[ANN] NiceHash.com - sell & buy hash rate cloud mining service / multipool

[bigbitmine]

Maintenance?  This time of the day?

[nicehash]

Dear customers,

We are very pleased to inform you that NiceHash is upgrading to enterprise-level multi-signature wallets. For this purpose we have integrated BitGo's multi-sig technology. NiceHash is now joining leading services to incorporate the industry's best security practices available today.

Switching to a new platform requires changing deposit addresses. The switch will be done on February 25th at 15:00 UTC. Our web site will be put into maintenance mode on February 25th for approximate 1 hour during 15:00 UTC and 16:00 UTC. Stratum servers will be running unaffected, therefore your orders will also be running as usual and mining will be unaffected. Of course no coins or funds will be lost, just transferred to new deposit addresses. When you'll log-in after the maintenance you'll have to manually click "Generate Bitcoin deposit address" and your existing funds will be instantly credited to your new deposit address.

Please keep in mind that after February 25th at 15:00 UTC you should NOT deposit Bitcoins to your current deposit addresses, but instead use newly generated one (once it will be available after the switch).

We would like to thank you for using our service. We will continue to improve our service, make sure it's reliable and secure as well as introduce new features in the future upgrades.

--
Kind regards,
NiceHash.com

[girino]

Problem with submitted shares not matching what i paid for.

I verified the orders i submitted yesterday and today for the amount of shares actually submitted to the pool and they are at least 20% off. Which means i am paying 20% more for the hashrate i hired.

Has anyone else had similar problems?

Here follows my calculations:

Order	Price BTC/TH/Day	Total BTC	Unspent BTC	Limited TH/s	Expected Shares	Actual Shares (on pool)
Nicehash
#252158	0.0103	0.205702	0	100	401749338.9
#250693	0.0104	0.156702	0	250	303106382.5
Total nicehash					704855721.4	560946737
WestHash
#250694	0.0104	0.303702	0	250	587446328.5
#252159	0.0103	0.156702	0.05561814	100	197423330.5
Total Westhash					784869659	668995673

Has anyone any idea what happened? Can i get my missing shares refunded?
Thanks,
girino.

[nicehashdev]

Problem with submitted shares not matching what i paid for.

I verified the orders i submitted yesterday and today for the amount of shares actually submitted to the pool and they are at least 20% off. Which means i am paying 20% more for the hashrate i hired.

Has anyone else had similar problems?

Here follows my calculations:

Order	Price BTC/TH/Day	Total BTC	Unspent BTC	Limited TH/s	Expected Shares	Actual Shares (on pool)
Nicehash
#252158	0.0103	0.205702	0	100	401749338.9
#250693	0.0104	0.156702	0	250	303106382.5
Total nicehash					704855721.4	560946737
WestHash
#250694	0.0104	0.303702	0	250	587446328.5
#252159	0.0103	0.156702	0.05561814	100	197423330.5
Total Westhash					784869659	668995673

Has anyone any idea what happened? Can i get my missing shares refunded?
Thanks,
girino.

Let me know:
1. which coin you mined? was there a lot of job switching?
2. what diff did your pool set for NH and WH connections?

[girino]

Problem with submitted shares not matching what i paid for.

I verified the orders i submitted yesterday and today for the amount of shares actually submitted to the pool and they are at least 20% off. Which means i am paying 20% more for the hashrate i hired.

Has anyone else had similar problems?

Here follows my calculations:

Order	Price BTC/TH/Day	Total BTC	Unspent BTC	Limited TH/s	Expected Shares	Actual Shares (on pool)
Nicehash
#252158	0.0103	0.205702	0	100	401749338.9
#250693	0.0104	0.156702	0	250	303106382.5
Total nicehash					704855721.4	560946737
WestHash
#250694	0.0104	0.303702	0	250	587446328.5
#252159	0.0103	0.156702	0.05561814	100	197423330.5
Total Westhash					784869659	668995673

Has anyone any idea what happened? Can i get my missing shares refunded?
Thanks,
girino.

Let me know:
1. which coin you mined? was there a lot of job switching?
2. what diff did your pool set for NH and WH connections?

1- bitcoin. Job switching occurred on average every 5 to 10 minutes (which matches bitcoin block changes).
2- the diff started at 1024 and peaked at 12000. The full list of submited difficulties is bellow:

2.a Accepted shares

difficulty	|	count
1024.0	|	355
4096.0	|	905
1024.0	|	1082
4096.0	|	7128
1024.0	|	2393
12000.0	|	3308
1698.11320755	|	108
12000.0	|	11762
1024.0	|	569
12000.0	|	6490
1024.0	|	204
12000.0	|	13
4285.71428571	|	344
12000.0	|	21796

2.b Rejected shares

difficulty	|	count
4096.0	|	46
12000.0	|	88

If needed, full log can be provided.

[nicehashdev]

Ah yes, you would get exact amount of shares only if you used low diff shares. Check this thread (I don't know which page, was long time ago) - we already had debate about this.

Keep in mind that our pool on the miners side allows miners to have diffs lower than what pool provides - they get paid for these shares but are not submitted to pool if being under pool diff.

[girino]

Ah yes, you would get exact amount of shares only if you used low diff shares. Check this thread (I don't know which page, was long time ago) - we already had debate about this.

Keep in mind that our pool on the miners side allows miners to have diffs lower than what pool provides - they get paid for these shares but are not submitted to pool if being under pool diff.

Wait, you are saying that i'll get 20% less shares if i use a difficulty compatible with the mining speed? Thats simply unacceptable. And that is not the explanation since i use the same pool with the same setup since december and only yesterday this difference occured, so, thats not the explanation.

