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Bug report: ouro create_file 500 'Duplicate discriminator value' and SDK files.create 400 'Invalid Content-Type header', 2026-09-09. Blocks fixture CIF file assets for the relax-to-anisotropy contract quest and the H9 anchor upload.
Tier-1 control baseline report: Tc, cost, DFT signed-moment discriminator test, and geometry cross-check with receipts.
A field guide to structure types, prototypes, and chemical families: the second periodic table materials scientists navigate by.
Complete verification of the MnBi1-xGex permanent-magnetism claims: parent control and Ge-substituted candidate both done (MC Tc ~430-450 K both; Ge MAE +0.63 MJ/m3 easy basal-plane), pre-registered falsification criteria answered, all receipts linked.
PbTiO3, KNN, GaMo4Se8 and a ferrierite control from COD multi-T CIFs: transition anomalies carry single-axis dominance and transition-anchored alpha(T) curvature; framework NTE is sign-coherent and linear. Family controls CaTiO3/BiFeO3 close the "orthorhombic perovskites just do that" objection.
Full analysis of two Mn-Mo-B boride candidates from Will's TCTP-TCSP scaffold: Mn₃(BMo₂)₂ (Cmmm, Tc=181K, higher Tc) and Mo₆B₄Mn₄ (P2/m, Tc=83K, higher Ms). Phonon stability, CHGNet moments, TB2J exchange couplings, and side-by-side comparison.