I think everyone is pretty much following this standard now.

- Eric
On Jan 14, 2015 12:58 PM, "devrandom" <c1.sf-bitcoin@niftybox.net> wrote:

> At CryptoCorp we recommend to our customers that they sort
> lexicographically by the public key bytes of the leaf public keys.  i.e.
> the same as BitPay.
>
> On Wed, 2015-01-14 at 17:37 +0100, Ruben de Vries wrote:
> > For p2sh multisig TXs the order of the public keys affect the hash and
> > there doesn't seem to be an agreed upon way of sorting the public
> > keys.
> >
> >
> > If there would be a standard (recommended) way of sorting the public
> > keys that would make it easier for services that implement some form
> > of multisig to be compatible with each other without much hassle and
> > making it possible to import keys from one service to another.
> >
> >
> > I'm not suggesting forcing the order, just setting a standard to
> > recommend, there doesn't seem to be much reason for (new) services to
> > not follow that recommendation.
> >
> >
> > Ryan from BitPay broad this up before
> > (https://sourceforge.net/p/bitcoin/mailman/message/32092958/) and in
> > bitcore they've implemented lexicographical sorting on the hex of the
> > public key.
> > In a short search I can't find any other library that has a sorting
> > function, let alone using it by default, so bitcore is currently my
> > only reference.
> >
> >
> >
> >
> > ​Ruben de Vries
> > ​CTO, BlockTrail
> >
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> --
> Miron / devrandom
>
>
>
>
>
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