Can’t be wrong if you’ve got the rights 👍
An IPI (Interested Party Information) number is used to identify composers as rights holders. The number is assigned to you when signing up to a PRO (like PRS or ASCAP). You can use your IPI number when signing up with RouteNote Publishing, and it can be added to a release.
If you have any further queries, feel free to get in touch with us!
See also:
What is composition copyright?
What is a Spotify artist URI?
What is a high profile artist?