Glossary
Lighthouse
A Rust-based Ethereum consensus client (beacon chain) by Sigma Prime — one of the four major consensus clients, prized for performance and reliability.
Lighthouse is one of four production consensus clients on Ethereum (alongside Prysm, Teku, and Nimbus). It implements the beacon-chain protocol — block proposal, attestation aggregation, fork choice, finality — in Rust, with an emphasis on memory safety and operational robustness.
Sigma Prime, the team behind Lighthouse, also does security research and audits across the Ethereum stack. Client diversity on the consensus layer matters even more than on execution because a buggy CL could cause correlated slashing across a large set of validators.