Data Cooperation System, Data Cooperation Method, Trust System, and Data Publicizing Method

In a data cooperation system in which information cooperates in a first system, a second system and a third system, the first system provides an already operating service and collects and publicizes behavior data as information for providing the service, the second system acquires the behavior data, generates a verification result applying the behavior data to a new technology as verification data, and publicizes the verification data, and the third system receives the behavior data and the verification data, supports decision of the determination result data, and publicizes the decided determination result data.