Receipt boundary
The service proof must bind sender, destination, content digest, event class, timestamp, and current service key or seal.
Created, accepted, dispatched, delivered, acknowledged, and expired timestamps must remain separate and monotonic.
A transport delivery event does not establish acknowledgment by a competent recipient or any substantive response.
Illustrative delivery-service class only. No service was contacted and no message was transmitted, delivered, acknowledged, answered, recognized, endorsed, or given legal effect.
Authority and record status
Responsible authority: External Relations Records Office.
No actual receipt or delivery is claimed.
Revision date: . Public corrections may be initiated through the diplomatic contact route.