A Decentralized Healthcare Records Management System built with Solidity Smart Contracts and React

Abstract

The objective of this work is to present a decentralized healthcare records management system. The system is built on the Ethereum blockchain using Solidity smart contracts and a React-based web interface. And this system addresses security, integrity, and privacy limitations of traditional centralized electronic health record (EHR) systems. By enforcing the role-based access control, immutable storage of patient records, and transparent audit trails for all operations. A smart contract ‘HealthcareRecords’ manages patient data operations and provider authorization, while a MetaMask-integrated frontend enables secure interaction with the blockchain through an intuitive interface. The local Hardhat Ethereum network is used to deploy the proposed work, outcome of the prototype demonstrates a secure healthcare record creation and retrieval of the patient data. This local network demonstrating the strict access control, low gas consumptions and low latency, which are suitable for real usages in healthcare environments.