# Consensys/quorum

A permissioned implementation of Ethereum supporting data privacy

Repository: https://github.com/Consensys/quorum
Canonical: https://ross.abutalabs.com/products/quorum
Homepage: https://www.goquorum.com/
Language: Go
License: LGPL-3.0
License Family: copyleft
Topics: blockchain, ledger, privacy, ethereum, consensus, go, protocols-team-goquorum, goquorum, quorum, eea, enterprise-ethereum, enterprise-ethereum-client
Archived: true
Last push: 2026-06-05T02:27:13+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 85, release rhythm 8, longevity 100
- inputs: {"age_days": 3579, "days_push": 90, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4765, forks 1298 (observed 2026-08-28T04:08:59.178161+00:00)

## What it is
GoQuorum is a permissioned implementation of Ethereum built as a fork of go-ethereum, adding transaction and contract privacy plus alternative consensus mechanisms like QBFT, IBFT, Clique POA, and Raft. It is designed for enterprise consortium networks with peer permissioning and a pluggable architecture.

## Use cases
- run a permissioned ethereum consortium network
- private transactions between known participants
- enterprise blockchain with qbft consensus
- permissioned ledger with node permissioning
- private smart contracts with public/private state separation
- pluggable account management with external vaults

## When to choose
- you must maintain an existing GoQuorum-based consortium network
- you need a historical reference implementation of permissioned Ethereum with privacy

## When to avoid
- starting a new project - the repository is archived and no longer maintained by Consensys
- you need an actively supported permissioned Ethereum client (consider Hyperledger Besu instead)
- you need a public permissionless blockchain

## Facets
- artifact type: application
- maturity: abandoned
- function: blockchain, privacy, security, networking, plugin-system
- domain: blockchain, privacy, microservices, erp
- platform: windows, go
- tags: ethereum, goquorum, permissioned-ledger, consortium, qbft, ibft, enterprise-ethereum, archived, linux, macos, docker

## Member repositories
- Consensys/quorum (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:59.178161+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:18:50.621453+00:00, confidence not recorded.
  - readme: https://github.com/Consensys/quorum (fetched 2026-08-28T04:08:59.178161+00:00, sha c025e3bf583c)
- Data as of 2026-08-30T08:39:29.467469+00:00.