Design of a Smart Contract for Medical Records Based on Blockchain

Abstract

In today's medical field, an ever-increasing number of different medical institutions begin to share patients' cases. Although this provides convenience for patients to seek medical advice, it will also lead to the problem of data abuse, and the patient's medical records are also at risk of being leaked or tampered with. The decentralization, non-tampering, openness, transparency, and traceability of blockchain technology can effectively solve these problems. This paper mainly studies a kind of medical records electronic contract which can guarantee the authenticity, security, and security of medical data. Firstly, patients own their medical records, and their medical data can be stored on the blockchain. The certificates of doctors and patients will also be stored on the blockchain. Secondly, the identities of doctors and patients need to be double verified in the storage process to ensure the authenticity and reliability of the data on the chain. Finally, the performance of a smart contract is evaluated by experiments. The smart contract studied in this paper can assure that large-scale medical data can be effectively stored and ensure the security of electronic medical records. And it can realize the sharing and reading of medical information between different hospitals.