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From: "Luke-Jr" <luke@dashjr.org>
To: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] UUID to identify chains (payment protocol and elsewhere)
Date: Wed, 22 May 2013 14:29:47 +0000	[thread overview]
Message-ID: <201305221429.49704.luke@dashjr.org> (raw)
In-Reply-To: <CA+8xBpc4deHT7uY+N+yx_qOEvLV3T2G7aXqHtq=nRPGd6=2O=g@mail.gmail.com>

On Wednesday, May 22, 2013 2:20:22 PM Jeff Garzik wrote:
> On Wed, May 22, 2013 at 10:12 AM, Melvin Carvalho
> 
> <melvincarvalho@gmail.com> wrote:
> > On 22 May 2013 16:07, Jeff Garzik <jgarzik@exmulti.com> wrote:
> >> On Wed, May 22, 2013 at 6:27 AM, Melvin Carvalho
> >> 
> >> <melvincarvalho@gmail.com> wrote:
> >> > Some out of band algo/hash could work so long as there was a one to
> >> > one relationship between the described object and the UUID.  In this
> >> > case the
> >> > gensis block may not uniquely identify a coin.
> >> 
> >> What does this mean?  It seems extremely unlikely that two different
> >> genesis blocks will have the same hash.
> > 
> > Two coin ecosystems could have the same genesis block
> 
> That has really, really bad side effects.  The whole point of the
> bitcoin consensus algorithm is to avoid situations like this.
> 
> We don't want to encourage that behavior with code.

In some cases, multiple currencies can use the same blockchain (not just the 
singular genesis block). This use case *is* something we want to encourage - 
no reason for people to make an entirely new blockchain if their altcoin fits 
within the scope of Bitcoin or another existing altchain.



  reply	other threads:[~2013-05-22 14:30 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-20 23:59 [Bitcoin-development] UUID to identify chains (payment protocol and elsewhere) Mark Friedenbach
2013-05-21  2:45 ` Jeff Garzik
2013-05-21  3:30   ` Mike Hearn
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 [this message]
2013-05-22 14:55           ` Jeff Garzik
2013-05-22 15:59             ` Gavin Andresen

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