockchain-based audit logging, smart contracts, and role-based access control to improve transparency, security, and interoperability. Hospitals and doctors can access patient records only after receiving explicit patient approval, while all access requests and consent events are immutably recorded on the blockchain. The system also introduces a secure Break-Glass emergency access mechanism that allows temporary access during critical situations while maintaining complete auditability and patient notification. JeevanLocker aims to enhance healthcare efficiency, strengthen patient privacy, and establish trust between healthcare providers and patients through secure decentralized healthcare data management.Key Words:  Blockchain, Electronic Health Records, Healthcare Security, Smart Contracts, Medical Data Privacy, Consent-Based Access Control.