> With a (public) blockchain, this becomes a heck of a lot easier and more accessible Only if you assume that every country will actually collaborate and use t

> With a (public) blockchain, this becomes a heck of a lot easier and more accessible Only if you assume that every country will actually collaborate and use the same blockchain. Much more likely, in my opinion, is that each country will have its own incompatible blockchain and the end result won't be any different than what you described. I mean, I get what you're saying and its more likely that an international standard would come into use if no individual country has control over it, but I still think its unlikely.