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wakgill
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28 lines
1.2 KiB
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layout: forum
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title: 'Re: Major Meltdown'
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grand_parent: Forum Posts
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parent: Bitcoin Forum
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nav_order: 156
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date: 2010-06-27 19:06:09 UTC
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original: https://bitcointalk.org/index.php?topic=202.msg1838#msg1838
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# Re: Major Meltdown
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight">
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<code>Re: Major Meltdown
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June 27, 2010, 07:06:09 PM
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Here's an answer to a similar question about how to recover from a major meltdown.
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https://www.bitcoin.org/smf/index.php?topic=191.msg1585#msg1585
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<a href="https://bitcointalk.org/index.php?topic=191.msg1585#msg1585">Quote from: satoshi on June 14, 2010, 08:39:50 PM</a>
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-------------
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If SHA-256 became completely broken, I think we could come to some agreement about what the honest block chain was before the trouble started, lock that in and continue from there with a new hash function.
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If the hash breakdown came gradually, we could transition to a new hash in an orderly way. The software would be programmed to start using a new hash after a certain block number. Everyone would have to upgrade by that time. The software could save the new hash of all the old blocks to make sure a different block with the same old hash can't be used.
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-------------</code></pre></div></div>
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