What a dog registration certificate can and cannot prove
https://caninehomeguide.fairmontdigest.com/posts/what-a-dog-registration-certificate-can-and-cannot-prove
A dog registration certificate proves that your dog is microchipped and registered with a local authority, which is legally required in many places. It shows ownership details and helps reunite you with your pet if lost. However, it does not prove vaccinations, health status, or purebred lineage, nor does it guarantee your dog's temperament or training.