Horace Gray, United States v. North Carolina…
“ This court held that the judgment creditor was entitled to receive from the United States the amount of the judgment only, without interest; and Mr. Justice STRONG, in delivering the opinion, said: 'When the certificate is given, the claim of the plaintiff in the suit is practically converted into a claim against the government, but not until then. Before that time the government is under no obligation, and the secretary of the treasury is not at liberty, to pay. When the obligation arises, it is an obligation to pay the amount recovered; that is, the amount for which judgment has been given. ”
