Nope, "looking" like a purebred wouldn't cut it; at least I don't think so.

I registered mine with AKC Registration Papers the breeders gave to us, when we first went to go pick them up.

Do you have a "family tree" of the dogs in Tikeya's lines? I think that could do it, if you have them. It would show she's purebred. Or, do you know if her sire and dam were registered?

Try going to www.akc.org. Email them and ask.