Ohio constitution
Article VIII: public debt and public works
Section 7

The faith of the state being pledged for the payment
of its public debt, in order to provide therefore,
there shall be created a sinking fund, which shall be
sufficient to pay the accruing interest on such debt,
and, annually, to reduce the principal thereof, by a sum
not less than one hundred thousand dollars, increased
yearly, and each and every year, by compounding, at
the rate of six per cent per annum. The said sinking
fund shall consist, of the net annual income of the public
works and stocks owned by the state, of any other
funds or resources that are, or may be, provided by
law, and of such further sum, to be raised by taxation,
as may be required for the purposes aforesaid.