Very cool idea, have been wanting a ring-signature based auth method for some time (specifically via Monero as it already has ring signatures + key management natively included), so it's great to see some push here!

Edit: Would be especially cool to see this paired with Auth47 and/or lnurl-auth!

this is wicked cool for SN

SN gets a mention in this gist, but the idea is to prove that you own at least some amount of sats without giving up privacy. Great idea for making a site Sybil resistant.