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From: Jeff Garzik <jgarzik@bitpay.com>
Date: Mon, 5 May 2014 13:30:02 -0400
Message-ID: <CAJHLa0MSmbVsYccqzsNjyMMGT1Ffy3ULTJ_O9jv3ZbDHMpVbkQ@mail.gmail.com>
To: Sergio Lerner <sergiolerner@certimix.com>
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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Bug with handing of OP_RETURN?
Precedence: list

Correct, though that was somewhat unintentional.  The pushed-data size
is limited to <=3D 40 bytes, and as non-pushdata opcodes carry zero
pushed data, they are accepted.

On Sun, May 4, 2014 at 8:07 AM, Sergio Lerner <sergiolerner@certimix.com> w=
rote:
> El 03/05/2014 03:55 p.m., Mark Friedenbach escribi=C3=B3:
>>
>> On 05/03/2014 11:39 AM, Peter Todd wrote:
>>> The standard format ended up being exactly:
>>>
>>>     OP_RETURN <0 to 40-byte PUSHDATA>
>>>
> Please remember that the code actually does not implement the "standard
> format" (at least the last time I checked it).  Any opcode after
> OP_RETURN is accepted:
>
> For example: OP_RETURN OP_CHECKSIG
>
> is accepted.
>
>
>
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--=20
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc.      https://bitpay.com/