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From: Andrew Poelstra <apoelstra@wpsoftware•net>
To: Peter Todd <pete@petertodd•org>,
	Bitcoin Protocol Discussion
	<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] Debate: 64 bytes in OP_RETURN VS taproot OP_FALSE OP_IF OP_PUSH
Date: Wed, 1 Feb 2023 14:02:41 +0000	[thread overview]
Message-ID: <Y9pxAdm3kO1rr2kU@camus> (raw)
In-Reply-To: <764E460B-C0C6-47B8-A97E-F7CBC81FD645@petertodd.org>

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On Tue, Jan 31, 2023 at 09:07:16PM -0500, Peter Todd via bitcoin-dev wrote:
> 
> 
> On January 31, 2023 7:46:32 PM EST, Christopher Allen via bitcoin-dev <bitcoin-dev@lists•linuxfoundation.org> wrote:
> >All other things being equal, which is better if you need to place a
> >64-bytes into the Bitcoin blockchain? A traditional OP_RETURN or a spent
> >taproot transaction such as:
> >
> >OP_FALSE
> >OP_IF
> >OP_PUSH my64bytes
> >OP_ENDIF
> 
> What's wrong with OpPush <data> OpDrop?
>

This is a technical nit, but the reason is that <data> is limited to 520
bytes (and I believe, 80 bytes by standardness in Taproot), so if you
are pushing a ton of data and need multiple pushes, it's more efficient
to use FALSE IF ... ENDIF since you avoid the repeated DROPs.

-- 
Andrew Poelstra
Director of Research, Blockstream
Email: apoelstra at wpsoftware.net
Web:   https://www.wpsoftware.net/andrew

The sun is always shining in space
    -Justin Lewis-Webster


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  parent reply	other threads:[~2023-02-01 14:02 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-01  0:46 Christopher Allen
2023-02-01  2:07 ` Peter Todd
2023-02-01  2:22   ` Christopher Allen
2023-02-01  8:36     ` Kostas Karasavvas
2023-02-01 12:51       ` Peter Todd
2023-02-01 14:02   ` Andrew Poelstra [this message]
2023-02-02 11:22     ` Peter Todd
2023-02-02 11:45       ` Aymeric Vitte
2023-02-02 11:49         ` Peter Todd
2023-02-02 12:24           ` Aymeric Vitte
2023-02-01 12:59 ` Aymeric Vitte
2023-02-02 13:25 ` Rijndael
2023-02-03 11:15   ` Aymeric Vitte
2023-02-03 18:47     ` Christopher Allen
2023-02-04 14:11       ` Kostas Karasavvas
2023-02-04 17:01         ` Aymeric Vitte
2023-02-04 18:54           ` Christopher Allen
2023-02-04 20:55             ` Aymeric Vitte
2023-02-04 22:18               ` Christopher Allen
2023-02-04 23:09                 ` Aymeric Vitte
2023-02-05  0:04                   ` Peter Todd
2023-02-05 11:40                     ` Aymeric Vitte
2023-02-05 12:06                       ` Peter Todd
2023-02-05 12:47                         ` Aymeric Vitte
2023-02-05  0:11                   ` Russell O'Connor
2023-02-05  2:01                     ` Peter Todd
2023-02-05 18:12                       ` Russell O'Connor
2023-02-12 16:23                         ` Aymeric Vitte
2023-02-16 18:23                           ` Aymeric Vitte
2023-02-16 19:59                             ` Claus Ehrenberg
2023-02-17 10:56                               ` Aymeric Vitte
2023-02-05 18:06                     ` Andrew Poelstra
2023-02-17 12:49                     ` Anthony Towns
2023-02-18 18:38                       ` Aymeric Vitte

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