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From: Ruben Somsen <rsomsen@gmail•com>
To: Bryan Bishop <kanzure@gmail•com>,
	 Bitcoin Protocol Discussion
	<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] [BIP proposal] Private Payments
Date: Mon, 27 Jun 2022 22:35:34 +0200	[thread overview]
Message-ID: <CAPv7TjZ265K8oTaz=qum9w-HYMp-GPawq=TNcp-e_WsPcCQAOA@mail.gmail.com> (raw)
In-Reply-To: <CABaSBaxinzeVuOAmGRoVttMN9puQunZNy3MVuTxk1U3=bLrg6A@mail.gmail.com>

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Hi Bryan,

>just publishing on a tor hidden service that other wallets check

The problem is that this data is critical to access the funds. By putting
it on-chain you're guaranteeing that it's always available when you restore
your funds from backup.

Cheers,
Ruben

On Mon, Jun 27, 2022 at 10:21 PM Bryan Bishop via bitcoin-dev <
bitcoin-dev@lists•linuxfoundation.org> wrote:

> Hi,
>
> On Mon, Jun 27, 2022 at 2:14 PM Alfred Hodler via bitcoin-dev <
> bitcoin-dev@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
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists•linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>

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  reply	other threads:[~2022-06-27 20:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-27 18:17 Alfred Hodler
2022-06-27 20:20 ` Bryan Bishop
2022-06-27 20:35   ` Ruben Somsen [this message]
2022-06-28 12:40   ` Alfred Hodler
2022-06-27 20:30 ` Ruben Somsen
2022-06-28 12:35   ` Alfred Hodler
     [not found]     ` <PS2P216MB10894F1EE83AFA648003C6339DBF9@PS2P216MB1089.KORP216.PROD.OUTLOOK.COM>
2022-07-05  9:38       ` Alfred Hodler
2022-06-28 23:33   ` Peter Todd
2022-06-29 22:33 ` Clark Moody
2022-07-01 12:41   ` Alfred Hodler
2022-07-01 17:37     ` Christopher Allen
2022-07-11 10:28 ` Alfred Hodler

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