When you submit a new song to us we can do that for you!
If your song is a previous release that you're transferring over to trac, please make sure you re-confirm your UPC and ISRC codes and then re-upload the songs as a previous release with these codes.
The UPC is your Release Identifier. The Universal Product Code (UPC) is the standard unique identifier for the release that carries your audio or video performance(s). The UPC may identify a single, an EP, an LP and the various versions thereof (digital download, CD, vinyl, tape, or DVD).
This is different from an ISRC code. Read more about ISRC's here
Source: isrc.com