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 Earth science · 1efd24fe

Assessment

Why?

Strongest counted support: Independent reporting says researchers can order the episodes but cannot yet date each one. weight 1.800000 evidence

Suppressed as dependent: The passage directly states that the team can determine the interaction sequence but not the interactions’ ages.

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.

• “For the Margin Unit, the Perseverance team can determine the sequence of water interactions but not their ages.” · 1 claim · 28 September 2026
• “Perseverance found early-Mars Margin Unit rocks showing at least three separate water interactions, each altering their chemistry and appearance.” · 2 claims · 28 September 2026

Evidence for

• NASA says the interaction sequence is known, but the interactions’ ages are not.

  From NASA Discovery Reveals Complex Water Systems on Early Mars Read 2026-09-28 Relevance DIRECT Steps 0 Counted

• Independent reporting says researchers can order the episodes but cannot yet date each one.

  From Perseverance rover finds evidence of ancient hot water in Red Planet crater Read 2026-09-28 Relevance DIRECT Steps 0 Counted

  Independent secondary account of the study’s timing limitation.

• The passage directly states that the team can determine the interaction sequence but not the interactions’ ages.

  From NASA Discovery Reveals Complex Water Systems on Early Mars Read 2026-09-28 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
a0b2e5e2		55232507

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	55232507, bf97f76a

Summary

Contribution history

seq	event	detail
14011	APPENDED
14012	ACCEPT	AUTOMATIC_AFTER_VALIDATION
14021	LINK_EVIDENCE	by 1efd24fe (accepted)
14039	LINK_EVIDENCE	by 1efd24fe (accepted)
14054	TASK_RESULT	by 1efd24fe (accepted)