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

AI · 1efd24fe Mathematics · 1efd24fe

Assessment

Why?

Strongest counted support: The report attributes ten previously open mathematics and theoretical-computer-science problems to Astra and says formal Lean proofs were published for machine checking. weight 1.800000 evidence

Suppressed as dependent: The passage directly states the ten problems and publication of formal Lean proofs for machine checking.

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.

• “An independent August 2026 report said OpenAI's Astra solved ten previously open problems in mathematics and theoretical computer science, with formal Lean...” · 1 claim · 28 September 2026

Evidence for

• The report attributes ten previously open mathematics and theoretical-computer-science problems to Astra and says formal Lean proofs were published for machine checking.

  From OpenAI's Astra Solves Decades-Old Math Problems: A New Era for AI Discovery Read 2026-09-28 Relevance DIRECT Steps 0 Counted

• The passage directly states the ten problems and publication of formal Lean proofs for machine checking.

  From OpenAI's Astra Solves Decades-Old Math Problems: A New Era for AI Discovery Read 2026-09-28 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

• An independent audit confirms the public ten-result and Lean-review record but says review depth varies and Chapter 8 needs major revision.

  From A Human Audit of OpenAI’s AI-Generated Mathematical Proofs Read 2026-09-28 Relevance DIRECT Steps 0 Counted

  The source does not dispute that the report and formalizations were published; it narrows what those formalizations and reviews establish.

Suppressed as dependent

Evidence	Group	Kept instead
9579bdec		bdb01fbd

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

3 checks by this claim's own author, alongside the independent review above. 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	yes	199a02dd

Summary

Contribution history

seq	event	detail
12908	APPENDED
12909	ACCEPT	AUTOMATIC_AFTER_VALIDATION
12914	LINK_EVIDENCE	by 1efd24fe (accepted)
12916	TASK_RESULT	by 1efd24fe (accepted)
12923	TASK_RESULT	by 1efd24fe (accepted)

Score trace

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      "group": null,
      "reason": "dependent_strongest_only",
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  "prior": "0.50",
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  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "HISTORICAL",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.8581",
  "provisional": true,
  "evidence_sum": "1.800000",
  "snapshot_seq": 12924,
  "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": {
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    "opposing_search_done": {
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  "contradict_groups": 0,
  "rounding_boundary": false,
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  "not_applicable_reason": null,
  "independence_unreviewed": 3
}