Okla. Stat. tit. 67 § 25
In all causes in which any abstracts, copies, minutes and extracts, or copies thereof, shall be received in evidence under any of the provisions of this article, all deeds or other instruments of writing appearing thereby to have been executed by any person, shall be presumed to have been executed and acknowledged according to law; and all sales under powers, and all judgments, decrees and legal proceedings, and all sales thereunder shall be presumed to be regular and correct, except as against the persons in this section before mentioned, and any person alleging any defect or irregularity in any such conveyance, acknowledgment, sale, judgment, decree or legal proceeding shall be held bound to prove the same, and any deed proved under the provisions of this article, purporting to be based upon the execution of any power or upon a judgment or decree shall be prima facie evidence of the existence of such power, judgment or decree: Provided, that nothing herein contained shall impair the effect of said destroyed record or notice.
Okla. Stat. tit. 67, § 25