Frequently Asked Questions
Q: What fees does this site charge?
A: This site charges a 1.5% fee on all mining proceeds (with the exception of Bitcoin Classic, which is currently 0%), and transaction fees on some withdrawals (see below).
Q: When will I get charged a transaction fee on a withdrawal?
A: Users will always pay a transaction fee (see below) for PPC, NVC, CGB, and CAP withdrawals. In addition, the user will pay a transaction fee for on-demand withdrawals that are below the auto-pay threshold. For the remaining coins, here is no fee for any withdrawal that is greater than the auto-pay threshold There is no fee for auto payouts or daily payouts.
Currency Auto Pay Threshold Daily Pay Threshold On-Demand TX Fee Confirmations Required Reward System
ANC 0.2 0.1 0.001 120 Proportional
AUR 0.2 0.01 0.001 20 Proportional
BTC 0.01 0.001 0.001 110 Exponential
BXT 0.01 0.001 0.01 110 PPLNS
CANN 1 1 0.01 120 Proportional
DGB 1 1 0.01 15 Proportional
DGC 1 1 0.1 20 Proportional
DOGE 500 10 1 50 Proportional
DRK 1 0.1 0.01 40 Proportional
FRC 1 1 0.1 20 Proportional
IXC 0.01 0.005 0.1 20 Proportional
KARM 1 1 0.01 120 Proportional
LTC 0.2 0.01 0.001 20 PPLNS
MEC 1 1 0.0001 40 Proportional
MOON 1000 500 1 50 Proportional
MYRH 1 1 0.01 120 Proportional
MZC 1 1 0.01 120 Proportional
NAUT 0.5 0.1 0.01 30 Proportional
NMC 0.1 0.01 0.0001 120 Proportional
NOTE 0.01 0.001 0.01 120 Proportional
NVC 0.1 0.1 0.01 20 Proportional
PPC 0.1 0.01 0.01 520 Proportional
SPT 1 1 0.01 70 Proportional
START 0.1 0.01 0.1 120 Proportional
TIPS 500 10 1 50 Proportional
TRC 1 1 0.01 120 Proportional
UIS 0.1 0.01 0.1 120 Proportional
UNB 1 1 0.01 120 Proportional
UNO 0.001 0.0001 0.00001 120 Proportional
URO 0.2 0.1 0.001 120 Proportional
VIA 0.5 0.1 0.01 100 Proportional
WDC 1 1 0.1 50 Proportional
ZET 1 1 0.001 20 Proportional
Q: I made a withdrawal but it hasn't shown up yet!
A: We would love to make every effort to help you find your missing withdrawal, however it's best if you can check the relevant block explorer to see if the transaction is in the blockchain first. If the transaction is in the blockchain, you should check with the receiving end before emailing Multipool support.
Q: The pool isn't showing my correct hashrate! Rabble rabble!
A: Your miner does not communicate the hashrate it displays to the pool in any way. Your hashrate as displayed on the pool is an average, based on your valid, accepted shares per minute. If you're connected and submitting shares, the pool's calculations are normally correct within 10%, so if you think your hashrate seems low, and there do not seem to be any other obvious issues with the pool/website, the problem is most likely your miner. If you are mining scrypt, please follow this guide before submitting support requests via email or in the support threads.
Q: My GPU miner is displaying Gigahashes of speed mining Scrypt, but the pool isn't registering anything!
If your Scrypt GPU miner is displaying GH instead of KH or MH, you probably forgot to include the --scrypt flag in your cgminer command line.
Q: How does the Multiport work?
A: Every minute, a script runs that calculates the profitability of each coin. If the most profitable coin is different than the one that's currently being mined, the port will switch to the other coin as long as it's been mining on the current coin for at least a certain amount of time.
Q: But by the time I go to sell my coins, they might not be profitable any more!
A: Coin profitability is a function of both current price and current difficulty. The idea is to mine coins while their difficulty is low, so that you get more coins for your hashpower. That said, there can be some price variability in the altcoins, so you can choose to sell your coins right away, or hold them until you believe they're at an attractive price.
Q: What is Profitability?
A: Profitability is displayed as Bitcoins per Megahash per day for Scrypt, Scrypt-N and X11 coins, and Bitcoins per Gigahash per day for SHA-256 coins. Coins with fast difficulty adjustments can vary wildly in their displayed profitability, so you should not count on this number to be an estimate of the number of coins you will actually make in a day if you only mine that coin. For a more accurate estimate, you should use a site that uses an average difficulty number like Whatmine or Coinwarz
Q: How is Profitability calculated??
Profitability is calculated by taking into account the current price at which each coin is trading, as well as the difficulty of mining that particular coin. There are some internet websites that track the profitability of many coins, such as CoinWarz, Whatmine, and Dustcoin.
Q: My miner says I'm submitting shares but my balance isn't changing!
