A Blockchain Technology to Secure Electronic Health Records in Healthcare System

The study proposes a blockchain-based patient-centric EHR solution for India. The proposed framework would provide a secure health infrastructure system, make data tampering impossible, enable just-in-time availability of healthcare information, remove handwritten prescriptions, and of er end-to-end monitoring, and increase patient privacy and record management. The research connects to hospital databases to incorporate previous handwritten prescriptions into the new system. In the Hyperledger Fabric-based design, patients will view, write, and control authorization to their medical information through a web or mobile interface. During implementation, we used a network model with three companies and three peers. When write block duration is raised from 250 ms to 2s, 250 tps throughput improves by 4x. Block size 20 is 50% faster than block size 40, improving network performance. Since the network model's CPU utilization has remained steady over time, a drop in block size and an increase in block time will lead to a considerable decrease in network latency, boosting network performance.