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From: Peter Todd <pete@petertodd.org>
Date: Mon, 19 Jan 2015 12:48:26 -0700
To: Jeff Garzik <jgarzik@bitpay.com>, Richard Brady <rnbrady@gmail.com>
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Cc: Bitcoin <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] BIP70: why Google Protocol Buffers
for encoding?
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
On 19 January 2015 12:09:13 GMT-07:00, Jeff Garzik <jgarzik@bitpay.com> wrote:
>Text formats such as XML or JSON are far less deterministic, are more
>loosely specified, have wide variance in parsing, are not very
>hash-able,
>the list goes on.
Protocol buffers isn't any more hashable than XML or json - round trips aren't deterministic with standard protobuf libraries. To make it deterministic you end up creating a new standard.
I have this problem for an asset representation standard for one of my clients, and I've reluctantly had to roll my own format.
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