postr: payjoin using nostr \ stacker news ~bitcoin

postr: payjoin using nostr gitlab.com/1440000bytes/postr

4846 sats \ 7 comments \ @1440000bytes 10 Jun 2023 bitcoin freebie

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0 sats \ 1 reply \ @bitgould 10 Jun 2023

love to see the innovation

0 sats \ 0 replies \ @1440000bytes OP 11 Jun 2023

Inspired by your efforts to improve privacy with payjoin :)

0 sats \ 1 reply \ @nerd2ninja 10 Jun 2023

This repo is pretty easy to use. I say that as a ruby fanboy though. https://github.com/dtonon/nostr-ruby

In your gitlab you have this communications happening over DM. Are you expecting this to be a group chat? I ask because I'm thinking about how users who are trying to join would discover each other. I'm also trying to think about how you control for user input since even though you'd expect only coinjoining messages to appear here, you could just as easily get user input instead, even user input designed to exploit the code which is trying to batch transactions together.

0 sats \ 0 replies \ @1440000bytes OP 10 Jun 2023

Thanks for sharing nostr-ruby link.

Normally users ask for bitcoin address when they need to pay someone. In this case it would be npub. So P2N (pay to npub)
User input validation could be done for both sender and recipient to avoid such issues. Ideally this should be integrated in wallets so that users don't need to manually enter technical details like UTXO.