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Author Topic: [40+ PH] SlushPool (slushpool.com); World's First Mining Pool  (Read 3929686 times)
dmwardjr
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October 20, 2014, 08:30:33 PM
 #19441


Bitcoin Difficulty:   35,002,482,026
Estimated Next Difficulty:   35,462,875,526 (+1.32%)
Adjust time:   After 383 Blocks, About 2.6 days
Hashrate(?):   255,019,524 GH/s
Block Generation Time(?):   
1 block: 9.9 minutes
3 blocks: 29.7 minutes
6 blocks: 59.4 minutes
Updated:   15:35 (1.2 minutes ago)

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
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Billbags
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October 20, 2014, 08:54:57 PM
 #19442

^ since you been on the forum I don't have to do the math anymore!!! I do appreciate the info. I forgot I said I was going to start calling you numb3rs.....

This is the block chain's control theory feedback loop:

60minhr∗24hrday∗7dayweek 10minblock=2016 in 2weeks

Tcurrent=Tprior∗tprior/2weeks

D=work/2(32)=2(256)/(Tcurrent+1)∗2(32)

hashes/second≈D∗2(32)/600


The current target for the block chain is determined by a calculation, so any two clients looking at the block chain will calculate the same target. This calculation aims to adjust the target such that one block will be mined every 10 minutes, no matter how much total computing power is devoted to mining. The target changes every 2016 blocks based on the timestamps within those blocks. Why 2016? Because Satoshi decided two weeks was a good interval, and at 10 minutes per block, 2016 blocks will be mined every two weeks.

When 2016 blocks take more than two weeks to mine, the target goes up to make mining easier; when they take less than two weeks, the target goes down to make mining harder. In symbols, if Tprior is the previous target and tprior is the time it took to mine 2016 blocks using that target, then the updated target Tcurrent is just.

The target is typically a huge number well in excess of 2(200). Also it goes down as the total hashing power of the miners goes up. Consequently, interested people usually think in terms of the difficulty instead. Definition: The Bitcoin difficulty is the average number of nonces you have to try to find a valid block — aka. the work — divided by 2(32)(roughly 4 billion).

Note that D is just a number for human consumption. It scales in direct proportion to the computational effort required for mining, so twice the difficulty means twice the effort.

If we know the current difficulty D, we can estimate how fast all miners are hashing in aggregate. On average, it takes D∗2(32) hashes to find a nonce that works, and the target is selected to make that take 10 minutes.

Listen: meat beat manifesto ~ Edge of no control (pt.1)
Read:"He who controls the past controls the future. He who controls the present controls the past." ~ George Orwell
Think: http://unenumerated.blogspot.com/2014/12/the-dawn-of-trustworthy-computing.html
dmwardjr
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October 20, 2014, 09:01:09 PM
 #19443

Thanks for the descriptive explanation.

I've been going to the following link for updates on difficulty:

https://bitcoinwisdom.com/bitcoin/difficulty

Then, I would post them here just to give members the heads up.

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
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October 20, 2014, 09:02:54 PM
 #19444

^ it's definitely appreciated Grin

Note: please check this out, it's probably the best explanation of Bitcoin I've ever seen. The link goes to page 10 but use the links in the top left to go back through the other 9 pages.

https://self-evident.org/?p=999

Listen: meat beat manifesto ~ Edge of no control (pt.1)
Read:"He who controls the past controls the future. He who controls the present controls the past." ~ George Orwell
Think: http://unenumerated.blogspot.com/2014/12/the-dawn-of-trustworthy-computing.html
dmwardjr
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October 20, 2014, 09:04:12 PM
 #19445

^ it's definitely appreciated Grin

You're all very welcome.

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
dmwardjr
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October 20, 2014, 09:14:39 PM
 #19446

It will be a nice surprise if we find our next one within 15 hours.

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
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October 21, 2014, 01:55:32 AM
 #19447

Damn, just noticed 2nd block I (32955)  have found at slush since 02/14. Both ones have been found by my S2's who would have thunk? Only need 32 more to make the list. Smiley

BTC ADDRESS: 12Qwd8VKLQ4xF44ytHXBpCAKuF9VknG4X2
dmwardjr
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October 21, 2014, 02:22:52 AM
 #19448

Damn, just noticed 2nd block I (32955)  have found at slush since 02/14. Both ones have been found by my S2's who would have thunk? Only need 32 more to make the list. Smiley

sweeeeeeeeet

thumbs up!

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
dmwardjr
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October 21, 2014, 04:16:02 AM
 #19449

Bitcoin Difficulty:   35,002,482,026
Estimated Next Difficulty:   35,298,274,848 (+0.85%)
Adjust time:   After 342 Blocks, About 2.4 days
Hashrate(?):   251,876,881 GH/s
Block Generation Time(?):   
1 block: 9.9 minutes
3 blocks: 29.9 minutes
6 blocks: 59.7 minutes
Updated:   23:12 (4.7 minutes ago)

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
wasikidding
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October 21, 2014, 04:43:36 AM
 #19450

well 2 close to flat diff jumps looks fantastic adds another two weeks to the life of some miners Grin

BTC ADDY just in case you are my rich uncle lol 1GmrgmiAWKA4yXuo4JECxyvzzjnBEtGwwL
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October 21, 2014, 04:46:31 AM
 #19451

well 2 close to flat diff jumps looks fantastic adds another two weeks to the life of some miners Grin

Certainly does.  I think many miners are still safe at for a little while.  For some reason the hash rate gets high over the weekend then gets back lower after the weekend.  I don't know why?  If I had miners, I would keep them on 24/7 as long as I could.

