ZuBerlin · Jun 13, 2024

Clip The video presents a discussion on the control over transaction order and inclusion within blockchain systems, comparing different mechanisms such as relays, gateways, and inclusion lists across layer 1 (L1) and layer 2 (L2) solutions. The speaker aims to clarify who ultimately has the "right lock," or authority to decide transaction order, in various blockchain architectures. They explore how the process of transaction ordering and block production is influenced by maximal extractable value (MEV) supply chains and how different entities within these chains can affect transaction inclusion. The talk covers the roles of users, proposers, attestors, sequencers, builders, searchers, and relays in transaction processing. The speaker argues that in many cases, high-value transactions tend to be controlled by entities with priority access to the system (such as L1 proposers or L2 sequencers), while lower-value transactions may be relegated to less prioritized paths. They also touch upon the potential for censorship resistance through inclusion lists and how their design can politically influence priority levels within a blockchain system. The summary of this complex ecosystem is illustrated with diagrams showing how similar structures are used across different systems to manage transaction flows. The conversation includes references to various proposals and discussions from the crypto community regarding MEV, pre