Lachesis aBFT: Fantom is a high-performance, scalable, customizable, and secure smart-contract platform. Fantom is permissionless, decentralized, and open-source.
Lachesis consensus algorithm: is asynchronous , leaderless, Byzantine Fault-Tolerant, to achieve instant transaction finality. The Fantom Opera mainnet has served more than 200M transactions with a daily growth of more than 1M transactions (source: ftmscan.com, updated: 24/Feb/2022). Check our papers and technical reports here.