Frequently Asked Questions (FAQ)

For instructions on how to connect see the help section. See also our guide on BlockCypher blog.
For instructions on how to request payout see our guide on BlockCypher blog.

Yes, you can. See the following instructions depending on which exchange you want to send grins to:

You can follow BitForex guide or simply follow these 3 steps:
  1. Login on BitForex and copy your BitForex UID.
  2. On your Grinmint dashboard, click the "Settings" tab, paste the https://grinproxy.bitforex.com/UID (where UID is the previous value) in the "wallet url", enter your password and click the update settings button.
  3. Finally, go to the "Payouts" tab and click the "Withdraw/Finalize" button. Go to the HTTP tab, enter your password and click the "Withdraw" button.
The easiest way is to request HTTPS payouts directly to your Poloniex account. You can follow Poloniex guide or simply follow these 5 steps:
  1. On your Poloniex account, go to "Deposits & Withdrawals".
  2. Search for GRIN and click on the "Deposit" button.
  3. Click "View Deposit Address" and copy the URL (it should be something like https://poloniex.com/public?currency=GRIN&command=createDeposit&id=xxxx)
  4. On your Grinmint dashboard, click the "Settings" tab, paste the previous URL in the "wallet url", enter your password and click the update settings button.
  5. Finally, go to the "Payouts" tab and click the "Withdraw/Finalize" button. Go to the HTTP tab, enter your password and click the "Withdraw" button.
Yes, you can mine with a CPU. However, it might take several hours to find a single share.
Yes, GPU mining is currently the most profitable way to mine Grin.
The block reward is 60 grins.
The Grin block time is set to one minute.
In order to receive grins directly in your wallet with HTTP payouts, you have to set a valid wallet IP or domain in your dashboard settings.
Make sure your wallet is reachable from the outside. In your grin-wallet.toml, you must have set the following value api_listen_interface = "0.0.0.0".
In order to receive grins in your wallet you need to do two things. First, you have to "receive" the transaction in your wallet with the 'grin wallet receive' command. Finally, upload the transaction in your dashboard by clicking the "Finalize Transaction" button. That's it!
Grin requires at least 24 hours (1440 blocks) before the coinbase is transferable.
You can learn more about Grin in the Grin Wiki.
By using a +randomvalue after your email, it is harder for someone to know your account. You don't need to create such specific email account. By default email sent, for example, on satoshi+1234@nakamoto.com lend on satoshi@nakamoto.com.
Your account was created without password. You can only request email payout. If you wish to create a regular account with the same email, simply add a wildcard in your email e.g. satoshi+randomvalue@nakamoto.com and don't forget to specify a password in Stratum!
Make sure you miner is submitting share. It can take a few minutes before your miner appears on your dashboard.
We compute your hashrate based on the number of shares you submitted in the last 10 minutes. If you want to check your effective hashrate (hashrate based on the number of valid shares submitted) on Grinmint, you can do the following:
  • Take N, the number of shares submitted in the last hour.
  • Compute the following: GPS = D*42*N/3600, D is the pool difficulty. Currently 4.
  • Finally, most of the mining software are overestimating your hashrate.
    We pay the payouts on a first come first serve basis. Please be patient your payout will arrive.
    PPLNG stands for Pay Per Last N Graphs. Everytime we find a block we:
  • Look at the shares submitted in the last hour.
  • Each share is assigned a share value based on its graph weight (C33 is worth more than C32)
  • We make a sum of this weights and we divide the block reward (including transaction fee) by it. This give us a base reward per share regardless of the graph weight.
  • We pay each user by multiplying this base reward per share with the number of shares of a type per block and the share value of this type of share.
  • Grin是实验性的货币:使用风险自负! Grinmint不保证挖矿时间或算力的任何回报。强烈建议您尽快地收益从矿池中转移到您控制的钱包中。尽管Grinmint采取了多种预防措施来确保用户资产的安全,但我们不提供任何防止黑客入侵或丢失的保证。Grinmint不是钱包。用户自己承担留在Grinmint上的任何资产的风险。收益到期60天后,您的收益将被视为过期,因此您将无法再为它们请求付款。