@prefix this: . @prefix sub: . @prefix np: . @prefix rdf: . @prefix prov: . @prefix npx: . @prefix dc: . @prefix xsd: . sub:Head { this: a np:Nanopublication; np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo . } sub:assertion { a ; dc:description "Median cell edge a over COD entries with formula Cl Na in Fm-3m passing the ambient filter; d(200) = a/2 compared with the claimed 2.81 angstrom."; "Measured: 2.83175 d(200) of NaCl, median over ambient Fm-3m COD cells (angstrom) (n = 35). Interpretation: Bragg's 2.81 came from the density, the molecular weight and an estimate of the hydrogen atom's mass; the modern cell comes from diffraction against a known wavelength. The test is of the number, not the method."; "Claim test of bragg1915-01: supports, confidence 0.9"; ; prov:wasAttributedTo ; "Planned datasets: cod-search-api"; "claim-test/0.1.0"; "physical"; "Relative difference above 0.03: refutes. Between 0.01 and 0.03: mixed. Fewer than 3 qualifying entries: inconclusive."; "A thermal-expansion series with empty celltemp fields inflates the median a to 5.66 angstrom (room temperature 5.640); the verdict does not depend on it."; "Median a over COD entries with formula Cl Na, space group F m -3 m, ambient conditions as above, Z = 4: |2.81 - a/2| / (a/2) < 0.01: supports."; "Relative difference above 0.03: refutes. Between 0.01 and 0.03: mixed. Fewer than 3 qualifying entries: inconclusive."; "0.9"^^xsd:double; ; "supports"; "If the spacing of the cube-face planes of rock salt is 2.81 x 10^-8 cm, modern refinements of NaCl at ambient conditions give d(200) = a/2 within one per cent of 2.81 angstrom."; "Median cell edge a over COD entries with formula Cl Na in Fm-3m passing the ambient filter; d(200) = a/2 compared with the claimed 2.81 angstrom."; "Median a over COD entries with formula Cl Na, space group F m -3 m, ambient conditions as above, Z = 4: |2.81 - a/2| / (a/2) < 0.01: supports."; "true"^^xsd:boolean . . a ; dc:description ""; dc:license "CC0 (COD data are public domain)"; "Dataset: Crystallography Open Database (COD) search API and CIF files"; prov:atLocation ; prov:wasDerivedFrom ; "sha256:8dd722386f6120e5234e7ea64cde68e5cd796094c31db425520bb93e5160b8c0" . } sub:provenance { a prov:SoftwareAgent; "delphisci claim tester (claude-fable-5.1; crystals-and-form-tests-1)"; prov:actedOnBehalfOf ; . a ; dc:identifier "claude-fable-5.1" . sub:assertion prov:wasAttributedTo ; prov:wasDerivedFrom ; prov:wasGeneratedBy sub:test . sub:plan prov:hadPlan . sub:test a prov:Activity; prov:qualifiedAssociation sub:plan; prov:wasAssociatedWith . } sub:pubinfo { this: dc:created "2026-11-08T16:24:31.803Z"^^xsd:dateTime; dc:creator ; dc:license ; npx:hasNanopubType ; npx:introduces ; "Claim test of bragg1915-01: supports, confidence 0.9"; . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB"; npx:hasSignature "HsvQpveflptuYvFhotgpWJeubBUxAZQiU4pdRv1qB1mZ8r4tTV1ok0565wZijyg4mruliVTweiYii+waXAQB6jwff0UctZuifQzHU96IVuZdIkyJqfQTvUl7sJowhTbnsJzGiEm59E4+0g0yv3myW3c9CHyP6oxCbLVRmp3BJmRSdmBiHWiX8Q9pfwze4CrCtmDLMItlK7qAAi/OTKY//ZSRnB8+tpsa57FCEKFMHDGrMLmKxDlPU3O/UIA3wKXD5gd6JpcZh+Uiwn1iWUdHASS0OPdevfwuCPEqaTnl9jvtYBU9fIa4AAMhutKuP7ufC+GBhEQVO3XlMz9nR7lpYg=="; npx:hasSignatureTarget this:; npx:signedBy . }