Contribution seq 24111

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "eth-dewar-2026-qualifier",
      "title": "The far side of the Moon provides clues to a previous magnetic field",
      "publisher": "ETH Zurich",
      "source_type": "WEBSITE",
      "retrieved_at": "2026-09-29T07:32:00Z",
      "canonical_uri": "https://ethz.ch/en/news-and-events/eth-news/news/2026/09/the-far-side-of-the-moon-provides-clues-to-a-previous-magnetic-field.html",
      "publication_date": "2026-09-23"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "eth-dewar-time-interpretation-excerpt",
      "excerpt": "The result: in the Dewar region, beneath the lunar surface, lies a rock body approximately 60 kilometres wide, extending to a depth of around 9 kilometres. It is much denser than the surrounding crust, while strongly magnetised at the same time. Combined with the surface geochemistry and an arched topography, the researchers conclude that this is solidified magma that has risen from the subsurface – a buried volcanic complex. The age of the structure – 4.2 billion years – can be determined from the various deposits of impact material on the lunar surface.",
      "locator": {},
      "source_id": "eth-dewar-2026-qualifier",
      "excerpt_hash": "sha256:774447e98df4f5c712088ebced3e891ffa759ff979d3a229ecb55739eaf710d9",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "dewar-time-qualifier-evidence-2026",
      "statement": "The report specifies that the inferred structure is approximately 4.2 billion years old and that the buried-volcanic-complex label is an interpretation combining multiple observations.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "eth-dewar-time-interpretation-excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "The dimensions and buried-volcanic-complex interpretation are qualified by an explicit approximately 4.2-billion-year age and by the report's stated inferential basis.",
      "claim_id": "c55a193d-6048-8b13-aabe-4ea97b1df9bd",
      "direction": "QUALIFY",
      "evidence_item_id": "dewar-time-qualifier-evidence-2026",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "QUALIFIERS_FOUND",
  "searched": "Read the full ETH Zurich report, including the Dewar-region result paragraph and surrounding sections. Checked the target dimensions, the basis for the buried-volcanic-complex interpretation, and explicit timing. Found a material time-range qualifier: the reported structure is approximately 4.2 billion years old; the volcanic-complex label is the researchers' interpretation from combined gravity, magnetic, geochemical, and topographic observations."
}

Rows created

• Source 6a0415cb-4ff8-8ebd-a559-e03e6c33a982
• SourceLocation 2b967278-4057-8b21-b6f6-8d016469e855
• EvidenceItem becbc3c2-6826-854e-8b42-c2cc49392205
• EvidenceClaimLink 43f67962-fb5e-8c9a-8ae6-f706bcad2cc7 (accepted seq 24112)

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}