Blockchain Based System for the Verification and Safekeeping of Medical Examination Record of Government Employees

Medical data is very sensitive and vital in form of Electronic Health Record (EHR) for healthcare sector, storage of this data is one of an important challenge. Cloud is providing storage services with cost and energy efficiency, data over the cloud is secure but not much over the public cloud. EHR require more security and there is strict compliance of HIPAA and HL7 over the security of patient’s medical record. Sensitive EHR over the public cloud where the urgent verification is required is also great challenge. Different cryptography techniques are proposed to secure the data but there are much chances to compromise the keys. Our proposed technique for secure verification of data store locally with the use of blockchain technology that make information immutable and distributed, so that the medical record could be verify from different offices and authorities using blockchain technology. As a model we have taken an important hospital of the city (working under the Government of the Punjab, Health Department) where all medical examination record (MER) is maintained and Medical Fitness Certificate (MFC) issues to Govt. employee. We shall use Hyperledger Fabric to develop the Private/Consortium network of all Tertiary Care Hospital in the city, headed by Office of Secretary Specialized Healthcare and Medical Education (SSHC&ME). Hash of the medical fitness certificate store in Hyperledger Fabric (HLF) blockchain with report id, timestamp patient’s id, and digital signature of Medical Superintendent (MS). Blockchain digital ledger will distributed between high level authorities (offices of Secretaries’ Health, TCH). Office SSHC&ME work as admin of whole HLF network. For verification, verifier (user/Government department) get the hash of medical fitness report and verify it from HLF blockchain network using HLF SDK