Substrate Integrity: Corrupted Observation, Update Drift, and the Loss of the Right to Trust Output in High-Consequence and Decision-Bearing Systems

This release is a separate doctrinal specification related to the canonical baseline publication of the Applicability Boundary Doctrine, the earlier doctrinal extension on observation validity, interpretation cutoff, and bounded reality verification, the separate doctrinal specification on epistemic applicability, the separate doctrinal specification on reality verification, and the separate doctrinal specification on approval-execution separation. This record should be read alongside the canonical Applicability Boundary Doctrine, DOI: 10.5281/zenodo.19425317, the earlier related doctrinal extension, DOI: 10.5281/zenodo.19443895, the separate doctrinal specification on epistemic applicability, DOI: 10.5281/zenodo.19447536, the separate doctrinal specification on reality verification, DOI: 10.5281/zenodo.19457414, and the separate doctrinal specification on approval-execution separation, DOI: 10.5281/zenodo.19462291.It is a separate record and not a version of any prior publication. It formalizes an earlier doctrinal question within the same authored framework: when does a system lose the right to trust its own output because the computational, observational, or toolchain substrate is no longer sufficiently intact for consequence-bearing use? This release should be understood as sequentially earlier than observation validity, epistemic applicability, reality verification, approval-execution separation, the applicability boundary, and continuation legitimacy. In doctrinal order, substrate integrity, observation validity, epistemic applicability, reality verification, approval-execution separation, applicability boundary, and continuation legitimacy are sequential rather than interchangeable conditions. The release focuses on high-consequence and decision-bearing systems in which a system may remain powered, responsive, and apparently functional while the substrate required to trust its outputs has already become corrupted, drifted, weakened by a critical bottleneck, or materially amplified through multi-agent propagation. Its purpose is doctrinal and analytical. It is intended as a citable public reference for continued work on:- substrate integrity- corrupted observation- update drift- toolchain mutation- trusted observation path- weak-link dominance- multi-agent error amplification- loss of the right to trust output This release deepens the authored doctrinal framework. It does not replace the canonical baseline publication, the earlier doctrinal extension, the separate doctrinal specification on epistemic applicability, the separate doctrinal specification on reality verification, or the separate doctrinal specification on approval-execution separation. It has independent citation value as a separate doctrinal specification within the same authored framework. No implementation guidance is provided in this release. No executable architecture, runtime enforcement design, hardware blueprint, redundancy architecture, error-correction scheme, attestation model, observability platform, supply-chain verification system, multi-agent coordination method, cryptographic protocol, operational procedure, algorithmic method, deployment pattern, or integration recipe is disclosed. The publication is limited to doctrinal articulation, evidentiary framing, legitimacy analysis, and boundary clarification. Derivative interpretation, structurally similar reframing, internal reconstruction, selective reuse, or downstream implementation based on this release does not inherit authorship, originality, canonical standing, or independent evidentiary standing. No patent license or implied commercial implementation right is granted by this release. Commercial implementation, operational integration, productization, assurance packaging, certification use, or other consequence-bearing application of the framework requires separate written permission or license from the author unless independently established without reliance on this authored framework. This release should be read alongside the canonical baseline doctrine, the earlier related doctrinal extension, the separate doctrinal specification on epistemic applicability, the separate doctrinal specification on reality verification, and the separate doctrinal specification on approval-execution separation, not as a substitute for any of them. Earlier public materials, the canonical baseline publication, the earlier doctrinal extension, the separate doctrinal specification on epistemic applicability, the separate doctrinal specification on reality verification, the separate doctrinal specification on approval-execution separation, and independently timestamped records support continuity of authorship and development history.