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		<title>Blockchain Exceptions and Changes - Revision history</title>
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		<updated>2026-05-02T12:56:06Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.terracoin.io/index.php?title=Blockchain_Exceptions_and_Changes&amp;diff=450&amp;oldid=prev</id>
		<title>Clockuniverse: Created page with &quot;For developers creating apps and websites here is a list of Blockchain Exceptions and changes which will make the process much less painful.  ==Blockchain Exceptions and Chang...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.terracoin.io/index.php?title=Blockchain_Exceptions_and_Changes&amp;diff=450&amp;oldid=prev"/>
				<updated>2019-07-25T01:22:51Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;For developers creating apps and websites here is a list of Blockchain Exceptions and changes which will make the process much less painful.  ==Blockchain Exceptions and Chang...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;For developers creating apps and websites here is a list of Blockchain Exceptions and changes which will make the process much less painful.&lt;br /&gt;
&lt;br /&gt;
==Blockchain Exceptions and Changes==&lt;br /&gt;
&lt;br /&gt;
All heights but 0 is last height&lt;br /&gt;
&lt;br /&gt;
0&lt;br /&gt;
&lt;br /&gt;
BTC PoW V1&lt;br /&gt;
nPowTargetTimespan = 60  60&lt;br /&gt;
nPowTargetSpacing = 2  60&lt;br /&gt;
nMinerConfirmationWindow = 2016;&lt;br /&gt;
nActualTimespan = nPowTargetTimespan / nPowTargetSpacing&lt;br /&gt;
nActualTimespan = nActualTimespan - 1&lt;br /&gt;
retarget = 4&lt;br /&gt;
99990&lt;br /&gt;
&lt;br /&gt;
nActualTimespan = nActualTimespan * 24&lt;br /&gt;
101632&lt;br /&gt;
&lt;br /&gt;
Change to EMA PoW&lt;br /&gt;
alpha = 0.09&lt;br /&gt;
Last Diff  10&lt;br /&gt;
perBlockTargetTimespan  4&lt;br /&gt;
101910&lt;br /&gt;
&lt;br /&gt;
nActualTimespan = nActualTimespan / 3&lt;br /&gt;
103792&lt;br /&gt;
&lt;br /&gt;
Last Diff * 2&lt;br /&gt;
104291&lt;br /&gt;
&lt;br /&gt;
set difficulty to 0x1b0c7898 if it's higher only and over 0&lt;br /&gt;
110323&lt;br /&gt;
&lt;br /&gt;
alpha = 0.06&lt;br /&gt;
Calc uses  1.5 and / 2&lt;br /&gt;
perBlockTargetTimespan  2&lt;br /&gt;
137161&lt;br /&gt;
&lt;br /&gt;
Bad Block set difficulty to 0x1b034c51&lt;br /&gt;
181202&lt;br /&gt;
&lt;br /&gt;
Change to BTC PoW V2&lt;br /&gt;
retargetBlockCountInterval = 2160&lt;br /&gt;
set difficulty to 0x1b03bf8b if it's higher only&lt;br /&gt;
183001&lt;br /&gt;
&lt;br /&gt;
remove difficulty hardcode&lt;br /&gt;
192238&lt;br /&gt;
&lt;br /&gt;
retargetBlockCountInterval = 540&lt;br /&gt;
retarget = 1.25&lt;br /&gt;
220001&lt;br /&gt;
&lt;br /&gt;
set difficulty to 0x1b0c7898 if it's higher only&lt;br /&gt;
833000&lt;br /&gt;
&lt;br /&gt;
Change to Dark Gravity Wall PoW&lt;br /&gt;
nMinerConfirmationWindow = 30&lt;br /&gt;
retarget = 3&lt;/div&gt;</summary>
		<author><name>Clockuniverse</name></author>	</entry>

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