So like a dumbass I pointed my 400 Mhs scrypt miner (THAT I OWN) to GHASH.IO multipool. For 6 hrs I GOT NO bitcoins conversion. The pool was finding blocks left and right. Both nothing was being credited to my payout account. So I wrote support so they can fix the issue. They admitted that there were tech difficulties with the pool. But everything will be credited to my account in about 4-6 days. FINE! A week later I log into my account and this is what they credited after 6 dang hours of mining scrypt. 0.00008341 So I wrote them this "Where are the rest of my bitcoins from mining that wasn't credited to my account? I only been credited 0.00008341 bitcoins. I should have much more than this after 6 hrs of mining at 400 Mhs. Please check my records and credit my account accordingly..."
This is their reply:
We are happy to answer any queries directly, and we will do our best to explain our platform and any other questions.
We are experiencing a period of high fees for several reasons, these being: the recent downtime, low price of USD/BTC, the high difficulty climbs of late, and bad pool luck for the last 48 hour period. The rewards should improve in the next 48 - 72 hours time.
The recent dip in USD/BTC prices has been affecting all miners and has caused the relative costs of mining for all hardware to rise.
Below is the answer given as first response for Maintenance fee queries, and explains how the fee is applied, and why there is sometimes higher % of rewards as fees than at other times.
Fees are charged per share submitted for each hosted miner. New purchases of GHS will receive positive rewards after the first 1 - 3 blocks of maintenance charges as your worker catches up with the pools PPLNS system. This is because these blocks were discovered before your miner was assigned, and the pending reward payout triggered the maintenance charge for the active shares.
Each block's rewards are based on Scored ratings for 10 shifts in each round. Each round score is a sum of the score of the 10 shifts previous.
The fee is also summed, and the fee is deducted from your next reward.
The fee is not limited to 10 shifts, or 1 round, but to the block length.
As a result, the fees are cumulative for the rounds, and will mean that longer blocks have more fees, because they took more shares to discover.
Our system uses PPLNS to calculate the rewards, and fees for each worker. Each round is calculated for 7500000000 share value. The 10 shifts make a round, and rounds are used to score each worker using PPLNS and give rewards accordingly. You can read more about PPLNS. The last N shares per round are used to create the payouts.
https://bitcointalksearch.org/topic/pplns-39832 A typical score for 1 shift is x/7500000000
Your score for the block is: f(x)/75000000000
Hence your score for each block is based on a total number of shares submitted since the last block, less the fee for that period.
Here you can check current fee:
https://cex.io/maintenance We are always working to keep our services up to date, competitive, and reliable for all users. See our recent update for reduced maintenance charges for cloud miners.
https://support.cex.io/hc/en-us/articles/203493916 http://blog.cex.io/cex-io-lowers-maintenance-cost/ Let me know if you need more help with this explanation of our fee calculations.
Best Regards,
Leonard
CEX.IO Support
It was generating only negative revenues 3 months ago. Pure Bullshit on cloud mining.
