Importance

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Abstract

Method and apparatus for verifying provenance data associated with digital content. The provenance data preferably comprises a number of entries that serve as a history of processing steps carried out upon the digital content, such as when and by whom the content was created, transmitted, mastered, replicated, etc. A hash function is preferably used to generate a multi-bit digital signature from the provenance data, and the provenance data and the digital signature are stored in a memory. A processor uses the digital signature to authenticate the provenance data, preferably by generating a second digital signature from the provenance data and comparing the second digital signature with the first signature. The processor further preferably authenticates the content in relation to the authenticated provenance data. The processor preferably further processes the content, updates the provenance data in relation thereto, and calculates a new digital signature in relation to the updated provenance data.

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First Claim