Data Availability

Data availability (DA) is a fundamental part of rollup correctness.

Why it matters

Even if execution is correct, verification requires access to the data needed to reconstruct and validate state transitions.

For Fluent, DA constraints influence:

• what transition artifacts must be committed,
• how verifiers can reconstruct state updates,
• how proving and execution pipelines stay auditably connected.

Architecture relationship

DA should be considered together with execution and proving design:

• execution defines what data is produced,
• proving defines what must be attested,
• DA defines what must remain accessible for independent validation.

Scope note

This chapter is intentionally high-level. For concrete DA pipeline implementation and current deployment settings, use current network/runtime documentation.