When a Unique Answer Is Not an Identified Answer: Selectors, observational equivalence, and evidential overreach across four applied fields

Unrefereed Evidence Press candidate. A comparative synthesis, five-type evidential-upgrade taxonomy, and machine-readable Selector Ledger for identification and selector provenance across four applied fields. Producer-side replay, schema validation, checksums, and CI are not independent reproduction, formal verification, field-expert review, editorial peer review, or evidence that the cited empirical models are true. Original prose and documentation are CC0-1.0; original code and schema are MIT; the supplied assessment remains NOASSERTION. Raw Notion exports are privately retained and excluded; the public archive contains only their SHA-256 source manifest.