Fabcoin is a decentralized blockchain project built on Fabcoin's UTXO model, with support for Ethereum Virtual Machine based smart contracts, and secured by a proof of stake consensus model. It achieves this through the revolutionary Account Abstraction Layer which allows the EVM to communicate with Fabcoin's Fabcoin-like UTXO blockchain. For more general information about Fabcoin as well as links to join our community, go to https://fabcoins.info

Welcome to the Fabcoin Ignition Main Network. This is the main network where the tokens hold value and should be guarded very carefully. If you are testing the network, or developing unstable software on Fabcoin, we highly recommend using either testnet or regtest mode.

The major features of the Fabcoin network include:

1. Compatibility with the Ethereum Virtual Machine, which allows for compatibility with most existing Solidity based smart contracts. No special solidity compiler is required to deploy your smart contract to Fabcoin.
2. A Proof of Stake consensus system which is optimized for Fabcoin's contract model. Any user can stake and help to secure the network. There is no voting, master nodes, or minimum amount required. There have been transactions as small as 2 Fabcoin that have created blocks in the past.
3. The Decentralized Governance Protocol is completely implemented and functional, which allows certain network parameters to be modified without a fork or other network disruption. This currently controls parameters like block size, gas prices, etc.
4. Uses the UTXO transaction model and is compatible with Fabcoin, allowing for existing tooling and workflows to be used with Fabcoin. This allows for the infamous SPV protocol to be used which is ideal for light wallets on mobile phones and IoT devices.

Note: Fabcoin Core is considered beta software. We make no warranties or guarantees of its security or stability.

These are some resources that might be helpful in understanding Fabcoin. Note that the unofficial documents are not created by the Fabcoin team.

Basic usage resources:

• Official Fabcoin Usage Guide
• Unofficial Fabcoin staking tutorial
• Unofficial Fabcoin staking tutorial on Raspberry Pi
• Unofficial Fabcoin staking tutorial on AWS EC2
• Unofficial guide for keeping your wallet safe
• Block explorer
• Unofficial block explorer

Development resources:

• Deploying a custom token to Fabcoin
• Early example faucet contract
• Unofficial Fabcoin Hello World tutorial
• Fabcoin Book - A Developer's Guide To FABCOIN

General Info about Fabcoin:

• Mainnet event AMA
• Fabcoin's PoS vs CASPER
• Technical article explaining Fabcoin's PoS model in depth
• Unofficial What is Fabcoin article

• Smart contract deployment tool
  • https://github.com/blockchaingate/solar
• DApp JavaScript Library
  • https://github.com/blockchaingate/fabcoinjs
• A toolkit for building fabcoin light wallets
  • https://github.com/blockchaingate/fabcoinjs-wallet
• CORS fabcoind RPC proxy for DApp
  • https://github.com/blockchaingate/fabcoinportal
• Docker images for running fabcoin services
  • https://github.com/blockchaingate/fabcoin-docker
• HTTP API that powers the block explorer and the FABCOIN web wallet
  • https://github.com/blockchaingate/insight-api

Fabcoin Core is our primary mainnet wallet. It implements a full node and is capable of storing, validating, and distributing all history of the Fabcoin network. Fabcoin Core is considered the reference implementation for the Fabcoin network.

Fabcoin Core currently implements the following:

• Sending/Receiving Fabcoin
• Sending/Receiving QRC20 tokens on the Fabcoin network
• Staking and creating blocks for the Fabcoin network
• Creating and interacting with smart contracts
• Running a full node for distributing the blockchain to other users
• "Prune" mode, which minimizes disk usage
• Regtest mode, which enables developers to very quickly build their own private Fabcoin network for Dapp testing
• Compatibility with the Fabcoin Core set of RPC commands and APIs

Fabcoin Core uses a full node model, and thus requires downloading the entire blockchain. If you do not need the entire blockchain, and do not intend on developing smart contracts, it may be more ideal to use an alternative wallet such as one of our light wallets that can be synchronized in a matter of seconds.

A light wallet that supports the Ledger hardware wallet and is based on the well known Electrum wallet software.

Download: https://github.com/blockchaingate/fabcoin-electrum/releases

These wallets run on mobile devices and synchronize quickly.

Android Download: https://play.google.com/store/apps/details?id=org.fabcoin.wallet

iOS Download: https://github.com/blockchaingate/fabcoin-ios (open source, we are still working with Apple to get approval for their app store)

This light wallet runs in your Chrome browser as a browser extension. This wallet requires a Ledger device to use.

How to install: https://ledger.zendesk.com/hc/en-us/articles/115003776913-How-to-install-and-use-Fabcoin-with-Ledger

This is a quick start script for compiling Fabcoin on  Ubuntu


sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils git cmake libboost-all-dev
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:fabcoin/fabcoin
sudo apt-get update
sudo apt-get install libdb4.8-dev libdb4.8++-dev

# If you want to build the Qt GUI:
sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler qrencode

git clone https://github.com/blockchaingate/fabcoin --recursive
cd fabcoin

# Note autogen will prompt to install some more dependencies if needed
./autogen.sh
./configure 
make -j2

Here is a brief description for compiling Fabcoin on CentOS, for more details please refer to the specific document

# Compiling boost manually
sudo yum install python-devel bzip2-devel
git clone https://github.com/boostorg/boost.git
cd boost
git checkout boost-1.66.0
git submodule update --init --recursive
./bootstrap.sh --prefix=/usr --libdir=/usr/lib64
./b2 headers
sudo ./b2 -j4 install

# Installing Dependencies for Fabcoin
sudo yum install epel-release
sudo yum install libtool libdb4-cxx-devel openssl-devel libevent-devel

# If you want to build the Qt GUI:
sudo yum install qt5-qttools-devel protobuf-devel qrencode-devel

# Building Fabcoin
git clone --recursive https://github.com/blockchaingate/fabcoin.git
cd fabcoin
./autogen.sh
./configure
make -j4

The commands in this guide should be executed in a Terminal application. The built-in one is located in /Applications/Utilities/Terminal.app.

Install the OS X command line tools:

xcode-select --install

When the popup appears, click Install.

Then install Homebrew.

brew install cmake automake berkeley-db4 libtool boost --c++11 --without-single --without-static miniupnpc openssl pkg-config protobuf qt5 libevent imagemagick --with-librsvg qrencode

NOTE: Building with Qt4 is still supported, however, could result in a broken UI. Building with Qt5 is recommended.

1. Clone the fabcoin source code and cd into fabcoin

    git clone --recursive https://github.com/blockchaingate/fabcoin.git
    cd fabcoin
   

2. Build fabcoin-core:

   Configure and build the headless fabcoin binaries as well as the GUI (if Qt is found).

   You can disable the GUI build by passing --without-gui to configure.

   ./autogen.sh
   ./configure
   make
   

3. It is recommended to build and run the unit tests:

   make check
   

Then you can either run the command-line daemon using src/fabcoind and src/fabcoin-cli, or you can run the Qt GUI using src/qt/fabcoin-qt

For in-depth description of Sparknet and how to use Fabcoin for interacting with contracts, please see sparknet-guide.

Fabcoin is GPLv3 licensed.

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 Fabcoin.

The contribution workflow is described in CONTRIBUTING.md.

Developer IRC can be found on Freenode at #fabcoin-dev.

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

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.