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From: Bram Cohen <bram@bittorrent•com>
To: Peter Todd <pete@petertodd•org>
Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] A Better MMR Definition
Date: Thu, 23 Feb 2017 19:02:36 -0800	[thread overview]
Message-ID: <CA+KqGkq7gavAnAk-tcA+gxL2sWpv3ENhEmHrQHaPdyAsKrLjGg@mail.gmail.com> (raw)
In-Reply-To: <20170224025811.GA31911@savin.petertodd.org>

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On Thu, Feb 23, 2017 at 6:58 PM, Peter Todd <pete@petertodd•org> wrote:

>
> So to be clear, do you agree or disagree with me that you *can* extract a
> compact proof from a MMR that a given output is unspent?
>

After wading through your logic on how updates are done, I agree that that
can be done, but apples to apples compact proofs can also be done in a utxo
commitment, and proofs of the validity of updates can be done in a utxo
commitment, so there isn't any performance advantage to all that extra
complexity.

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  reply	other threads:[~2017-02-24  3:02 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-23  1:15 Peter Todd
2017-02-23  3:07 ` Bram Cohen
2017-02-23  7:41   ` Peter Todd
2017-02-23 17:53 ` Chris Priest
2017-02-23 18:19   ` Peter Todd
2017-02-23 18:28     ` G. Andrew Stone
2017-02-23 18:31       ` Peter Todd
2017-02-23 23:13   ` Bram Cohen
2017-02-23 23:51     ` Peter Todd
2017-02-24  0:49       ` Bram Cohen
2017-02-24  1:09         ` Peter Todd
2017-02-24  2:50           ` Bram Cohen
2017-02-24  2:58             ` Peter Todd
2017-02-24  3:02               ` Bram Cohen [this message]
2017-02-24  3:15                 ` Peter Todd
2017-02-24  3:32                   ` Bram Cohen
2017-02-24  4:36                     ` Peter Todd
2017-02-24 22:20                       ` Bram Cohen
2017-02-25  4:12                         ` Peter Todd
2017-02-25  6:23                           ` Bram Cohen
2017-02-28 16:43                             ` G. Andrew Stone
2017-02-28 23:10                               ` Bram Cohen
2017-02-28 23:24                                 ` Pieter Wuille
2017-03-01  1:47                                   ` Bram Cohen
2017-03-01  1:56                                     ` Peter Todd
2017-03-01 22:31                             ` Peter Todd
2017-03-31 20:38                               ` Bram Cohen
2017-04-01 10:18                                 ` praxeology_guy
2017-04-01 19:46                                   ` praxeology_guy

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