Ohio Rev. Code Ann. § 3127.40
(A) Unless the court issues a temporary emergency order pursuant to section 3127.18 of the Revised Code, upon a finding that a petitioner is entitled to immediate physical custody of the child, the court shall order that the petitioner may take immediate physical custody of the child unless the respondent establishes either of the following:
(1) That the child custody determination has not been registered and confirmed under section 3127.35 of the Revised Code and that one of the following circumstances applies: