Health Record Chain (HRC): Implementation of Mobile Healthcare system using Blockchain to enhance Privacy of Electronic Health Record EHR

Mobile health applications connect to wearable devices with inbuilt sensors to monitor critical human body parameters such as heart rate, pulse rate, body temperatures ,and others. This paper will introduce our system, Health Record Chain HRC, to investigate how to design and implement secure mobile health systems that leverage the smart mobile devices' new authentication and geo-location mechanism. HRC introduces an enhancing framework to ensure the users' security and privacy and conform to the related regulations ( General Data Protection Regulation GDPR, Health Insurance Portability and Accountability Act HIPPA) using blockchain. The immutability of blockchain conflicts with GDPR’ "Right to be forgotten" when the user can delete all of his/her data. This work implements a blockchain system with a mobile application and a web interface to address this conflict by hashing the Electronic health record EHR to Ethereum based blockchain.