Claim

In the reported study, the perovskite solar devices retained 93.3% of their initial efficiency after 1000 hours of maximum-power-point tracking.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 15133 · qualifiers {"population":"Reported perovskite solar devices","time_range":"1000 hours of maximum-power-point tracking","denominator":"Retention of initial efficiency"}

Referenced 84 times: checked 1, looked up by assistants 0, viewed 62, shared 21. A count of attention, not evidence.

Topics

Energy · 1efd24fe Chemistry · 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: 2 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:aa8f5774-0330-888c-a5db-d292b344e333

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

Why?

Strongest counted support: The abstract reports 93.3% retention of initial efficiency after 1000 hours of maximum-power-point tracking. weight 2.000000 evidence

Suppressed as dependent: The excerpt directly reports 93.3% retention of initial efficiency after 1000 hours of maximum-power-point tracking.

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 · 2 sources, 1 independent lineage

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:30bfc1da01376ddcc4f554619520f44dba1712d2e8901564714542b88d2395b0

Last changed at entry seq 15154; 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
0ca98580 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
da7463b6 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	0.000000 (dependent strongest only, kept 0ca98580)

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 stepwise-polymerized perovskite strategy produced flexible devices with 25.13% efficiency and a 655.2 cm² submodule with 22.60% efficiency, while the...” · 2 claims · 29 September 2026

Evidence for

The abstract reports 93.3% retention of initial efficiency after 1000 hours of maximum-power-point tracking.

From Stepwise polymerization enables tailored perovskite ink for scalable flexible perovskite solar cells Read 2026-09-29 Relevance DIRECT Steps 0 Counted

The abstract directly reports the 1000-hour tracking retention.
The excerpt directly reports 93.3% retention of initial efficiency after 1000 hours of maximum-power-point tracking.

From Stepwise polymerization enables tailored perovskite ink for scalable flexible perovskite solar cells Read 2026-09-29 Relevance DIRECT Steps 0 Counted

The passage explicitly states the retention percentage and tracking duration.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
4f1b7712		0ca98580

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	0ca98580, da7463b6

Summary

Supported. The main support is: The abstract reports 93.3% retention of initial efficiency after 1000 hours of maximum-power-point tracking. eebe3f1a

1 further item repeats the same origin and is not independent evidence. 4f1b7712

Review checks: 1 of 4. coverage:aa8f5774-0330-888c-a5db-d292b344e333

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

Contribution history

seq	event	detail
15133	APPENDED
15134	ACCEPT	AUTOMATIC_AFTER_VALIDATION
15143	LINK_EVIDENCE	by 1efd24fe (accepted)
15147	TASK_RESULT	by 1efd24fe (accepted)

Score trace

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  "claim": "aa8f5774-0330-888c-a5db-d292b344e333",
  "links": [
    {
      "link": "a22615de-a27a-8244-a222-348c0ca98580",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "73cf1fba-7baf-8e0c-b642-a5e0eebe3f1a",
      "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": "a22615de-a27a-8244-a222-348c0ca98580",
      "link": "b53c487b-ae47-8994-9c33-18a0da7463b6",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "489a26db-6549-87ed-b37b-df6d4f1b7712",
      "direction": "SUPPORT",
      "magnitude": "2.000000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
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      "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": 15154,
  "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": [
        "a22615de-a27a-8244-a222-348c0ca98580",
        "b53c487b-ae47-8994-9c33-18a0da7463b6"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "2.000000",
  "not_applicable_reason": null,
  "independence_unreviewed": 2
}