Semantic vocabulary framework for Digital Product Passports — harmonising GS1, EU ESPR, UNTP, and CEN/CENELEC JTC 24 standards. Browsable ontologies at ref.openepcis.io.
dppvalidator is the "GDPR compliance engine" for physical products, enforcing the strict digital syntax required for the EU's Digital Product Passport.
The open interop boundary of OpenDPP — official schemas, live-reproducible samples, a conformance validator, and the OpenAPI contract for AAS (IDTA) + UNTP/W3C-VC output.
The open standard for verifiable product data — every claim carries its level of proof, from the seller's word to a signed certificate. Governed by TrustLayer Foundation A.C.
The OpenDPP Integration API as a machine-readable OKF (Open Knowledge Format) bundle — agent-ingestible, cross-linked Markdown for every endpoint, schema and webhook, regenerated from the live OpenAPI spec.
UNTP extension profile: EU Digital Product Passport field specs for 12 product categories as JSON-LD contexts and W3C Verifiable Credential schemas. Every coined term resolves and names the EU instrument that defines it.
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