Blockchain-based health monitoring system

Described is a health supervision system (1), comprising: - an identification station (10), configured to obtain at least one first data item (D1) indicating an identity of a user, - a health station (12) configured to obtain at least one second data item (D2) indicating a health situation of the user identified, - at least one local data repository (14), and - a control unit (16), configured for: - receiving the at least one first data item (D1) and the at least one second data item (D2), - calculating a string (D3), using a cryptographic function, as a function of the at least one first data item (D1) and/or the at least one second data item (D2), - storing the at least one first data item (D1) and/or the at least one second data item (D2) in the at least one local data repository (14), and - transmitting the string (D3) to a distributed architecture database (18) of the distributed ledger type to write the string (D3) to the distributed architecture database (18).