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From: Peter Vessenes <peter@coinlab.com>
Date: Tue, 29 May 2012 11:36:34 -0400
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Subject: Re: [Bitcoin-development] Punishing empty blocks?
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--e89a8fb20784abad6704c12e9a56
Content-Type: text/plain; charset=ISO-8859-1

I suppose I mean that I don't understand how to reverse that into a URL
when one is presented only with a block, or perhaps a coinbase in a
transaction.

Best,

Peter

On Tue, May 29, 2012 at 11:34 AM, Luke-Jr <luke@dashjr.org> wrote:

> On Tuesday, May 29, 2012 3:28:56 PM Peter Vessenes wrote:
> > I don't understand what the 20 byte keyhash is. Can you elucidate?
>
> 20 byte keyhashes are a fundamental building block of the Bitcoin protocol.
>
> ripemd160(sha256(ecdsaPubKey))
>



-- 
Peter J. Vessenes
CEO, CoinLab
M: 206.595.9839
Skype: vessenes
Google+ <https://plus.google.com/112885659993091300749>

--e89a8fb20784abad6704c12e9a56
Content-Type: text/html; charset=ISO-8859-1
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I suppose I mean that I don&#39;t understand how to reverse that into a URL=
 when one is presented only with a block, or perhaps a coinbase in a transa=
ction.<div><br></div><div>Best,</div><div><br></div><div>Peter<br><br><div =
class=3D"gmail_quote">

On Tue, May 29, 2012 at 11:34 AM, Luke-Jr <span dir=3D"ltr">&lt;<a href=3D"=
mailto:luke@dashjr.org" target=3D"_blank">luke@dashjr.org</a>&gt;</span> wr=
ote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border=
-left:1px #ccc solid;padding-left:1ex">

<div class=3D"im">On Tuesday, May 29, 2012 3:28:56 PM Peter Vessenes wrote:=
<br>
&gt; I don&#39;t understand what the 20 byte keyhash is. Can you elucidate?=
<br>
<br>
</div>20 byte keyhashes are a fundamental building block of the Bitcoin pro=
tocol.<br>
<br>
ripemd160(sha256(ecdsaPubKey))<br>
</blockquote></div><br><br clear=3D"all"><div><br></div>-- <br><table style=
=3D"font-family:Times"><tbody><tr><td><img src=3D"http://coinlab.com/images=
/coinlab-logo.png"></td><td valign=3D"bottom"><div style=3D"font-family:Rob=
otoLight,&#39;Lucida Grande&#39;,Helmet,Freesans,sans-serif;font-size:16px;=
line-height:20px">

Peter J. Vessenes<br>CEO, CoinLab<br>M: 206.595.9839<br>Skype: vessenes<br>=
<a href=3D"https://plus.google.com/112885659993091300749" target=3D"_blank"=
>Google+</a></div></td></tr></tbody></table><br>
</div>

--e89a8fb20784abad6704c12e9a56--