A: This is not a PPS (Pay-Per-Share) pool. Pay-per-Share pools generally charge a much higher fee, in the neighborhood of 3-5%. This pool uses a modified Proportional scoring system. Your balance will not update until a block is found.
Q: Why do I have three balances?
A: The first balance is your confirmed balance, which is available for you to withdraw. The second is your unconfirmed balance, which is the amount you've earned for blocks that have been solved by the pool, but have not yet been paid out (the blocks are not yet confirmed in the blockchain). You can see which blocks are still waiting to be confirmed on the Pool Stats page.
The third balance (Estimate) is not really a balance at all, but an estimate of how much you would be paid for the current block if the block were to be found right now. You'll find that if you stop mining, the estimate will start to drop. This is because as more people submit shares, the number of shares submitted by you in the Last N shares starts to drop. If you continue mining at your current rate until the next block is found, the estimate should stay close to the same unless the pool hashrate increases substantially during the same time period.
Q: When we're mining on Bitcoin, my difficulty setting doesn't work!?
A: Our upstream Bitcoin pool uses its own vardiff scheme. We cannot change this. Over time, your payouts should be the same no matter what difficulty setting you use. You can get a lower starting difficulty by using port 9332 (for direct BTC mining) or port 9999 for Multiport mining.
Q: Can I check Multipool's info at the upstream pool to make sure you're not ripping me off?
A: Yes, you can view the list of blocks at Slush's pool and match them up with the blocks on our BTC stats page.
Q: What are 'Round Shares'?
A: This pool only accepts round shares. We do not accept square shares. If your miner is submitting square shares, you may need to check the configuration. Ha ha, just kidding, Round Shares means shares in the current "Round". The current round is defined as the time period that contains the shares that would be counted if a block was found as of the last time estimates were calculated. Normally this is the time period since the last block was found.
Q: I forgot my password and/or PIN, how can I reset them?
A: Log out and click "Forgot Password". The pool will send you an email. Use the link in the email to reset your password and/or PIN.
Q: How do I get started?
Q: What is share difficulty, and what should I set mine to?
Each hash calculated by your miner results in a random number. If this random number is below a certain threshold (known as the target), then it can be submitted to the pool and credited. Shares above the target are not submitted. Target and difficulty are inversely proportional to each other (the higher the difficulty, the lower the target). This is why you may sometimes see warnings in your miner about a share being "Above Target".
Over long time periods, share difficulty does not matter, and the default of 64 should work fine for anyone. If you have a very high speed miner, please increase your share difficulty to an appropriate setting. You can connect as many miners as you like using a single worker. We suggest the following difficulty setting per worker based on the worker's aggregate hashrate:
Scrypt and X11 coins:
Below 500KH: 32
500+: 64
1000+: 128
2000+: 256
3000+: 384
5000+: 512
10000+: 1024
25000+: 2048
50000+: 4096
100000+: 8192
250000+: 16284
SHA-256 coins:
1MH-500GH: 256
500GH-1TH: 512
1TH+: 1024
5TH+: 4096
10TH+: 8192
20TH+: 16384
50TH+: 32768
If you need an even higher share difficulty, please email support.
Q: How do the different reward systems work?
Proportional: The pool divides the number of shares you submitted for a block (or over a group of blocks) by the total amount of shares submitted for that block (or over the same group of blocks). That number is your portion of the total reward for that block. This system is generally considered to be the most fair, but unfortunately it is vulnerable to pool hopping. We currently only use the Proportional system on coins that are not targets for pool hoppers.
PPLNS: The same as proportional, except rather than using block boundaries, only the last 'N' shares are counted. For Litecoin, currently, we the pool scores shares submitted over the past 144 blocks found by the network, which works out to approximately six hours. This method cannot be gamed by pool hoppers.
Exponential: Each share is assigned a score based on how long it was submitted before a block was found. The sum of the user's score is divided by the entire pool's score for that block to determine the user's portion of the earnings. Our method is identical to the method used on Slush's pool, and you can read more about the technical details there. The important thing to realize about this reward system is that only the users who were submitting shares during approximately the last 90 minutes before a block is found will receive credit for those shares. This system is extremely fair as long as you are consistently mining on the pool, but it punishes pool hoppers severely.
Q: Why are there ads on the site if you charge a fee?
At the beginning, the pool had no fee and ads were enabled in an attempt to make enough revenue to pay for the servers. Since Scrypt coin difficulty has skyrocketed, the situation has been much the same, even with the pool fee. The ads help defray the server costs for running the pool. We attempted to keep the ad placement unobtrusive and no longer have ads at the top of the page. Also, most ads are hidden for those who are donating at least 1%, and you always have the option of enabling an ad blocker if you don't wish to see ads. We don't mind.
Q: What if I need more hashing power quickly?
You can rent hash quickly at Mining Rig Rentals or Nicehash!
