Cloud Reference Admission Boundary (CRAB): A Non-Operational Reference Artifact for Pre-Execution Authority Fixation

Description This record publishes Cloud Reference Admission Boundary (CRAB) — a strictly non-operational, non-service reference artifact. CRAB fixes a single architectural fact: Execution of a system-significant action is impossible without an external admission anchor. The artifact does not process real data, does not execute business logic, does not make decisions, and does not provide any operational control.It exists solely to demonstrate a pre-execution admission boundary as an architectural constraint. CRAB is provided as a fixed, reproducible reference object, packaged together with cryptographic hashes that bind the artifact to an immutable state. Any modification constitutes a different artifact and requires a new fixation. Scope and status Non-operational Non-service Non-SaaS Non-claims Authority-closed CRAB introduces no standards, protocols, implementations, compliance mechanisms, or policy recommendations.It provides no legal, regulatory, or operational guidance. Relationship to other artifacts CRAB is logically compatible with previously published reference artifacts: Settlement Admission Boundary (SAB, Class 0) — external public anchorhttps://doi.org/10.5281/zenodo.18222785 Financial Black Box — post-execution provability limitZenodo record: https://zenodo.org/records/18187183DOI (v1): https://doi.org/10.5281/zenodo.18187183DOI (all versions): https://doi.org/10.5281/zenodo.18187182 Logical Consequence: Financial Black Box → Class I Admission Boundaryhttps://doi.org/10.5281/zenodo.18206673 CRAB does not depend on any Black Box implementation and does not constitute an execution system. Non-claims This record: provides no legal advice; makes no policy or regulatory recommendations; asserts no factual claims about real-world systems or incidents; certifies nothing and warrants nothing. Interpretation beyond the literal text of this record and the referenced DOI artifacts is not authorized.