Patent attributes
Methods and a System are provided for proving media content was played on a display through capturing of audit information presented in watermarks when the content is played on the display. In a method, content watermarks are generated for content that is to be rendered on a display of a display device. An image sensor that is externally affixed to a corner of the display captures the watermarks as the content is rendered on the display, the image sensor captures the watermarks being played with the content from the area associated the corner where the image sensor is affixed. The image sensor captures the watermarks as images and streams the images back to the display device for storage. The stored watermarks are processed to verify that the corresponding content associated with the watermarks was played by the display device (visually rendered on the display of the display device).
