Which of the following is NOT part of the Content ID matching process?

DDEX (Digital Data Exchange) is a set of international standards for exchanging data between music companies. While crucial for music industry operations like distributing metadata and sales reports, it is not directly part of YouTube's Content ID matching process. Content ID primarily uses References (your copyrighted material), Assets (the digital representation of your intellectual property on YouTube), and Claims (the actions taken when Content ID finds a match) to identify and manage copyrighted content on the platform.