Bitcoin Mining Software


This is a subreddit devoted to long-term and short-term trading of Litecoins.


For discussion about Litecoin, the leading cryptocurrency derived from Bitcoin. Litecoin is developed with a focus on speed, efficiency, and wider initial coin distribution through the use of scrypt-based mining.


This subreddit has been created as an alternative to /Libertarian which many have begun to feel has become a "Republican-lite" domain rather than a *real* libertarian domain.

Groestlcoin September 2019 Development Release/Update!

For a more interactive view of changes, click here
In our current world; bordering on financial chaos, with tariff wars, Brexit and hyperinflation rife, you can count on Groestlcoin to consistently produce innovation that strikes to take the power away from the few and into the many, even after a full five and a half years of solid development.
Here is what the team has already announced in the last 3 months since the last development update:

What's Being Released Today?

Groestl Nodes

What am I?

Groestl Nodes aims to map out and compare the status of the Groestlcoin mainnet and testnet networks. Even though these networks share the same protocol, there is currently no way to directly compare these coins in a single location. These statistics are essential to evaluate the relative health of both networks.


Source - Website

Groestlcoin Transaction Tool

What am I?

This is a tool for creating unsigned raw Groestlcoin transactions and also to verify existing transactions by entering in the transaction hex and converting this to a human-readable format to verify that a transaction is correct before it is signed.



Groestlcoin AGCore

What am I?

AGCore is an Android app designed to make it easier to run a Groestlcoin Core node on always-on Android appliances such as set-top boxes, Android TVs and repurposed tablets/phones. If you are a non-technical user of Groestlcoin and want an Android app that makes it easy to run a Groestlcoin Core node by acting as a wrapper, then AG Core is the right choice for you.

What's Changed?

Source - Download

Groestlcoin Electrum

What's Changed?

Android Electrum-Specific

OSXWindowsWindows StandaloneWindows PortableLinux - Android
Server SourceServer Installer SourceClient SourceIcon SourceLocale Source

Android Wallet – Including Android Wallet Testnet

What am I?

Android Wallet is a BIP-0032 compatible hierarchial deterministic Groestlcoin Wallet, allowing you to send and receive Groestlcoin via QR codes and URI links.

V7.11.1 Changes

Groestlcoin Java Library SourceSource - DownloadTestnet Download


What am I?

Groestlwallet is designed to protect you from malware, browser security holes, even physical theft. With AES hardware encryption, app sandboxing, keychain and code signatures, groestlwallet represents a significant security advance over web and desktop wallets, and other mobile platforms.
Simplicity is groestlwallet's core design principle. Because groestlwallet is "deterministic", your balance and entire transaction history can be restored from just your recovery phrase.

iOS 0.7.3 Changes

Android v89 Changes

iOS SourceAndroid Source - Android DownloadiOS Download

Groestlcoinomi Released

What am I?

Groestlcoinomi is a lightweight thin-client Groestlcoin wallet based on a client-server protocol.

Groestlcoinomi v1.1 Desktop Changes

Groestlcoinomi Android v1.6 Changes

Groestlcoin Java Library SourceAndroid Source
Android DownloadWindows DownloadMac OS DownloadLinux Download

Groestlcoin BIP39 Tool

What's Changed?

