Yes, this breed is extremely rare, and the lack of any known breeding pairs has led some people to speculate that this breed might already be extinct, though there are still plenty of anecdotes of a true Tiffany popping up somewhere. As a result, don’t expect this breed to just show up at an animal shelter randomly. If this breed still survives, it will be very difficult to track down and verify. Since there’s no centralized breed registry, it’s up to the individual to verify the cat’s identity.