Also being female and weighing 80 lbs, there is a high chance she isn't apbt
either. So trying to register her as one would be futile. But as said by the previous poster, you cannot register her pure bred with out paper work.
Now that doesn't mean you cannot register her. AKC and ADBA both I believe have a limited program. Which means she would have to be spayed and can be used in their sporting events. If that's what you are wanting.