ORVEX PRO presents a documentary verification infrastructure designed to operate in read-only mode, without network dependency, including in environments with limited or no connectivity. In multi-actor and distributed projects, a recurrent blind spot is not the absence of documents, but the difficulty of maintaining a verifiable continuity of proof when documents circulate across actors, territories, and project phases. This deposit describes the conceptual, technical, and governance framework of ORVEX PRO, as well as its operational implementation through a verification application (PWA) capable of: Reading embedded documentary identifiers and envelopes (QR codes) ; Performing local integrity, coherence, and continuity checks ; Operating offline, without contacting the document issuer or a central registry ; Strictly separating issuance, signature, and verification functions. The QR codes embedded in this document constitute a direct and testable demonstration: they can be detected and interpreted by ORVEX-VERIFY, including offline, illustrating the principle of portable proof—a proof that remains verifiable independently of systems, platforms, authorities, or connectivity. ORVEX PRO does not position itself as an authority, registry, or enforcement mechanism.It provides a neutral documentary verification layer, allowing institutions to observe and address a structural exposure rather than rely on procedural assumptions. This deposit targets public authorities, international institutions, field operators, researchers, and system architects seeking a verifiable, interoperable, and infrastructure-light documentary verification framework, particularly in contexts where auditability, credibility, and continuity of proof are critical.