These features are only available to partners who use YouTube Studio Content Manager.
A reference is a copy of a video or audio that YouTube uses as the source file for Content ID matching. A reference isn’t a publicly viewable YouTube video. A reference is a part of an asset and is one of three representations of your intellectual property in the YouTube rights management system.
You create a reference by claiming a video and turning on Content ID matching for the video. References can also be created by uploading spreadsheet templates.
From a reference file, YouTube creates a digital fingerprint that Content ID compares with videos uploaded to YouTube by other users. When Content ID detects a match, it automatically claims the video on your behalf and applies your match policy to it.
Make sure you have exclusive rights to the content before creating a reference. Improperly claiming content you don't own can result in penalties including legal liability and termination of partnership. Learn more in the reference delivery policy.