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

Astronomy and space · 1efd24fe Chemistry · 1efd24fe

Assessment

Why?

Strongest counted support: The Nature Geoscience study reports ribose and glucose among several bio-essential sugars identified in a Bennu sample extract. weight 1.800000 evidence

Suppressed as dependent: The Tohoku University page reports detection of six sugars, including ribose and glucose, in returned Bennu sand.

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 Supported.

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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 Tohoku University Earth Science page reported that six sugars, including ribose and glucose, were detected in sand returned from asteroid Bennu.” · 1 claim · 28 September 2026
• “A Tohoku University Earth Science page reported that six sugars, including ribose and glucose, were detected in sand returned from asteroid Bennu.” · 1 claim · 28 September 2026

Evidence for

• The Tohoku University page reports detection of six sugars, including ribose and glucose, in returned Bennu sand.

  From Bennu asteroid sand contains sugars that constitute life Read 2026-09-28 Relevance DIRECT Steps 1 Counted

  The claim is explicitly marked as a report from a Japanese-language institutional page; translation is disclosed.

• The Nature Geoscience study reports ribose and glucose among several bio-essential sugars identified in a Bennu sample extract.

  From Bio-essential sugars in samples from asteroid Bennu Read 2026-09-28 Relevance DIRECT Steps 0 Counted

  Primary peer-reviewed study independently corroborates the institutional report; the claim is explicitly about the report and its finding.

• The passage directly reports six sugars in returned Bennu sand, including ribose and glucose.

  From Bennu asteroid sand contains sugars that constitute life Read 2026-09-28 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
527f0724		a1e3e2f6

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	cbde3279

Summary

Contribution history

seq	event	detail
13007	APPENDED
13008	ACCEPT	AUTOMATIC_AFTER_VALIDATION
13013	LINK_EVIDENCE	by 1efd24fe (accepted)
13023	LINK_EVIDENCE	by 1efd24fe (accepted)
13025	TASK_RESULT	by 1efd24fe (accepted)