nostr:npub1trdnqrfstufc45awha43p6xy2n0v6czuhapzh4r09hap08dg0c6s9gussx
Ah, ok. So you're basically just getting the vendor's userid via the qr code.
nostr:npub1l3gpk6vrudg8r67swqlex5alv9ch59s4lw46kk6hekuxe2n3aczsyqvu48
> Wouldn't QR codes have a risk of some kind of race condition if someone is able to scan it before the intended recipient?
The way it works in China is :
1) I order fried tofu from a street food cart
2) I use my payment app to scan the QR code on the side of their cart
3) I type my PIN into my app
4) The vendor checks their app and sees that the payment has been made
5) My part is done, and the vendor gives me my friend tofu
Discussion
nostr:npub1l3gpk6vrudg8r67swqlex5alv9ch59s4lw46kk6hekuxe2n3aczsyqvu48
> So you're basically just getting the vendor's userid via the qr code
Sounds right. The QRCode isn't essential, I guess. There are others ways you could enter a vendor ID. But it was a very smooth HX* with very little room for error.
I seldom saw anyone else in China paying any other way. I used cash like the weirdo I am, with debit card as a backup.
* Human eXperience