• Venkat R
• Shruti Srinivasan
• Mrs. Deepa R
• S Varsha

Modern healthcare systems are extremely complex and costly. This can also be minimized by better monitoring of health records, using Blockchain technology. Blockchain was first implemented to provide distributed records of money-related transactions which were not reliant on centralized authorities or financial institutions and seems to pave the way for revolution in the conventional healthcare industry benefitting by its unique features such as data privacy and transparency. This system proposes an Electronic Health Record (EHR) model using Blockchain technology. The implementation of this model is done using Ethereum Dapp. Ethereum is an open-source, public, blockchain-based platform and operating system featuring smart contract functionality. A Dapp is an autonomously operated open- source application that is not managed by any central authority. Instead it is decentralized over the web built on the top of blockchain technologies. The data of a Dapp is stored cryptographically in a public and also decentralised blockchain to avoid any single point of failure. The proposed model uses different development environments to build a highly effective EHR which is not controlled by a single point of authority and uses a decentralized system for storage.

blockchain, ethereum, EHR, healthcare, off- chain storage

"Smart Electronic Healthcare Record System based on Blockchain technology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 5, page no.30-34, May-2020, Available :http://www.jetir.org/papers/JETIRDV06009.pdf

"Smart Electronic Healthcare Record System based on Blockchain technology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 5, page no. pp30-34, May-2020, Available at : http://www.jetir.org/papers/JETIRDV06009.pdf