when i have selected a pedigree puppy from a breeder when should i get the papers,and how will i know if they are authentic?

You should get your registration papers when you collect your puppy...if you do not make sure you get a written,signed letter saying KENNEL CLUB REGISTRATION PAPERS TO FOLLOW.
Do not accept any other type or registration...they are all worthless pieces of paper...only the kennel club is worth anything.
Make sure that the pups breeder signs their part so that you can register the pup as yours.
Archer