developer · AVC

State changes become durable facts.

Mission, approval, evidence, incident and product transitions retain identity and time.

Event envelope

A durable event answers who, what, when and why.

The envelope supports replay while preserving data and authority boundaries.

Event ID: Unique identity for the immutable observation.Deduplication and audit
Schema version: Version of the serialized event contract.Compatibility
Actor: The attributable subject or service that emitted the event.Identity
Correlation: Groups events belonging to the same mission or incident.Related work
Causation: Links an event to the event or command that caused it.Transition explanation
Payload hash: Integrity reference for the serialized payload.Evidence

Append-only observation

Each envelope carries identity, schema version, time, actor, correlation, causation and a payload hash.

Causal graph

These identifiers support replay and incident analysis without becoming authorization tokens.

Data boundary

Payloads follow classification and minimization rules so observability does not become a secondary credential store.