Qtum

Qtum is an open-source, decentralized Layer 1 blockchain designed to support smart contracts and decentralized applications, targeting developers and businesses that want programmable transaction logic. It attempts to address a perceived gap between Bitcoin's proven, stable transaction model and Ethereum's flexible smart-contract capabilities by combining elements of both into a single hybrid network. The QTUM token is the native asset used to pay for computation and to participate in network validation.

Qtum is built on a fork of Bitcoin Core, inheriting its UTXO-based transaction structure, but adds an account abstraction layer that allows Ethereum-compatible smart contracts to run on top of it. The network reaches agreement through Proof of Stake consensus, meaning holders who run nodes stake their QTUM tokens to validate new blocks roughly every 2 minutes and receive block rewards in return. Governance of certain network parameters is handled on-chain through a Decentralized Governance Protocol, allowing community participants to vote on changes without requiring a hard fork.

The data provided does not include a recorded protocol fee stream, so fee-based measures such as revenue or fee yields are not available on this page. Block rewards are distributed to staking node operators for validating transactions, but the size or structure of those rewards is not captured in the stored metrics. With approximately 98.4% of supply already in circulation at the point in time recorded, and a fully diluted value only 1.6% above the current market cap, there is very little remaining token issuance that could affect existing holders through dilution.