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	<title>Comments on: GUIDs: Not Necessarily Unique</title>
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	<link>http://facility9.com/2009/11/19/guids-not-necessarily-unique</link>
	<description>Jeremiah Peschka&#039;s ruminations on sql, ruby, c# and other things</description>
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		<title>By: Jeremiah Peschka</title>
		<link>http://facility9.com/2009/11/19/guids-not-necessarily-unique#comment-939</link>
		<dc:creator>Jeremiah Peschka</dc:creator>
		<pubDate>Sat, 21 Nov 2009 16:44:16 +0000</pubDate>
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		<description>&lt;a href=&quot;http://en.wikipedia.org/wiki/Universally_Unique_Identifier#Version_1_.28MAC_address.29&quot; rel=&quot;nofollow&quot;&gt;V1 GUIDs&lt;/a&gt; did this, but there was a big stink about it because you can trace data back to the original machine that generated the GUID. For windows computers, this was changed back with Windows 2000, I do believe.</description>
		<content:encoded><![CDATA[<p><a href="http://en.wikipedia.org/wiki/Universally_Unique_Identifier#Version_1_.28MAC_address.29" rel="nofollow">V1 GUIDs</a> did this, but there was a big stink about it because you can trace data back to the original machine that generated the GUID. For windows computers, this was changed back with Windows 2000, I do believe.</p>
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		<title>By: John</title>
		<link>http://facility9.com/2009/11/19/guids-not-necessarily-unique#comment-938</link>
		<dc:creator>John</dc:creator>
		<pubDate>Sat, 21 Nov 2009 02:43:47 +0000</pubDate>
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		<description>I thought the GUID generation algorithm used the MAC address and system time as part of the algorithm.  Sounds like a bug in the GUID generation code.</description>
		<content:encoded><![CDATA[<p>I thought the GUID generation algorithm used the MAC address and system time as part of the algorithm.  Sounds like a bug in the GUID generation code.</p>
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		<title>By: Jeremiah Peschka</title>
		<link>http://facility9.com/2009/11/19/guids-not-necessarily-unique#comment-934</link>
		<dc:creator>Jeremiah Peschka</dc:creator>
		<pubDate>Thu, 19 Nov 2009 21:47:37 +0000</pubDate>
		<guid isPermaLink="false">http://facility9.com/?p=1169#comment-934</guid>
		<description>In honor of the 10th anniversary of Fight Club, it will say &quot;You are doomed because you are not a unique and special snowflake.&quot;</description>
		<content:encoded><![CDATA[<p>In honor of the 10th anniversary of Fight Club, it will say &#8220;You are doomed because you are not a unique and special snowflake.&#8221;</p>
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		<title>By: Jon Crawford</title>
		<link>http://facility9.com/2009/11/19/guids-not-necessarily-unique#comment-933</link>
		<dc:creator>Jon Crawford</dc:creator>
		<pubDate>Thu, 19 Nov 2009 21:46:43 +0000</pubDate>
		<guid isPermaLink="false">http://facility9.com/?p=1169#comment-933</guid>
		<description>I can&#039;t help myself - if the 5th attempt fails, are you going to return an error that reads &quot;You are doomed, because you are not unique&quot;?</description>
		<content:encoded><![CDATA[<p>I can&#8217;t help myself &#8211; if the 5th attempt fails, are you going to return an error that reads &#8220;You are doomed, because you are not unique&#8221;?</p>
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		<title>By: Merrill Aldrich</title>
		<link>http://facility9.com/2009/11/19/guids-not-necessarily-unique#comment-932</link>
		<dc:creator>Merrill Aldrich</dc:creator>
		<pubDate>Thu, 19 Nov 2009 21:11:22 +0000</pubDate>
		<guid isPermaLink="false">http://facility9.com/?p=1169#comment-932</guid>
		<description>Yeah, when the name was invented they tried PUID (prol&#039;ly unique identifier) and NAUID (nearly always unique identifier) but they just never caught on...</description>
		<content:encoded><![CDATA[<p>Yeah, when the name was invented they tried PUID (prol&#8217;ly unique identifier) and NAUID (nearly always unique identifier) but they just never caught on&#8230;</p>
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