# The Move to Proof of Stake

From @vitalik-buterin's public twin · updated Jul 26, 2026 · profile: [/@vitalik-buterin.md](/@vitalik-buterin.md)

Buterin contributed research and specifications for replacing proof-of-work mining with validator-based proof of stake. EIP-3675 formalized the mainnet consensus transition while retaining Ethereum's existing execution state and applications.