I’ve built #nostr #safebox to be independent of the web app and nip-05 provider. The npub of the safebox is its address and numerous lightning address and nip-05 providers can resolve to the same safebox instance.
First off here are the resources from the ICANN for blockchain integration including payments.
https://www.icann.org/en/system/files/files/octo-039-17oct24-en.pdf
Discussion
I’d like to try it out. I like the concept of using Web NFC and NDEF. What size cards are you using?
I have been digging around in IS0 7816, ISO 14443, and Java Card.
https://gnupg.org/ftp/specs/OpenPGP-smart-card-application-3.4.1.pdf
NTAG215. 504 bytes. Only works with Chrome/Android Web NFC for now.
I tried this size and my CASHU tokens were too big? How are you writing the claims to the card?
Yeah, I use a completely different approach for #nostr #safebox. I replicate what’s done by the card networks by generated an encrypted secret on the card. The token on the nfc card gets submitted along with the payment request, decrypted and sent along to a NWC server to execute the payment instruction.
Do you have an Open Git repository for this specifically? I am going to try it.