DPP-CQ provides a three-tier verification mechanism — from instant consumer scans to judicial-grade forensic verification. Each tier offers a different depth of assurance matched to the use case.
Progressive verification depth allows each stakeholder — consumers, retailers, regulators, courts — to access the level of assurance appropriate to their needs.
Instant validation of credential issuance legitimacy and current revocation status. Confirms that the product passport was issued by a registered, authorized issuer and has not been revoked.
Use cases: Consumer scan at point of sale, shelf verification, logistics checkpoint.
Full attribute verification including origin, craft technique, quality grade, and sustainability claims. Cross-references the credential hash against the Tianji Credibility Registry for tamper-evidence.
Use cases: Importer due diligence, certification audit, marketplace listing validation.
Complete evidentiary chain with cryptographic timestamps, full audit trail, and chain-of-custody records. Produces a verification report suitable for legal proceedings, customs disputes, and regulatory enforcement.
Use cases: Court evidence, customs seizure, IP infringement proceedings, regulatory investigation.
Consumer or verifier scans the QR code (L1) or taps the NFC tag (L2/L3) to retrieve the product's DPP credential URL.
The verifier resolves the issuer's DID through the ICO Root Resolver Network to obtain the issuer's public verification key.
The credential's cryptographic signature is verified against the issuer's key. Status is checked via the BitstringStatusList. Hash is cross-referenced with TCR.
Results are presented to the user — from a simple "Authentic ✓" indicator to a full forensic report depending on the verification tier requested.
Access the live verification platform to test credential verification, explore sample credentials, and understand the verification flow.
Open Verification Platformverify.icoun.org · No registration required for basic verification