Qtum

Qtum is a Layer 1 blockchain that attempts to combine the transaction model of Bitcoin with the smart-contract capabilities of Ethereum, giving developers a platform on which to build decentralized applications and transfer value. It targets developers and businesses that want Ethereum-style programmability built on top of Bitcoin's more battle-tested transaction infrastructure. The project is open-source and governed by community participants who can vote to adjust certain network parameters.

Qtum uses a Proof of Stake consensus mechanism, meaning that node operators who hold QTUM tokens can validate transactions and earn block rewards in return, with a new block produced roughly every 2 minutes. The chain is built on a fork of Bitcoin Core and uses Bitcoin's UTXO model at the base layer, while an abstraction layer on top allows Ethereum-compatible smart contracts to execute. QTUM is the native token used to pay transaction fees, participate in staking, and vote on governance proposals through a system called the Decentralized Governance Protocol.

The data stored here does not include a discrete fee-revenue figure for Qtum, so fee-based valuation measures cannot be calculated from this page. Staking rewards are the primary economic incentive for node operators, funded through block issuance rather than a separately tracked fee stream. The circulating supply stands at roughly 106.1 million QTUM, representing about 98.4 percent of all coins issued to date, with a dilution overhang of approximately 1.6 percent of remaining supply still to be released. Because no maximum supply is recorded, the long-run issuance schedule cannot be bounded from the figures available here.