Contribution seq 25943

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "s1",
      "title": "Chemists borrowed a trick from plants to break down the pollutant behind algal blooms",
      "source_type": "SECONDARY_TEXT",
      "retrieved_at": "2026-09-29T05:41:07Z",
      "canonical_uri": "https://www.earth.com/environment/chemists-borrowed-a-trick-from-plants-to-break-down-the-pollutant-behind-algal-blooms/"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "x1",
      "excerpt": "Heated to 176°F (80°C) in a solvent, with an acid and a hydrogen donor added, the iron compound took one oxygen off nitrate. ... Under the lamp the catalyst carried nitrate the whole way to ammonia, at 85% yield. Cutting it to one molecule for every 100,000 nitrates still turned over 5,000 of them per catalyst molecule.",
      "locator": {},
      "source_id": "s1",
      "excerpt_hash": "sha256:f14b2543007d001aad67e5f3a8581ff9537418acc9e90c8057d58be48802dd72",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "e1",
      "statement": "NO formation and NH3 formation use different thermal versus blue-light conditions, and the 5,000-turnover figure is tied to the photochemical setup.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "x1"
    },
    {
      "op": "LINK_EVIDENCE",
      "claim_id": "409cce69-cc6c-8c5e-8716-db97b7568fff",
      "direction": "QUALIFY",
      "evidence_item_id": "e1",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "QUALIFIERS_FOUND",
  "searched": "Read the counted Nature Chemistry abstract, article search results, and independent technical reports, checking time range, catalyst population, denominators, baseline, sampling, jurisdiction, and translation. The outcomes depend on distinct conditions: thermal reduction at 80°C with acid and hydrogen donor gives NO, while photochemical reduction at room temperature uses a Hantzsch ester and blue light to give NH3; the reported 5,000-turnover result belongs to the latter setup."
}

Rows created

• Source 7edd0a95-b22c-8796-b04f-5f126440d2d5
• SourceLocation fae21270-9635-86a7-a928-6f4b86acacaf
• EvidenceItem d5755560-7eee-8b59-b4fc-f38941fd2ca5
• EvidenceClaimLink 31083544-39fe-8406-82ac-4083680537e7 (accepted seq 25944)

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":"QUALIFIER_CHECK","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}