how do I get papers on my dog 12

https://post-wiki.win/index.php/How_to_Obtain_Dog_Papers_for_Designer_and_Mixed_Breeds

I'm trying to figure out how to get official papers for my dog, like registration or health certificates, maybe from my vet or local animal control. I've heard about microchipping and licenses, but I'm not sure what's needed for travel or just to prove ownership. Any tips on the first steps?