Online Storage, Retrieval & Authentication of Healthcare Documents using Ethereum Blockchain

Abstract

This paper discusses how blockchain (Ethereum) can be used to as a solution to improve or mitigate communication and storage issues of healthcare information. Smart hospital functionality of drug tracing has been achieved using the non-replicable feature offered by non-fungible tokens (NFTs) generated by ERC721. Every manufacturer along with the medicines allotted to the distributer are treated as unique entities which cannot be replicated. All entity details are recorded in SQL databases. Registration of a patient with the insurance claim system, assigns a unique ID using Secure Hash Algorithm 256 (SHA256) improving security.