# qtumproject/qtum

Qtum Core Wallet

Repository: https://github.com/qtumproject/qtum
Canonical: https://ross.abutalabs.com/products/qtum
Homepage: https://qtum.org
Language: C++
License: MIT
License Family: permissive
Topics: cryptocurrency, cryptography, c-plus-plus, p2p, ethereum, bitcoin, qtum
Last push: 2026-08-26T13:34:34+00:00

## Health v2 (maintenance only)
Score: 86/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 62, longevity 100
- inputs: {"age_days": 3470, "days_push": 7, "days_rel": 42, "gap_med": 312.5, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1212, forks 404 (observed 2026-08-28T04:04:00.281036+00:00)

## What it is
Qtum Core is the reference full-node wallet and daemon for the Qtum hybrid blockchain, which combines Bitcoin's UTXO model with Ethereum Virtual Machine smart contracts under proof-of-stake consensus. It ships as a GUI wallet (Qtum-Qt) and command-line tools (qtumd, qtum-cli) for running nodes, staking, and interacting with the network.

## Use cases
- run a full Qtum node to validate the blockchain
- store and send QTUM with a desktop wallet
- stake QTUM to help secure the network and earn rewards
- deploy and interact with Solidity smart contracts on Qtum
- use Bitcoin-style tooling and SPV workflows against a smart contract chain
- set up a testnet or regtest environment for dApp development

## When to choose
- you need to run or interact with the Qtum blockchain directly
- you want a self-custodied desktop wallet with staking support
- you're developing or testing smart contracts on Qtum's EVM
- you want Bitcoin-compatible UTXO tooling with EVM capabilities

## When to avoid
- you need a general-purpose Bitcoin or Ethereum client (use Bitcoin Core or Geth)
- you want a lightweight mobile-only wallet without running a node
- you need guaranteed production-grade stability (Qtum Core is labeled beta software)

## Facets
- artifact type: application
- maturity: active
- function: cryptography, networking, p2p, cli, gui
- domain: blockchain, developer-tools, self-hosted
- platform: windows, cpp, cross-platform
- tags: blockchain-node, wallet, proof-of-stake, evm, utxo, smart-contracts, bitcoin, ethereum, cryptocurrency, linux, macos

## Member repositories
- qtumproject/qtum (main) score 86

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:00.281036+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 2026-08-30T06:18:01.322764+00:00, confidence not recorded.
  - readme: https://github.com/qtumproject/qtum (fetched 2026-08-28T04:04:00.281036+00:00, sha 762c5cb8a8cc)
  - homepage: https://qtum.org (fetched 2026-08-29T12:25:48.511761+00:00, sha 8ee39f25f8f2)
  - site_page: https://qtum.org/about (fetched 2026-08-29T12:25:48.543433+00:00, sha 997c8b2d6f8f)
- Data as of 2026-08-30T08:39:29.467469+00:00.