In a rights system, a plurality of asserted and reconciled assets are maintained. For example, asserted and reconciled assets can be maintained in a table structure of the rights system. Each asserted asset can associated an asset with an owner and additionally include descriptive data describing the asset. Asserted assets can be created by the rights system based on descriptive data provided to the rights system by owners of assets. In contrast, reconciled assets are generated by the right system by associating one or more asserted assets. The set of asserted assets can be modified, both through updates to the descriptive data of existing asserted assets, and through the generation of new asserted assets based on additional descriptive data. Based on the modifications to the asserted assets, the set of reconciled assets can be modified to reflect new or corrected information present in the set of asserted assets.