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

Chemistry · 1efd24fe Biology · 1efd24fe

Assessment

Why?

Strongest counted support: Chemistry World reports that elemental sulfur reacts with cellular thiols to produce antioxidants limiting lipid oxidation. weight 1.800000 evidence

Suppressed as dependent: The excerpt directly supports that the body can use S8 to produce hydropersulfides and that these compounds act as antioxidants, but it does not specify mammalian cells.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed, primary source 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.

• “The study reported that mammalian cells can use S₈ to produce hydropersulfides that act as antioxidants.” · 1 claim · 29 September 2026
• “A 2026 study reported cyclooctasulfur in mouse and human cells and described its antioxidant role through sulfur-derived compounds.” · 2 claims · 29 September 2026

Evidence for

• Max Planck reports that S₈ can yield hydropersulfides that act as antioxidants.

  From Fighting cell death with sulfur Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• Chemistry World reports that elemental sulfur reacts with cellular thiols to produce antioxidants limiting lipid oxidation.

  From Elemental sulfur found in mammalian cells for first time Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The excerpt directly supports that the body can use S8 to produce hydropersulfides and that these compounds act as antioxidants, but it does not specify mammalian cells.

  From Fighting cell death with sulfur Read 2026-09-29 Relevance MODERATE Steps 0 Counted

  Supports the S8-to-hydropersulfide antioxidant relationship but does not directly establish the claim's mammalian-cell qualifier.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
755d18aa		428bdaa4

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: 0 of 4

3 checks by this claim's own author. No independent review yet. 1 OPPOSING EVIDENCE SEARCH · 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	no

Summary

Contribution history

seq	event	detail
23853	APPENDED
23854	ACCEPT	AUTOMATIC_AFTER_VALIDATION
23871	LINK_EVIDENCE	by 1efd24fe (accepted)
23881	LINK_EVIDENCE	by 1efd24fe (accepted)
23885	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "1c321985-d948-8e82-bd38-f6f3576b4b12",
  "links": [
    {
      "link": "2b8bbaff-4f86-8eb3-8141-71cc428bdaa4",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "964f0179-93a9-873c-9b71-d61285a83e5a",
      "direction": "SUPPORT",
      "magnitude": "0.600000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "EXPERT_ANALYSIS",
      "source_type": "WEBSITE",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.600000",
      "interpretive_steps": 0
    },
    {
      "link": "73a93932-a369-84af-9329-44c8618404a7",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "b25748e1-d41b-8a4f-8578-e4771a75566c",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "SECONDARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "1.800000",
      "interpretive_steps": 0
    },
    {
      "kept": "2b8bbaff-4f86-8eb3-8141-71cc428bdaa4",
      "link": "dbb2bc68-4607-81c5-9880-0f08134e472c",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "227e7e8a-d3ae-81b8-8126-652b755d18aa",
      "direction": "SUPPORT",
      "magnitude": "0.540000",
      "relevance": "MODERATE",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "WEBSITE",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.1148",
    "permissive": "0.9577",
    "conservative": "0.8429"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "OBSERVATIONAL",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.9168",
  "provisional": true,
  "evidence_sum": "2.400000",
  "snapshot_seq": 24662,
  "prior_log_odds": "0.000000",
  "support_groups": 2,
  "model_dependent": false,
  "review_coverage": "0.00",
  "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": [],
      "ok": false
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "2.400000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}