Fairbrix is a direct predecessor to Litecoin, developed by Charlie Lee. The coin specifications of Fairbrix are as follows:

• scrypt as a proof of work algorithm
• 5 minute block targets
• 25 coins per block (constant block reward, forever)
• 2016 blocks (about one week) to retarget difficulty

Fairbrix is the predecessor of Litecoin and the first foray into altcoin development by Charlie Lee, the future founder of Litecoin. Abandoned by Charlie Lee in 2013 prior to launching Litecoin, Fairbrix was re-discovered and revived in late 2023 by a voluntary team of long time crypto enthusiasts, with contributions from GeraldoNonKYC.

This release represents their efforts to modernize Fairbrix and serves as the re-introduction of Fairbrix to the modern crypto world.

This version (Fairbrix 0.8.3.7beta) is based on Litecoin version 'exp-0.8.3.7-cc' (Coin Control).

The coin specification of Litecoin are as follows:

• 2.5 minute block targets
• subsidy halves in 840k blocks (~4 years)
• ~84 million total coins The rest is the same as bitcoin.
• 50 coins per block
• 2016 blocks to retarget difficulty

Bitcoin is a free open source peer-to-peer electronic cash system that is completely decentralized, without the need for a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of a P2P network to check for double-spending.

Build instructions

Debian, Ubuntu, Mint

Install Qt Creator.

Install libminiupnpc-dev.

Make sure that the required packages for Qt4 development of your distribution are installed, for Debian and Ubuntu these are:

apt-get install qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev \
    libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev \
    libssl-dev libdb++-dev

then execute the following:

qmake
make

Alternatively, use Qt Creator and open the bitcoin-qt.pro file.

An executable named fairbrix-qt will be built.

Windows

see https://bitcointalk.org/index.php?topic=149479.0 ("Building headless Bitcoin and Bitcoin-qt on Windows")

• "Qt 4.8.5 command prompt" means: run C:\Qt\4.8.5\bin\qtvars.bat from Windows command prompt (as administrator)

• Steps 3.2 and 4.2 are already done.

• An executable (in the \release folder) will be built.

Notes:

• You will also need to distribute mingwm10.dll along with the executable(s).
• Only use libgcc_s_dw2-1.dll, libstdc++-6.dll and mingwm10.dll from C:\MinGW\bin folder, and QtCore4.dll, QtGui4.dll and QtNetwork4.dll from C:\Qt\4.8.5\bin folder. (DLLs with same name from other folders crash the executable)
• Keep Qt 4.8.5 installed. (optional but recommended)

License

Fairbrix is released under the terms of the MIT license. See COPYING for more information or see http://opensource.org/licenses/MIT.