PROBLEM TO BE SOLVED: To enable an individual provider to easily register and market digital data as gotcha contents.;SOLUTION: Individual providers access a service via a program built in a content supply device, using a communication terminal device connectable to a network, and thereby digital data such as a photo, image, motion image, voice and music is made registrable and marketable as gotcha contents. Similarly, ordinary users pay a prescribed currency, using a terminal device connectable to the network to thereby acquire a prescribed number of gotcha by lottery, and can store the prescribed number thereof in the terminal device. Further, the gotcha content purchased by the ordinary user is collected as data for each content, and is subjected to ranking.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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