Within ten (10) days after the sale or sales of said bonds, the Attorney General of the State of Oklahoma shall examine all of the proceedings of the Commission and all resolutions passed and actions taken by it in connection with the authorization, issuance and sale of such bonds and shall, if he finds such bond proceedings and sale to be constitutional and lawful, execute his certificate and file the same of record in the office of the Secretary of State of the State of Oklahoma, which said certificate shall read substantially as follows: “I have examined all proceedings had in connection with the issuance of the State of Oklahoma Building Bonds of 1955 in the aggregate principal amount of $.... dated ......., authorized and sold pursuant to Section 33, Article X, Constitution of Oklahoma, and laws of the State of Oklahoma enacted pursuant thereto, and find said proceedings and sale to be constitutional, lawful and regular in all particulars and that said bonds will be valid legal general obligations of the State of Oklahoma. Unless suit thereon shall be brought in the Supreme Court of the State of Oklahoma within thirty (30) days from the date of this certificate, said bonds shall be incontestable for all purposes. Date ........ Attorney General of the State of Oklahoma”. Upon the filing of such certificate, bonds issued pursuant to proceedings so examined by the Attorney General, shall be incontestable for all purposes upon the expiration of thirty (30) days from the date of such certificate, unless suit be brought in the Supreme Court of Oklahoma prior to the expiration of said period as provided herein.

A facsimile of such Attorney General's certificate shall appear on each bond so issued. The Supreme Court of Oklahoma is hereby vested with exclusive jurisdiction over any litigation involving the validity of any bonds issued under this act. All bonds shall bear the signature of the Governor and of the Secretary of State and shall bear the certificate required by Section 29, Article X, of the Constitution of Oklahoma. Such bonds shall also be registered by the Treasurer of the State of Oklahoma and a statement of such registration shall appear on the back of each bond. The Commission may, by resolution, prescribe that the seal of the State of Oklahoma, or the seals of any of the officers thereof, and any or all signatures required to appear on the bonds or coupons, with the exception of the Governor's signature on the bonds, may be facsimile seals and signatures.