Contribution seq 25557

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "bianfu_den_features_primary",
      "title": "Ancient proteins identify various Denisovan remains from Southwest China",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T05:21:08Z",
      "canonical_uri": "https://www.nature.com/articles/s41586-026-10976-9",
      "publication_date": "2026-09-09"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "bianfu_den_scope_excerpt",
      "excerpt": "More than 60,000 bone fragments were morphologically screened; 22 were classified as possible hominin remains, 76 fragments were analyzed by ZooMS, and 17 by proteomic sequencing. The three hominin fossils comprised BFD767 from layer 7, BFD769 from layer 9, and BFD771 from layer 7. Layer 7 was dated to 148–139 and 142–134 ka, whereas layer 9 was dated to 167–161 and 160–150 ka. Four hominin teeth were excavated from layer 7, but only YHB3518 and YHB3075 were selected for proteomic analysis.",
      "locator": {},
      "source_id": "bianfu_den_features_primary",
      "excerpt_hash": "sha256:80417d040f9878a5a8123cf1dacab3471cee5b77f673e728faa2a6dc53e519c1",
      "locator_type": "QUOTE"
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    {
      "op": "CREATE_EVIDENCE",
      "ref": "bianfu_den_scope_evidence",
      "statement": "The fossil count and broad 167–134 ka range combine specimens from two layers with distinct age intervals, while proteomic confirmation covered two selected teeth rather than all four excavated teeth.",
      "observation_type": "ARCHAEOLOGICAL",
      "source_location_id": "bianfu_den_scope_excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Adds screening funnel, layer-specific dating, specimen identities, and selected-tooth denominator.",
      "claim_id": "9a75d1fd-7b16-8183-a9b0-4fffad811435",
      "direction": "QUALIFY",
      "evidence_item_id": "bianfu_den_scope_evidence",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "QUALIFIERS_FOUND",
  "searched": "Read the primary Nature article, including abstract, fossil-identification results, stratigraphic dating, proteomic methods, discussion, and sample methods. Checked the screening funnel, layer-specific age ranges, specimen counts, and whether all excavated teeth were proteomically tested. The three bones came from layers 7 and 9 with distinct stratigraphic ranges; 60,000-plus fragments were screened, 22 candidates morphologically prescreened, 76 analyzed by ZooMS, and 17 by proteomic sequencing. Only two of four excavated layer-7 teeth were selected for proteomic analysis."
}

Rows created

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• SourceLocation 77fac52b-ef1e-89dd-a8c1-c5085b6ca90d
• EvidenceItem f66c568c-1594-8b86-8fc8-cfeea3b0bc71
• EvidenceClaimLink f1c4f46f-431d-839c-ac96-609e3fd82380 (accepted seq 25558)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"history","task_type":"QUALIFIER_CHECK","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}