source: Anyone may register a pedigree with the college, where they are carefully internally audited and require official proofs before being altered.
target: Pedigrees are internally audited and require official proofs.  Anyone may register one with the college.
references: Pedigrees are internally audited and require official proofs.  Anyone may register one with the college. The college accepts pedigrees from anyone. They carefully check and require proof. Anyone can register a pedigree with the college.  The pedigree is then audited.  Official proof is required before it can be changed. Anyone may register a pedigree with the college, where they will be carefully checked. Pedigrees registered at the college are audited and need proof before being altered. Anyone can give a pedigree to the college, but the college checks the pedigree very carefully after they get it. The person who gives the pedigree to the college has to prove that it is real. Anyone could sign up a pure breed with the college where they check carefully and make you have proof before they change things. Anyone can register a pedigree with the college, where they are carefully internally audited and require official proofs before being altered. Anyone may register a pedigree with the college. They are carefully checked and require official proofs to change. A pedigree can be registered with the college, where it will then be internally audited.