{
  "format": "human-record-assertion-registry/0.1",
  "updated": "2026-09-19",
  "purpose": "Sparse cross-record assertions whose evidence/state need durable reference. This is not a universal truth graph and does not replace record-specific structures.",
  "model": "https://thehumanrecord.net/ASSERTION_MODEL.md",
  "assertions": [
    {
      "id": "thr:assertion:844f548d-80b8-4f25-a03b-d39e812f1ede",
      "subject": {
        "entity_id": "thr:entity:a9730018-62ab-4ccd-9882-eec34134c526"
      },
      "predicate": "creator_attribution",
      "object": {
        "entity_id": "thr:entity:da243807-2e4e-44a5-86bc-aa8b8d4f23fb"
      },
      "state": "reported_by_source",
      "evidence": {
        "source_ids": [
          "thr:source:fb6063f7-6e0d-4f87-9a9c-c5e5d001d724"
        ],
        "observation_ids": [
          "thr:observation:28fb29f3-ba69-44b4-a96c-c87db4e11bbe"
        ]
      },
      "scope": {
        "meaning": "The Metropolitan Museum of Art attributes the identified work to Winslow Homer; THR reconciled that owner attribution at the recorded observation time.",
        "not_established": "Independent observation or proof of the 1880 creation event."
      },
      "record_links": [
        "specimen.json",
        "specimen.md"
      ],
      "corrections": []
    },
    {
      "id": "thr:assertion:5a39064c-4cd4-4d41-92e5-dff7f38799ea",
      "subject": {
        "entity_id": "thr:entity:ccdb0a44-1893-448d-a7fc-631e18d829cf"
      },
      "predicate": "current_craft_status",
      "object": {
        "literal": "critically endangered"
      },
      "state": "reported_by_source",
      "evidence": {
        "source_ids": [
          "thr:source:2790ee98-28a4-4fca-bd80-b5b5484c47ef"
        ],
        "observation_ids": [
          "thr:observation:9b4e00c3-7803-4ee7-9392-b1a3b0a642e0"
        ]
      },
      "scope": {
        "status_owner": "Heritage Crafts",
        "source_read_at": "2026-09-16",
        "source_reported_review_cycle": "2025 Red List reviewers named on page",
        "not_established": "An independent THR practitioner census or adjudication of craft viability."
      },
      "record_links": [
        "cases/sieve-riddle-revival.json",
        "cases/sieve-riddle-revival.md"
      ],
      "corrections": []
    },
    {
      "id": "thr:assertion:a0b4db04-3dc6-4dea-a489-011c8b72baae",
      "subject": {
        "record_id": "viral-flak-claim",
        "local_subject": "primary_claim"
      },
      "predicate": "claim_status",
      "object": {
        "literal": "Roughly 80% of German anti-aircraft crew members died during the Second World War."
      },
      "state": "unsupported_in_sources_checked",
      "evidence": {
        "source_ids": [
          "thr:source:49067461-b413-47a3-b554-fa0ed639db58",
          "thr:source:5de43bc3-cf94-40c3-b312-1217d37dd812",
          "thr:source:0b87b7bd-7673-4183-bfbe-03f316efffb0",
          "thr:source:f2d4cff8-d1bd-49a6-b19b-d177326ad620",
          "thr:source:5c1e8a9f-6b72-4e21-ae4f-24d8731f9b70"
        ],
        "observation_ids": [
          "thr:observation:b10adb22-8832-4337-97f8-d61854b5bf98",
          "thr:observation:e8987ae5-9762-4deb-a1f5-d85b1154f802",
          "thr:observation:5a6bc6b4-305a-45d7-9d1e-ad73a6649688",
          "thr:observation:99b0c704-115b-4286-9748-43cf2add0e67",
          "thr:observation:ab27e9a4-13cf-4a46-9cc6-01e1b3c8f5d2",
          "thr:observation:2bcddd1f-6f51-4d00-8c9c-34889601ad03"
        ]
      },
      "scope": {
        "record_version": "0.2.7",
        "historical_truth_status": "unknown",
        "meaning": "The bounded sources checked by the current record, now including a selected Westermann 1940 campaign passage, a targeted full-text search of an unauthenticated full Westermann reproduction, and an Overmans publisher-preview scope check, do not establish the claimed aggregate German flak-crew mortality rate.",
        "not_established": "That the claim is false, that the archive/book search is exhaustive, that the Westermann reproductions are authenticated against the publisher edition, that the relevant Overmans result tables or any flak-specific breakdown were inspected, that an 80-percent Allied flak-casualty passage is ancestral to the viral claim, or that no earlier source contains the figure."
      },
      "record_links": [
        "cases/viral-flak-claim.json",
        "cases/viral-flak-claim.md"
      ],
      "corrections": []
    },
    {
      "id": "thr:assertion:23bfb7a2-1f36-4a7a-9f75-7b2427366636",
      "subject": {
        "mention_id": "thr:mention:beee588e-f706-40ab-95b3-5d46c097c687"
      },
      "predicate": "reported_companion_historians",
      "object": {
        "literal": "Silenus and Sosylus"
      },
      "state": "reported_by_source",
      "evidence": {
        "source_ids": [
          "thr:source:8d40b5c1-3eb6-47d3-86e2-48e95853e930"
        ],
        "observation_ids": [
          "thr:observation:6483e31f-7d60-488b-a4ce-1c15155a01cc"
        ]
      },
      "scope": {
        "locator": "Nepos, Hannibal 13.3",
        "ceiling": "Nepos reports that Silenus and Sosylus were with Hannibal and wrote about the war; THR has not inspected their complete works."
