GuideCore DevelopmentL1 specificationsL1 specifications 1 min readConsensus layer Consensus specs Beacon APIs, also see interactive site Annotated specs by Vitalik Buterin Eth2 book: extended annotated specs with some eth2 history, by Ben Edgington Legacy (but good) resources: Proof Of Stake F.A.Q. Sharding F.A.Q. Ethereum sharding research compendium Execution layer Ethereum Improvement Proposals: EIPs Execution APIs New Execution py-specs PreviousNewsNext Communications