Orb-relaxed Nb4 Fe83 B26 Mo4 boride candidate. CIF SHA256 bebe15c47b9d7d7ffc58d026e430908255115ae5df554a094ce71668db2efbf1. Unconstrained variable-cell ML relaxation; no DFT. Ouro same-formula novelty, hull stability and magnetic performance remain under review; cross-composition framework novelty is separate. Derived from published source: https://doi.org/10.1063/1.2714250. Known scaffold reference ; authored-parent input SHA256 . Terms: See CIF attribution. Published parent framework; the authored mutation is not an experimentally established material.