There is provided a system and method for a digital receipt for use with an interoperable keychest. There is provided a method for online registration of a digital receipt associated with a content, comprising performing a transaction to obtain from a first distributor the content encrypted by a title key and a first digital rights management (DRM) license usable with the first distributor to access the title key, receiving from the first distributor the digital receipt associated with the content including information relevant to the transaction, and transmitting the digital receipt to the interoperable keychest acting as a central key repository (CKR) for an online registration of the digital receipt associated with the content. Authorized media distributors may then generate new DRM licenses using the CKR, enabling interoperable content playback of the same universal file across different media distributors and clients.