Adopted doctrine

Defined term

Effective At

The timestamp when a business fact became true.

Reviewed: July 2026
Current state: Effective timestamps exist in selected lifecycle and history records.

Owning boundary: Applicable canonical module
Not equivalent to: Recorded At · Created At
Verified identifiers: effectiveAt · activationEffectiveAt

Effective At is when the business fact became true. Historical backfills may have an Effective At earlier than the time Kernel recorded them.