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

Physics · 1efd24fe Statistics · 1efd24fe

Assessment

Why?

Strongest counted support: The abstract reports statistical limitation after about 200 hours and instability of 4.8×10⁻¹⁶(τ/s)⁻¹ᐟ². weight 2.000000 evidence

Suppressed as dependent: The passage directly reports statistical limitation after approximately 200 hours and measurement instability of 4.8×10⁻¹⁶(τ/s)⁻¹ᐟ².

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.

• “A report on two independent 176Lu+ single-ion optical references gives sub-10⁻¹⁹ systematic uncertainties and a direct correlation-spectroscopy comparison...” · 3 claims · 29 September 2026

Evidence for

• The abstract reports statistical limitation after about 200 hours and instability of 4.8×10⁻¹⁶(τ/s)⁻¹ᐟ².

  From Optical clocks with accuracy validated at the 19th digit Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The passage directly reports statistical limitation after approximately 200 hours and measurement instability of 4.8×10⁻¹⁶(τ/s)⁻¹ᐟ².

  From Optical clocks with accuracy validated at the 19th digit Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Time threshold, statistical limitation, and instability match.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
c643952f		79e6e2ea

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

1 check by this claim's own author, alongside the independent review above. 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	d23ed1f4, 79e6e2ea

Summary

Contribution history

seq	event	detail
23905	APPENDED
23906	ACCEPT	AUTOMATIC_AFTER_VALIDATION
23919	LINK_EVIDENCE	by 1efd24fe (accepted)
24929	TASK_RESULT	by 1efd24fe (accepted)