Described herein are various embodiments of a system for tracking interests in content using a distributed data store. By being “distributed,” there may be multiple different copies of the data store that each hold a portion or all of the data of the data store, with the different copies being continuously, periodically, or occasionally synchronized to ensure that data held in one matches the data held in another, but with no copy of the data store being treated as the official or canonical copy of the data store. The distributed data store may track the interests regarding the content in particular ways, including through storing information identifying the content and identifying interests in the content. The distributed data store may be used to track interests in media, such as to track ownership, management, or royalty interests in media like songs, to provide a mechanism for “Digital Rights Expression” (DRE).