A Blockchain-Based Organ Donation Management System

Abstract

Organ transplantation is life-saving but faces major ethical, logistical, and trust-related challenges. Centralized organ donation workflows are susceptible to delays, data tampering, and opaque allocation decisions. We present a full-stack Blockchain-Based Organ Donation Management System that integrates Ethereum smart contracts to deliver immutable audit trails and transparent allocation events while keeping sensitive clinical data encrypted off-chain. The prototype couples a React + Vite frontend with a Flask backend (PostgreSQL, Web3.py) and minimal on-chain logic in Solidity. Evaluation on a private Ethereum testbed shows correct matching, low end-to-end latency on the local network, and acceptable gas usage when heavy computation is performed off-chain. The design is extensible to Layer-2 scaling and privacy-preserving primitives for real-world deployment.