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I noticed recently the top miners on a couple of my SHA256 pools had very large hashrates but were not finding any blocks.
After looking further into the situation I am fairly confident they were cheating the pool. Somehow they are submitting lots of low difficulty shares. I have banned them and earnings are back to estimates. Today one of the cheats created another account which I also just banned.
Using Crypto-Expert's latest version of stratum-mining. Scrypt seems to be unaffected.
Just thought I would put it out there so other pool owners who use this version of stratum-mining are aware there is an issue.
I assume it has something to do with the diff1 setting. If anyone has any ideas what this could be changed to to stop this problems I would be most appreciative!
Have tried both:
diff1 = 0x00000000ffff0000000000000000000000000000000000000000000000000000
and
diff1 = 0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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Difficulty has dropped to 28.15
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And how long would it take for someone like me who has no knowledge of PHP to gain the necessary skills to pursue this plan?
Years... |
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Today we propose Investor Public Mining to the community.IPM defines a fair way of balancing the interests of miners, investors, developers, and users. If you are an investor, miner or otherwise interested in crypto currency and Bitmark, please take the time to read the document. Subject to the communities approval we will implement the IPM pool over the following days. Feedback and discussion is encouraged, please ask any questions you may have so that we can clarify the document. Question...who controls the IPM and the Bitmark Foundation? I like the idea of guaranteed hash power on the network, but ultimately its still centrally controlled, presumably by you. Not to say that you will be a bad actor because Bitmark stands to gain a lot more if you are good, but who is to say somebody else in the future does not gain access to the IPM? As the community grows so should the IPM and the Bitmark foundation. Eventually I would expect control of them to expand as well to include more than just you. Especially considering 5% of funds from the IPM go to the foundation, there is constant monetary support for the foundation to grow. I think the structure of how the foundation and IPM operates, as well as who controls it should be very transparent. Follow up question. If it were not to be coinsolidation to control / have access to foundation coins then who? Someone or some group needs to be trusted in order to have a Bitmark foundation at all and unless a better suggestion is put forward I vote for the someone to be Coinsolidation. But generally I agree, transparency is the key. |
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There seems to be a pump, or subtle rumour that the Dev and Fatman are up to something big.
But here's the facts ... Mega has generated less than 1 page of comments in 2 weeks. & their website is MIA.
That is about as dead as it gets in cryptoland.
caveat emptor
Keep telling yourself that...  How many comments has the Litecoin or Feathercoin thread on this forum generated in the last 2 weeks? Website will be back shortly. In the meantime the forum can be found at: https://forum.megacoin.co.nzAnd yes, there will be some interesting news coming soon. |
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Hi ethought. Is your luck statistic broken? It just seems to throw up random numbers. 2 blocks can be solved with roughly the same amount of shares at the same diff and one will say 45% and the other 200% ??
Yes, its broken. Its on the list.. |
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Also please note: Total Earnings (Last 24H) Is not showing the correct value at the moment. The correct value for earnings in last 24 hours (as pool is less than 24 hours old) can be found on the Dashboard under Total Credits + Pending. This is because I made one mistake in the fix and entered credits ( https://www.miningpool.co/account/payment/history/53/1) without a time.. Total Earnings (Last 24H) will show correct value 24 hours from now. God work. I have a question. Where is the option for manual payouts? There is no manual payout option as a security measure. Auto payouts occur every 5 minutes usually so you just need to enter your threshold and address. |
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Also please note: Total Earnings (Last 24H) Is not showing the correct value at the moment. The correct value for earnings in last 24 hours (as pool is less than 24 hours old) can be found on the Dashboard under Total Credits + Pending. This is because I made one mistake in the fix and entered credits ( https://www.miningpool.co/account/payment/history/53/1) without a time.. Total Earnings (Last 24H) will show correct value 24 hours from now. |
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Figured out what the problem was.
Basically every time the main system queried the stratum client wallets it would look through the last 400 transactions and update the confirmations.
