How Does the Concept of ‘Proposer-Builder Separation’ (PBS) Relate to Flashbots?

PBS is a protocol-level design that formalizes the separation of block construction (building) from block selection (proposing). Flashbots was an early, centralized implementation of this idea, creating a private market for MEV bundles.

PBS is the decentralized, enshrined version that integrates the MEV auction directly into the blockchain's consensus mechanism.

What Are ‘MEV-Boost’ and ‘Proposer-Builder Separation (PBS)’?
How Can a “Logarithmic” Version of Metcalfe’s Law Be Used to Provide a More Conservative Valuation?
How Does a Proposer-Builder Separation (PBS) Architecture Aim to Solve This Issue?
What Is the Role of a ‘Relayer’ in the MEV Supply Chain?
How Is MEV Extraction Managed in Proof-of-Stake (PoS) Consensus Mechanisms?
What Is a ‘Builder’ and a ‘Proposer’ in the Context of MEV and Transaction Ordering?
How Does the “Proposer-Builder Separation” (PBS) Model Enhance Security?
How Does a Block Builder Prevent Self-Front-Running?

Glossar