Steps on how to find your Spotify URI number:
1. Open the Spotify desktop app or your web browser (https://open.spotify.com).
2. Search for your artist name and select:
3. Underneath the header section, hover your cursor over the three dots to view "More options" for the artist:
4. Hover your cursor over "Share" and "Copy link to artist:"
5. With your cursor hovering over "Copy link to artist," click "Option" on your keyboard and select "Copy Spotify URI." Your artist URI will be copied and ready to paste.