Solo Mining Digibytes - NVIDIA ccminer

Solo Mining Digibytes
NVIDIA ccminer

I've seen different guides on how to solo mining DigiBytes, but none of them was explaining how to do it with ccminer. The following guide is based on several forum threads and few researches and tries.

It is quite simple and assuming to start from scratch this is what you should do (the guide is based on what I’ve done on Windows 10 x64, but it should work also with a different OS).

1. Download the official Wallet V6.14.2 from https://digibyte.co/digibyte-wallets
2. Install the Wallet
3. Launch the Wallet (to allow the generation of all the required files such as wallet.dat etc.), but do not synchronize
4. Close the Wallet
5. Open your Wallet link and add the “--server” parameter (in my case the target is "C:\Program Files\DigiByte\digibyte-qt.exe" --server)
6. Download the Digibyte blockchain (.zip file) from http://cryptochainer.com/dir/ (this is to speed up the synchronization of the wallet)
7. Copy the .zip file to the Digibyte folder, located in /Users/%YOUR_USER%/AppData/Roaming/DigiByte
8. Create backup of wallet.dat file (this is your actual wallet)
9. Delete all files & folders, except for wallet.dat and the .zip file
10. Unzip the .zip file directly into the folder
11. Delete the .zip file

If the original wallet.dat was moved, copy wallet.dat back to the DigiByte folder. Always make backups of your wallet.dat files.

1. From Windows Explorer create a new text file in the Digibyte folder (/Users/%YOUR_USER%/AppData/Roaming/DigiByte) and rename it as DigiByte.conf
2. In the DigiByte.conf file add the following parameters:
   Code:
   daemon=1
   port=12024
   server=1
   listen=1
   rpcport=14022
   rpcallowip=127.0.0.1
   algo=groestl
   rpcauth=user:1335d15a52c8c24ef246b73bf4b9741$44d37ba0cb46191f11749c3217c7e497da5e01f8e8e01bd501bb35fbfcc0c9ba
   addnode=24.17.180.135
   addnode=130.240.22.202
   addnode=176.31.126.191
   addnode=37.187.27.4
   addnode=185.128.41.158
   addnode=104.238.187.114
   addnode=76.169.57.92
   addnode=89.212.214.29
   addnode=217.120.129.169
   addnode=104.131.142.198
   addnode=45.79.2.70
   addnode=46.4.66.6
   addnode=67.198.30.16
   addnode=120.24.185.169
   addnode=81.169.208.246
   addnode=209.54.13.222
   addnode=68.55.199.104
   addnode=87.98.159.143
   addnode=73.221.241.33
   addnode=62.152.54.44
   addnode=188.165.194.146
   addnode=52.41.9.64
   addnode=216.250.125.121
   addnode=74.208.230.160
   addnode=69.164.206.169
   addnode=192.99.215.234
   addnode=96.126.114.208
   addnode=54.204.36.33
   addnode=192.99.41.108
   addnode=199.83.128.91
   addnode=199.83.132.91
   addnode=69.164.198.161
   addnode=66.228.56.115
   addnode=104.200.17.141
   addnode=45.79.149.192
   addnode=216.250.125.121
   addnode=74.208.230.160
   addnode=69.164.206.169
   addnode=192.99.215.234
   addnode=96.126.114.208
   addnode=54.204.36.33
   addnode=192.99.41.108
   addnode=199.83.132.91
   addnode=104.237.137.28
   addnode=45.33.7.79
   addnode=45.79.10.59

From the above parameters, you may change the “algo” if you want to run something different from myr-groestl and you can also change the “rpcallowip” if you are running the wallet on a machine different from your rig. You can also change “rpcauth”, but you will need to run the python script (https://github.com/digibyte/digibyte/tree/6.14.0/share/rpcuser) to calculate the auth code, so you can simply leave the values like they are here.

1. Save the file
2. Launch the Wallet (through the link with the “--server” parameter)

Let the wallet synchronize (it should not take long since you have already downloaded a good portion of the blockchain). Once the wallet is synchronized you have a ready-to-solo-mine wallet.

At this point you need a version of ccminer that supports the “--no-getwork” and “--coinbase-addr=” parameters. I found that the “ccminer-nanashi v1.7.6 r6” fork is working well, but if you find any other version supporting the same parameters than you are still ok.

1. Download “ccminer-nanashi v1.7.6 r6” from https://github.com/nicehash/ccminer-nanashi/releases
2. Create a new ccminer-solo.bat file and copy the below launch string
   Code:
   ccminer.exe -a myr-gr --url=127.0.0.1:14022 -u user -p l147_CovTnVvV4P0W5p8qa1B5Gs88EDqMo5OI9Fmo8Y= -i 20 --no-stratum --no-extranonce --no-getwork --coinbase-addr=D8Bf9PpGvMhXw72XqvqAnyQaPqPvLwgDSH

Of course, change the coinbase-addr with the address you can find from your wallet (File > Receiving Addresses…) and you can also change the IP in case you are running the wallet on a different machine. Also, you can change the intensity. I’m using “-i 20” with the 1080ti, but you can set the same intensity you use while mining on pools. Username and Password are already set to match the key you configured in the DigiByte.conf file, if you generated the key on a different username using the python script, then you need to change also username and password here.

1. Only when the wallet is completely synchronized launch the ccminer-solo.bat file
2. Done! You are solo mining DigiBytes!

If it happens, don’t bother about the “JSON key ‘data’ not found” error message that pops out constantly, it is only because during the block switch there is no actual data to work on.

To slightly increase the hash rate you can try also the following steps:

1. Create a new pump-the-beast.bat file with the following text
   Code:
   @echo off
   :loop
   goto loop

2. Launch the pump-the-beast.bat file (it does nothing but increasing the I/O load of your machine, not sure why, but on my Windows 10 x64 machine increases the hash rate of some points)

If you feel like rewarding me with your first solo block do not hesitate to donate DigiBytes to my address “D8Bf9PpGvMhXw72XqvqAnyQaPqPvLwgDSH”. It would be really appreciated.