Glossary

Arbitrage#

A trade or cycle of trades that uses a price difference between markets to produce a surplus. In this builder, predicted surplus must survive funding costs, exact execution, gas, and final-block placement.

Backrun#

A transaction placed after a target transaction to act on the state it leaves behind. An ethical user backrun does not move ahead of that user or sandwich their trade.

Ordinary baseline#

The regular block built for the same slot without the proposed MEV capture. It supplies the validator value against which added earnings are compared.

Builder#

A service that assembles and verifies an execution block and offers a payment for a validator to propose it.

Canonical inclusion#

A transaction or payload appearing in the current chain. Check block identity and transaction receipts; an accepted request or simulated candidate is not canonical inclusion.

Flash funding#

Capital borrowed and repaid within one transaction. The route needs a compatible lender and sufficient liquidity, and repayment principal is not counted as profit.

MEV#

Value obtainable through the composition and ordering of a block. BlockFerret pursues supported ethical captures and shares the verified net increment after costs.

Portfolio#

A block candidate containing several opportunities. They must work together at their actual execution positions, preserve required public outcomes, and pass complete-block accounting.

Priority fee#

The transaction’s effective tip above the network base fee. It contributes to the validator’s ordinary reward. The base fee is burned.

Proposer#

The validator assigned to propose a block for a particular slot.

Relay#

The intermediary that receives builder bids and provides a selected block to a connected validator. BlockFerret uses the Vouch relay.

Slot#

A scheduled opportunity for a validator to propose a block. A proposer duty and execution block number are different identifiers.

Learned route watchlist#

A bounded collection of swap topologies learned from canonical transactions. Watch membership is discovery guidance, not permission to execute without fresh verification.