Orb-relaxed Sm8 Fe88 B8 boride candidate. CIF SHA256 eceb992f21e3c931fbe20159aeca9c3a330d64ea876bf65d6d8ab34654982d28. 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. GPAC-authored complete Fe4-orbit vacancy on an existing Nd/Sm directional B-pair-vacancy support. The computational Y2Fe23B3 archive is the attributed ancestor; this ordered vacancy candidate is hypothetical, not a published experimental phase. Known cubic ancestry remains explicit; occupied-framework novelty is unresolved and no source magnetic property is transferred. Ordered Fe4 vacancies on the existing tetragonal directional B-pair-vacancy derivative of the computational Y2Fe23B3 archive. The cubic parent metal ancestry remains explicit. Removing one complete four-site Fe orbit creates R8Fe88B8 occupied supports; three vacancy patterns and two rare-earth fillings are proposed. These are hypothetical descendants, not published experimental phases or newly established parent families. Source: https://doi.org/10.1103/PhysRevB.70.144107