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Author: Admin | 2025-04-27
Crypto-economic security than proof-of-workUsers need to run three pieces of software to participate in Ethereum's proof-of-stake.Less issuance of new ETH is required to incentivize network participantsComparison to proof-of-workEthereum originally used proof-of-work but switched to proof-of-stake in September 2022. PoS offers several advantages over PoW, such as:better energy efficiency – there is no need to use lots of energy on proof-of-work computationslower barriers to entry, reduced hardware requirements – there is no need for elite hardware to stand a chance of creating new blocksreduced centralization risk – proof-of-stake should lead to more nodes securing the networkbecause of the low energy requirement less ETH issuance is required to incentivize participationeconomic penalties for misbehavior make 51% style attacks more costly for an attacker compared to proof-of-workthe community can resort to social recovery of an honest chain if a 51% attack were to overcome the crypto-economic defenses.Further readingProof of Stake FAQ(opens in a new tab) Vitalik ButerinWhat is Proof of Stake(opens in a new tab) ConsenSysWhat Proof of Stake Is And Why It Matters(opens in a new tab) Vitalik ButerinWhy Proof of Stake (Nov 2020)(opens in a new tab) Vitalik ButerinProof of Stake: How I Learned to Love Weak Subjectivity(opens in a new tab) Vitalik ButerinProof-of-stake Ethereum attack and defense(opens in a new tab)A Proof of Stake Design Philosophy(opens in a new tab) Vitalik ButerinVideo: Vitalik buterin explains proof-of-stake to Lex Fridman(opens in a new tab)Proof-of-workProof-of-authority
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