This is just a concept, and the question is if it makes better offline money then eCash would do !?
I printed a small chip with a NTAG 424 inside.
It functions like a boltcard.
https://i.nostr.build...
I love the concept, I’m looking into something very similar to be used as rewards system for a coffee shop. Each customer that buys the nfc card gets sats for every purchase. How you got the nfc in a pin, I’d like to make one that can go in a keychain.
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