Medical data ownership management method

A medical data ownership management method comprising:

• granting, by an administrator unit, a first authority to a medical unit, in which the first authority permits the medical unit to create a first medical identification object, the first medical identification object is stored on a blockchain, and the blockchain is provided with a first non-fungible token corresponding to the first medical identification object;
• granting, by the medical unit, a second authority to a research unit, in which the second authority permits the research unit to access the first medical identification object;
• accessing and processing, by the research unit, the first medical identification object to create a second medical identification object, in which the second medical identification object is stored on the blockchain, and a second non-fungible token corresponding to the second medical identification object is also provided on the block chain;
• and
• granting, by the research unit, a third authority to a user unit, in which the third authority permits the user unit to access the second medical identification object, wherein
• the first medical identification object and the second medical identification object are associated with a subordinate list of the first non-fungible token and a subordinate list of the second non-fungible token, respectively, in which the subordinate list of the first non-fungible token records that the first medical identification object is created by the medical unit and accessed by the research unit, and the subordinate list of the second non-fungible token records that the second medical identification object is created by the research unit and accessed by the user unit.