Gridcoin

Gridcoin (ticker: GRC) is an open source cryptocurrency which securely rewards volunteer computing performed on the BOINC network, a distributed computing platform that is home to over 30 science projects spanning a range of scientific disciplines.

It was created on October 16, 2013 by Rob Halförd. Gridcoin, like Peercoin, uses a proof of stake protocol which attempts to address and ease the environmental impact of cryptocurrency mining, as compared to the proof of work system used by Bitcoin.

The implementation Gridcoin-Research was created as a fork of Bitcoin and Peercoin and is licensed under the MIT License. It uses Qt 5 for its user interface and prebuilt executables of the wallet are distributed for Windows, MacOS, and Debian.