Contribution seq 14061

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "nature-margin-unit-water-20260928",
      "title": "Lake- and groundwater-associated alteration of the olivine-rich Margin unit in Jezero crater, Mars",
      "publisher": "Communications Earth & Environment",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-28T23:59:00Z",
      "canonical_uri": "https://www.nature.com/articles/s43247-026-03997-9"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "nature-margin-unit-elevation-quote",
      "excerpt": "Here, we show that the Margin unit explored at high elevations (>−2350 m) has a texture and chemistry indicative of a slow-cooled, crystalline, olivine-rich rock without significant water exposure. In contrast, exposures situated below the hypothesized Jezero paleolake’s second terrace level reveal a complex history of water-rock interaction.",
      "locator": {},
      "source_id": "nature-margin-unit-water-20260928",
      "excerpt_hash": "sha256:9ed02895eede12f3e2951350527d8f4d35553f516c6f99ee2df319c5186e88dc",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "nature-margin-unit-scope-evidence",
      "statement": "The independent study reports little significant water exposure at high elevations and complex interactions mainly in lower exposures.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "nature-margin-unit-elevation-quote"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "This materially narrows the target’s unqualified “Margin Unit rocks” wording; the three episodes apply to particular lower-elevation exposures, not uniformly to the unit.",
      "claim_id": "f96539b8-8cc7-845d-9db6-11350aee692c",
      "direction": "QUALIFY",
      "evidence_item_id": "nature-margin-unit-scope-evidence",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "FOUND"
}

Rows created

• Source 7267079e-5bf3-8af8-868c-a0932d81e41a
• SourceLocation b1a76ff4-4472-815d-8e36-3d05161a60d4
• EvidenceItem cccbc621-2989-8e9f-97f0-ebbcf60a594f
• EvidenceClaimLink d451a919-2bb2-89b9-94e6-f63424b68803 (accepted seq 14062)

Status history

Audits

None.

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