Fish Pot & GrillTill 1
One payment, start to finish
TimeWhat happenedIn the margin
12:41:07
Andre keys in J$2,070 and taps Collect.
Two fish plates and a box juice. The amount comes off Andre’s till and nowhere else.
What protects itThe till sets the amount, fresh for this sale. There is no printed code taped to the counter for somebody to swap for their own.
12:41:08
A code appears, made for this sale only.
It carries one reference, one amount and a clock. When the clock runs out the code is dead: nothing can be paid against it, and a photo of it is worth nothing to anyone. The reference is how Andre, Marcia and KRU can all point at the same payment afterwards.
- Ref
- KRU-1041-207000
- Amount
- J$2,070.00
- Good for
- 2:00
What protects itOne sale, one amount, two minutes. Yesterday’s screenshot pays for nothing.
12:41:20
Marcia scans it with her KRU app.
Your partRead the name and the amount on your own screen before you confirm. If either one is wrong, stop.
12:41:26
Marcia pays J$2,111.40.
- Lunch
- J$2,070.00
- Customer fee · 2%
- J$41.40
- Marcia pays
- J$2,111.40
What protects itThe fee is added on top of the price, in plain sight. It is never folded into what Andre charged.
12:41:27
Andre's till shows the tick.
Paid from KRU wallet. J$2,070.00 is in his balance now, all of it.
Your part, if you run the tillTrust your own tick. A sale is paid when your till says so, not when a customer holds up their phone.
or 12:43:08
If the clock had run out first
Nothing is charged. Andre taps Collect again and a fresh code appears for the same amount.