3 ms·
Using a card-to-card transfer of some sort of credits/units, with eventual online settlement. Using chip cards, obviously. The tech for this existed since at le
by huhtenberg 1y ago
Using a card-to-card transfer of some sort of credits/units, with eventual online settlement. Using chip cards, obviously. The tech for this existed since at least mid '00s.
- blibble 1y agothe original credit cards were entirely offline via paperslips phone auth was added later for "online" auth, then machines that automated it
- Multicomp 1y agoI mean that is what mondex was and oystercard is today. Closest we can get on the us is a prepaid refillable gift card. I Keep hoping for digital cash, no dice so far