[Bitcoin-development] UUID to identify chains (payment protocol and elsewhere)

Jeff Garzik jgarzik at exmulti.com
Wed May 22 14:20:22 UTC 2013

On Wed, May 22, 2013 at 10:12 AM, Melvin Carvalho
<melvincarvalho at gmail.com> wrote:
> On 22 May 2013 16:07, Jeff Garzik <jgarzik at exmulti.com> wrote:
>> On Wed, May 22, 2013 at 6:27 AM, Melvin Carvalho
>> <melvincarvalho at 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.

Jeff Garzik
exMULTI, Inc.
jgarzik at exmulti.com

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