You must have exclusive rights to all content you enable for Content ID matching. If your content features third-party material, such as public domain footage, short clips used under fair use principles, commercial breaks, or non-exclusive audio loops, be sure to exclude those segments from your reference file.

How to exclude timestamps from a reference in your YouTube account

If you uploaded a reference file that contains non-exclusive content, you can exclude specific time stamps from the Content ID tab in your account.

1. Go to Assets.
2. Click the title of the asset you’d like to update.
3. On the asset page, click References. Keep in mind that you can only exclude segments from assets with one or more active references.
4. Click the thumbnail for the reference you’d like to update.
5. Hover over the text displayed below “Excluded segments” and click the pencil icon.
6. Click Add new segment.
   
7. Input timestamps you want to exclude from the reference. Click Save.
8. Repeat steps 6 and 7 to exclude additional timestamps.

How to exclude timestamps from a reference in XML

When delivering a reference file through XML, you can exclude segments by following the syntax illustrated below:

See Exclude reference content from match consideration for more details about the XML option.

* Nguồn: Youtube