3 ms·

This seems like it would need to be independent of the card networks as well?

• keiferski 3y ago
  The data would need to stay local to your phone, otherwise this wouldn't prevent tracking from card networks, etc. You could add cash to your phone via a card, but the only record would be the raw amount, not what you're spending the money on. (In other words, exactly the same as taking cash from an ATM.)
  • ghaff 3y ago
    What happens if your phone breaks?
    • keiferski 3y ago
      It occurs to me now that what I'm proposing is not drastically different from how crypto works. In which case, there may be some way to back up the phone elsewhere, or maybe not – we don't have a backup for cash and if you lose it, too bad. Keep your transfer amounts small enough that it won't be a disaster if you lose the phone.