Systems and methods are described for providing media recommendation to a user based on analyzing a blockchain ledger. A user interest score that represents interest of the user in media assets associated with a first keyword is stored. A blockchain ledger is accessed. The blockchain ledger includes multiple blocks, each block identifying: (1) a media asset; (2) a seller user; and (3) buyer user. A blockchain ledger is searched to find a block that: (1) identifies a first media asset that comprises metadata which includes the first keyword; and (2) identifies the user as the seller. The user interest score is then reduced based on such a block being found. A media asset recommendation is then provided to the user based on the user interest score.