Arnak is an implementation of the "Zerocash" protocol. Based on Bitcoin's code, Arnak intends to offer a far higher standard of privacy through a sophisticated zero-knowledge proving scheme that preserves confidentiality of transaction metadata. More technical details are available in our Protocol Specification.

This software is the Arnak client. It downloads and stores the entire history of Arnak 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.

See important security warnings on the Security Information page.

Arnak is experimental and a work in progress. Use it 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 period. The automatic feature is based on block height.

Please see our user guide for joining the main Arnak network.

• 📘 See the documentation at the ReadtheDocs for help and more information.
• 📨 Ask for help on the Arnak forum.
• 🔍 Chat with our support community on Rocket.Chat

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

Build Arnak along with most dependencies from source by running the following command:

./zcutil/build.sh -j$(nproc)

Currently, Arnak is only officially supported on Debian and Ubuntu.

For license information see the file COPYING.