I m of course expecting small differences to occur, but 20% is unacceptable.

[nicehashdev]

It is called bad luck. Miners have to be "lucky" to find shares. And higher the diff, the more luck is needed. I think someone good with statistics can actually calculate you the odds to have 20% difference.

If you want to avoid this bad luck, and get exact expected shares - set diff to 128. That is the lowest miner diff we support for SHA256. But also keep in mind that this will NOT increase your chance to find bitcoin block.

[girino]

It is called bad luck. Miners have to be "lucky" to find shares. And higher the diff, the more luck is needed. I think someone good with statistics can actually calculate you the odds to have 20% difference.

If you want to avoid this bad luck, and get exact expected shares - set diff to 128. That is the lowest miner diff we support for SHA256. But also keep in mind that this will NOT increase your chance to find bitcoin block.

That is not bad luck, that a poorly designed system that rips off it customers. I paid for something and that was not delivered.

I'm sorry. I wont fall for the bad luck explanation, that's a systematic problem that occurred for the whole of two days, and that was successfully repeated in 4 different orders. I should remind you that extraordinary claims require extraordinary evidence. You should be checking your system, not blaming "luck", or the user for that. If after that you have enough evidence to blame luck, then blame it. For now you are simply avoiding the problem.

[e-sushi]

That is not bad luck … I paid for something and that was not delivered …

  I really don’t don’t want to step on anyone’s toes – but honestly, sometimes it’s just too funny to notice a “senior member” not grasping the most basic things.

[girino]

It is called bad luck. Miners have to be "lucky" to find shares. And higher the diff, the more luck is needed. I think someone good with statistics can actually calculate you the odds to have 20% difference.

For the probability of that ocurring, since you mentioned that, someone corrects me if i'm wrong, each share is independent and has an uniform probability of meeting the difficulty set, so we are talking about a binomial distribution with the following parameters:

N = number of produced shares
P = difficulty_of_shares/target_difficulty
K = number of accepted shares

Considering that you only pay for valid shares, and you say they are of difficulty 128, and that my target difficulty was 12000 most of the time, we have:

N = 784869659/128 (since you are paying for shares with difficulty 128)
P = 128/12000
K = 668995673/12000

This number is so small that it i have been unable to calculate it precisely. But i made a simulation with much smaller differences, ranging from 1% to 5% that you can see bellow.

%actual shares	N	K	Probability
99.00%	5226528	55192.13568	0.008762397104
98.00%	5226528	54634.63936	9.52E-07
97.00%	5226528	54077.14304	4.14E-13
96.00%	5226528	53519.64672	0.00E+00
95.00%	5226528	52962.1504	0.00E+00

As you can see, with a difference of only 3% the probability is already so small that you should already be suspicious if it occurred, with 4% it's already not representable by a double precision digit.

Now, we are talking of a 20% difference. Please, do not blame luck. Luck was not involved here!

[nicehash]

Migration to new multi-sig Bitcoin deposit addresses has been successfully completed. Just press "Generate Bitcoin deposit address" at your Account / Wallet and you'll get your new Bitcoin deposit address and fully functional multi-sig NiceHash Bitcoin deposit wallet with full previous history. And please remember - do NOT deposit to your old address (but in case you did it by mistake, further instructions to recover those Bitcoins was sent to your account's email address).

Thank you for using our service!

[bigbitmine]

That is not bad luck … I paid for something and that was not delivered …

  I really don’t don’t want to step on anyone’s toes – but honestly, sometimes it’s just too funny to notice a “senior member” not grasping the most basic things.

QFT.

A lot of us are complete idiots (Not me of course, I'm a genius which is why...)

I sent some BTC to my wallet just after the switch to MultiSig, please let me know if it'll be possible to retrieve these coins. I've PM'd the OP.

I'm glad you cocked it up.  I was about to send some btc over.  Now updated the address so I don't lose any.

[nicehashdev]

Nobody will loose any coins. We have mailed private keys of old deposit addresses. If you sent to old address, just use that private key to recover the coins. If you didn't get private key, contact our support and we will mail you the key again.

[ohmygod21]

My deposits are completely stuck since new wallet generation

pending ... 15 confirm


edit : its ok now

[bigbitmine]

I don't need to refill yet because the price is too high so my order isn't being mined right now.  For some reason Nicehash has always been pretty slow processing payments but they always get there in the end.  Usually I make sure I've got a surplus.

[evan79]

Anybody know the minimum payout done by nice/west-hash, i have showing 0.00328230 in "un-paid" btc since this morning and can see there has been payouts through the day already but my btc was not paid out to my btc address? Checked the FAQ but could not see anything on minimum payouts, thanks.

[nicehashdev]

Anybody know the minimum payout done by nice/west-hash, i have showing 0.00328230 in "un-paid" btc since this morning and can see there has been payouts through the day already but my btc was not paid out to my btc address? Checked the FAQ but could not see anything on minimum payouts, thanks.

https://www.nicehash.com/index.jsp?p=faq#faqs5

[evan79]

Anybody know the minimum payout done by nice/west-hash, i have showing 0.00328230 in "un-paid" btc since this morning and can see there has been payouts through the day already but my btc was not paid out to my btc address? Checked the FAQ but could not see anything on minimum payouts, thanks.

https://www.nicehash.com/index.jsp?p=faq#faqs5

Ok thanks, missed that :-)

[crk]

Anyone else is having connection issues? I have 3 SP20 that aren't working OK at westhash