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From: Peter Todd <pete@petertodd.org>
Date: Wed, 06 Aug 2014 08:42:08 -0700
To: Christian Decker <decker.christian@gmail.com>,
Jeff Garzik <jgarzik@bitpay.com>
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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] deterministic transaction expiration
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
On 6 August 2014 08:17:02 GMT-07:00, Christian Decker <decker.christian@gmail.com> wrote:
>+1 for the new field, overloading fields with new meaning is definitely
>not
>a good idea.
To add a new field the best way to do it is create a new, parallel, tx format where fields are committed by merkle radix tree in an extensible and provable way. You'd then commit to that tree with a mandatory OP_RETURN output in the last txout, or with a new merkle root.
Changing the tx format itself in a hard-fork is needlessly disruptive, and in this case, wastes opportunities for improvement.
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