Contribution seq 14985

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "s1",
      "title": "Adding flexibility to payments for environmental services enhances cost-effectiveness in the Brazilian Amazon",
      "publisher": "Nature Communications",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T00:03:51Z",
      "canonical_uri": "https://www.nature.com/articles/s41467-026-75322-z",
      "publication_date": "2026-07-22"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "e1",
      "excerpt": "In both treatment arms, payments were made conditionally, at the end of a twelve-month contract period, and forest conservation was monitored using high-frequency Sentinel-1 Synthetic-Aperture Radar (SAR) imagery.",
      "locator": {},
      "source_id": "s1",
      "excerpt_hash": "sha256:7f46032a22d31aaaf06a61f11cf0e71eaab850428eaf2fd5220ffb0d47d14923",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "e2",
      "excerpt": "Our sample consisted of 456 landowners, with 154 in the control group, 150 in treatment arm A, and 152 in treatment arm B.",
      "locator": {},
      "source_id": "s1",
      "excerpt_hash": "sha256:4e77290903f93070b8f9bc4db2dc490fcaff989000dd15176354b09980c4d056",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "e3",
      "excerpt": "Starting in period 8 (August 2022), however, we observe a clear divergence: deforestation in the PES groups declined relative to the control, consistent with the program’s conservation objective.",
      "locator": {},
      "source_id": "s1",
      "excerpt_hash": "sha256:ff8f67c3034b69f21e60a2dd45b74fa512eae0250069bc644c17d5fccc81cd7e",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "e4",
      "excerpt": "Our experiment is underpowered to detect differences in deforestation outcomes between alternative contract designs. Therefore, our statistically significant point estimates may be upward-biased.",
      "locator": {},
      "source_id": "s1",
      "excerpt_hash": "sha256:eac0e4ba047dfddb7d73c22a3e72e14f01f768fa48d869dd7d9d31d474ef9001",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "ev1",
      "statement": "The comparison concerns a conditional twelve-month PES contract period, monitored with satellite imagery.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "e1"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "ev2",
      "statement": "The randomized sample comprised 456 Acre landowners divided among control, stringent, and flexible treatment arms.",
      "observation_type": "MEASUREMENT",
      "source_location_id": "e2"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "ev3",
      "statement": "The cited peak-period comparison corresponds to August 2022, when treatment groups diverged from control.",
      "observation_type": "MEASUREMENT",
      "source_location_id": "e3"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "ev4",
      "statement": "The study cautions that contract-design deforestation comparisons are underpowered and significant estimates may be upward-biased.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "e4"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Specifies the contract duration and monitoring frame.",
      "claim_id": "c957db1c-9ff0-85fa-85fd-80ed3fe63063",
      "direction": "QUALIFY",
      "evidence_item_id": "ev1",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Specifies the randomized sample and treatment allocation.",
      "claim_id": "c957db1c-9ff0-85fa-85fd-80ed3fe63063",
      "direction": "QUALIFY",
      "evidence_item_id": "ev2",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Identifies the peak period as August 2022 rather than an undated interval.",
      "claim_id": "c957db1c-9ff0-85fa-85fd-80ed3fe63063",
      "direction": "QUALIFY",
      "evidence_item_id": "ev3",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Adds the authors’ power limitation and caution about possible upward bias.",
      "claim_id": "c957db1c-9ff0-85fa-85fd-80ed3fe63063",
      "direction": "QUALIFY",
      "evidence_item_id": "ev4",
      "interpretive_steps": 0,
      "relevance_strength": "MODERATE"
    }
  ],
  "outcome": "QUALIFIERS_FOUND",
  "searched": "Read the counted abstract passage and the full Nature Communications article, checking time range, population, denominator, baseline, sampling limits, jurisdiction, and translation. Material qualifiers are the twelve-month contract, 456 Acre landowners in three randomized groups, and the peak comparison occurring in August 2022 during a regional deforestation spike; the article also cautions that the contract-design comparison has limited statistical power."
}

Rows created

• Source 7c55ae3f-08d1-8c34-a48a-b7d48a130ada
• SourceLocation 19b933df-d716-8f58-a4b1-0329a78bf45c
• SourceLocation fe8a823e-6b43-8001-b22b-6b5b5b683d28
• SourceLocation 35a8f97f-a48d-8e58-a1f9-070630093e47
• SourceLocation 6f7cc719-e659-8e7e-ae79-23a207268a55
• EvidenceItem 82048888-f76b-8a50-ac02-e7722b4e158f
• EvidenceItem 4c8cd308-0047-8782-bd2f-aa58b45aa50c
• EvidenceItem da4b123d-364d-8814-b672-a7659b314731
• EvidenceItem d9480c75-c795-8eeb-aad4-bcca449c3e2e
• EvidenceClaimLink 74625d20-3c98-8524-b18e-859ac24eb745 (accepted seq 14986)
• EvidenceClaimLink 6f53be9f-9b62-8c6a-9ec5-7ae533276f17 (accepted seq 14986)
• EvidenceClaimLink b8fdc205-c770-8334-8332-2093bd68f462 (accepted seq 14986)
• EvidenceClaimLink d02b8bae-b2bc-81a7-b3ad-b1f064655e38 (accepted seq 14986)

Status history

Audits

None.

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