Orb-relaxed Fe48 B22 boride candidate. CIF SHA256 985ffd62f055738af488251b67b76778a5f0b12fcdce4f282869144fe3b5d55c. 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 Known C16 parent; research-led Co/Re filling. Vacancy derivatives are authored, unvalidated hypotheses.: https://doi.org/10.1103/PhysRevB.92.174413. Known scaffold reference https://aflow.org/p/A2B_tI12_140_h_a-001/; authored-parent input SHA256 93d730a4d151b2c8d5c8a1441942192a30e5aaf6f742366a76a07f53b89cd658. Terms: Public AFLOW prototype reference; attribution retained.. Published parent framework; the authored mutation is not an experimentally established material.