How Does the “Bribe” Mechanism Work in MEV Extraction?

The bribe is the financial incentive paid by a searcher to the block builder/validator to ensure their transaction bundle is included in a block and, crucially, ordered in a specific way. This bribe is typically a portion of the MEV profit and is paid via the transaction's priority fee or an off-chain payment.

The block builder chooses the bundle that offers the highest bribe, maximizing their own profit.

What Is the Role of a ‘Block Builder’ in the Context of MEV Mitigation?
Does Sending a Transaction to a Private Mempool Guarantee Its Inclusion in the Next Block?
How Does the “Base Fee” and “Priority Fee” System Work under EIP-1559?
Explain How “Priority Fees” (Tips) Are Used in Modern Blockchain Fee Markets
What Is the Relationship between a Searcher and a Block Builder in the Post-Merge Ethereum Ecosystem?
How Does a Block Builder Prevent Self-Front-Running?
What Is the “Proposer-Builder Separation (PBS)” Model in PoS and How Does It Affect MEV?
What Is Proposer-Builder Separation (PBS) in Ethereum’s PoS?