How can you verify your Doberman pupp is pure?

To verify if your Doberman puppy is purebred, you can start by obtaining its pedigree papers from the breeder, which should trace its lineage back to registered Doberman lines. Additionally, consider having the puppy undergo a DNA test through a reputable service that specializes in breed verification. Finally, consult with a veterinarian or a breed expert who can assess physical traits and characteristics typical of purebred Dobermans.