{
  "version": "1.0",
  "generated": "2026-08-26T21:39:03.044Z",
  "principle": "Unknown stays UNKNOWN until verified at the source. No fabrication.",
  "presentAtCanonicalLevel": [
    "apple_music_artist_id",
    "spotify_artist_id"
  ],
  "gaps": [
    {
      "identifierType": "internal_persistent_id",
      "family": "internal",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "canonical_uri",
      "family": "web",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "domain_name",
      "family": "web",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "isni",
      "family": "authority",
      "state": "DECLARED_UNKNOWN",
      "acquisitionPath": "Via VIAF/authority-file reconciliation after independent bibliographic presence"
    },
    {
      "identifierType": "orcid",
      "family": "authority",
      "state": "DECLARED_UNKNOWN",
      "acquisitionPath": "Only if individual humans affiliated with OYOTTA register contributions"
    },
    {
      "identifierType": "viaf_id",
      "family": "authority",
      "state": "NOT_PRESENT",
      "acquisitionPath": "Derived from authority clusters once library presence exists"
    },
    {
      "identifierType": "isrc",
      "family": "music",
      "state": "NOT_PRESENT",
      "acquisitionPath": "Per-recording codes issued via distributor/agencies during release registration"
    },
    {
      "identifierType": "upc_ean",
      "family": "music",
      "state": "NOT_PRESENT",
      "acquisitionPath": "Assigned per release via distributor GS1 registration"
    },
    {
      "identifierType": "iswc",
      "family": "music",
      "state": "NOT_PRESENT",
      "acquisitionPath": "Issued by ISWC agency via work registration with a collective management org"
    },
    {
      "identifierType": "isbn13",
      "family": "publishing",
      "state": "NOT_PRESENT",
      "acquisitionPath": "Only relevant if/when book-format works are published"
    },
    {
      "identifierType": "doi",
      "family": "publishing",
      "state": "NOT_PRESENT",
      "acquisitionPath": "Only for scholarly/dataset registration via a DOI agency"
    },
    {
      "identifierType": "musicbrainz_artist_id",
      "family": "music_kb",
      "state": "DECLARED_UNKNOWN",
      "acquisitionPath": "Assigned on MB artist creation/edit — see candidates/musicbrainz.json"
    },
    {
      "identifierType": "musicbrainz_release_id",
      "family": "music_kb",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "musicbrainz_recording_id",
      "family": "music_kb",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "wikidata_qid",
      "family": "knowledge",
      "state": "DECLARED_UNKNOWN",
      "acquisitionPath": "Created by human editors after notability review — see candidates/wikidata.json"
    },
    {
      "identifierType": "apple_music_collection_id",
      "family": "platform",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "spotify_album_id",
      "family": "platform",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "youtube_video_id",
      "family": "platform",
      "state": "NOT_PRESENT",
      "acquisitionPath": null
    },
    {
      "identifierType": "youtube_channel_id",
      "family": "platform",
      "state": "DECLARED_UNKNOWN",
      "acquisitionPath": "Visible on channel About page / handle resolution when channel is inspected"
    }
  ],
  "gapCount": 19
}