Gemlink(http://gemlink.org/) is an implementation of the "Zerocash" protocol. Based on Bitcoin's code, it intends to offer a far higher standard of privacy through a sophisticated zero-knowledge proving scheme that preserves confidentiality of transaction metadata. Technical details are available in our Protocol Specification.

This software is the Gemlink client. It downloads and stores the entire history of Gemlink transactions; depending on the speed of your computer and network connection, the synchronization process could take a day or more once the blockchain has reached a significant size.

Gemlink is experimental and a work-in-progress. Use at your own risk.

This release is considered deprecated 16 weeks after the release day. There is an automatic deprecation shutdown feature which will halt the node some time after this 16 week time period. The automatic feature is based on block height and can be explicitly disabled.

On Ubuntu/Debian-based systems:

On Ubuntu 20.04:

$ sudo apt-get install \
 build-essential pkg-config libc6-dev m4 g++-multilib \
 autoconf libtool ncurses-dev unzip git python3 python3-zmq \
 zlib1g-dev curl bsdmainutils automake libtinfo5

On Fedora-based systems:

$ sudo dnf install \
      git pkgconfig automake autoconf ncurses-devel python \
      python-zmq wget gtest-devel gcc gcc-c++ libtool patch curl

Windows:

sudo apt-get install \
    build-essential pkg-config libc6-dev m4 \
    autoconf libtool ncurses-dev unzip git python \
    zlib1g-dev wget bsdmainutils automake mingw-w64

On Mac systems:

brew tap discoteq/discoteq; brew install flock
brew install autoconf autogen automake
brew install gcc5
brew install binutils
brew install protobuf
brew install coreutils
brew install wget llvm

gcc/g++ 9 or later is required. Gemlink has been successfully built using gcc/g++ versions 9 inclusive. Use g++ --version to check which version you have.

On Ubuntu Trusty, if your version is too old then you can install gcc/g++ 4.9 as follows:

$ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
$ sudo apt-get update
sudo apt install gcc-9 g++-9

Fetch our repository with git and run fetch-params.sh like so:

$ ./zcutil/fetch-params.sh

Ensure you have successfully installed all system package dependencies as described above. Then run the build, e.g.:

$ git clone https://github.com/gemlink/gemlink.git
$ cd gemlink/
$ ./zcutil/build.sh

This should compile our dependencies and build gemlinkd

With docker:

docker run -ti electriccoinco/zcashd-build-ubuntu2004 bash
apt install zstd
git clone https://github.com/gemlink/gemlink.git
cd gemlink
HOST=x86_64-w64-mingw32 ./zcutil/build.sh

Ensure you have successfully installed all system package dependencies as described above. Then run the build, e.g.:

$ git clone https://github.com/gemlink/gemlink.git
$ cd Gemlink/
HOST=x86_64-w64-mingw32 ./zcutil/build.sh

• See the documentation at the refer from Zcash Wiki for help and more information.
• Ask for help on the Gemlink forum or contact us via email [email protected]

Participation in the Gemlink project is subject to a Code of Conduct.

For license information see the file COPYING.