From: Peter Todd <pete@petertodd•org>
To: "Undiscussed Horrific Abuse,
One Victim of Many" <gmkarl@gmail•com>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] Why OpenTimestamps does not "linearize" its transactions
Date: Tue, 14 Jun 2022 11:34:36 -0400 [thread overview]
Message-ID: <YqiqjPternXI1AZ6@petertodd.org> (raw)
In-Reply-To: <CALL-=e4xA_SVfZp=nLgWRRPon3-6Ke0TE2J0qQrNFGQd7FOsqA@mail.gmail.com>
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On Tue, Jun 14, 2022 at 08:45:43AM -0400, Undiscussed Horrific Abuse, One Victim of Many via bitcoin-dev wrote:
> > The basic service that a timestamp service provides is “this content (or at
> > least a digest of this content) existed at least as early as this
> > timestamp.” It says nothing about how long before the timestamp the content
>
> OTS needlessly adds the requirement that the user publicize their .ots
> files to everybody who will make use of the timestamp.
>
> This does not provide the service you describe. It would be trivial to
> include enough cryptographic information in the original OP_RETURN, so
> as to obviate the need for publicizing the .ots file.
That approach does not scale. Via merkle trees, the OpenTimestamps system
routinely timestamps tens of thousands of messages with a single transaction:
https://petertodd.org/2016/opentimestamps-announcement#scalability-through-aggregation
Client-side validated .ots files are a necessary requirement to achieve this
scalability.
FWIW the most I've personally done is timestamped 750 million items from the
Internet Archive with a single transaction.
> If I send my .ots file to another party, a 4th party can replace it
> with their own, because there is no cryptographic pinning ensuring its
> contents. This changes the timestamp to one later, no longer proving
> the earliness of the data.
They can also simply delete their copy of the data, making it impossible to
prove anything about it.
--
https://petertodd.org 'peter'[:-1]@petertodd.org
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next prev parent reply other threads:[~2022-06-14 15:34 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-01 20:04 [bitcoin-dev] [Pre-BIP] Fee Accounts Jeremy
2022-01-18 16:12 ` Billy Tetrud
2022-01-18 17:43 ` Jeremy
2022-01-19 2:37 ` Billy Tetrud
2022-01-19 2:51 ` Jeremy
2022-01-19 4:53 ` Billy Tetrud
2022-01-19 7:32 ` Jeremy
2022-01-19 16:51 ` Billy Tetrud
2022-01-19 20:08 ` Jeremy
2022-01-20 5:23 ` Billy Tetrud
2022-02-10 6:58 ` Peter Todd
2022-02-10 8:08 ` Jeremy Rubin
2022-02-18 23:50 ` Peter Todd
2022-02-19 0:38 ` Jeremy Rubin
2022-02-19 9:39 ` Peter Todd
2022-02-19 17:20 ` [bitcoin-dev] [Lightning-dev] " darosior
2022-02-19 20:35 ` Peter Todd
2022-02-20 2:24 ` ZmnSCPxj
2022-02-20 2:39 ` ZmnSCPxj
[not found] ` <590cf52920040c9cf7517b219624bbb5@willtech.com.au>
2022-02-20 14:24 ` ZmnSCPxj
2022-02-20 16:29 ` Jeremy Rubin
[not found] ` <CAD5xwhgEeTETburW=OBgHNe_V1kk8o06TDQLiLgdfmP2AEVuPg@mail.gmail.com>
2022-02-20 16:34 ` ZmnSCPxj
2022-02-20 16:45 ` Jeremy Rubin
2022-02-20 16:29 ` [bitcoin-dev] " Jeremy Rubin
2022-04-10 19:32 ` Peter Todd
2022-04-11 13:18 ` Jeremy Rubin
2022-04-15 14:52 ` Peter Todd
2022-04-17 20:57 ` Jeremy Rubin
2022-04-28 12:15 ` Peter Todd
2022-05-02 15:59 ` Jeremy Rubin
2022-06-14 11:12 ` [bitcoin-dev] Why OpenTimestamps does not "linearize" its transactions Peter Todd
2022-06-14 11:39 ` Undiscussed Horrific Abuse, One Victim of Many
2022-06-14 11:53 ` Undiscussed Horrific Abuse, One Victim of Many
2022-06-14 12:28 ` rot13maxi
2022-06-14 12:45 ` Undiscussed Horrific Abuse, One Victim of Many
2022-06-14 13:55 ` Bryan Bishop
2022-06-14 15:06 ` digital vagabond
2022-06-14 15:34 ` Peter Todd [this message]
2022-06-14 17:15 ` Undiscussed Horrific Abuse, One Victim of Many
2022-06-14 20:33 ` Andrew Poelstra
2022-06-15 1:16 ` Undiscussed Horrific Abuse, One Victim of Many
2022-06-15 1:21 ` Undiscussed Horrific Abuse, One Victim of Many
2022-06-19 11:04 ` Peter Todd
2022-06-14 15:22 ` Peter Todd
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