NSk--Ontology organises the language of the NSk/psi program as a map of basic concepts, characteristic mechanisms and priority scope. Its central object is existence density on a distinguishability carrier, with probability treated as a secondary readout of windows, branches, outcomes or blocks. The ontology describes FirstCut and the REAL regime, fractogenesis, physicality as an activation gate, randomness as branch selection after scale transitions, ScaleGenesis as the passage from order to a legal physical scale, materialisation as P=1 closure in a window, VisGeom as source/readout separation for mass, and gravity as graph drift of the existence field. The document also exposes characteristic elements of the reference realisation: the q3D torus, the natural helical latch, seven executable strands, the 4+3 channel block, the EXEC 5/8 attractor, spectral band entropy with half-slope 1/2, projective spectral windows, the band-algebra port and controlled mathematics--physics--EXEC correspondence. Proofs, logical status and exports remain in the corresponding owner modules.
Nowak et al. (Fri,) studied this question.