Ohio Rev. Code § 2107.20: Filing and recording of will - certified copy.

When admitted to probate every will shall be filed in the office of the probate judge and recorded, together with any testimony or prior judgment of a court declaring the will valid pursuant to division (A)(1) of section 5817.10 of the Revised Code, by the judge or the clerk of the probate court in a book to be kept for that purpose.

A copy of the recorded will, with a copy of the order of probate annexed to the copy of the recorded will, certified by the judge under seal of the judge's court, shall be as effectual in all cases as the original would be, if established by proof.