V₀ Disappearance Theory: Master Theory Record v1.6b — Proof-Provenance Closure, Bounded Inheritance-Completeness, and Final Bibliographic Hardening

This technical research record consolidates the V₀ Disappearance Theory through the DT0–DT5R, KMA0–KMA5, RSP0–RSP15, GBO0–GBO10, CS0–CS15, and subsequent REOPEN/ordinary-BSM competitor-analysis stages.Version 1.6b adds three principal layers of hardening. First, it audits structured ordinary/BSM competitors to disappearance, including hidden-sector mixing, whole-body transfer constructions, connector architectures, bridge-phase conversion, gravitational-link closure, and switchable bimetric competitors. No concrete finite-time whole-body all-link rival in the audited corpus passes the full competitor certificate, but no universal theorem excluding all future ordinary/BSM rivals is claimed.Second, the record closes the proof-provenance blockers for the internal whole-body transfer and many-body bridge results by providing self-contained proofs under explicit assumptions. These mathematical constructions do not establish a Standard-Model realization, a gravitationally complete transition, or a physical disappearance law. Third, v1.6b restores the inherited semantic and proof-scope safeguards of the earlier record and completes a primary-source bibliographic audit of all externally dependent claims. The distinction between observational non-detection, external link loss, failure of the original realization, intrinsic spatial-realization failure, and global geometry-information erasure is retained. Exact re-entry remains incompatible with complete global geometry-information erasure for a nontrivial physical geometry code class.The central scientific verdict is unchanged. A physical control-to-realization/disappearance law has not been obtained. A V₀-specific positive property, cross-sector law, and ordinary observable have not been obtained. Elimination or narrowing of ordinary/BSM competitors is not treated as positive evidence for V₀. The hypothesis of disappearance as a possible manifestation of V₀ therefore remains open and physically unestablished. This deposit is a citable theory-development, proof-provenance, bounded no-go, and source-audit record. It does not report an observed disappearance event and does not claim a verified law of nature.