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Grin

Grin is a public GitHub repository containing a Rust implementation of the Mimblewimble protocol and a live mainnet blockchain.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Grin — OpenViST project profile in Layer 1.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Grin when the work involves studying, building or operating an open-source Mimblewimble proof-of-work blockchain implementation.

Who it is for

  • Blockchain developers
  • Mimblewimble researchers
  • Grin node and mining operators
  • Developers building wallets or transaction-analysis tools

Documented uses

  • Explore Mimblewimble blockchain design.
  • Build and operate Grin mainnet infrastructure.
  • Develop wallet and transaction tooling around Grin flows.
  • Research proof-of-work networks and hidden-amount transactions.
Before you choose

Requirements & limits

The repository is public and licensed under Apache License 2.0. The cited material documents Linux, Windows and macOS support contexts, including CLI, server and self-hosted use.

  • Rust is the primary implementation language.
  • The protocol uses hidden amounts and Mimblewimble transaction design.
  • The chain uses Cuckoo Cycle proof of work in Cuckaroo and Cuckatoo variants.
  • The target block time is one minute.
  • Transaction fees depend on outputs created or destroyed and transaction size.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Build and try Grin from its repository

Learn the Mimblewimble technology and build Grin using the project’s documented starting points.

Before you start

  • Access to the Grin GitHub repository.
  • The project’s introduction and build documentation.

Steps

  1. Read the project’s introduction to Mimblewimble and Grin.

  2. Follow the repository’s build documentation to build and try Grin.

  3. Consult the contributing documentation if you intend to participate in development.

Expected outcome

A documented path from understanding the protocol to building and trying the implementation.

Guide limitations

  • The repository describes Grin as an in-progress implementation, with some characteristics still undefined.
  • The cited material does not document specific commands, operating-system steps or a completed build result.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
1 October 2026
Original website title
mimblewimble/grin · Official homepage title · retained in its source language
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