Their nose prints are unique Look at your dog's nose – did you know that there's literally no other nose like it? The nose print of a dog is as unique as a fingerprint, and your dog can be positively identified the same way. The Canadian Kennel Club has accepted nose prints as proof of identity since 1938. Now a company in the United States is offering a product to identify dogs by their nose prints. The company, ID Systems Integrators, developed a system called "Dognose ID" that, according to the Web site, provides a "tamperproof, painless and noninvasive way to provide a permanent record of any dog, anywhere." .