Coinjoin using desktop (macOS), Android, and iOS: https://mempool.space/signet/tx/15a9ae17eacbfee4019b3713e81975f06a57e0bea78d798fe7e3b2d3df03a160
https://video.nostr.build/30322f193ceacbd5cbc2d1374ba05a045abadafdae76dac316ae34656e93ab2e.mp4
Its hard to find users and contributors on nostr for self custodial projects.
I think this can be done using aut-ct: https://0xparc.org/blog/zk-group-sigs
Cc: nostr:npub1vadcfln4ugt2h9ruwsuwu5vu5am4xaka7pw6m7axy79aqyhp6u5q9knuu7
Market makers in joinstr: https://uncensoredtech.substack.com/p/market-makers-in-joinstr

I don't use trusted third parties for my transactions. Never had any issues with privacy or security.
Point of failure is always the mint that issues ecash irrespective of how many are used in the app.
Bitcoin is ecash with no mint or trusted third parties. From discussing ecash without a mint in the '90s to the creation of ecash without mint (bitcoin) in 2009, we are back to using trusted third parties in 2024.



Related comment and pull request: https://github.com/bitcoin/bitcoin/pull/29415#issuecomment-1936003083
I have never used zaps to receive even a single sat.
Does anyone use self custodial tools on nostr? #asknostr
This is a 4 minute vid demo-ing how to verify the 'private proof of assets' using a desktop app. See https://reyify.com/blog/privacy-preserving-proof-of-taproot-assets for details and links.
https://video.nostr.build/8893d5a569ebec61c4cbbde491882159d9fda0ef35dc99cb78455c17033cd698.mp4
Awesome 🧡
You login with victim's nsec, and boom, their balance appears along with private messages.
Thanks for creating a bounty to hack nostr keys.
This version wont work on mainnet. A few more versions to fix bugs and improve things and it could be used on mainnet.
APK for v0.1.0 is available for testing joinstr:
https://gitlab.com/invincible-privacy/joinstr-kmp/-/releases
Feel free to join the simplex group chat if you have any questions or need signet coins for testing.
I just checked out the #joinstr website https://joinstr.xyz/ and this sounds damn awesome. I can't grasp the full details though. Has anyone used it? What's required? #AskNostr
Not used on mainnet yet however some users have tried on signet.
Binance uses zk-SNARKs for proof of solvency, but it made no difference: https://www.binance.com/en/blog/tech/how-zksnarks-improve-binances-proof-of-reserves-system-6654580406550811626
I like aut-ct, though I believe it has different use cases. In fact, I recently mentioned it in this thread: https://delvingbitcoin.org/t/proving-utxo-set-inclusion-in-zero-knowledge/1142/2


