Bitcoin Merge Mining Pool

Stratum Hostmmpool.org Stratum Port3333 or 3334
Hashrate (Th/s) 23.76 Round Duration 24816:06:02 Round Shares 5,792,030,955,711 Round CDF 30.72%

2020-05-11: The bitcoin halvening has occurred and the new block reward rate is 6.25 BTC per solved block.

FAQ

How do I configure common miners?

bfgminer
Stratum: ./bfgminer -o stratum+tcp://mmpool.org:3333 -u myuserid -p anything
cgminer
Stratum with starting difficulty 16: ./cgminer -o stratum+tcp://mmpool.org:3333 -u myuserid -p anything --suggested-diff 16
cgminer using TOR
Stratum: usewithtor ./cgminer -o stratum+tcp://phkttm64gbquasaq.onion:3333 -u myusername -p anything

Can I start mining with a higher difficulty?

Yes, There is a high difficulty stratum server running on port 3334. This starts at difficulty 2,500,000. It is designed for use for services like NiceHash that require a higher difficulty on start. To use this, replace port '3333' with '3334' in your miner configuration for the pool.

Can I use rental services to mine here?

Yes, rental services have been used successfully to mine at mmpool.

How can I adjust the difficulty I mine at?

Difficulty is automatically adjusted by the pool based on the number of share submissions made. With cgminer you can set a suggested starting difficulty using the "--suggested-diff" argument if 65535 is too high or low. It will automatically adjust up or down from there.

What password do I use?

The password is ignored and can be set to anything.

When do I get paid bitcoins?

The reward is paid out using the Double Geometric Method (DGM) and this is paid out when a block is found. This depends on pool hash rate.

Does the pool support access via TOR

Yes, the pool runs a hidden service on phkttm64gbquasaq.onion. You can access the website and mine on stratum using this service.

How do I change my coin addresses?

Coin addresses cannot be changed. They are immutable to prevent accounts from being hacked and changed. This means you must have access to the private key for your address or trust that any operator of services you use to hold your keys won't change them.

What is the DGM reward method?

The Double Geometric Method is a reward system developed by Meni Rosenfeld. It aims to solve the issues caused by pool hopping while providing a reward system where variance is not too high for users and pool operators.

Some features to note of DGM:

  • Your earnings work like a capacitor. When you start mining it needs to charge so initial earnings are lower than expected. When fully charged they reach a normal level of earning. When you stop mining you continue to receive earnings until it is discharged. The end result should be equivalent to PPS.
  • Payments are made to your balance when a block is found. If the round is short you may get more than the PPS rate. If a series of long rounds occurs then your payments may be less than PPS. Overall it will average out
  • .
  • The risk to the pool is much lower making it more likely to survive while balancing with low variance for miners. These parameters (more risk to pool, less to miners) can be tweaked and we can adjust it over time.

What are the obfuscated usernames in the statistics?

The usernames in all the statistics are obfuscated to prevent easy guessing. They are the first 8 characters of the SHA256 of the username. You can see what your obfuscated name is in the user stats and use this to identify yourself in the statistics.

Is there a withdrawal fee?
The fee for withdrawals is the bitcoin transaction fee to send the coins. This is automatically subtracted from the amount sent by the bitcoin client. For this reason, when you do a withdrawal you will receive your coin balance minus the bitcoin network transaction fee.