Content holder unit, information processing method, and program

A content holder unit configuring an information communication system having one or two or more content holder units and a content receiver, the content holder unit comprising:

• a content information memory section that stores retained content information including fragmented content information in which a series of pieces of content information is fragmented by a plurality of continual records in relation to a content information ID for identifying the retained content information, and stores one or more positional information for specifying the content holder unit retaining the fragmented content information contained in the retained content information in relation to the content information ID;
• a command information receiving section that receives command information for commanding transmission of the fragmented content information;
• a content information configuration section that makes up fragmented transmission content information including fragmented command content information that is fragmented content information sent to the content receiver by the command information received by the command information receiving section, and an additional fragmented content information included in retained content information including the fragmented command content information and that is the fragmented content information differing from the fragmented command content information;
• and
• a content information transmission section that transmits fragmented transmission content information generated by the content information configuration section to the content receiver.