Seems like a plausible solution, although I don't think we can trust a single institution like github with that kind of ledger. Why not a public blockchain? We

Seems like a plausible solution, although I don't think we can trust a single institution like github with that kind of ledger. Why not a public blockchain? We need a large jurisdiction to experiment with these kinds of ideas though. Doesn't the U.S. have fifty of these??