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PBS

Proposer-Builder Separation.

Definition

Proposer-Builder Separation. A design where the roles of building blocks (selecting and ordering transactions) and proposing blocks (adding them to the chain) are split between different actors. This aims to reduce centralization from MEV and ensure validators don't need specialized hardware to remain competitive.

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Related Terms

Proposer-Builder Separation (PBS)

An Ethereum design change that separates the roles of building blocks (choosing which transactions to include) and proposing them to the network.

MEV (Maximal Extractable Value)

Profit that block producers can extract by reordering, inserting, or censoring transactions.

Validator

A node operator who validates transactions and creates blocks on a proof-of-stake network.

ABI

Application Binary Interface.

Account Abstraction

A way to make crypto wallets behave more like normal apps by turning every account into a smart contract.

ERC-4337

The Ethereum standard for account abstraction without changing the core protocol.

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