##The Blockchain Layer
IoTeX has built one of the fastest and most secure blockchains in the entire industry, currently managed by 60+ decentralized Delegates and powered by our in-house Roll-DPoS consensus mechanism. The IoTeX blockchain protocol is open-source, built from scratch, and tailor fit to support large-scale IoT scenarios.
Featuring a lightning-fast 5-second block time with instant finality of transactions, customizable subchains, solidity-compliant smartcontracts, and an advanced IoT tokenomics, the blockchain is the root of trust for the entire IoTeX Network. It is a state-of-the-art blockchain, ready for the masses.