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What Is Proof-of-Stake and How Does It Differ from Proof-of-Work?

PoS selects validators based on staked crypto, offering better energy efficiency than PoW, which relies on competitive computational power.
Greeks.Live08.11.25

What Is Proof-of-Stake and How Does It Differ from Proof-of-Work?

Proof-of-Work (PoW) requires miners to expend significant computational power to solve complex mathematical problems to validate transactions and create new blocks. Proof-of-Stake (PoS) requires validators to stake or lock up their own cryptocurrency as collateral to be chosen to validate blocks.

PoS is generally considered more energy-efficient and scalable than PoW. PoS achieves consensus based on ownership stake rather than computational work.

What Are the Security Trade-Offs between PoW’S Energy Expenditure and PoS’s Capital-Locking?
What Is “Slashing” in a Proof-of-Stake System?
How Does the Capital Efficiency of PoS Compare to the Energy Efficiency of PoW?
How Does the ‘Economic Security’ of PoS Compare to PoW?

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