Definition
Sequencer
A sequencer is infrastructure that orders transactions for many rollup-based L2 networks before they are finalized or posted elsewhere.
Why it matters
This term matters because wallet setup, RPC configuration, and chain selection can affect where transactions are signed and submitted. A familiar label is not enough: users and developers should verify exact network values against source documentation before moving funds or deploying production systems.
On Main.net, glossary pages are intentionally connected to source-cited status pages, guides, gas-token pages, explorer pages, and machine-readable datasets. Use the definition to understand the concept, then follow the related guide when you need the operational checklist or the current reviewed chain records.
Common verification habit
Before copying a setting from any reference site, compare the term in context with the official project documentation: chain ID with chain ID, RPC URL with RPC URL, gas token with gas token, and explorer host with explorer host. If one value is stale or inconsistent, stop and use the source documentation as the deciding reference.