Blockchain-Based Framework for Interoperable Electronic Health Record

Electronic Health Record (EHR) is being used in most healthcare institutions through the advancement in computer technologies to preserve and share health records instead of a paper-based method. Data information should be exchanged amongst various parties and users' privileges to manage access to their records should also be provided.  In addition to the basic standards of secrecy, confidentiality and integrity of information, these acts further demonstrate the need for interoperability and consumer access to personal data. EHR frameworks face problems in the protection of data collection, reputation and management. Blockchain technology has arisen as a powerful technology that can offer the immutability, confidentiality and user access properties of stored information without the need for centralized storage. This paper discusses the different EHR norms, specifications and problems and also offers a comparative analysis of various EHR specifications and current blockchain-based EHR systems. Finally, it suggests an interoperable EHR system focused on blockchain.