The engine was changed mid-flight! September 15 2022 — the day Ethereum switched to Proof-of-Stake. That new engine is the Beacon Chain. Do you feel it’s time to know a bit how it works? Ethereum’s Beacon Chain will be illustrated with examples at the right level to make you proficient and save time. Slots and Epochs The Beacon Chain provides the heartbeat to Ethereum’s consensus. Each slot is 12