nacl01: "With the US government maintaining the blockchain, they would eventually be watching every transaction."
Good point! So, DON'T have the US government maintain nor control the blockchain.
The US government can still mine the first 1/2 or 3/4 -- the low hanging fruit -- and hand them out to the citizens at one coin per citizens (no "favorites" and no double-dipping).
THEN the chain would then be let out into the wild for anyone who mine -- and keep the integrity of the chain. Would that (could that) work?
And, yes, of course you would need (or want) a Constitutional Amendment to grant independence of the chain, and establish the legal tender status, after the initial government "mining".
One of the big side-benefits I believe would accrue to my U$B scheme is that it would go a long, long, long way toward protecting the United States average CITIZENS protected from the collapse in the US dollar to ZERO worth, which is already well underway (at least 99.8% gone) and, imo, probably impossible to halt,
The equal distribution is also, imo, essential -- so it undoes a lot of the damage done to the middle class over the last 50 years and help equalize the GINI coefficient class division which the Leninists and banksters have created. You would want this U$B established with super-broad support, with little room for politics-as-usual further dividing the country. Of course, the "elites" wouldn't like my scheme in the least little bit. That is how we would know it was the right decision and would likely succeed.