Patent ID: 8335922
Filing Date: 2012-12-18
Classification: H04N

Abstract:
1. A non-transitory recording medium that records a computer-readable digital information verification program in order to cause a computer to execute a method of verifying digital information, the digital information verification program causing a computer to execute a process comprising: generating feature amount information for identifying the digital information, the feature amount information including first information generated from meta information of the digital information and second information generated from content information of the digital information, the first information including a plurality of first items for operations of the digital information and the second information including a plurality of second items for the content information; registering the feature amount information generated by the generating and digital information in association with each other; and using the generating to generate feature amount information of second digital information corresponding to first digital information which is the digital information registered by the registering, the second digital information being obtained by changing the first digital information, specifying the changed part of the second digital information based on the first digital information and specifying how the change has been made based on the first digital information by comparing the first item in the feature amount information of the first digital information with the first item in the feature amount information of the second digital information and by comparing the second item in the feature amount information of the first digital information with the second item in the feature amount information of the second digital information.