Decentralized Blockchain Framework for Drug Tracing in Medical Supply Chains

Abstract

Ensuring the authenticity, security, and traceability of drug distribution in healthcare is a critical challenge. This project presents a decentralized drug allocation system leveraging blockchain technology to securely allocate and track medications. The system employs smart contracts on a permissioned Ethereum-based blockchain, ensuring tamper-proof records while maintaining strict role-based access control for doctors and patients. Patients and doctors authenticate using decentralized identity (DID), and sensitive data is stored securely using IPFS and Zero-Knowledge Proofs (ZK-SNARKs). The frontend is developed using React with TypeScript, integrating Wagmi and ethers.js to interact seamlessly with the blockchain. By eliminating centralized points of failure, this system enhances drug traceability, prevents fraud, and ensures secure and transparent transactions in the healthcare sector.