Claim

Under the reported thermal catalytic conditions, the iron complex converted nitrate to nitric oxide with a measured 68% yield in the trapping experiment.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 19261

Referenced 90 times: checked 1, looked up by assistants 0, viewed 67, shared 22. A count of attention, not evidence.

Topics

Chemistry · 1efd24fe Environment · 1efd24fe

Assessment

Supported

Score: 0.8808 under ledger-default@0.3.0 at snapshot 27745

2 of 4 review checks done · 1 counted · 1 by the author only

1 independent evidence lineage · review checks 1 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:b21b995f-fde5-863f-8abd-693165d8079c

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage from nature.com was not found on the page when Galedra fetched it.

Why?

Strongest counted support: The primary study reports 68% nitric oxide yield in the thermal trapping experiment. weight 2.000000 evidence

Suppressed as dependent: The excerpt reports NO identification at 68% yield and a parallel trapping experiment affording 68% nitrosyl product.

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.

Hide calculation

0.8808 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability MEDIUM · 3 sources, 1 independent lineage

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:39d13a98ad6de20bb0b9a38e38abbaf64c991cc23877050a35188c7bc1519850

Last changed at entry seq 25950; 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
f58c11c5 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	0.000000 (dependent strongest only, kept c139f2f4)
c139f2f4 support	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × 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	2.000000	2.000000
de4a7bc7 qualify	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	0.000000 (non directional)

prior 0.50 → log-odds 0.000000 + 2.000000 (the counted weights) = 2.000000 → probability 0.8808

Under neighbouring settings of the same model: 0.8022 to 0.9309, a spread of 0.1287.

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.

“A 2026 Nature Chemistry study reported that secondary-sphere hydrogen bonds enhanced nitrate binding in zinc complexes and enabled iron-catalyzed nitrate...” · 3 claims · 29 September 2026

Evidence for

The primary study reports 68% nitric oxide yield in the thermal trapping experiment.

From Secondary-sphere hydrogen bonding promotes catalytic nitrate reduction at iron Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Primary thermal catalysis result.
The excerpt reports NO identification at 68% yield and a parallel trapping experiment affording 68% nitrosyl product.

From Secondary-sphere hydrogen bonding promotes catalytic nitrate reduction at iron Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

The 68% value is from a parallel Co(TPP) trapping experiment, which materially qualifies how the nitric-oxide yield was measured.

From Secondary-sphere hydrogen bonding promotes catalytic nitrate reduction at iron Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Suppressed as dependent

Evidence	Group	Kept instead
156830f2		c139f2f4

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	f58c11c5, c139f2f4, de4a7bc7

Summary

Supported. The main support is: The primary study reports 68% nitric oxide yield in the thermal trapping experiment. d72a1759

1 further item repeats the same origin and is not independent evidence. 156830f2

Qualifier: The 68% value is from a parallel Co(TPP) trapping experiment, which materially qualifies how the nitric-oxide yield was measured. 6c69b7aa

Review checks: 1 of 4. coverage:b21b995f-fde5-863f-8abd-693165d8079c

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

Contribution history

seq	event	detail
19261	APPENDED
19262	ACCEPT	AUTOMATIC_AFTER_VALIDATION
19277	LINK_EVIDENCE	by 1efd24fe (accepted)
24758	TASK_RESULT	by 1efd24fe (accepted)
25949	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "b21b995f-fde5-863f-8abd-693165d8079c",
  "links": [
    {
      "kept": "a71ba844-18b7-85b3-9bc9-b6e8c139f2f4",
      "link": "9cad4ae8-dba3-8168-bea4-9e69f58c11c5",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "f46f0870-06f1-817b-8500-1cb0156830f2",
      "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
    },
    {
      "link": "a71ba844-18b7-85b3-9bc9-b6e8c139f2f4",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "fa60f71f-c728-887d-8dbf-3ac0d72a1759",
      "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
    },
    {
      "link": "bc0d5315-157c-85a5-a535-2644de4a7bc7",
      "group": null,
      "reason": "non_directional",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "79a3bab2-0ede-89ac-b18e-7e2d6c69b7aa",
      "direction": "QUALIFY",
      "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": 25950,
  "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": [
        "9cad4ae8-dba3-8168-bea4-9e69f58c11c5",
        "a71ba844-18b7-85b3-9bc9-b6e8c139f2f4",
        "bc0d5315-157c-85a5-a535-2644de4a7bc7"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "2.000000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}