https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/Head https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/assertion https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/provenance https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/pubinfo https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/assertion https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test http://purl.org/dc/terms/description No analysis was run. The file inventories and README files of the two candidate Dryad datasets were examined via the Dryad API (datasets endpoint and /files listing) and the README of dryad.z8w9ghxmw was read. Neither contains 3-D geometry of bee-built cell bases: dryad.z8w9ghxmw (Peleg lab, 19.2 GB) holds X-ray microscopy of comb built on 3-D-printed plastic foundation frames, whose cell bases are the printed plastic, plus cell-size tables and cell tilt angles; dryad.r4xgxd2f3 (Yang 2022) holds cell orientation (in-plane rotation) angles and cell counts of natural combs in spreadsheets, with no basal geometry. MorphoSource and other scan repositories require a login. No other public micro-CT or 3-D scan of natural comb was located. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/delphi/ontology/Assessment https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test http://www.w3.org/2000/01/rdf-schema#comment Measured: undefined undefined. Interpretation: Thompson's claim has two parts: a geometric description of the cell (hexagonal prism, three rhombic basal facets meeting at the tetrahedral angle 109 deg 28 min) and a minimal-surface rationale. Only the geometric description is tested here; the minimal-surface statement is a theorem about the rhombic dodecahedron (and is in fact not the true minimum, as Toth 1964 showed), not an empirical matter. The test requires 3-D geometry of bee-built cell bases. The two Dryad datasets listed were identified as the only public comb datasets found on Dryad, Zenodo and figshare on 2026-10-31; their README files were read to determine whether they contain basal-facet geometry before any data were downloaded. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test http://www.w3.org/2000/01/rdf-schema#label Claim test of thompson1917-ch07-11: inconclusive, confidence 0 https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test http://www.w3.org/2000/01/rdf-schema#seeAlso https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/thompson-growth-form/thompson1917-ch07-11/result.json https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test http://www.w3.org/ns/prov#wasAttributedTo https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/admissibleDatasets Planned datasets: dryad-z8w9ghxmw-honeybee-adaptive-comb-construction-xrm, dryad-r4xgxd2f3-yang-2022-natural-comb-cell-orientation https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/assessmentType claim-test/0.1.0 https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/dataKind none https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/disconfirmingObservation Pre-registered. Refuted if the median apex angle differs from 109.47 degrees by more than 6 degrees (e.g. if bases are rounded or formed of a single curved surface with no three-facet structure in the majority of cells), or if fewer than half of the cells show three identifiable planar basal facets. Results in between are 'mixed'. If no public 3-D data of bee-built cell bases can be obtained, the verdict is inconclusive with reason data-unavailable. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/evidenceAgainst Dryad file inventory for doi:10.5061/dryad.r4xgxd2f3 on 2026-10-31: README_file.txt and five spreadsheets of cell orientation angles and cell numbers for Eastern and Western honey bee combs; no 3-D data. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/evidenceAgainst Dryad file inventory for doi:10.5061/dryad.z8w9ghxmw on 2026-10-31: s_1_raw_xrm_data.zip (11.99 GB), processed_XRM_data.zip (6.88 GB), 3D_reconstruction_movies.zip (220 MB), 2D_images.zip (61 MB), cell_size_data.zip, angle_data.zip (cell tilt angles only), angle_raw_data.zip, figure data zips, README.md (file id 4176003). The README states the comb was built on 3-D-printed foundation frames of varying cell size, so the cell bases are not bee-built and cannot test the rhombic-cap geometry. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The claim remains testable: a micro-CT of foundationless natural comb (or Toth-style measurements of the three basal rhombi) would resolve it with the pre-registered criteria above. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/expectedObservation Pre-registered. From a public micro-CT or 3-D scan of natural (foundationless) worker comb, fit planes to the three basal facets of each measurable cell and compute the rhombus obtuse angle at the apex of the base. The claim is supported if the median apex angle over >= 20 cells lies within 109.47 +/- 3 degrees and the facet-plane fit residuals are small relative to wall thickness (planar facets), with the prismatic walls meeting at 120 +/- 5 degrees in cross-section. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/failCriterion Pre-registered. Refuted if the median apex angle differs from 109.47 degrees by more than 6 degrees (e.g. if bases are rounded or formed of a single curved surface with no three-facet structure in the majority of cells), or if fewer than half of the cells show three identifiable planar basal facets. Results in between are 'mixed'. If no public 3-D data of bee-built cell bases can be obtained, the verdict is inconclusive with reason data-unavailable. