Yeh, I don't think it's actually possible to verify without access to the Internet.
I don't like the idea of expiring QR codes in the same way your $1 note doesn't expire.
The only way to do this, I think, would be to use a trusted third party that would print these notes with controls and forgery protection similar to most fiat note production.
I agree! Which actually could be something really viable for small villages on a long enough timeline
Imagine places with no access to banking only needing a small server hub with optimized hardware that can act as a mini paper mint (but with a hard money standard)
Ideally you’d want almost like a ombudsman style global technician team who deploys to do repairs to keep things honest
It’s a v cool idea for eventually
