From: Mike Hearn <mike@plan99•net>
To: Jeff Garzik <jgarzik@exmulti•com>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] UUID to identify chains (payment protocol and elsewhere)
Date: Mon, 20 May 2013 20:30:00 -0700 [thread overview]
Message-ID: <CANEZrP10UpCEKFZiTrnRJxiwJW6tmfZRLJpYzVceew5tXXugaw@mail.gmail.com> (raw)
In-Reply-To: <CA+8xBpeUOsZq=3jP7GMJgnxH1Vh9GmPydzXWuScCjDyVUf2YVg@mail.gmail.com>
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Bitcoinj already has such chain id's and we use standard Java style reverse
DNS names: org.bitcoin.main, etc. If we want a more global naming system
that seems like a good compromise between uniqueness and readability.
On 20 May 2013 19:45, "Jeff Garzik" <jgarzik@exmulti•com> wrote:
> On Mon, May 20, 2013 at 7:59 PM, Mark Friedenbach <mark@monetize•io>
> wrote:
> > So as to remain reasonably compliant with RFC 4122, I recommend that we
> > use Version 4 (random) UUIDs, with the random bits extracted from the
> > double-SHA256 hash of the genesis block of the chain. (For colored
> > coins, the colored coin definition transaction would be used instead,
> > but I will address that in a separate proposal and will say just one
> > thing about it: adopting this method for identifying chains/coins will
> > greatly assist in adopting the payment protocol to colored coins.)
>
> This proposal seems closer to Version 5 than Version 4, in spirit.
> But given that useful content may be deduced from UUID, it is not
> truly applicable to either. A bitcoin-specific version 6, if you
> will.
>
>
> > And some example chain identifiers:
> >
> > mainnet: UUID('6fe28c0a-b6f1-4372-81a6-a246ae63f74f')
> > testnet3: UUID('43497fd7-f826-4571-88f4-a30fd9cec3ae')
> > namecoin: UUID('70c7a9f0-a2fb-4d48-a635-a70d5b157c80')
>
> Note that, as this example unintentionally implies, humans are going
> to want a side-by-side mapping /anyway/, just to make it readable and
> usable to humans.
>
> Almost all useful multi-chain software will require a readable
> shortname string anyway, the thing this proposal wishes to avoid.
>
> --
> Jeff Garzik
> exMULTI, Inc.
> jgarzik@exmulti•com
>
>
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next prev parent reply other threads:[~2013-05-21 3:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 23:59 Mark Friedenbach
2013-05-21 2:45 ` Jeff Garzik
2013-05-21 3:30 ` Mike Hearn [this message]
2013-05-21 4:00 ` Mark Friedenbach
2013-05-21 4:04 ` Luke-Jr
2013-05-22 10:27 ` Melvin Carvalho
2013-05-22 14:07 ` Jeff Garzik
2013-05-22 14:12 ` Melvin Carvalho
2013-05-22 14:20 ` Jeff Garzik
2013-05-22 14:29 ` Luke-Jr
2013-05-22 14:55 ` Jeff Garzik
2013-05-22 15:59 ` Gavin Andresen
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