<p>Medical-device imaging workflows need a reproducible way to connect unique device identification (UDI) with Digital Imaging and Communications in Medicine (DICOM) equipment metadata and with external evidence such as installation-acceptance or calibration records. The problem addressed here is not to build a hospital-wide platform. It is to define a minimal, checkable profile that preserves the full UDI, derives a device identifier suitable for registry lookup, and links the result to reviewable evidence. We derived a minimal UDI-DICOM mapping profile from International Medical Device Regulators Forum (IMDRF) UDI guidance, current DICOM equipment and UDI provisions, and U.S. Food and Drug Administration Global Unique Device Identification Database (GUDID) registry semantics. The revised contribution is not the individual standard fields themselves; it is the combination of a machine-readable manifest, explicit cross-layer validation rules, and a prototype validation artifact. The artifact accepts a manifest plus DICOM metadata, performs presence and parseability checking, registry-resolution checking, cross-layer consistency checking, and evidence-link closure checking, and emits reviewable Markdown, JSON, and JSON Lines outputs. Validation was executed on an offline fixture, a live openFDA/GUDID lookup path, and a synthetic <Emphasis FontCategory="NonProportional">pydicom</Emphasis>-generated DICOM fixture. All available artifact runs passed. No real-device DICOM specimen has yet been validated. This paper therefore contributes a bounded Methods Paper artifact for imaging informatics, biomedical engineering traceability, and standards-oriented workflow integration readers, while explicitly excluding claims of clinical validation, regulatory approval, hospital-wide deployment, or universal interoperability.</p>