{
  "protocolVersion": "0.1",
  "eventId": "urn:uuid:00000000-0000-4000-8000-000000000002",
  "groupId": "urn:missionweaveprotocol:group:mission-one",
  "sequence": 42,
  "aggregateRevision": 5,
  "kind": "message.posted",
  "actor": {"type": "agent", "id": "urn:missionweaveprotocol:agent:coordinator"},
  "cause": {"type": "command", "id": "urn:uuid:00000000-0000-4000-8000-000000000001"},
  "correlationId": "urn:uuid:00000000-0000-4000-8000-000000000099",
  "conversationId": "urn:missionweaveprotocol:conversation:planning",
  "occurredAt": "2026-07-15T00:00:01Z",
  "payload": {"messageId": "urn:missionweaveprotocol:message:one", "authority": false},
  "acceptedBy": {"type": "service", "id": "urn:missionweaveprotocol:service:group-authority"},
  "commandHash": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "signature": {
    "algorithm": "Ed25519",
    "keyId": "urn:missionweaveprotocol:key:group-authority",
    "createdAt": "2026-07-15T00:00:01Z",
    "value": "c2lnbmF0dXJl"
  }
}