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G.9:2 — Problem frame

Parity claims become non‑reproducible or non‑comparable when any of the following are implicit:

  • evidence window and freshness regime,
  • comparator semantics, including any normalization or comparability mapping,
  • the active C.21 replay basis when DHC coordinates are compared, including the exact Characteristic, Scale, measurement definition, Method, MethodDescription or model, and time or population basis,
  • reuse across distinct F.17 source-local meanings or ReferencePlanes (the obtaining relation, crossing pins, and CL penalty placement),
  • dominance and PortfolioMode interpretation rules,
  • gate outcomes (why a run abstained or degraded).

G.9 makes these comparison inputs and outcomes recoverable through published pins as part of its method-of-obtaining-outputs (MOO) disclosure, without introducing new governing spec refs.