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Author Topic: How can i know, when difficulty gonna change??  (Read 2578 times)
kosovito
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June 02, 2011, 02:45:46 PM
 #1

Hi.

Where or How can I know, when difficulty gonna change (up or down) BEFORE it happens??

Thanks

Please sir, give me any coin Smiley  135T7F27z7Mtvwffz359BE1zSfYgT1oJ8S
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BombaUcigasa
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June 02, 2011, 04:41:05 PM
 #2

You can get lots of cool information from here: http://blockexplorer.com/q

Next target will have this difficulty.
kosovito
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June 02, 2011, 05:00:43 PM
 #3

ty so much

Please sir, give me any coin Smiley  135T7F27z7Mtvwffz359BE1zSfYgT1oJ8S
kjj
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June 02, 2011, 11:37:06 PM
 #4

Divide the current block number by 2016.  Subtract the remainder from 2016.  Your answer is the number of blocks between now and the next retarget.

p2pcoin: a USB/CD/PXE p2pool miner - 1N8ZXx2cuMzqBYSK72X4DAy1UdDbZQNPLf - todo
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BombaUcigasa
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June 03, 2011, 12:27:09 AM
 #5

Divide the current block number by 2016.  Subtract the remainder from 2016.  Your answer is the number of blocks between now and the next retarget.
Actually to be more precise (a tool could be created but it's not really a precise moment in time to be predicted), you can do the following on http://blockexplorer.com/q
- Get the current block number: http://blockexplorer.com/q/getblockcount
- Get the next retarget block number: http://blockexplorer.com/q/nextretarget
- Get the current average interval: http://blockexplorer.com/q/interval

For example now, it's block 128249, difficulty change in (129023 - 128249) = 774 blocks that take on average 504 seconds => 108.4 hours => 4.515 days.

According to Wolfram Alpha, the exact difficulty change will be on 3:47:18 pm EEST  |  Tuesday, June 7, 2011.
kjj
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June 03, 2011, 04:17:35 AM
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Divide the current block number by 2016.  Subtract the remainder from 2016.  Your answer is the number of blocks between now and the next retarget.
Actually to be more precise (a tool could be created but it's not really a precise moment in time to be predicted), you can do the following on http://blockexplorer.com/q
- Get the current block number: http://blockexplorer.com/q/getblockcount
- Get the next retarget block number: http://blockexplorer.com/q/nextretarget
- Get the current average interval: http://blockexplorer.com/q/interval

For example now, it's block 128249, difficulty change in (129023 - 128249) = 774 blocks that take on average 504 seconds => 108.4 hours => 4.515 days.

According to Wolfram Alpha, the exact difficulty change will be on 3:47:18 pm EEST  |  Tuesday, June 7, 2011.

I'll bet you 1 BTC that the change does not happen during that second.    Smiley

p2pcoin: a USB/CD/PXE p2pool miner - 1N8ZXx2cuMzqBYSK72X4DAy1UdDbZQNPLf - todo
I routinely ignore posters with paid advertising in their sigs.  You should too.
interfect
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June 03, 2011, 07:40:04 AM
 #7

So how much money is there to be made by predicting the direction and time of the next difficulty change, assuming it has a straightforward effect on price, and buying/selling loads of coins?
kjj
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June 03, 2011, 07:43:33 AM
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So how much money is there to be made by predicting the direction and time of the next difficulty change, assuming it has a straightforward effect on price, and buying/selling loads of coins?

Not straightforward at all.  The USD to BTC ratio and the difficulty most likely form a complex system.

p2pcoin: a USB/CD/PXE p2pool miner - 1N8ZXx2cuMzqBYSK72X4DAy1UdDbZQNPLf - todo
I routinely ignore posters with paid advertising in their sigs.  You should too.
BombaUcigasa
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June 03, 2011, 11:06:03 AM
 #9

Divide the current block number by 2016.  Subtract the remainder from 2016.  Your answer is the number of blocks between now and the next retarget.
Actually to be more precise (a tool could be created but it's not really a precise moment in time to be predicted), you can do the following on http://blockexplorer.com/q
- Get the current block number: http://blockexplorer.com/q/getblockcount
- Get the next retarget block number: http://blockexplorer.com/q/nextretarget
- Get the current average interval: http://blockexplorer.com/q/interval

For example now, it's block 128249, difficulty change in (129023 - 128249) = 774 blocks that take on average 504 seconds => 108.4 hours => 4.515 days.

According to Wolfram Alpha, the exact difficulty change will be on 3:47:18 pm EEST  |  Tuesday, June 7, 2011.

I'll bet you 1 BTC that the change does not happen during that second.    Smiley
Well, of course it won't happen on that second, I wouldn't counter-bet, the chances are worse than me finding a whole block with my CPU today. New estimate: 2:53:48 am EEST  |  Tuesday, June 7, 2011

Notice it has decreased by 12 hours over a period of a day. This is due to increased mining activity and/or localized luck ratio in finding blocks. It might not even happen on the June 7th.

Could anyone build a better BitcoinX profit tool that takes into account difficulty changes during the given period?
ene
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June 03, 2011, 12:47:21 PM
 #10

So how much money is there to be made by predicting the direction and time of the next difficulty change, assuming it has a straightforward effect on price, and buying/selling loads of coins?

According to the weak efficient market hypothesis, none. Everybody is able to take the next difficulty change into account when pricing, so they already set their prices appropriate to it.

https://secure.wikimedia.org/wikipedia/en/wiki/Efficient_market_hypothesis
nazgulnarsil
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June 04, 2011, 11:00:16 AM
 #11

Quote
Could anyone build a better BitcoinX profit tool that takes into account difficulty changes during the given period?

of course but I won't share for free.   Wink

all it really takes is a field for guessing price and difficulty changes as percentages with the default being the historical rates.
saqwe
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June 11, 2011, 09:24:54 PM
 #12

Divide the current block number by 2016.  Subtract the remainder from 2016.  Your answer is the number of blocks between now and the next retarget.

thanks for the info

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