What is a reference?

The features described in this article are available only to partners who use YouTube's Content ID matching system.

A reference is a copy of an asset’s video or audio content that YouTube uses for Content ID matching. It is one of three representations of your intellectual property in the YouTube system. It is not a publicly viewable YouTube video, but rather a representation of an asset in YouTube’s Content ID system.

You create a reference by claiming a video that you own and enabling it for Content ID. You can also create a reference by uploading a reference file directly using the Content and Rights Administration Feed or one of the bulk update spreadsheet templates.

From a reference, YouTube creates a digital fingerprint that Content ID compares with videos uploaded by other YouTube users. When Content ID detects a match, it automatically claims the video on your behalf and applies your designated match policy to it.

Make sure you have exclusive rights to the content before creating a reference. Claiming content you do not own could result in serious penalties. See What kind of content is eligible for Content ID?.

An asset can have more than one reference. For example, a movie asset could have separate references with 16:9 and 4:3 aspect ratios. The reference need not be the same as a viewable YouTube video; see Choose effective references for more information.

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