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Initial version of the wallet (deprecated, for historical purposes only)
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share Reward Reduction & KGW Implementation Sep 9, 2014
README Update Readme Sep 9, 2014

SolarCoin integration/staging tree


Copyright (c) 2009-2014 Bitcoin Developers Copyright (c) 2011-2014 Litecoin Developers Copyright (c) 2014 SolarCoin Developers

What is SolarCoin?

SolarCoin [SLR] is a lite version of Bitcoin using scrypt as a proof-of-work algorithm.

  • 140 Character Transaction Messaging
  • 100 coins per block initial rewards, halving every 525,600 (once a year) blocks.
  • 1 Minute Block Targets
  • 1440 Block Difficulty Adjustments
  • RPC PORT = 18181
  • P2P PORT = 18188
  • Public Key: 18
  • Addresses begin with '8'
  • nChainStartTime: 1384473600
  • Genesis Block Hash: edcf32dbfd327fe7f546d3a175d91b05e955ec1224e087961acc9a2aa8f592ee
  • Merkle Root: 33ecdb1985425f576c65e2c85d7983edc6207038a2910fefaf86cfb4e53185a3

Harforks: Block 310,000 (Implemented block reduction & Patched KGW retargeting algorithm)

QR Code Support

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


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

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 SolarCoin 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 (if they haven't already) on the mailing list

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 SolarCoin.


Testing and code review is the bottleneck for development; we 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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