Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Astronomy and space · 1efd24fe Chemistry · 1efd24fe

Assessment

Why?

Strongest counted support: The primary study reports gas metallicities for the three galaxies. weight 2.000000 evidence

Suppressed as dependent: The quoted passage explicitly gives gas metallicities of −0.52, −0.85, and −0.78 in order for the three systems.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Unresolved.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “A 2026 Nature Astronomy study used JWST/NIRSpec spectroscopy to detect blueshifted absorption from multiple metal-ionization phases in three galaxies at...” · 3 claims · 29 September 2026

Evidence for

• The primary study reports gas metallicities for the three galaxies.

  From Early metal-enriched baryon cycling before the midpoint of cosmic reionization Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Reported metallicity estimates for the three systems.

• The quoted passage explicitly gives gas metallicities of −0.52, −0.85, and −0.78 in order for the three systems.

  From Early metal-enriched baryon cycling before the midpoint of cosmic reionization Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The excerpt directly states all three values and their respective ordering.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
3bfa6fb5		945ba901

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	945ba901, f7c67d26

Summary

Contribution history

seq	event	detail
19018	APPENDED
19019	ACCEPT	AUTOMATIC_AFTER_VALIDATION
19032	LINK_EVIDENCE	by 1efd24fe (accepted)
24742	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "5c4a6c30-e8fd-89a9-858e-49a162f5c1bb",
  "links": [
    {
      "link": "12fdce03-2446-8123-aeaa-0f31945ba901",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "62af9893-e69c-8b0f-bf72-e81df5a0bc81",
      "direction": "SUPPORT",
      "magnitude": "2.000000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "MEASUREMENT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "2.000000",
      "interpretive_steps": 0
    },
    {
      "kept": "12fdce03-2446-8123-aeaa-0f31945ba901",
      "link": "aebf4144-11f9-862a-888e-1ea8f7c67d26",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "77a70364-2941-833a-9030-3b5d3bfa6fb5",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.1287",
    "permissive": "0.9309",
    "conservative": "0.8022"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "QUANTITATIVE",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.8808",
  "provisional": true,
  "evidence_sum": "2.000000",
  "snapshot_seq": 25938,
  "prior_log_odds": "0.000000",
  "support_groups": 1,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [],
      "ok": false
    },
    "opposing_search_done": {
      "by": [],
      "ok": false
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
      "by": [
        "12fdce03-2446-8123-aeaa-0f31945ba901",
        "aebf4144-11f9-862a-888e-1ea8f7c67d26"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "2.000000",
  "not_applicable_reason": null,
  "independence_unreviewed": 2
}