📅 Original date posted:2022-06-27
📝 Original message:Hi,
On Mon, Jun 27, 2022 at 2:14 PM Alfred Hodler via bitcoin-dev <
bitcoin-dev at lists.linuxfoundation.org> wrote:
> 2. Notification transactions still exist but no longer leave a privacy
> footprint on the blockchain. Instead, a notification transaction is simply
> a single OP_RETURN containing a value that only Alice and Bob can
> calculate. If Alice's notification transaction uses UTXOs not associated
> with her identity, there is never a footprint showing that either her or
> Bob are using private payments. If Alice uses tainted coins, only she is
> exposed as a user of Private Payments but Bob still isn't.
>
That's a neat trick. What about not using OP_RETURN at all, and just
publishing on a tor hidden service that other wallets check? Alice
wouldn't have to expose on-chain that she is a sender of a private payment.
- Bryan
https://twitter.com/kanzure
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Bryan Bishop [ARCHIVE] /
npub1vt…jsjpg
2023-06-07 23:10:46
in reply to nevent1q…rg9p
Author Public Key
npub1vtwuk4rjyj6zrq3tv2z9lvdm6a7g8zujf0gz9q2vljlztdaqw36sjjsjpgPublished at
2023-06-07 23:10:46Event JSON
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"content": "📅 Original date posted:2022-06-27\n📝 Original message:Hi,\n\nOn Mon, Jun 27, 2022 at 2:14 PM Alfred Hodler via bitcoin-dev \u003c\nbitcoin-dev at lists.linuxfoundation.org\u003e wrote:\n\n\u003e 2. Notification transactions still exist but no longer leave a privacy\n\u003e footprint on the blockchain. Instead, a notification transaction is simply\n\u003e a single OP_RETURN containing a value that only Alice and Bob can\n\u003e calculate. If Alice's notification transaction uses UTXOs not associated\n\u003e with her identity, there is never a footprint showing that either her or\n\u003e Bob are using private payments. If Alice uses tainted coins, only she is\n\u003e exposed as a user of Private Payments but Bob still isn't.\n\u003e\n\nThat's a neat trick. What about not using OP_RETURN at all, and just\npublishing on a tor hidden service that other wallets check? Alice\nwouldn't have to expose on-chain that she is a sender of a private payment.\n\n- Bryan\nhttps://twitter.com/kanzure\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20220627/9e90ead7/attachment-0001.html\u003e",
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