PROVIDED INFORMATION MANAGEMENT SYSTEM AND PROVIDED INFORMATION MANAGEMENT PROGRAM

摘要

Sharing and diffusion of falsely provided information is effectively prevented. An information recipient device (S3) for receiving provided information in a system where provided information such as music contents is circulated over an information sharing network using communication models such as a peertopeer is characterized by comprising check information judging means (3E) for judging whether or not the check information received from a provided information management device (S1) for managing the provided information is normal check information and check means (3F) for checking identification information included in the check information with the identification information received by identification information receiving means according to the check information judged as being normal and outputting a control signal for controlling the provided information received by the provided information receiving means according to the contents of the check information.