Patent ID: 8650588

Claim:
A method for end-to-end proof of display of digital content, comprising: generating a unique identifier (UID) for a triplet including an item of digital content, an identity of a playlist that includes the item of digital content, and an identity of a player on which the item of digital content is to be rendered; generating a visual identifier based on the UID and a timecode; encrypting the UID to provide an encrypted UID (EUID) and adding the EUID to the item of digital content in the playlist; authenticating the item of digital content in the playlist by: decrypting the EUID to obtain a decrypted UID; generating a computed UID for a triplet including the item of digital content read from the playlist, the identity of the playlist, and the identity of the player; and comparing the decrypted UID and the computed UID; rendering the item of digital content on a display screen; overlaying the visual identifier on the rendered item of digital content on the display screen; capturing the visual identifier on the display screen; and extracting the UID and timecode from the captured visual identifier.