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SPEC integration/staging tree

  • Copyright (c) 2009-2015 Bitcoin Developers
  • Copyright (c) 2015-Present SPEC Developers
  • Copyright (c) 2015-Present CryptoWatcher Developers

Coin Image Coin Image Coin Image

What is SPEC?

SPEC is a lite version of Bitcoin using scrypt as a proof-of-work algorithm.

  • 5 minute block targets
  • Subsidy halves in 840k blocks (~8 years)
  • 3 billion total SPEC
  • 1250 SPEC per block
  • 4 blocks to Difficulty Retarget
  • Max 132 Million SPEC minted per year (16 year POW)
  • Coin Abbreviation= SPEC
  • Address letter= 5
  • RPC Port= 4320
  • P2P Port= 4319

SPEC is the native house token of, allowing trading enthusiasts to watch the top 5 exchanges from one singular location. CryptoWatcher also makes available services such as SMS/Text Price alerts and Chat and Live Chart Comparison between exchanges.

For more information, as well as an immediately useable, binary version of the SPEC client sofware, see


SPEC is released under the terms of the MIT license. See COPYING for more information or see

1 Click SPEC Node

From SSH (Tested on Ubuntu 14.x)

wget -O ; sudo bash

The above ssh command was tested on an Ubuntu 14.10 machine. The script is meant to update the machine and install everything needed to run a specd from scratch, including auto start on reboot etc.

Also included in is cURL and php5 in anticipation of the user installing our optional "node status" frontend. (

Not guaranteed to work for your server setup.

Node Status Frontend

Node GUI Demo &

Available from

Node GUI

Simply download the contents of the above repo to your web directory of choice (Must be a public directory in order for others to veiw)

Copy/rename php/config.sample.php to php/config.php and configure your node's RPC credentials. The application will connect to your node via RPC and report statistics.

Change the contents of php/config.php to match your server ip/url and settings found in ~/.spec/spec.conf (If you did not use the 1 Click Node setup, you will need to make sure you have a specd / [coin_name]d, php5 & cURL installed)

To use Google Analytics, simply create a file called inside the php directory and paste your GA code within.

Development process

Developers work in their own trees, then submit pull requests when they think their feature or bug fix is ready.

If it is a simple/trivial/non-controversial change, then one of the SPEC development team members simply pulls it.

If it is a more complicated or potentially controversial change, then the patch submitter will be asked to start a discussion with the devs and community.

The patch will be accepted if there is broad consensus that it is a good thing.

Developers should expect to rework and resubmit patches if the code doesn't match the project's coding conventions (see doc/coding.txt) or are controversial.

The master branch is regularly built and tested, but is not guaranteed to be completely stable.

Tags are created regularly to indicate new official, stable release versions of SPEC.


Testing and code review is the bottleneck for development; we may get more pull requests than we can review and test. Please be patient and help out, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code.

Unit tests for the core code are in src/test/. To compile and run them:

cd src; make -f makefile.unix test

Unit tests for the GUI code are in src/qt/test/. To compile and run them:

qmake BITCOIN_QT_TEST=1 -o Makefile.test
make -f Makefile.test
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