- and I'm 99% sure they are internet connected. I'm not sure if distributing private keys at the location is feasible or if some sort of redemption code would make it simpler.
Even without internet the machine could print a
dollar denominated voucher for Coinbase or a similar operator. The user would go to the website and be guided through setting up an account if he doesn't have one. His dollars would be converted to Bitcoin at the time he enters the voucher number on the site at the then current rate. Coinbase would collect dollars from CoinStar.