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  3. /Proposer-Builder Separation (PBS)
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blockchain

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.

Definition

An Ethereum design change that separates the roles of building blocks (choosing which transactions to include) and proposing them to the network. This prevents validators from having to become MEV extraction experts. Currently implemented through MEV-Boost, with plans to enshrine it directly into the Ethereum protocol.

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Related Terms

MEV-Boost

An open-source middleware that lets Ethereum validators outsource block building to specialized builders who compete to create the most profitable blocks.

Validator

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

MEV (Maximal Extractable Value)

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

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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