ELECTRONIC ASSET UTILIZATION SYSTEM, ELECTRONIC ASSET UTILIZATION METHOD, SERVER FOR USE WITH ELECTRONIC ASSET UTILIZATION SYSTEM, AND RECORDING MEDIUM HAVING RECORDED THEREON ELECTRONIC ASSET UTILIZATION METHOD

An electronic asset utilization system is constituted of a stationary terminal 11, such as a set-top box (STB), a mobile terminal 13, such as a portable cellular phone, and a server 15. The server 15 receives an order for an electronic asset from the stationary terminal 11 or the mobile terminal 13; downloads to the stationary terminal 11 or the mobile terminal 13 an electronic asset and an exchange or receipt certificate to be described later; retains the thus-issued electronic asset, exchange certificate, or receipt certificate; and settles a charge billed to the thus-ordered electronic asset.The stationary terminal 11, the mobile terminal 13, and the server 15 are connected to a communications network.