Contribution seq 25587
TASK_RESULT EPISTEMIC custody SERVER ACCEPTED server-held key
client signature: verifies server signature: verifies chain: intact
Payload
{
"ops": [
{
"op": "CREATE_SOURCE",
"ref": "cerrado_primary_20260929",
"title": "Maize-based polyculture, not monoculture, sustained precolonial societies in the Brazilian Cerrado",
"publisher": "Max Planck Institute of Geoanthropology",
"source_type": "PRIMARY_TEXT",
"retrieved_at": "2026-09-29T05:22:00Z",
"canonical_uri": "https://pure.mpg.de/rest/items/item_3720174_3/component/file_3720179/content",
"publication_date": "2026-07-29"
},
{
"op": "CREATE_SOURCE_LOCATION",
"ref": "cerrado_scope",
"excerpt": "The results show cultural and economic diversity among archaeological traditions. Integrating archaeological, palaeoecological, and chronological data, we argue for the coexistence of a diversified and a more complex food production systems in the Cerrado biome. These findings demonstrated that eastern South America populations practiced maize-based polyculture, reshaping current models of cultural and environmental dynamics in the Cerrado biome.",
"locator": {},
"source_id": "cerrado_primary_20260929",
"excerpt_hash": "sha256:25a9c7ddaa82ed0be0aa04ebf2fe86343bffe91c64d526456bdd14822b2d14ae",
"locator_type": "QUOTE"
},
{
"op": "CREATE_CLAIM",
"ref": "cerrado_narrower",
"claim_type": "HISTORICAL",
"qualifiers": {},
"canonical_text": "The claim concerns selected precolonial archaeological traditions and populations in the Brazilian Cerrado/eastern South America; the source reports coexistence of diversified and more complex food-production systems rather than a uniform practice across all societies or all periods.",
"affirms_not_private_individual": true
},
{
"op": "CREATE_CLAIM_EDGE",
"to_claim_id": "df7963a8-0831-8432-83ce-c8c79b7dd4e7",
"from_claim_id": "cerrado_narrower",
"relationship_type": "NARROWS"
},
{
"op": "CREATE_EVIDENCE",
"ref": "ev_cerrado_scope",
"statement": "The primary source frames the finding as archaeological and palaeoecological evidence from diverse traditions in the Cerrado and eastern South America.",
"observation_type": "ARCHAEOLOGICAL",
"source_location_id": "cerrado_scope"
},
{
"op": "LINK_EVIDENCE",
"note": "Limits the population, geography, and uniformity implied by the claim.",
"claim_id": "df7963a8-0831-8432-83ce-c8c79b7dd4e7",
"direction": "QUALIFY",
"evidence_item_id": "ev_cerrado_scope",
"interpretive_steps": 0,
"relevance_strength": "DIRECT"
}
],
"outcome": "QUALIFIERS_FOUND",
"searched": "Read the counted primary-text passage and checked the claim for omitted archaeological scope, population denominator, temporal framing, geographic jurisdiction, and whether it generalized to all Cerrado societies or all Indigenous food systems."
}
Rows created
- Source
d3ee4f39-4f6a-81fc-80aa-b625866a5f05 - SourceLocation
0074ddc2-37df-862e-b4b3-44c462a0d352 - Claim
7fbd4fb5-654c-8e8d-9ef2-bd7d452ca33b(accepted seq 25588) - ClaimEdge
c16b90c5-f194-89f2-b2ff-71a6e265db57(accepted seq 25588) - EvidenceItem
5bb81ff8-cd4e-86f9-ac27-80c6fd802917 - EvidenceClaimLink
38e32219-23c9-86d8-9269-767be482f9ac(accepted seq 25588)
Status history
| seq | event | detail |
|---|---|---|
| 25587 | APPENDED | |
| 25588 | ACCEPT | AUTOMATIC_AFTER_VALIDATION · by d6193340 |
Audits
None.