      },
      "record_links": [
        "cases/hannibal-barca.json",
        "cases/hannibal-barca.md"
      ],
      "corrections": []
    },
    {
      "id": "thr:assertion:72388414-cbc8-47b2-99af-51b639b14472",
      "subject": {
        "literal": "Sosylus' historical account"
      },
      "predicate": "reported_source_evaluation",
      "object": {
        "literal": "Polybius dismisses the authority of Sosylus and Chaereas."
      },
      "state": "reported_by_source",
      "evidence": {
        "source_ids": [
          "thr:source:7a1b2e15-a9b2-4af4-9e0b-2c44b10eb9d2"
        ],
        "observation_ids": [
          "thr:observation:1ea96911-3e2c-42f8-b55e-63b45a9ad2d0"
        ]
      },
      "scope": {
        "locator": "Polybius, Histories 3.20.5",
        "ceiling": "This is Polybius' evaluation of another historian, not THR's adjudication of Sosylus."
      },
      "record_links": [
        "cases/hannibal-barca.json",
        "cases/hannibal-barca.md"
      ],
      "corrections": []
    },
    {
      "id": "thr:assertion:3e38d580-5c88-463c-8a3a-9eeab8074fea",
      "subject": {
        "mention_id": "thr:mention:4fae4e8f-71c1-4eb0-8f62-6c63ae9e9a71"
      },
      "predicate": "reported_documentary_source",
      "object": {
        "literal": "A bronze tablet at the Lacinian promontory carrying Hannibal's troop lists."
      },
      "state": "reported_by_source",
      "evidence": {
        "source_ids": [
          "thr:source:7a1b2e15-a9b2-4af4-9e0b-2c44b10eb9d2"
        ],
        "observation_ids": [
          "thr:observation:1ea96911-3e2c-42f8-b55e-63b45a9ad2d0"
        ]
      },
      "scope": {
        "locator": "Polybius, Histories 3.33.17-18",
        "ceiling": "Polybius reports finding and using the bronze tablet described at 3.33.17-18. THR has not observed that ancient carrier or an independently preserved copy, and this fixture does not establish that it is physically identical to the column/inscription described at 3.56.4."
      },
      "record_links": [
        "cases/hannibal-barca.json",
        "cases/hannibal-barca.md"
      ],
      "corrections": []
    },
    {
      "id": "thr:assertion:de8cb921-d655-46ba-8543-6ad14f6249ca",
      "subject": {
        "literal": "Polybius' claimed investigation of the Alpine crossing"
      },
      "predicate": "reported_investigative_method",
      "object": {
        "literal": "Polybius says he questioned men who had been present, inspected the country, and crossed the Alps himself."
      },
      "state": "reported_by_source",
      "evidence": {
        "source_ids": [
          "thr:source:7a1b2e15-a9b2-4af4-9e0b-2c44b10eb9d2"
        ],
        "observation_ids": [
          "thr:observation:1ea96911-3e2c-42f8-b55e-63b45a9ad2d0"
        ]
      },
      "scope": {
        "locator": "Polybius, Histories 3.48.12",
        "ceiling": "This records Polybius' own account of his evidence-gathering method. THR did not observe the reported interviews, route inspection, travel, or ancient investigation."
      },
      "record_links": [
        "cases/hannibal-barca.json",
        "cases/hannibal-barca.md"
      ],
      "corrections": []
    },
    {
      "id": "thr:assertion:ace95214-7288-414b-9982-78c65cfdf088",
      "subject": {
        "mention_id": "thr:mention:4fae4e8f-71c1-4eb0-8f62-6c63ae9e9a71"
      },
      "predicate": "reported_alpine_crossing",
      "object": {
        "literal": "Hannibal crossed the Alps into Italy."
      },
      "state": "reported_by_source",
      "evidence": {
        "source_ids": [
          "thr:source:7a1b2e15-a9b2-4af4-9e0b-2c44b10eb9d2"
        ],
        "observation_ids": [
          "thr:observation:1ea96911-3e2c-42f8-b55e-63b45a9ad2d0"
        ]
      },
      "scope": {
        "locator": "Polybius, Histories 3.56.3-4",
        "ceiling": "Attribution to Polybius' surviving account; exact pass and complete source ancestry are not established by this fixture."
      },
      "record_links": [
        "cases/hannibal-barca.json",
        "cases/hannibal-barca.md"
      ],
      "corrections": []
    }
  ],
  "ceilings": [
    "ENTITY != ASSERTION",
    "ASSERTION != TRUTH",
    "SOURCE STATEMENT != THR ENDORSEMENT",
    "CURRENT RECORD FINDING != PERMANENT WORLD FACT",
    "SAME NUMBER != SAME CLAIM",
    "EXTRACTION != ENDORSEMENT"
  ]
}