RE: WHICH OF THE FOLLOWING COUNTRIES ALREADY HAS A DECENTRALIZED NATIONAL CRYPTOCURRENCY?
Iceland has one but you can not call it a "national". In Sweden the gouverment is investigate the possibility to introduce E-krona but that will not be totaly decentrilized. So - hrmmm - I do not know this time.
RE: WHICH OF THE FOLLOWING COUNTRIES ALREADY HAS A DECENTRALIZED NATIONAL CRYPTOCURRENCY?