Because up to now no coins on the pool had had greater confirmations required than 120, the last 400 transactions would always catch the needed blocks and update the confirmations.
Because bitmark requires 740 confirmations to mature a block the pool began to miss updating confirmations which then meant blocks were not getting paid out.
The problem was compounded by the fact that because there are two stratum servers the one with less hash on it was updating confirmations correctly as it was not finding nearly as many blocks as the other. The system would then only look back as far as the last solved and confirmed block paid out to process and pay new blocks.
Luckily all shares are recorded and logged on the system so all I had to do was write a quick script that replayed through the unconfirmed / unpaid blocks.
I have also updated the transaction query from the main system to look at the last 4000 transactions instead of the last 400, so this should never happen again.
Apologies for any inconvenience / stress etc caused by this.
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I am looking into the issues now.
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I think I speak for everyone here, when I say that MintPal should release a statement as to how exactly the attack took place.
I agree. If for nothing else, to possibly help another exchange or service not fall for the same vulnerability. Plus if the issue / vulnerability is now fixed what have they got to lose? |
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Okay... The pool is now finding blocks.. We have found 9 so far. Come join us at: https://www.miningpool.co2 Different Stratum servers available. Those of you that have used the pool before you will need to enable Bitmark on your dashboard from the settings page. Happy mining!  |
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The Bitmark stratum server will be running on an Amazon instance so should have no network issues.
So when will the pool be up? on launch? If all goes according to plan the pool should be up a few minutes after launch.. |
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Rather concerned that miningpool.co seems to be down
One of my favourite pools - hope all is well...
Yes, the front end was down for around 5 hours which has not happened for a long time.  When the front end goes down the stratum servers are usually unaffected (unless it is a network issue with my service providers). Meaning mining continues on as usual and when the front end comes back up all shares and payments are processed as would normally occur. The Bitmark stratum server will be running on an Amazon instance so should have no network issues. |
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I'm very sorry for this, but if you do have transactions being stuck / unconfirmed: Backup your current freshcoin wallet.dat file. Open the debug window -> console For every address you want the private key from, dump it: dumpprivkey <freshcoinaddress> save all the dumprivkey addresses in notepad. remove (or rename) the complete appdata freshcoin directory restart the wallet and let it sync Open the debug window -> console importprivkey <dumpedprivkey> for all the generated private keys exit the wallet remove everything except the wallet.dat start the wallet, let it sync and all should be fine again. I wrote two tiny scripts recently to recover transactions from wallets after forked block chains - same process. https://github.com/ethought/PrivateKeyMover |
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Thanks for fixing Edric, pools running sweet once again. Btw, anyone know whats going on with http://carbon.basshash.com  Payouts been disabled for a week now... Hope I am not speaking out of turn but I am pretty sure AxisMundi is taking over the basshash Carboncoin pool and moving it to a new server at the moment. |
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Just in case there were not enough pools already Unattainium has been added to: https://www.miningpool.co/For those of you who have used the pool before you can enable Unattainium on your dashboard through your account settings page. Happy mining! BONUS OFFER: The first 2 unique block finders will receive a bonus of 1 x LTC each! |
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Request
If anybody plans to have a bitmark node running on a server, and knows the fixed ip in advance, can you let me know so I can add it to the seed list before release.
172.31.31.10 |
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hey coinsolidation,
i'm really amazed by your hard work and perseverance
i'd really love to contribute in this project, but i believe the scrypt algorithm in not appropriate enough for it
it would be great if you could use another strong algorithm for this project
but as i understand, you already done most of it under the scrypt
anyway, wish you success
Scrypt is alive and well! The large driver for non-scrypt algorithms (x11, x13, x15, x[n]) is to try and combat ASICs since these hit the market just a few months ago. We can use block-by-block retargeting and can be merge-mined the proliferation of Scrypt ASICs are a good thing . This means that Scrypt mining is here to stay and the network will be healthy for a very long time. I agree! |
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