Blockchain and smart contracts for a medical record access authentication

blockchain technology to securely store health records and maintain a single version of the truth. The different organisations such as doctors, hospitals, laboratories, pharmacists and health insurers can request permission to access a patient’s record to serve their purpose and record transactions on the distributed ledger. blockchain platform needs to provides the patient full access and control over their data, they will have the capability to provide differing levels of access to various users, by assigning a set of access permissions and designating who can query and write data to their blockchain. The patient, being the owner of their own medical records, will be able to fully control who accesses their data and which information they access. The patient would have the ability to grant access to their EHR to other users and revoke access by setting up a time limited gateway, thereby improving data security. Approved clinicians on the blockchain platform will have the ability to ‘read and write’ to the patient’s records. Moreover, the blockchain platform will provide the users with a full log of who has access to their medical data, the time of access and the particular types of data that can be accessed.