Development of an architectural model of a blockchain-based system for the exchange of medical data

The secure exchange of personal medical data between healthcare institutions is a problem facing modern medicine. Confidentiality, integrity and accessibility of information are priority aspects in the development of information systems in this area. One of the promising solutions is the use of blockchain technology, which makes it possible to create a decentralised, transparent and secure system for storing and exchanging medical data. The study analyses the existing problems of information transfer in medical institutions, examines the basic concepts of blockchain technology, including Hyperledger and smart contracts, and suggests an architectural model of the system that can improve the security and efficiency of working with patients' personal data.