Qubic is a decentralized, open-source Layer‑1 blockchain platform that merges smart contract execution, feeless transactions, and decentralized AI computing. Created by Sergey Ivancheglo, one of the original minds behind NXT and IOTA, Qubic introduces a novel consensus model called Quorum-Based Computation (QBC). This mechanism leverages 676 validator nodes, referred to as Computors, which must reach over 66% consensus to validate each block, ensuring both security and instant finality.
Qubic uses a distinctive mining model known as Useful Proof-of-Work (UPoW). Unlike traditional mining that consumes energy for solving meaningless puzzles, UPoW directs computational power toward AI model training, forming the foundation of Qubic’s decentralized AI system called Aigarth. This not only maintains network integrity but also contributes to valuable AI advancements.
Smart contracts on Qubic are written in C++ and operate on bare-metal infrastructure, offering true Turing completeness and high-speed execution. Contracts undergo community quorum voting for approval and are launched through IPO-like mechanisms. Investors purchase shares that fund the execution, and in return, they receive passive income. This model introduces a self-regulating economic incentive and decreases token circulation.
Qubic stands out with its zero transaction fees and rapid block times—currently around 7 seconds, with plans to achieve sub-second confirmations. Its architecture supports decentralized oracles, enabling smart contracts to access real-world data, making it ideal for complex and dynamic use cases.
Additional ecosystem components include grant programs, community incubation initiatives, a staking platform called Qearn, and a treasury governed by token holders. With its focus on transparency, AI integration, and efficient on-chain governance, Qubic presents a compelling alternative to conventional blockchain networks, especially for applications requiring high-speed computation and real-world connectivity.
