As of 2014, the American Pit Bull Registry is the largest pit bull-specific registry in the world. Located in Antioch, Tenn., the registry is the home to the world's largest pedigree and the most advanced genealogical tracking system, according to the organization's website, .
The American Pit Bull Registry offers several pit bull-specific registration services, similar to the American Kennel Club's registration process. An 11-generation pedigree is available for $40, while comparative registries offer a seven-generation pedigree for up to $65, according to the American Pit Bull Registry.
The registry boasts a three-dimensional genealogical tracking system that provides owners with a history of a pit bull's entire family instead of a two-dimensional tracking system, which provides only parental information.