Ohio Rev. Code § 3523.10: Certification of ratification of amendment.

If the convention agrees, by vote of a majority of the total number of delegates, to the ratification of the proposed amendment to the constitution of the United States, a certificate to that effect shall be executed by the president and secretary of the convention and transmitted to the secretary of state of this state who shall transmit the certificate under the great seal of the state to the secretary of state of the United States.