Block Builder Centralization

Mechanism

Block builder centralization refers to the consolidation of transaction ordering power within a restricted subset of specialized entities in a blockchain network. This phenomenon frequently emerges in proof-of-stake systems where economies of scale drive the professionalization of block construction, favoring actors with significant capital and technical infrastructure. By aggregating order flow and optimizing for maximal extractable value, these entities exert disproportionate influence over the chronological sequencing of financial derivatives and trade execution on-chain.