Ohio’s bid to become an American blockchain haven got a big boost by the state’s legislature this week. As reported earlier, a bill proposed by Sen. Matthew Dolan (R-Chagrin Falls) in the Ohio Senate would allow smart contracts using blockchain technology to carry the weight of a signature. S.B. 300 was and remains in committee. However, it may no longer be necessary to pass that bill separately. That’s because an amendment to another bill (S.B. 220), passed by both Ohio’s Senate and the House of Representatives on Wednesday night, means all that’s needed is Gov. John Kasich’s signature to make it law, which is expected to happen. As the amendment…