YouTube’s Content ID algorithm detects any videos which contain audio that has been opted into the YouTube Content ID program. This includes your own videos, as they will of course be a match to the audio we’ve entered on your behalf.
If we are claiming on your videos this means you’ve not yet provided us with your YouTube Channel ID so we can whitelist it.
Once whitelisted, videos on your channel will no longer be claimed against. If you didn’t provide us with your ID to begin with, you can always email us with your ID and we’ll add it to the whitelist.