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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Chain pruning
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Okay...will let myself out now ;P


On Thu, Apr 10, 2014 at 12:54 PM, Ricardo Filipe
<ricardojdfilipe@gmail.com>wrote:

> that's what blockchain pruning is all about :)
>
> 2014-04-10 17:47 GMT+01:00 Brian Hoffman <brianchoffman@gmail.com>:
> > Looks like only about ~30% disk space savings so I see your point. Is
> there
> > a critical reason why blocks couldn't be formed into "superblocks" that
> are
> > chained together and nodes could serve a specific superblock, which
> could be
> > pieced together from different nodes to get the full blockchain? This
> would
> > allow participants with limited resources to serve full portions of the
> > blockchain rather than limited pieces of the entire blockchain.
> >
> >
> > On Thu, Apr 10, 2014 at 12:28 PM, Mike Hearn <mike@plan99.net> wrote:
> >>
> >> Suggestions always welcome!
> >>
> >> The main problem with this is that the block chain is mostly random
> bytes
> >> (hashes, keys) so it doesn't compress that well. It compresses a bit,
> but
> >> not enough to change the fundamental physics.
> >>
> >> However, that does not mean the entire chain has to be stored on
> expensive
> >> rotating platters. I've suggested that in some star trek future where
> the
> >> chain really is gigantic, it could be stored on tape and spooled off at
> high
> >> speed. Literally a direct DMA from tape drive to NIC. But we're not
> there
> >> yet :)
> >
> >
> >
> >
> ------------------------------------------------------------------------------
> > Put Bad Developers to Shame
> > Dominate Development with Jenkins Continuous Integration
> > Continuously Automate Build, Test & Deployment
> > Start a new project now. Try Jenkins in the cloud.
> > http://p.sf.net/sfu/13600_Cloudbees
> > _______________________________________________
> > Bitcoin-development mailing list
> > Bitcoin-development@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/bitcoin-development
> >
>

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<div dir=3D"ltr">Okay...will let myself out now ;P</div><div class=3D"gmail=
_extra"><br><br><div class=3D"gmail_quote">On Thu, Apr 10, 2014 at 12:54 PM=
, Ricardo Filipe <span dir=3D"ltr">&lt;<a href=3D"mailto:ricardojdfilipe@gm=
ail.com" target=3D"_blank">ricardojdfilipe@gmail.com</a>&gt;</span> wrote:<=
br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">that&#39;s what blockchain pruning is all ab=
out :)<br>
<br>
2014-04-10 17:47 GMT+01:00 Brian Hoffman &lt;<a href=3D"mailto:brianchoffma=
n@gmail.com">brianchoffman@gmail.com</a>&gt;:<br>
&gt; Looks like only about ~30% disk space savings so I see your point. Is =
there<br>
&gt; a critical reason why blocks couldn&#39;t be formed into &quot;superbl=
ocks&quot; that are<br>
&gt; chained together and nodes could serve a specific superblock, which co=
uld be<br>
&gt; pieced together from different nodes to get the full blockchain? This =
would<br>
&gt; allow participants with limited resources to serve full portions of th=
e<br>
&gt; blockchain rather than limited pieces of the entire blockchain.<br>
&gt;<br>
&gt;<br>
&gt; On Thu, Apr 10, 2014 at 12:28 PM, Mike Hearn &lt;<a href=3D"mailto:mik=
e@plan99.net">mike@plan99.net</a>&gt; wrote:<br>
&gt;&gt;<br>
&gt;&gt; Suggestions always welcome!<br>
&gt;&gt;<br>
&gt;&gt; The main problem with this is that the block chain is mostly rando=
m bytes<br>
&gt;&gt; (hashes, keys) so it doesn&#39;t compress that well. It compresses=
 a bit, but<br>
&gt;&gt; not enough to change the fundamental physics.<br>
&gt;&gt;<br>
&gt;&gt; However, that does not mean the entire chain has to be stored on e=
xpensive<br>
&gt;&gt; rotating platters. I&#39;ve suggested that in some star trek futur=
e where the<br>
&gt;&gt; chain really is gigantic, it could be stored on tape and spooled o=
ff at high<br>
&gt;&gt; speed. Literally a direct DMA from tape drive to NIC. But we&#39;r=
e not there<br>
&gt;&gt; yet :)<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; ----------------------------------------------------------------------=
--------<br>
&gt; Put Bad Developers to Shame<br>
&gt; Dominate Development with Jenkins Continuous Integration<br>
&gt; Continuously Automate Build, Test &amp; Deployment<br>
&gt; Start a new project now. Try Jenkins in the cloud.<br>
&gt; <a href=3D"http://p.sf.net/sfu/13600_Cloudbees" target=3D"_blank">http=
://p.sf.net/sfu/13600_Cloudbees</a><br>
&gt; _______________________________________________<br>
&gt; Bitcoin-development mailing list<br>
&gt; <a href=3D"mailto:Bitcoin-development@lists.sourceforge.net">Bitcoin-d=
evelopment@lists.sourceforge.net</a><br>
&gt; <a href=3D"https://lists.sourceforge.net/lists/listinfo/bitcoin-develo=
pment" target=3D"_blank">https://lists.sourceforge.net/lists/listinfo/bitco=
in-development</a><br>
&gt;<br>
</blockquote></div><br></div>

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