Content server, content selling system, and program

A content selling system, comprising:

• a content market configured to sell a digital content item including two or more components produced by members of a community;
• a user terminal possessed by a user purchasing the digital content item from the content market;
• a content control device configured to manage the members and to obtain sales data of the digital content item in the content market and contract information indicating the two or more components included in the digital content item and the members who have produced the two or more components, the content control device being configured to generate a graph including two or more nodes and an edge representing a relationship between the two or more nodes, the two or more nodes representing different entities extracted from the sales data and the contract information;
• and
• a content database configured to store the graph,
• wherein the graph includes, as the entities, identification information of the digital content item, a sales amount of the digital content item in the content market, identification information of the two or more components, and identification information of the members, and the graph includes the edge extending from a node, as a center, of the two or more nodes representing the identification information of the digital content item to a node of the two or more nodes representing an entity of the entities different from an entity for the digital content item.

A non-transitory computer-readable storage medium storing a program executable by a computer for managing a digital content item sold in a content market, the digital content item including two or more components produced by members of a community, the program causing the computer to function as:

• a content communication device configured to communicate with a member terminal including a display, the member terminal being possessed by each of the members;
• and
• a content control device configured to obtain sales data of the digital content item in the content market, and contract information indicating the two or more components included in the digital content item and the members who have produced the two or more components, the content control device being configured to cause the display to display a graph through the content communication device, the graph including two or more nodes and an edge representing a relationship between the two or more nodes, the two or more nodes representing different entities extracted from the sales data and the contract information,
• wherein the graph includes, as the entities, identification information of the digital content item, a sales amount of the digital content item in the content market, identification information of the two or more components, and identification information of the members, and the graph includes the edge extending from a node, as a center, of the two or more nodes representing the identification information of the digital content item to a node of the two or more nodes representing an entity of the entities different from an entity for the digital content item.