Hash RefineryHome Pool Wallet Graphs Miners Explorers  Next Payout: 16:16 UTC (0 hours, 0 minutes)
MachineCoin on timetravel algo has been added. Fees will be 0.25% for the first 25 blocks. Happy mining!
The BWK blockchain is broken again and Cryptopia have the wallet in maintenance. The wallet has been completely disabled on the pool and is unlikely to return.
VUC has been removed as it has not been tradable on an exchange in some time. There will be no more payouts in VUC.


By default, yiimp will adjust the difficulty of your miner automatically over time until you have from 5 to 15 submits per minute. It's a good trade off between bandwidth and accuracy.

You can also set a fixed custom difficulty using the password parameter. For example, if you want to set the difficulty to 64, you would use:

-o stratum+tcp:// -u wallet_adress -p d=64

Here are the accepted values for the custom diff:

Scrypt, Scrypt-N and Neoscrypt: from 2 to 65536

X11, X13, X14 and X15: from 0.002 to 0.512

Lyra2: from 0.01 to 2048

If the difficulty is set higher than one of the a mined coins, it will be forced down to fit the lowest coin's difficulty.