{
  "schemaVersion": "ready-scan.agent-evidence.v1",
  "protocolVersion": "ready-scan.agent-return.v1",
  "entity": {
    "id": "urn:readyscan:entity:national-gallery-of-art-q214867",
    "slug": "national-gallery-of-art-q214867",
    "name": "National Gallery of Art",
    "lifecycle": "active",
    "revision": "fnv1a64:42686b7f85725bf3"
  },
  "self": "https://readyscan.ai/api/v1/ai-search/entities/national-gallery-of-art-q214867/evidence",
  "evidenceRevision": "fnv1a64:3b5d74b1c0425c9a",
  "asOf": "2026-10-01",
  "ownershipState": "public_sourced_unclaimed",
  "provenance": {
    "snapshotId": "wikidata-rc-2621397995-b4533c9a57f7ed71",
    "sourceId": "wikidata",
    "sourceRecordId": "Q214867",
    "sourceRevisionId": "2026-09-07T10:50:37.000Z|2621397995",
    "sourceContentHash": "fnv1a64:e8e8a6b4d5ea30bc",
    "recordRevisionId": "2541643848",
    "recordContentHash": "fnv1a64:afc3d1159b014a5c",
    "sourceCanonicalUrl": "https://www.wikidata.org/wiki/Special:EntityData/Q214867.json?revision=2541643848",
    "sourceModifiedAt": "2026-09-07T10:49:36.000Z",
    "observedOn": "2026-10-01",
    "permission": {
      "basis": "cc0",
      "evidenceUrl": "https://www.wikidata.org/wiki/Wikidata:Licensing",
      "license": {
        "spdxId": "CC0-1.0",
        "name": "CC0 1.0 Universal",
        "url": "https://creativecommons.org/publicdomain/zero/1.0/"
      }
    },
    "attributionUrl": "https://www.wikidata.org/wiki/Help:Data_access"
  },
  "assertions": [
    {
      "evidenceId": "ev-source-description",
      "claimId": "source-description",
      "claimText": "National art museum in Washington, D.C.",
      "position": "supports",
      "sources": [
        {
          "sourceId": "source-record",
          "title": "National Gallery of Art — Wikidata Q214867",
          "publisher": "Wikidata",
          "url": "https://www.wikidata.org/wiki/Special:EntityData/Q214867.json?revision=2541643848",
          "accessedOn": "2026-10-01",
          "sourceRevision": "2541643848"
        }
      ]
    },
    {
      "evidenceId": "ev-source-listed-website",
      "claimId": "source-listed-website",
      "claimText": "www.nga.gov — https://www.nga.gov/",
      "position": "supports",
      "sources": [
        {
          "sourceId": "source-record",
          "title": "National Gallery of Art — Wikidata Q214867",
          "publisher": "Wikidata",
          "url": "https://www.wikidata.org/wiki/Special:EntityData/Q214867.json?revision=2541643848",
          "accessedOn": "2026-10-01",
          "sourceRevision": "2541643848"
        }
      ]
    },
    {
      "evidenceId": "ev-wikidata-p571-534257ea611b60fd",
      "claimId": "wikidata-p571-534257ea611b60fd",
      "claimText": "1937-03-24",
      "position": "supports",
      "sources": [
        {
          "sourceId": "source-record",
          "title": "National Gallery of Art — Wikidata Q214867",
          "publisher": "Wikidata",
          "url": "https://www.wikidata.org/wiki/Special:EntityData/Q214867.json?revision=2541643848",
          "accessedOn": "2026-10-01",
          "sourceRevision": "2541643848"
        }
      ]
    },
    {
      "evidenceId": "ev-wikidata-item",
      "claimId": "wikidata-item",
      "claimText": "Wikidata Q214867",
      "position": "supports",
      "sources": [
        {
          "sourceId": "source-record",
          "title": "National Gallery of Art — Wikidata Q214867",
          "publisher": "Wikidata",
          "url": "https://www.wikidata.org/wiki/Special:EntityData/Q214867.json?revision=2541643848",
          "accessedOn": "2026-10-01",
          "sourceRevision": "2541643848"
        }
      ]
    },
    {
      "evidenceId": "ev-source-revision",
      "claimId": "source-revision",
      "claimText": "2541643848, modified 2026-09-07T10:49:36.000Z",
      "position": "supports",
      "sources": [
        {
          "sourceId": "source-record",
          "title": "National Gallery of Art — Wikidata Q214867",
          "publisher": "Wikidata",
          "url": "https://www.wikidata.org/wiki/Special:EntityData/Q214867.json?revision=2541643848",
          "accessedOn": "2026-10-01",
          "sourceRevision": "2541643848"
        }
      ]
    }
  ],
  "contradictionState": "none_recorded",
  "ambiguityState": "none_recorded",
  "relations": {
    "discovery": "https://readyscan.ai/api/v1/ai-search/discovery",
    "evidence": "https://readyscan.ai/api/v1/ai-search/entities/national-gallery-of-art-q214867/evidence",
    "verification": "https://readyscan.ai/api/v1/ai-search/verify?entity=national-gallery-of-art-q214867"
  },
  "limitations": [
    "Published-source support is not independent factual verification; absent or non-matching evidence remains unknown."
  ]
}