A Distributed Ledger Architecture for Transparent and Tamper-Proof Blood Supply Management

Abstract

Management of blood supplies is a very important part of healthcare infrastructure, and the old system is highly dependent on central databases, which cannot be traced, are not transparent, and cannot resist tampering of data. Such restrictions may cause poor coordination, slow emergency response and manipulation of sensitive medical records. To overcome these issues, this paper offers a proposal of distributed ledger architecture to manage blood supply transparently and its tamper-proof. The system that is suggested will exploit blockchain technology and smart contracts to document blood donation, inventory updates, compatibility checks, and allocation transactions in an unalterable and decentralized fashion. To guarantee modularity and scalability, the architecture is designed into layers of components including user interaction, application logic, and blockchain ledger. Smart contracts automate the most important processes like donor validation and blood group matching and minimize human error and administration delays. To achieve privacy and efficiency of the used system, sensitive medical information is stored off-chain, and on-chain cryptographic hash references are used to maintain integrity and auditability. The distributed ledger removes single points of failure and gives a verifiable transaction history available to authoritative stakeholders. This architecture creates a safe, open and resilient architecture that has the potential to enhance trust, coordination and accountability in blood supply networks.