Safe Electronic Healthcare System with Innovative Blockchain Technology

Because of the Internet's revolutionary effect on the healthcare industry, patients now have constant, anywhere-and-anytime access to their own health data. Medical inconsistencies linked with Electronic Health Records (EHR) and concerns relating to privacy and security problems need to be resolved. Perhaps the largest difficulty of all was lack of uniformity and unfortunately it is not the only one with EHR. In order to solve the problems of interoperability and privacy, decentralised online ledgers using blockchain based platforms have been suggested and implemented. Other difficulties, though, persist. To be more specific, the technological issues of scalability, usability, and accessibility. The first technological obstacle is the need to keep medical records in their various formats off-chain while providing safe access control to them on-chain. The second difficulty is providing an accurate description of who owns what data and how that data is shared at times of medical urgency. Because formal verification of smart contracts takes a long time relative to processing a big block of transactions, accessibility remains an open problem. A Secure eHealth Framework (SeFra) is offered as a progressive temporal blockchain solution to the aforementioned problems.