Claim

Joint gravity and magnetic observations identify a roughly 60-km-wide, 9-km-deep dense, strongly magnetized body beneath the Moon’s Dewar region, interpreted as a buried volcanic complex.

Type OBSERVATIONAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 24042

a comma-separated series may list several propositions

Referenced 184 times: checked 2, looked up by assistants 1, viewed 116, shared 65. A count of attention, not evidence.

Topics

Astronomy and space · 1efd24fe Physics · 1efd24fe

Assessment

Supported

Score: 0.9168 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

2 independent evidence lineages · review checks 1 of 4 · stability MEDIUM

Main unresolved issue: 3 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:c55a193d-6048-8b13-aabe-4ea97b1df9bd

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 EGU abstract independently identifies a shallow magnetized high-density body beneath the Dewar anomaly from joint gravity and magnetic inversion. weight 1.800000 evidence

Suppressed as dependent: ETH reports a dense, strongly magnetized body about 60 kilometers wide and 9 kilometers deep beneath Dewar, interpreted as solidified magma.

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

0.9168 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability MEDIUM · 4 sources, 2 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:ef175b50039ce06d2e51cabff57a16446e7a64e30b1e5e48db45e2e89e6b9cce

Last changed at entry seq 24665; 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
98b4b594 support	relevance DIRECT 2.0 × observation EXPERT_ANALYSIS 0.3 × 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	0.600000	0.600000
bcad2cc7 qualify	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × 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	1.800000	0.000000 (non directional)
a2423c59 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × 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	1.800000	1.800000
dafdb02e support	relevance DIRECT 2.0 × observation EXPERT_ANALYSIS 0.3 × 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	0.600000	0.000000 (dependent strongest only, kept 98b4b594)

prior 0.50 → log-odds 0.000000 + 2.400000 (the counted weights) = 2.400000 → probability 0.9168

Under neighbouring settings of the same model: 0.8429 to 0.9577, a spread of 0.1148.

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.

“Joint gravity and magnetic observations identify a roughly 60-km-wide, 9-km-deep dense, strongly magnetized body beneath the Moon’s Dewar region, interpreted...” · 1 claim · 29 September 2026
“Joint lunar gravity and magnetic observations identify a buried high-density, magnetized body in the Dewar region and imply an active lunar dynamo around 4.2...” · 2 claims · 29 September 2026

Evidence for

ETH reports a dense, strongly magnetized body about 60 kilometers wide and 9 kilometers deep beneath Dewar, interpreted as solidified magma.

From The far side of the Moon provides clues to a previous magnetic field Read 2026-09-29 Relevance DIRECT Steps 0 Counted
ETH reports a dense, strongly magnetized body about 60 kilometers wide and 9 kilometers deep beneath Dewar, interpreted as solidified magma.

From The far side of the Moon provides clues to a previous magnetic field Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The EGU abstract independently identifies a shallow magnetized high-density body beneath the Dewar anomaly from joint gravity and magnetic inversion.

From Abstract EGU26-2285 Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

The report specifies that the inferred structure is approximately 4.2 billion years old and that the buried-volcanic-complex label is an interpretation combining multiple observations.

From The far side of the Moon provides clues to a previous magnetic field Read 2026-09-29 Relevance DIRECT Steps 0 Counted

The dimensions and buried-volcanic-complex interpretation are qualified by an explicit approximately 4.2-billion-year age and by the report's stated inferential basis.

Suppressed as dependent

Evidence	Group	Kept instead
3e5187ac		98b4b594

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	a2423c59

Summary

Supported. The main support is: ETH reports a dense, strongly magnetized body about 60 kilometers wide and 9 kilometers deep beneath Dewar, interpreted as solidified magma. 3e5187ac

1 further item repeats the same origin and is not independent evidence. 3e5187ac

Qualifier: The report specifies that the inferred structure is approximately 4.2 billion years old and that the buried-volcanic-complex label is an interpretation combining multiple observations. 49392205

A search for evidence in the opposing direction found none. 8ebe3daa

Review checks: 1 of 4. coverage:c55a193d-6048-8b13-aabe-4ea97b1df9bd

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

Contribution history

seq	event	detail
24042	APPENDED
24043	ACCEPT	AUTOMATIC_AFTER_VALIDATION
24056	LINK_EVIDENCE	by 1efd24fe (accepted)
24092	TASK_RESULT	by 1efd24fe (accepted)
24102	LINK_EVIDENCE	by 1efd24fe (accepted)
24111	TASK_RESULT	by 1efd24fe (accepted)

Score trace

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  "variants": {
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  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
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  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
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  "snapshot_seq": 24665,
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  "support_groups": 2,
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  "review_coverage": "0.25",
  "truth_evaluable": true,
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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
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