Ohio Rev. Code Ann. § 113.05
(A) The state treasury consists of the moneys, claims, bonds, notes, other obligations, stocks, and other securities, receipts or other evidences of ownership, and other intangible assets of the state that are required by law to be deposited in the state treasury or are otherwise a part of the state treasury. All assets of the state treasury shall be kept in the rooms assigned the treasurer of state, with the vaults, safes, and other appliances therein; provided, that:
(B) The custodial funds of the treasurer of state consist of the moneys, claims, bonds, notes, other obligations, stocks, and other securities, receipts or other evidences of ownership, and other intangible assets that are required by law to be kept in the custody of the treasurer of state but are not part of the state treasury. All assets of the custodial funds of the treasurer of state shall be kept in either or both of the following: