# Grinmint Mining Pool

**URL:** <https://forum.grin.mw/t/grinmint-mining-pool/765>\
**Category:** Mining\
**Created:** [September 6, 2018, 5:02pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765 "2018-09-06T17:02:41Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![catnic](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/catnic/32/373_2.png) [@catnic](https://forum.grin.mw/u/catnic)\
**Post date:** [September 6, 2018, 5:02pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/1 "2018-09-06T17:02:41Z")

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First, my compliments and thanks to the team behind Grin. I’ve been following (silently lurking) all the work that’s been done to date and am duly impressed.

Second, I wanted to let the forum know about the release of BlockCypher’s mining pool for Grin [www.grinmint.com](http://www.grinmint.com) and our desire to help fund further development work using its proceeds. The pool is still in beta and we’ll be improving it over the next few months.

Third, the post that explains the background behind it [https://blog.blockcypher.com/grin-mining-pool-47286f5e0b8d](https://blog.blockcypher.com/grin-mining-pool-47286f5e0b8d)

And Fourth, we’ll be continuing our donation to YeastPlume’s fundraising campaign: you can count on us for at least 1BTC.

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**Author:** ![0xb100d](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/0xb100d/32/364_2.png) [@0xb100d](https://forum.grin.mw/u/0xb100d)\
**Post date:** [September 6, 2018, 7:27pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/2 "2018-09-06T19:27:56Z")

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Thanks Catheryne! Dedicating proceeds from the pool to grin development is fantastic and I hope a trend that will catch on with other grin projects. It is exactly in line with the premise of community built software and that sort of pragmatism and initiative sets an extremely important example.

What will the pool fee be, is that decided yet?

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**Author:** ![lionelve](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/lionelve/32/375_2.png) [@lionelve](https://forum.grin.mw/u/lionelve)\
**Post date:** [September 6, 2018, 10:18pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/3 "2018-09-06T22:18:05Z")

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Hi Catheryne & All,

Noob question. If I mine to a pool do I still need to run a node?

thanks.

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**Author:** ![catnic](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/catnic/32/373_2.png) [@catnic](https://forum.grin.mw/u/catnic)\
**Post date:** [September 6, 2018, 10:42pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/4 "2018-09-06T22:42:41Z")

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Not decided yet, but we’ll be in-line & competitive with typical pool fees.

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**Author:** ![catnic](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/catnic/32/373_2.png) [@catnic](https://forum.grin.mw/u/catnic)\
**Post date:** [September 6, 2018, 10:43pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/5 "2018-09-06T22:43:43Z")

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No, you just have to run the miner. But it’s still good practice to run a node.

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**Author:** ![keno](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/keno/32/26_2.png) [@keno](https://forum.grin.mw/u/keno)\
**Post date:** [November 12, 2018, 9:27am UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/6 "2018-11-12T09:27:29Z")

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I have been testing the pool a lot over the last days and had some problems with email payouts when I wouldn’t receive an email at all. In that case it would be better if there would be an option to resend an email.

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [November 12, 2018, 6:37pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/7 "2018-11-12T18:37:22Z")

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Thanks @keno for trying out GrinMint! I’ll look for a wait to resend an email payout. Out of curiosity have you look in your spam folder?

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**Author:** ![keno](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/keno/32/26_2.png) [@keno](https://forum.grin.mw/u/keno)\
**Post date:** [November 12, 2018, 8:31pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/8 "2018-11-12T20:31:16Z")

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I looked through everything in the end it just took a couple of hours to arrive. Apart from that: from a user perspective it is a bit difficult to understand how a password change can be initiated. (Basically I am just playing around with all the functions I might want to use in the future). Does the new password have to be used by all workers from the specific IP addresses which were used before or just by all rig IDs? it would also be useful to know which IP is set at the moment as a way of payout. Maybe the hash of it could be displayed?  
Also it would be useful if there was an error check specifically on the website to check whether the same file is uploaded to finalize the transaction as sent by email. maybe you could check for the .receive file ending?  
It’s also really encouraging seeing you being so active here. 🙂

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [November 13, 2018, 5:43pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/9 "2018-11-13T17:43:45Z")

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> Does the new password have to be used by all workers from the specific IP addresses which were used before or just by all rig IDs?

Currently, you have to update all your active miners (active is the last 24h) with the new passphrase. However this is not very safe so this is expected to change very soon.

> it would also be useful to know which IP is set at the moment as a way of payout. Maybe the hash of it could be displayed?  
> Okay this is actually a work in progress function and this should appears in the “Settings” very soon.

> Also it would be useful if there was an error check specifically on the website to check whether the same file is uploaded to finalize the transaction as sent by email. (IP Check probably)

I just added that yesterday :).

> It’s also really encouraging seeing you being so active here. 🙂

Thanks, feel free to ask about any features you’d like in GrinMint.

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**Author:** ![keno](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/keno/32/26_2.png) [@keno](https://forum.grin.mw/u/keno)\
**Post date:** [November 13, 2018, 7:02pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/10 "2018-11-13T19:02:20Z")

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Well this password update didn’t work for me yet even though the old password has not been used on miners during the last 24 hours.

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [November 14, 2018, 2:43pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/11 "2018-11-14T14:43:39Z")

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Hey @keno. Thanks for the feedback. I’m currently fixing this issue along with displaying the password in the settings. I’ll get back to you shortly.

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [November 15, 2018, 4:08pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/12 "2018-11-15T16:08:50Z")

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Should be good know!  
Password update is still not functional though but you can still see you password and monitor settings in “Settings” tab.  
Next I’ll fix the password update and add the possibility to receive an email anytime your workers goes down.

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [November 29, 2018, 6:04pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/13 "2018-11-29T18:04:37Z")

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Just to let you know that we’ve updated GrinMint with the following features:

- Password are now real password use to update your settings.
- Settings contain a wallet field that you can set and update using your password
- Your password is the same as before (IP or domain of your wallet)

Let me know if you encounter any issue!

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**Author:** ![urza](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/urza/32/20_2.png) [@urza](https://forum.grin.mw/u/urza)\
**Post date:** [January 7, 2019, 10:04am UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/14 "2019-01-07T10:04:13Z")

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Hi, is this the right place to discuss GrinMint pool issues?

Yesterday I tried mining something from GrinGloldMiner and then accidentaly deleted my config which was the only place with my pool password. What are my options how to change the password now? Do you have password reset via email? I imagine I am not the only one to whom this will happen.

Also please bear in mind that the password is stored in plaintext on the miners. So it might be good idea to design security around this and instead use “email confirmations” (send temporary link to email) for all critical user operations on pool.

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [January 7, 2019, 2:58pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/15 "2019-01-07T14:58:44Z")

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Hey @urza, this is the right place.  
We are currently investigating a password reset function. I’ll let you know here whenever this is implemented. In the meantime, contact me by DM so we can sort this out.

> Also please bear in mind that the password is stored in plaintext on the miners. So it might be good idea to design security around this and instead use “email confirmations” (send temporary link to email) for all critical user operations on pool.

This is definitely something we are considering, however we are currently focus on critical features for launch so this might be implemented later.

Also please note that we will likely do not require a password check for stratum connection. Meaning it’s only use the first time and you can remove it from your config file after.

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**Author:** ![n15e](https://avatars.discourse-cdn.com/v4/letter/n/d2c977/32.png) [@n15e](https://forum.grin.mw/u/n15e)\
**Post date:** [January 7, 2019, 8:02pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/16 "2019-01-07T20:02:35Z")

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Hi! I’m testing my rig at Grinmint pool. I can’t process the Email Payout (while the Http Payout is working). I’ve tried on two Linux boxes running 2 distros. Is it my fault? Is it a bug? Thank you!

The TX file ends like this:

… ,“part\_sig”:null,“message”:"",“message\_sig”:null}]}

Email Payout response is:

mpp@slacki:~/Downloads$ grin --floonet wallet receive -i ~/Downloads/tx-a189867a-a81d-45e0-a3d2-73243f14d36e  
Password:  
20190107 20:45:01.943 ERROR grin\_core::libtx::slate - verify\_messages - participant message doesn’t have signature. Message: “”  
20190107 20:45:01.944 ERROR grin\_wallet::command - Error validating participant messages: LibTx Error  
Wallet command failed: LibWallet Error: LibTx Error

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<div class="post-metadata">

**Author:** ![urza](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/urza/32/20_2.png) [@urza](https://forum.grin.mw/u/urza)\
**Post date:** [January 7, 2019, 8:04pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/17 "2019-01-07T20:04:47Z")

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Thanks for the answer.

Dont worry about my testnet grins 🙂 I was just wondering how this will work when it happens to someone after mainnet launch.

> [@quentinlesceller](#):
>
> This is definitely something we are considering, however we are currently focus on critical features for launch so this might be implemented later.

Understand, we are under pressure with GGM as well 🙂 Good luck to you.

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [January 7, 2019, 8:04pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/18 "2019-01-07T20:04:48Z")

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Hey @n15e thanks you trying out Grinmint, are you running the latest version of grin? In the meantime I’ll check if everything is correct on our side.

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**Author:** ![n15e](https://avatars.discourse-cdn.com/v4/letter/n/d2c977/32.png) [@n15e](https://forum.grin.mw/u/n15e)\
**Post date:** [January 7, 2019, 8:07pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/19 "2019-01-07T20:07:32Z")

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Rust and grin are fresh. Git cloned 12 hours ago.

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**Author:** ![quentinlesceller](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/quentinlesceller/32/21_2.png) [@quentinlesceller](https://forum.grin.mw/u/quentinlesceller)\
**Post date:** [January 7, 2019, 8:18pm UTC](https://forum.grin.mw/t/grinmint-mining-pool/765/20 "2019-01-07T20:18:35Z")

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Okay let me investigate this.

[Next page](https://forum.grin.mw/t/grinmint-mining-pool/765.md?page=2)
