The existing centralized system in which the user does not manage information about himself/herself is outdated and unreliable. The developers propose blockchain technologies and smart contracts to eliminate these barriers. The formation of a unified platform for storing all the medical data will optimize the use of relevant information. The advantages of MediBlock: all the data is stored on the blockchain, which ensures the safety of their storage and the impossibility of distorting the information; the information included in the blockchain cannot be changed; additional documents are compiled to fill in the relevant data, which allows you to create complete medical and treatment histories; the user himself manages his data and decides who can get access to it and to what extent; The terms of the smart contract allow the doctor to provide documents, but he cannot open them to third parties without the patient’s consent. The key aspect of this issue is the functionality of the internal cryptocurrency MediBlock. The platform implements ERC20 and QRC20 tokens for better interaction with the Ethereum and Qtum infrastructure.