Awesome Open Source
Awesome Open Source


UC Project

UChain is the first public infrastructure blockchain specifically designed for the global sharing economy. Along with other sharing economy enterprises, UChain aims to build its underlying blockchain network to solve the current problems of trust and data abuse. Exercising API's and SDK's provided by UChain , all sharing economy enterprises are able to issue their own token and build their application on top of the UChain network, together making UChain a better global autonomous sharing economy ecosystem.
UC is implemented based on libbitcoin project and ICE project.Also ZeroMQ,secp256k1,miniupnpc and boost are necessary.

UC Achitect


Build UC

Compiler requirements

Compilier Minimum Version
gcc/g++ 5.0
clang++ 3.4 (8.0.0)

C++ compiler support C++14. Using c++ -v to check c++ version.

Dependencies of UC are static linked (including libstdc++). Thus, there is no extra dependency after compilation. Recommends Ubuntu 16.04/CentOS 7.2/MinGW to develop/debug/build UC.

Toolchain requirements

  • cmake 3.0+
  • git
  • automake (speck256k1/ZeroMQ required)
  • make (MinGW for Windows is supported)
$ yum/brew/apt-get install git cmake
$ yum/brew/apt-get install autoconf automake libtool pkg-config

Library Dependencies

Needs to configure Library Dependencies firstly. Installing by bash script (sudo required).

$ chmod +x ./install_thirdlibrary
$ sudo ./install_thirdlibrary

By default, ./install_thirdlibrary will install ZeroMQ secp256k1.
You can install more by specify arguments, for example:

# --build-upnpc is needed is you want UPnP supporting.
$ sudo ./install_thirdlibrary --build-boost --build-upnpc

boost 1.60(boost is required and 1.60 is recommended)

$ sudo yum/brew/apt-get install libboost-all-dev

ZeroMQ 4.2.5+(required)

Modules server/explorer required.

$ wget
$ tar -xzvf zeromq-4.2.5.tar.gz
$ cd zeromq-4.2.5
$ ./
$ ./configure
$ make
$ sudo make install && sudo ldconfig


Modules blockchain/database required.

$ git clone
$ cd secp256k1
$ ./
$ ./configure --enable-module-recovery
$ make
$ sudo make install && sudo ldconfig

miniupnpc(if needed)

Modules blockchain/network with UPnP function required.

$ wget
$ tar -xzvf miniupnpc-2.0.tar.gz
$ cd miniupnpc-2.0
$ make
$ sudo INSTALLPREFIX=/usr/local make install && sudo ldconfig

Build UC

$ git clone
$ cd UChain && mkdir build && cd build
$ cmake ..
$ make
$ make install

If you do not need UPnP support, you can use "cmake -DUSE_UPNP=OFF .." to disable it.
And "make -j4" may be better (-j4 is not always the rigth parameter... could be j2 or j8 it depends by the cpu).
Also "make install-strip" may be better(it strips).

Run UC

After UC is built successfully, there are two executable files in the bin directory:

  • ucd - server program
    Runs a full UChain node in the global peer-to-peer network.

  • uc-cli - client program
    Sent your request to the server, the server will process it and return response to your client.

Go to bin diretory, and run the program. More information please reference to Command line usage.

$ cd bin
$ ./ucd
$ ./uc-cli $command $params $options

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