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A Novel EMR Integrity Management Based on a Medical Blockchain Platform in Hospital

Department of Computer Engineering, Jeju National University, Jeju-si 63243, Korea
Daegu-Gyeongbuk Research Center, Electronics and Telecommunications Research Institute, Daegu-si 42994, Korea
Author to whom correspondence should be addressed.
Electronics 2019, 8(4), 467;
Received: 27 March 2019 / Revised: 11 April 2019 / Accepted: 18 April 2019 / Published: 25 April 2019
(This article belongs to the Section Computer Science & Engineering)
PDF [4035 KB, uploaded 26 April 2019]


Recent advancements in information and communication technology is enabling a significant revolution in e-Health research and industry. In the case of personal medical data sharing, data security and convenience are crucial requirements to the interaction and collaboration of electronic medical record (EMR) systems. However, it’s hard for current systems to meet these requirements as they have inconsistent structures in terms of security policies and access control models. A new solution direction is essential to enhance data-accessing while regulating it with government mandates in privacy and security to ensure the accountability of the medical usage data. Blockchain seems to pave the way for revolution in the conventional healthcare industry benefiting by its unique features such as data privacy and transparency. In this paper, a blockchain-based medical platform using a smart contract is proposed to secure the EMR management. This approach provides patients a comprehensive, immutable log and easy access to their medical information across different departments within the hospital. A case study for hospital is built on a permissioned network, and a series of experimental tests are performed to demonstrate the usability and efficiency of the designed platform. Lastly, a benchmark study by leveraging various performance metrics is made and the outcomes indicate that the designed platform surpasses the ability of existing works in various aspects. The results of this work reveal that the proposed solution has the great potential to accelerate the development of a decentralized digital healthcare ecosystem. View Full-Text
Keywords: healthcare; distributed ledger; medical blockchain; smart contract; EMR sharing healthcare; distributed ledger; medical blockchain; smart contract; EMR sharing

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Hang, L.; Choi, E.; Kim, D.-H. A Novel EMR Integrity Management Based on a Medical Blockchain Platform in Hospital. Electronics 2019, 8, 467.

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