Freaking out a bit over my cats ashes

I picked up my cats ashes today and I started reading online about how there is communal and private. I also read people get a certificate and a metal plate for ID is mixed in with the ashes.

I’ve never cremated a pet before and everything happened so fast and I was emotional. I didn’t know about these things. My vet did the at home euthanasia and took my cat afterwards, I do trust her. But I didn’t recieve fur clippings, no certificate, and no plate in the ashes. Now I am devastated thinking the ashes might not be his.