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Qtum

Qtum is a proof-of-stake Layer 1 blockchain that uses Bitcoin-style UTXO transaction accounting and supports EVM smart contracts through an Account Abstraction Layer. Qtum Core is its reference full-node wallet for transfers, staking, contract activity, and blockchain distribution.

Independent OpenViST project profile, based on linked sources.

Qtum — 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 Qtum when a project needs EVM smart-contract support alongside UTXO-based transactions, or when you need Qtum Core’s full-node, transfer, staking, or contract functions. Use testnet or regtest for software testing rather than mainnet.

Who it is for

  • Developers adapting Solidity-based smart contracts for a UTXO-based blockchain.
  • Users who want to operate a Qtum full node and manage QTUM or QRC20 tokens.
  • People testing dApps on Qtum testnet or a private regtest network.

Documented uses

  • Send and receive QTUM or QRC20 tokens with Qtum Core.
  • Create and interact with EVM-compatible smart contracts.
  • Stake and create blocks on the Qtum network.
  • Run a full node that validates and distributes blockchain history.
  • Test dApps using public testnet or a private regtest network.
Before you choose

Requirements & limits

The documented Qtum Core platforms are Linux, Windows, and macOS. Running Core requires downloading the blockchain; prune mode can reduce disk use.

  • Qtum Core uses a full-node model and downloads the blockchain; the repository points users who do not need a full node or contract development toward light-wallet alternatives.
  • The repository labels Qtum Core beta software and disclaims security and stability guarantees.
  • The project supports many existing Solidity-based contracts without requiring a special Solidity compiler.
  • The repository lists the project under the MIT license.

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

Choose and install a Qtum wallet

Select a Qtum wallet based on whether you need a full node or a light-wallet option, then obtain it from the listed download source.

Before you start

  • A supported desktop platform (Mac, Windows 64-bit, or Linux) for Qtum Core or Qtum Electrum.
  • For Qtum Core, be prepared to download the entire blockchain; it installs qtum-qt and qtumd.

Steps

  1. Decide whether you need Qtum Core's full-node functions or prefer Qtum Electrum, a light wallet.

  2. Open the Qtum wallets download page and choose the listed wallet and platform.

  3. Download and install the selected wallet using the available download option.

Expected outcome

The selected Qtum wallet is installed; Qtum Core provides a full node, while Qtum Electrum is described as a light wallet.

Guide limitations

  • Qtum Core is described in the repository README as beta software, without security or stability guarantees.
  • Qtum Core's full-node model requires downloading the entire blockchain.
  • The source does not provide platform-specific installation instructions.
Evidence and transparency

Sources & review

Source record details
Source availability
Active
Sources checked
9 October 2026
Original website title
qtumproject/qtum · Official homepage title · retained in its source language

Related options

Qtum Web Wallet — A browser wallet described by the Qtum repository as an alternative to Core’s full-node model, with Ledger support and features including QRC20 token and QRC1155 NFT creation.

Qtum Electrum — A light-wallet alternative described by the Qtum repository as supporting Ledger and Trezor hardware wallets.