From: Gregory Maxwell <gmaxwell@gmail•com>
To: Matthew Mitchell <matthewmitchell@godofgod•co.uk>
Cc: "bitcoin-development@lists•sourceforge.net"
<bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Segmented Block Relaying BIP draft.
Date: Thu, 13 Sep 2012 11:16:09 -0400 [thread overview]
Message-ID: <CAAS2fgSd6t038Yzb-Vy34J61xob+kVqA8pK+w1+ZwJ6XtQRJww@mail.gmail.com> (raw)
In-Reply-To: <FC0AF926-2CBD-49BA-A3B7-AF9D70A83CE4@godofgod.co.uk>
On Thu, Sep 13, 2012 at 10:05 AM, Matthew Mitchell
<matthewmitchell@godofgod•co.uk> wrote:
> @Gregory
>
>> But you only need to request the transactions you don't have. Most of
>> time you should already have almost all of the transactions.
>
> Yes, my proposal allows you to do this. You skip out transactions your already have. My proposal is simply better than others because it takes full advantage of the merkle tree structure with minor additions that are simple to implement. How hard is it to get the hashes at a particular level of a merkle tree? Not hard at all. How hard is it to place a selection of transactions from a block into a message Not hard at all. Implementation of the protocol requirements would be a piece of cake. The harder bit would be to create an algorithm to determine the best level of segmentation but this is not required to comply with the protocol.
Sorry, I'm still not seeing what the value is. How is the tree level
useful to anyone? If you did want to get only parts of the
transaction list, why not just ranges from the lowest level?
next prev parent reply other threads:[~2012-09-13 15:16 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-11 19:07 Matthew Mitchell
2012-09-11 19:42 ` Gregory Maxwell
2012-09-11 21:48 ` Matthew Mitchell
2012-09-11 23:22 ` Gregory Maxwell
2012-09-13 8:42 ` Mike Hearn
2012-09-13 14:05 ` Matthew Mitchell
2012-09-13 15:16 ` Gregory Maxwell [this message]
[not found] ` <2B95CF41-4304-4D2A-9ABF-198D97B7449B@godofgod.co.uk>
2012-09-13 15:46 ` Matthew Mitchell
[not found] ` <CAAS2fgQi8QFwU2M=wLiDodt3SmO48vUV5Sp3YCb1OmGJ5m=E7Q@mail.gmail.com>
2012-09-13 17:49 ` Matthew Mitchell
2012-09-13 18:59 ` Pieter Wuille
2012-09-13 20:24 ` Matthew Mitchell
-- strict thread matches above, loose matches on Subject: below --
2012-09-10 15:07 Matthew Mitchell
2012-09-10 15:14 ` Gregory Maxwell
2012-09-10 16:29 ` Matt Corallo
2012-09-10 18:59 ` Luke-Jr
2012-09-10 19:34 ` Matthew Mitchell
2012-09-10 19:53 ` Matt Corallo
2012-09-10 20:00 ` Gregory Maxwell
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