Or you could actually prove it without a third party, cryptographically, using a ZKP...
Discussion
nostr:npub1vadcfln4ugt2h9ruwsuwu5vu5am4xaka7pw6m7axy79aqyhp6u5q9knuu7 Any software already available that does this?
That's zk wrt your private key, but not wrt your utxos. (See my other answer)
Ah thx! So your tool allows to proof ownership
of a single utxo via zkp, even if an address has multiple utxos?
Multiple utxos, but only taproot. Also it is restricted to one utxo per address.. that could be changed iirc.
cool stuff!
This is very cool.
Any plans for a UI? Or perhaps this is something that could be added as a feature to an app like Sparrow?
There is a UI there, but, to some extent what would be needed is some backend infrastructure - need to keep taproot utxo snapshots that can be referenced (each proof refers to a specific set of utxos at a particular point in time).
Kind of stopped working on it this year as there's no interest from anyone else in collaborating.
I made software that does it https://github.com/AdamISZ/aut-ct (see the auditor-docs subdirectory).
zapping you i get this error:
boolean com.fasterxml.jackson.databind.JsonNode.isBoolean()' on a null object reference
Yes not resolvable rn sorry
cashuBo2FteCJodHRwczovL21pbnQubWluaWJpdHMuY2FzaC9CaXRjb2luYXVjc2F0YXSBomFpSABQBVDwSUFGYXCBo2FhGEBhc3irWyJQMlBLIix7Im5vbmNlIjoiZTUzMTE0NTg2YzMwOTk5NWY5YjczYmU4M2I3OWZiOWY5OWM1Mjg5OTk4MDQxMjkxZTI2MGM1MmNiZDQ5NTIzMCIsImRhdGEiOiIwMjY3NWI4NGZlNzVlMjE2YWI5NDdjNzQzOGVlNTE5Y2E3Nzc1Mzc2ZGRmMDVkYWRmYmE2Mjc4YmQwMTJlMWQ3MjgiLCJ0YWdzIjpbXX1dYWNYIQP0yePpoFbR4dvhj_8-6gB_3oiEVO8yrlurV2eYiTdWKA