How it works
Optimistic rollups rely on challenge periods, while zero-knowledge rollups use validity proofs. Both reduce the amount of base-layer work required per transaction.
What to check
Check data availability, proof system, withdrawal timing and upgrade controls. The word rollup alone does not specify the entire security model.
- Identify rollup type
- Check data availability
- Understand withdrawal and upgrade rules
Limits and risks
Users can face bridge, sequencer and contract risk even if the rollup ultimately settles to a secure base layer.
Primary sources
Bitcoin Developer Reference↗Ethereum developer documentation↗FATF: Virtual Assets↗General information only. Investment products can lose value, and terms, fees and regulation can change.