Sequencer
Infrastructure
Orders transactions in rollups.
A sequencer orders and batches transactions for a rollup. Centralized sequencers are fast but come with liveness and censorship tradeoffs. Research explores shared or decentralized options.
Frequently asked questions
Why do rollups use sequencers?
To order and batch transactions quickly. They help provide a smooth user experience.Can sequencers censor?
Centralized sequencers can delay or skip transactions. Decentralized designs aim to reduce this risk.How does this affect withdrawals?
Withdraw timing depends on posting and proofs. Check your rollup’s docs for expected delays.