Thread by @econoalchemist

1/19 STONEWALLx2, a privacy enhancing tool developed by @SamouraiWallet that you can use right now to start minimizing your on-chain footprint.

A thread that explains how to use this tool step-by-step with a video example as well.

2/19 This thread is the short version of a more detailed article that can be found on the @BitcoinMagazine website here:
bitcoinmagazine.com/guides/how-to-…

3/19 As well as my website here:
econoalchemist.com/post/stonewall…

4/19 Here is a video demonstrating how this works on your Android device:

5/19 And here is the same video with Spanish subtitles, translated by the one & only @ChavoGnuGrowers, thank you!

6/19 StonewallX2's can be built between two collaborators working in Cahoots, using their PayNyms. Unlike a Stowaway tx, Stonewallx2's can be sent to a 3rd party.

7/19 The on-chain footprint is also identical to a single person Stonewall. This is good for creating reasonable doubt & breaking Common Input Ownership Heuristics. And even better when the tx is built from the collaborators' post-mix Whirlpool wallets.

8/19 In the video example, Bob is collaborating with Alice to make a payment to Charlie. Bob chose to spend from his post-mix Whirlpool wallet.

Both Alice & Bob will provide inputs to the transaction. One of the outputs will be the payment to Charlie.

9/19 Bob starts by setting up the tx with Charlie's receiving address. Then entering the #BTC amount, adding the Cahoots privacy addon, & selecting Stonewallx2 and online participant.

10/19 This initiates Bob's PayNym contact list for Bob to choose his collaborator, Alice. Collaborators need to be following each other but not necessarily connected to each other. With Alice's PayNym selected, Bob can review & set the miner fee. Then he is ready to start.

11/19 At this point, Bob needs to communicate with Alice out-of-band to alert her to watch for the tx request. Then Alice knows to select the 'Receive online Cahoots' option from her wallet.

12/19 Alice will pay half the miner fee for the added privacy benefit. Once Alice approves the request, the transaction is automatically built encrypted over Tor with Soroban. Geographic distance is no issue & this only takes seconds to complete. It's amazing.

13/19 Bob get's one last chance to review everything, then he can broadcast the tx. Stonewall & Stonewallx2 tx's have many inputs and always 4 outputs, with 2 being identical.

kycp.org/#/7d64210cb1fe…

14/19 In this case, Alice receives one of the identical outputs as a decoy, she also receives her change as another output. Charlie receives his payment from Bob. And Bob receives his change back. To an external observer, the inputs could have been 1 person or 2.

15/19 @SamouraiWallet has been on the bleeding edge of #Bitcoin privacy development for years & they have a lot to offer. Jump in their Telegram group to learn more: t.me/SamouraiWallet

16/19 @RoninDojoUI built the perfect full node companion for your Samourai Wallet. Remember, if you're not running your own node then you're trusting someone else's. When you're ready to make that step, jump in Ronin Dojo's Telegram group to learn more: t.me/RoninDojoUI

17/19 You also have the unique opportunity to hear it all directly from a Chain Spy tomorrow. Get your questions ready and join @biTcOinEneMiEs as he talks with @ErgoBTC

https://twitter.com/biTcOinEneMiEs/status/1375477648110059528?s=20

18/19 In other news, @SamouraiWallet has decided to permanently lower the Whirlpool fees for their 0.5 & 0.05 pools. You can mix an unlimited amount of #bitcoin for one low fee and remixes are always free.

https://twitter.com/SamouraiWallet/status/1375423951778762754?s=20

19/19 Thanks for reading! I hope that this thread helped you understand Stonewallx2 a little better & got you thinking about your on-chain footprint & the tools available to you to guard your privacy.

Also check out the brief Q&A with @SamouraiWallet 👇
econoalchemist.com/post/stonewall…