Sequencing infrastructure refers to the underlying systems and processes responsible for ordering and transmitting transactions to be included in a blockchain block. In many Layer-2 solutions and some Layer-1 protocols, sequencers collect, order, and batch transactions before submitting them to the main chain for finalization. This infrastructure plays a crucial role in determining transaction inclusion, speed, and censorship resistance. Its design impacts network efficiency and fairness.
Context
Sequencing infrastructure is a key area of discussion in blockchain scalability and decentralization news, particularly concerning optimistic rollups and other Layer-2 technologies. Reports often analyze the role of centralized sequencers, their potential for censorship, and efforts to decentralize these components. The debate includes the implications for maximal extractable value (MEV) and the fairness of transaction ordering. Developments in this area aim to enhance network security and user experience.
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