You do it USA and it has been done by conceptual artist Jonathon Keats when he created the quantum bank

http://motherboard.vice.com/blog/bankers-are-both-furious-and-indifferent-about-the-quantum-atm
http://physicsbuzz.physicscentral.com/2013/06/quantum-banking-comes-to-new-york.html

No law against it so long as the ultimate value is set against US dollar he simply made 1 Quantum dollar = 1 US dollar.

Bit coin was only a concern to USA because it didn't use US dollar as it's value.


I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.