{
  "example_status": "illustrative_schema_not_a_collection",
  "speaker_id": "Pseudonymous project identifier; mapping held separately if applicable",
  "age_band": "Optional, self-reported band with explicit not_provided value",
  "age_basis": [
    "self_reported",
    "not_provided",
    "withheld"
  ],
  "gender": "Optional source-reported description; never infer from voice",
  "language_locale": "Language and locale convention agreed for the project",
  "source_session_group": "Group related recordings before splitting",
  "usable_seconds": "Accepted audio duration under a stated inclusion rule",
  "permission_reference": "Reference to review evidence, not the private evidence itself"
}