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/hasConfidence 0 https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/hasEvidence http://www.w3.org/1999/02/22-rdf-syntax-ns#nil https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/hasVerdict inconclusive https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/hypothesis If a hive-bee comb cell is a hexagonal prism closed by three rhombic facets of a rhombic dodecahedron, then in 3-D measurements of bee-built cell bases (not foundation-formed bases) the three basal facets must be planar rhombi meeting pairwise at dihedral angles close to 120 degrees, with each rhombus having obtuse angles close to 109 degrees 28 minutes (arccos(-1/3)) and acute angles close to 70 degrees 32 minutes. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/inferenceMethod No analysis was run. The file inventories and README files of the two candidate Dryad datasets were examined via the Dryad API (datasets endpoint and /files listing) and the README of dryad.z8w9ghxmw was read. Neither contains 3-D geometry of bee-built cell bases: dryad.z8w9ghxmw (Peleg lab, 19.2 GB) holds X-ray microscopy of comb built on 3-D-printed plastic foundation frames, whose cell bases are the printed plastic, plus cell-size tables and cell tilt angles; dryad.r4xgxd2f3 (Yang 2022) holds cell orientation (in-plane rotation) angles and cell counts of natural combs in spreadsheets, with no basal geometry. MorphoSource and other scan repositories require a login. No other public micro-CT or 3-D scan of natural comb was located. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/passCriterion Pre-registered. From a public micro-CT or 3-D scan of natural (foundationless) worker comb, fit planes to the three basal facets of each measurable cell and compute the rhombus obtuse angle at the apex of the base. The claim is supported if the median apex angle over >= 20 cells lies within 109.47 +/- 3 degrees and the facet-plane fit residuals are small relative to wall thickness (planar facets), with the prismatic walls meeting at 120 +/- 5 degrees in cross-section. https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/delphi/ontology/preregistered false https://w3id.org/delphi/resource/claim/thompson1917-ch07-11 https://w3id.org/delphi/ontology/hasAssessment https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/provenance https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.w3.org/ns/prov#SoftwareAgent https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 http://www.w3.org/2000/01/rdf-schema#label delphisci claim tester (claude-fable-5.1; cursor/thompson-claim-tests-cf12) https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 http://www.w3.org/ns/prov#actedOnBehalfOf https://orcid.org/0009-0007-4948-9192 https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 https://w3id.org/delphi/ontology/usesModel https://w3id.org/delphi/resource/model/claude-fable-5-1 https://w3id.org/delphi/resource/model/claude-fable-5-1 http://purl.org/dc/terms/identifier claude-fable-5.1 https://w3id.org/delphi/resource/model/claude-fable-5-1 http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/delphi/ontology/LanguageModel https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/assertion http://www.w3.org/ns/prov#wasAttributedTo https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/assertion http://www.w3.org/ns/prov#wasDerivedFrom https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/thompson-growth-form/thompson1917-ch07-11/result.json https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/assertion http://www.w3.org/ns/prov#wasGeneratedBy https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/test https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/plan http://www.w3.org/ns/prov#hadPlan https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/README.md https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/test http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.w3.org/ns/prov#Activity https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/test http://www.w3.org/ns/prov#qualifiedAssociation https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/plan https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/test http://www.w3.org/ns/prov#wasAssociatedWith https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/pubinfo https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://purl.org/dc/terms/created 2026-11-08T16:24:31.903Z https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://purl.org/dc/terms/creator https://orcid.org/0009-0007-4948-9192 https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://purl.org/dc/terms/license https://creativecommons.org/licenses/by/4.0/ https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://purl.org/nanopub/x/hasNanopubType https://w3id.org/delphi/ontology/Assessment https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://purl.org/nanopub/x/introduces https://w3id.org/delphi/resource/assessment/thompson1917-ch07-11--claim-test https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I http://www.w3.org/2000/01/rdf-schema#label Claim test of thompson1917-ch07-11: inconclusive, confidence 0 https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I https://w3id.org/delphi/ontology/domain https://w3id.org/delphi/resource/domain/thompson-growth-form-1917 https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/sig http://purl.org/nanopub/x/hasAlgorithm RSA https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/sig http://purl.org/nanopub/x/hasPublicKey MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/sig http://purl.org/nanopub/x/hasSignature n/+Pt485KtFfqi3b1NqeLZ7nqFb3FFePPF+arx3KVLVPcsfrn015u4fjZIaWIxJubwwMIfRbhXdl77mbRAmb63zmv7WcO2htC1VQEqX7iM8G93WCgG0gLd6F3TOH42K6lMQsuKXs4ih+fjxhcLUfSAr9+bg4A2zCgBgNlAT6DCvAxMwo1KT6Kl/xksnVDSMKJ6t3lFNXaeGobvjqg0p8fSdARlGq9GHRC1mEfI5cL6B5tVLhXNhYIJqCsdWJNHD830MGbgT2JXnoY5lOMIDbmfozIYdYZ1RhkSmF89FMygQXfoUZKnjcG14r0syC7ir7VgERHinVWW/TdDiU6eZG/w== https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/sig http://purl.org/nanopub/x/hasSignatureTarget https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I https://w3id.org/np/RAaBHE68WAudrnQb3B7QfPw2b0iSLaEj5oWhnMzmOC40I/sig http://purl.org/nanopub/x/signedBy https://orcid.org/0009-0007-4948-9192