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EIP-3675 Upgrade consensus to Proof-of-Stake

FinalCorecreated 2021-07-222 later proposals build on itrequires EIP-2124

Specification of the consensus mechanism upgrade on Ethereum Mainnet that introduces Proof-of-Stake

Authors: Mikhail Kalinin (@mkalinin), Danny Ryan (@djrtwo), Vitalik Buterin (@vbuterin)

Depends on (1)

Proposals this one names in its requires field.

EIP-2124Fork identifier for chain compatibility checks

Built on by (2)

Later proposals that name this one in their requires field.

EIP-4399Supplant DIFFICULTY opcode with PREVRANDAOEIP-6953Network Upgrade Activation Triggers

What the specification covers

AbstractMotivationSpecificationDefinitionsPoS eventsClient software configurationPoW block processingConstantsBlock structureBlock validityTransition block validityBlock and ommer rewardsFork choice ruleNetworkFork identifierdevp2pRationaleTotal difficulty triggering the upgradeParameterizing terminal block hashHalting the import of PoW blocksReplacing block fields with constantsReplacing difficulty with 0Changing block validity rulesRemoving block rewardsSupplanting fork choice ruleRemove of POS_CONSENSUS_VALIDATEDEIP-2124 fork identifierRemoving block gossipRestricting the length of extraDataBackwards CompatibilityEVMDIFFICULTYBLOCKHASHTest CasesSecurity ConsiderationsBeacon chainTransition processTerminal total difficulty vs block numberAbility to jump between terminal PoW blocksHalt the importing of PoW blocksTerminal PoW block overridingAncient blocks are no longer a requisite for a network securityCopyright

This proposal declares no Solidity interface, so there is nothing to compute. It may be a core protocol change, a meta proposal, or written in prose only.

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