Source - Download
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

Success with Raspberry Pi 3 and Blockchain API v2

I managed to get my Skyhook running on a Raspberry Pi 3 and it is successfully using the new Blockchain API v2 via the blockchain-wallet-service. The send-bitcoin process via the v2 service on the Pi3 takes only about 5 seconds. Not too bad at all.
Although it may be possible to image a MicroSD card with the contents of the regular Pi1 SD card, I opted to start from a fresh Rasbian Jessie (non-lite) install and start assembling the pieces from there.
After the usual Raspberry Pi setup procedures (expand filesystem, configure to boot to console, apt-get update, apt-get dist-upgrade etc etc)... here is a list the things I needed to address to get everything working. Please note I assembled this list through a lot of trial and error and had to backtrack a few times. I tried to keep track of just what was necessary but it is possible I missed some items from my notes below.
I mounted my original skyhook SD card via USB on my Pi3 so I could copy across files as needed. Whenever copying files, keep the permissions and ownership etc (cp -a) Also, when copying over config files, keep the original if possible. Sometimes handy to reference.
Install needed packages
Compare your old and new /vacache/apt/archives and start filling in the missing pieces. I started with php5, php5-mcrypt, apache2 etc. etc. I didn't try to duplicate those lists... just installed the obviously needed ones.
Main skyhook web directory
Copy your /vawww/btc dir across to the new pi.
Configure PHP
Copy /etc/php5/apache2/php.ini across and comment out (with semicolons) the 5 lines related to 'apc' at the bottom. I tried installing the library and ran into problems and found elsewhere that apc isn't really necessary anymore (?) with more recent php.
Configure Apache
Copy your /etc/apache2/sites-available/skyhook config file across to the new pi and add a symbolic link from the site-enabled (and remove the link for the default one). Note that you need to name the file with a .conf extension now. So name it "sites-available/skyhook.conf" and symbolically link it with the same name.
The mod-rewrite module needs to be enabled. Create the necessary symbolic link in mods-enabled to the mods-available dir.
Restart apache2.
Setup MySQL
Copy across the database dir to new pi: /valib/mysql/skyhook/
You also need to copy across ibdata1, ib_logfile0 and ib_logfile1 from the /valib/mysql directory.
Change ownership of all those files to mysql:mysql if they aren't already.
Restart mysql.
Add the "skyhook" mysql user with skyhook DB permsissions with empty password. Run "mysql" as root. > GRANT ALL PRIVILEGES ON skyhook.* To 'skyhook'@'localhost' IDENTIFIED BY ''; > FLUSH privileges;
Bill Scanner
The bill-scanner driver gets executed during the purchase stage and is executed as used "www-data". The original setup would modify the ownership of /dev/ttyUSB0 at bootup so that www-data could access it. This doesn't seem to work anymore on Jessie and the device remains with root:dialout ownership. So, instead, I just added www-data to the dialout group.
$ sudo usermod -a -G dialout www-data 
The python script also needs the "pycrypto" library.
$ sudo apt-get install python-crypto 
Temp ramfs directory
When you boot your Skyhook and type your admin password, the decrypted blockchain credentials (etc) are stored in a ramfs mount /tmp_disk
Create the directory as root then add the following to /etc/rc.local to properly setup the ramfs at boot (add it just above the exit 0):
/bin/mount -t ramfs -o size=32m,rw,uid=pi,gid=www-data,discard,user ramfs /tmp_disk /bin/chown pi:www-data -R /tmp_disk /bin/chmod 0770 /tmp_disk 
Blockchain API v2 wallet service
Install the wallet service as per:
I needed a newer version of nodejs and npm than is provided in the Jessie repo. Use this:
The addition of the new blockchain v2 api_key needs to be integrated into the php files. I don't have my changes documented so will need to add that in a comment later. Sorry.
To have the wallet service run at bootup I added the following to my /etc/rc.local file (again, somewhere above the "exit 0"):
cd /tmp # needed so nohup can output its nohup.out logfile /sbin/runuser www-data --shell=/bin/sh -c "/usbin/nohup /usbin/blockchain-wallet-service start &" 
I opted to have the service run as "www-data".
The Pi will have two network interfaces. The ethernet plug (eth0) and the Nexus wifi (usb0). Jessie does networking slightly differently. See:
In /etc/network/interfaces I commented out the wlan0 and wlan1 sections, set the eth0 interface to 'manual' and added a new interface line for the Nexus usb0 interface.
iface usb0 inet manual 
With those interfaces set to 'manual' in there, you now need to configure them in /etc/dhcpcd.conf The eth0 will default to dhcp but I added the following lines to the bottom of the file for usb0:
interface usb0 static ip_address= static routers= static domain_name_servers= 
And that was it!
Along the way I found the following logs useful for diagnosing errors:
Not sure how alive Project Skyhook is anymore but I hope this is useful for some people. Please let me know if you have any questions and I'll do my best to answer them.
submitted by TKRSRY to projectskyhook [link] [comments]

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CryptoCurrency Portfolio v3 for Google Sheets - Setup

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