The specification discloses a system and related method for tracking
access to digital information that involves combining biometric
information of a person seeking access with the digital information and a
digital signature. Each person who accesses the digital information has
their biometric and digital signatures combined in this manner. Thus, the
digital information itself reflects who has accessed the information.
Where the digital information is a video, the combining of the biometric
and digital signatures is done on a frame-by-frame basis.