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Author Topic: Does prob. of finding a solution for a block depend on its contents at all?  (Read 1111 times)
jwputrl
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October 18, 2014, 11:19:04 AM
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Am I right in thinking that a miner will have the same chance of finding a solution for a block, whatever transactions (or anything else) it contains?

I'm saying this as I assume it doesn't matter what the input into the hash is, the chances of getting a solution are the same, for a given difficulty level.

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October 18, 2014, 11:50:01 AM
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No one can know with absolute certainty, and it is possible there is a variation depending on the input, but so far the evidence has pointed to it making absolutely no difference what the input is as to the chance of finding a block.

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jwputrl
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October 18, 2014, 12:40:15 PM
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Thanks for reply ckolivas.  Is this uncertainty you refer to because nobody knows for sure how sha256 actually behaves?  So if a miner were to work that out it is possible they could select contents to increase chance of finding a solution, but if they don't they can't?  Pls feel free to point me somewhere else so i can educate myself.
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October 19, 2014, 09:39:37 AM
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I noticed that when that BearWhale did that massive sell-off, duration times went up in a big way.  Was there a relation, or simply a coincidence? (I don't believe in coincidences)

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October 24, 2014, 11:43:23 PM
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Thanks for reply ckolivas.  Is this uncertainty you refer to because nobody knows for sure how sha256 actually behaves?  So if a miner were to work that out it is possible they could select contents to increase chance of finding a solution, but if they don't they can't?  Pls feel free to point me somewhere else so i can educate myself.

People do know how SHA256 behaves.  What we don't know is if someone out there has discovered a way to shortcut/cheat the SHA256 process without the rest of the world finding out.

RIP BTC Guild, April 2011 - June 2015
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