Highly reliable data transaction system, and highly reliable data transaction method

A highly reliable data transaction system with a distributed network, transacting a health check result of an examinee, the highly reliable data transaction system comprising:

• authentication means for authenticating a health check institution, based on health check institution information related to the health check institution where the examinee takes a health check;
• first acquisition means for acquiring, at least, examinee information related to the examinee taking the health check at the health check institution authenticated by the authentication means, consent information related to consent for transaction of a health check condition for the health check and a health check result of the health check, and health check result data of the examinee having taken the health check at the health check institution;
• highly reliable data generation means for generating highly reliable data, subject to the transaction with a user, from the health check result data of the examinee acquired in the first acquisition means, based on authentication information indicating that the health check institution is authenticated, and the consent information;
• first recording means for sorting and recording part or all of the highly reliable data, generated in the highly reliable data generation means, in a highly reliable data storage database for storing the highly reliable data, or sorting and storing the highly reliable data, generated in the highly reliable data generation means, in blocks connected by a blockchain built in the distributed network;
• and
• first delivery means for, when transaction information related to acquisition of the part or all of the highly reliable data recorded by the first recording means is acquired, delivering the part or all of the highly reliable data to the user, depending on the transaction information.