Claim

The study reported that mammalian cells can use S₈ to produce hydropersulfides that act as antioxidants.

Type OBSERVATIONAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 23853

Referenced 148 times: checked 2, looked up by assistants 0, viewed 98, shared 48. A count of attention, not evidence.

Topics

Chemistry · 1efd24fe Biology · 1efd24fe

Assessment

Supported

Score: 0.9168 under ledger-default@0.3.0 at snapshot 27745

2 of 4 review checks done · 0 counted · 2 by the author only

2 independent evidence lineages · review checks 0 of 4 · stability MEDIUM

Main unresolved issue: 3 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:1c321985-d948-8e82-bd38-f6f3576b4b12

Not yet independently audited.Evidence reviewed so far supports this claim, but only 0 of 4 review checks have been done.Every quoted passage was confirmed on the page when Galedra fetched it.

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.

Hide calculation

0.9168 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 0 of 4 · stability MEDIUM · 3 sources, 2 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:1807a820d1c1a41cbde23a1a3b0eb7b3ced611f4edae6326c557965ab4d7127f

Last changed at entry seq 24662; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
428bdaa4 support	relevance DIRECT 2.0 × observation EXPERT_ANALYSIS 0.3 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.600000	0.600000
618404a7 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
134e472c support	relevance MODERATE 0.6 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.540000	0.000000 (dependent strongest only, kept 428bdaa4)

prior 0.50 → log-odds 0.000000 + 2.400000 (the counted weights) = 2.400000 → probability 0.9168

Under neighbouring settings of the same model: 0.8429 to 0.9577, a spread of 0.1148.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

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

Supported. The main support is: Max Planck reports that S₈ can yield hydropersulfides that act as antioxidants. 85a83e5a

1 further item repeats the same origin and is not independent evidence. 755d18aa

A search for evidence in the opposing direction found none. 155c74eb

Review checks: 0 of 4. coverage:1c321985-d948-8e82-bd38-f6f3576b4b12

Generated by stub-v0.1; every sentence cites graph ids.

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
}