ABSTRACT
Over the last few years, there is a growing need for researchers to study various accessible methods to develop Electronic Health Records in order to help physicians access patient data while maintaining privacy of the health data. However, there lie several challenges due to the accessibility of various Internet of Things sensors and wearables that collect user’s physiological and mental health data. Therefore, it is crucial to secure such data in the healthcare ecosystem so that it is not retrievable by third parties. In this vein, we have used the concepts of blockchain to provide patient control of their own data and the liberty to choose the specific medical caregivers they want to share their data with. We have implemented a large-scale information architecture to access EHRs based on hyperledger fabric model. Setting distributed ledger of the blockchain node can be used for setting up central network of the edge computing that could be visualized as the vectorized decentralized edge computing. We have framed data privacy and accessibility issues in healthcare and proposed an integrated blockchain-based architecture. This chapter describes an approach to address limitations such as permissioned blockchain that uses off-chain storage of the data assets, and this is accessed through a standard browser and mobile app. There are three main components to the proposed system: a blockchain-based access control module, off-chain data storage and a role-centered web user interface. The implementation in the hyperledger framework is described as an example use of patient-centered health data management.
