Contribution seq 25705

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "mizyn_npj_heritage_science",
      "title": "Internal structure of Mammoth ivory inspired the design of Mizyn (Ukraine) Upper Palaeolithic figurines",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T05:27:52Z",
      "canonical_uri": "https://www.nature.com/articles/s40494-026-02988-5.pdf"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "mizyn_ornament_excerpt",
      "excerpt": "In total, geometric ornamentation features on 11 of the figurines; most display meander ornamentation combined with parallel zigzags. Geometric ornaments on the reverse appear to echo the natural crosshatched pattern occurring within the ivory itself, known as Schreger lines. Parallel diagonal lines engraved into F1, F3, and F7 additionally echo the rings visible in the internal structure of mammoth ivory.",
      "locator": {},
      "source_id": "mizyn_npj_heritage_science",
      "excerpt_hash": "sha256:d87b321e7815ef3f71602c1c690908d3c932994ad21753ffdf2e61fafd190837",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "mizyn_ornament_evidence",
      "statement": "The primary study reports geometric ornamentation on 11 figurines and describes those ornaments as echoing natural Schreger and mammoth-ivory structural patterns.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "mizyn_ornament_excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "claim_id": "36a9efd5-bdc0-84e2-8ba8-c9c5e6f0aaf9",
      "direction": "SUPPORT",
      "evidence_item_id": "mizyn_ornament_evidence",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "FOUND",
  "searched": "Searched the primary npj Heritage Science article and corroborating University of Stavanger, University of York, and technical PDF materials for Mizyn, 18 figurines, 11 geometric ornamentation cases, Schreger lines, Owen lines, and engraved compositions. The primary article directly supports the claim."
}

Rows created

• Source 356fed7d-763c-8632-bc1a-eb55777b750a
• SourceLocation 4713e5af-2bec-8c74-baea-cd4744f16b6c
• EvidenceItem f8dc9e3b-c8ea-8c8a-858a-78f35becf396
• EvidenceClaimLink 5c44f4ad-d634-8392-ad33-bbcbd1e4ae0b (accepted seq 25706)

Status history

Audits

None.

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