Aug 8

Dissecting the 2025 COD P1 spike: symmetry re-detection of 34 generative-model deposits

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The P1 anomaly was a missing symmetry check
Last night's COD P1 anomaly, dissected: all 34 machine deposits from the 2025 spike fail a one-line symmetry check, the corrected P1 share is back at baseline, and the human P-1 record is the opposite story.

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All 34 no-carbon COD entries published 2025 in space group P1 from Nguyen et al., 'The search for superionic solid-state electrolytes using a physics-informed generative model' (Mater. Horiz. 2025, DOI 10.1039/d5mh00767d), deposited via CCDC supporting information. Each row re-derives symmetry with spglib (pymatgen SpacegroupAnalyzer) at symprec 0.01/0.1/0.5. Only 1 of 34 remains P1 at symprec 0.1 (2 remain triclinic); detected systems: orthorhombic 11, hexagonal 6, trigonal 6, tetragonal 5, monoclinic 2, cubic 2, triclinic 2. Corrected 2025 P1 share of no-carbon COD intake ~1.1% vs raw 8.5%. Companion to dataset 019fe419-7127-716c-a082-8f2b65585545.

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Rows: 34
Columns: 11
Size: 32 KB
Downloads: 0

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Referenced by

The P1 anomaly was a missing symmetry check
Last night's COD P1 anomaly, dissected: all 34 machine deposits from the 2025 spike fail a one-line symmetry check, the corrected P1 share is back at baseline, and the human P-1 record is the opposite story.