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
wasikidding
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October 21, 2014, 05:14:47 AM
 #19452

well 2 close to flat diff jumps looks fantastic adds another two weeks to the life of some miners Grin

Certainly does.  I think many miners are still safe at for a little while.  For some reason the hash rate gets high over the weekend then gets back lower after the weekend.  I don't know why?  If I had miners, I would keep them on 24/7 as long as I could.
well some companies hash on equipment they are supposed to ship you know well we cant ship sat or sun so lets point em at our pool etc

BTC ADDY just in case you are my rich uncle lol 1GmrgmiAWKA4yXuo4JECxyvzzjnBEtGwwL
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October 21, 2014, 05:21:14 AM
 #19453

Here's what pisses me off:

Bitmain says the following regarding their S4, "Power line not included. You may look for one line with no less than 16A in your local market."

Well, I've searched the WORLD WIDE WEB for a C14 Power cord and cannot find one rated higher than 15 amps.

WTF?


Pretty sure they made a typo and meant 16Awg. If you're running on 240v you need an 18AWG cord, ND if you're running 120v use a 14AWG cord.
dmwardjr
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October 21, 2014, 05:22:18 AM
 #19454

well 2 close to flat diff jumps looks fantastic adds another two weeks to the life of some miners Grin

Certainly does.  I think many miners are still safe at for a little while.  For some reason the hash rate gets high over the weekend then gets back lower after the weekend.  I don't know why?  If I had miners, I would keep them on 24/7 as long as I could.
well some companies hash on equipment they are supposed to ship you know well we cant ship sat or sun so lets point em at our pool etc

Interesting theory.

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
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October 21, 2014, 06:16:03 AM
 #19455

Here's what pisses me off:

Bitmain says the following regarding their S4, "Power line not included. You may look for one line with no less than 16A in your local market."

Well, I've searched the WORLD WIDE WEB for a C14 Power cord and cannot find one rated higher than 15 amps.

WTF?


Pretty sure they made a typo and meant 16Awg. If you're running on 240v you need an 18AWG cord, ND if you're running 120v use a 14AWG cord.
240V/16A plugs are common in other countries. The cable that shipped with my S2 was a 16A 240V 50Hz.

Your S2 will be fine with a 15A cable.
dmwardjr
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October 21, 2014, 06:18:40 AM
 #19456

Here's what pisses me off:

Bitmain says the following regarding their S4, "Power line not included. You may look for one line with no less than 16A in your local market."

Well, I've searched the WORLD WIDE WEB for a C14 Power cord and cannot find one rated higher than 15 amps.

WTF?


Pretty sure they made a typo and meant 16Awg. If you're running on 240v you need an 18AWG cord, ND if you're running 120v use a 14AWG cord.
240V/16A plugs are common in other countries. The cable that shipped with my S2 was a 16A 240V 50Hz.

Your S2 will be fine with a 15A cable.

The more I thought about it, 1400 watts [S4 built in PSU] amounts to no more than 11.6666667 AMPS.  So, a 15 AMP should be fine.  I'm still getting a 14 AWG rather than 16 or 18 AWG.

BTC ADDRESS: 1HBSBwbFDg2XQii8cNJGAhLyd2mFS4jbG9
icex2014
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October 21, 2014, 01:54:59 PM
 #19457

These block times are ridiculous. 15 hour and going..
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October 21, 2014, 01:59:50 PM
 #19458

Here's what pisses me off:

Bitmain says the following regarding their S4, "Power line not included. You may look for one line with no less than 16A in your local market."

Well, I've searched the WORLD WIDE WEB for a C14 Power cord and cannot find one rated higher than 15 amps.

WTF?


Pretty sure they made a typo and meant 16Awg. If you're running on 240v you need an 18AWG cord, ND if you're running 120v use a 14AWG cord.

I bought this one:

  Amazon.com: Tripp Lite Heavy Duty Power Cord, 16A,14AWG (NEMA 5-15P to IEC-320-C15) 8-ft.(P019-008): Electronics
  http://www.amazon.com/gp/product/B0091F8GP6/#

It's a replacement for a heavy duty server room style UPS.  When i got it, the packing slip said 16A but the packaging the cord was in said 15A.  Anyway until I received that my S4 ran fine for 2 days with a standard el-cheap-o 10A PC power cord that I had laying around in a box in my closet, so I wouldn't stress about it.

The 15A is nice, though!  So stiff you can hardly bend the thing :-) the A/C cord that came with this PSU is really beefy too:

  Amazon.com: EVGA SuperNOVA 1300G2 ATX12V/EPS12V 1300W 80Plus Gold Power Supply 120-G2-1300-XR
  http://www.amazon.com/gp/product/B00COIZTZM

I bought that to power my S3's -- It is awesome in every detail!  Hands down the best power supply I have ever owned :-)

thanks,

-dave

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October 21, 2014, 02:06:35 PM
 #19459

These block times are ridiculous. 15 hour and going..
The average over the last 10 blocks (including this one) is 4:40, which is well below the expected time at present.
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October 21, 2014, 02:31:06 PM
 #19460

These block times are ridiculous. 15 hour and going..
The average over the last 10 blocks (including this one) is 4:40, which is well below the expected time at present.

Good times the last couple days for sure.  This long block may be my fault i upgraded a couple of my S1's and as soon as i plugged them in we hit this 15 hour block.  Tongue

JT
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