{
  "schema": "hux.multimodal_item.v1",
  "id": "mmi_0001aaaa",
  "owner": "usr_0123456789abcdef",
  "project_id": "prj_0001aaaa",
  "conversation_id": "conv_0001aaaa",
  "kind": "audio",
  "source": "voice",
  "filename": "utterance.webm",
  "mime": "audio/webm",
  "bytes": 12000,
  "hash": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "approval_id": "apr_0001aaaa",
  "status": "metadata_only",
  "created_at": "2026-08-24T12:00:00Z",
  "revision": 1
}