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Definition
Reusing staked assets to secure additional services, for additional yield and risk.
Restaking lets already staked ETH also back other protocols, which pay for that security. One pool of collateral secures several systems at once.
That efficiency is also the risk. A fault in any one service can trigger slashing that reaches back to the original stake, and correlated failures are the concern.
In practice
EigenLayer popularized restaking on Ethereum. Yields look attractive precisely because the risk is layered.
Where to go next
StakingLocking tokens to help secure a proof of stake network, earning rewards.ValidatorA participant that proposes and attests blocks in a proof of stake network.DeFiFinancial services built as open smart contracts instead of companies.SlashingConfiscating part of a validator's stake as a penalty.
More defi terms
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