You can claim copyrights to your music content through Content ID. You must not use the system to claim content for which you don't have sufficient rights. Moreover, you're responsible for avoiding false claims, reference overlaps, invalid references and ownership conflicts.
Guidelines for Content ID
Use the following rules to avoid any issues. Note that the examples under each rule are provided for your information and this is not an exhaustive list of potential issues.
Exclusive right
You must have exclusive rights to the material in the reference file for all territories.
The following examples are ineligible for use in or as a Content ID reference:
Content licensed non-exclusively from a third party;
Content released under Creative Commons or similar free of charge/open licenses;
Public domain recordings, or compositions;
Clips from other sources used under fair use principles
Distinct reference content
All reference content must be sufficiently distinct.
The following examples are ineligible for use in or as a Content ID reference:
Karaoke recordings, remasters, sound-alike recordings, and dubbed content;
Processed versions of original tracks (sped up, slowed, reverb) and similar modified content;
Long DJ mixes, mashups, chart recordings, or similar compilations;
Recordings that include full music albums;
Sound effects, soundbeds, or production loops;
Compositions or clips from free sound libraries or freely distributed music.
Even if you hold exclusive copyrights to materials of this type, before choosing to deliver references to Content ID, make sure you hold exclusive copyrights to the content in all countries. In case of violation, you may be held legally liable.