My mint (Smiley Cash) is now publishing every mint and burn event on nostr using kind 4919 (still unreserved). It uses the public key exposed on the /v1/info endpoint as nostr identity. So if you want to find the notes you need to filter by pubkey and kind 4919.

Giving away free ecash from my mint: cashuBpGFkclNlbnQgZnJvbSBNaW5pYml0c2FteBtodHRwczovL3NtaWxlbW9qaS5jYXNoOjMzMzhhdIGiYWlIABGD9zXIPZ9hcIOjYWEYQGFjWCECkjcUbwWcdFAuYe_Kxi1lYfJUWaQ2XFPlVWLHayQf731hc3hAZTdhN2U3NTcyNjVmMDY0YzA5ODgyYzE4YTFiMmM3NTFjODBmNGNjZGIwYzg4ZWVjODVmOTliNTMyMTRmMTljZKNhYRggYWNYIQJWBfYoPUQABVtsz3v8ZNDf-6QhgxEiKeHD6eYDTB6z42FzeEA0MDA1MTI4ZjkyNDQwMTQ4Njg5NWUwMGU0N2NkODljZjljNGJlMWEzZDEwMmI4Y2RjZDM4YjNkZmZlZDBmNDZio2FhBGFjWCEChODQTm_070UHQJG2zVN53jktbO6a7Hi6a-1aceO2bWthc3hAZWE5YmE3ODBmODE2ZmVjMzQ2N2ZlYjZiNDM3ZTc4OWJjNDMxZDkyNjhmMjYzZDNmZTcxZTc3ZjljZjQ3MGM2NGF1Y3NhdA Comment if you want some

I am wondering if a digital voting scheme would be possible by combining ring signatures, blind signatures and nostr. With ring signatures a voter can sign their vote anonymously, and anybody can verify that "someone" that is registered as a voter has cast a valid vote. The problem with this is that a voter can cast multiple valid votes, while we'd want to constrain that to one. If everybody votes the cheating can be spotted, because the votes would surpass the number of voters. But even then, it would not possible to distinguish which votes are duplicate. If we introduce and authority figure, then we can use blind signatures. A voter creates their vote, turns it into a number, blinds that number and then communicates it to the authority. The authority only signs that blinded vote if it can confirm the identity of the voter and that it hasn't already cast a vote. The voter can then unblind the vote (only they can do that) and create a ring signature of the vote with the public keys of other plausible voters. Now I am thinking: could we split that authority amongst nostr relays and have it collaboratively blindly sign something?

Can I get 3 more followers so that my follower count is 404?

Oy, do you have a loiscense for that relay of yours?

gm

I am curious to know how Bitcoin ETFs are proven backed 1:1. Do they: * Dox the addresses with the funds? * Use some sort of zk non interactive proof? * Don't even bother publishing proof of reserves?

GitHub

Nostr Broadcast (or a better name TBD) by a1denvalu3 · Pull Request #155 · cashubtc/nuts

This NUT aims to address this privacy concern when wallets check for token melt status, while also possibly facilitating future implementations of ...

Feel free to chime in on this. This is to let cashu mints publish on nostr what they are doing. It would bring a lot of significant perks amongst which: * ecash receipt confirmation (without privacy leak) * wallet restoration (same privacy benefit) * a standard way of complying with PoL requirements. This is the associated NIP:

GitHub

nips/XX.md at cashu-data · a1denvalu3/nips

Nostr Implementation Possibilities. Contribute to a1denvalu3/nips development by creating an account on GitHub.

I tried to keep the NIP as simple as possible: it's basically only reserving 3 event kinds for cashu use. Lmkwyt.

gm