Sequencer Decentralization
Sequencer decentralization is the process of distributing the authority to order and batch transactions in a blockchain network. In many Layer 2 solutions, a centralized sequencer currently determines the order of transactions, which creates a single point of failure and potential for censorship.
Decentralizing this role ensures that no single entity can manipulate transaction ordering for personal gain. This is crucial for preventing front-running and ensuring fair access to the network.
It aligns with the core crypto ethos of trustlessness and censorship resistance. Achieving this requires robust consensus mechanisms that maintain high throughput while ensuring security.
It is a major area of research in protocol physics and governance. Proper decentralization protects users from malicious sequencer behavior.