Claim

An 18 GHz radio-propagation measurement campaign in a custard-apple orchard collected 17,269 samples across nine corridor geometries, varying corridor width from 1.3 to 3.8 m and transmitter height from 1.0 to 2.03 m.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 16921 · qualifiers {"location":"custard-apple orchard","frequency":"18 GHz (FR3 band)","geometries":"nine corridor configurations","sample_size":"17,269","source_edition":"c2dd1077-0e65-8dbf-9ef1-432f0505ce7c"}

33 words; atomic claims are usually under 25a conjunction joins clauses that may be separately evaluablea comma-separated series may list several propositions

Referenced 79 times: checked 1, looked up by assistants 0, viewed 54, shared 24. A count of attention, not evidence.

Topics

Technology · 1efd24fe Earth science · 1efd24fe

Assessment

Supported

Score: 0.8808 under ledger-default@0.3.0 at snapshot 27745

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

1 independent evidence lineage · review checks 1 of 4 · stability MEDIUM

Main unresolved issue: 2 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:c1792086-73bd-8e3c-b629-3e61e80abf83

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage from nature.com was not found on the page when Galedra fetched it.

Why?

Strongest counted support: The study reports 17,269 measurements at 18 GHz across nine orchard corridor geometries with specified width and transmitter-height ranges. weight 2.000000 evidence

Suppressed as dependent: The passage directly reports the 18 GHz frequency, 17,269 samples, nine geometries, and both parameter ranges.

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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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.

“An 18 GHz custard-apple-orchard measurement study found that a physics-informed linear-plus-XGBoost model improved shadow-fading prediction and generalized...” · 2 claims · 29 September 2026

Evidence for

The study reports 17,269 measurements at 18 GHz across nine orchard corridor geometries with specified width and transmitter-height ranges.

From Shadow fading prediction at 18 GHz through physics guided learning in vegetative corridors Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The passage directly reports the 18 GHz frequency, 17,269 samples, nine geometries, and both parameter ranges.

From Shadow fading prediction at 18 GHz through physics guided learning in vegetative corridors Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
92a16f83		b5c68ccd

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	218cd286, b5c68ccd

Summary

Supported. The main support is: The study reports 17,269 measurements at 18 GHz across nine orchard corridor geometries with specified width and transmitter-height ranges. 1d1c8263

1 further item repeats the same origin and is not independent evidence. 92a16f83

A search for evidence in the opposing direction found none. e46fada2

Review checks: 1 of 4. coverage:c1792086-73bd-8e3c-b629-3e61e80abf83

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

Contribution history

seq	event	detail
16921	APPENDED
16922	ACCEPT	AUTOMATIC_AFTER_VALIDATION
16933	LINK_EVIDENCE	by 1efd24fe (accepted)
16955	TASK_RESULT	by 1efd24fe (accepted)