Your cat ID can be found twoand it will give you information including the ID in local chat, near where it says breeder.
If you cats have inworld li ways.
Click the cat or box inworld nks enabled there will be a click link straight to the pedigree
OR
Click Pedigree tab on website . you can do it from here, its on the tab bar. That will show all the cats you own and the pedigree of each.
To enable inworld pedigrees, tick the box on your cats which says enable inworld pedigree links.