| Official identifier | Official identifier scheme / authoritative source | External/domain SoR | Resolver/read model | Resolve/correlate/alias | Remain authoritative externally | Identifier-source evidence |
| DPP content | Economic operator / applicable authority by field | Domain DPP repository | Public/restricted view | Orchestrate/policy-compose | Registry/authority may validate status | Source/provenance |
| EU Registry status | EU DPP Registry | External authoritative service | Local status cache/read model | Register/reconcile/monitor | Authoritative status | Connector evidence |
| Ownership claim | Evidence-backed claimant/issuer under applicable context | Claim/evidence store | Owner view | Manage claim lifecycle | External law/authority governs legal effect | Evidence/provenance |
| Device certificate | Device PKI | Certificate registry / PKI | Trust view | Lifecycle/orchestrate | Issuer/PKI authoritative for cert status | PKI status evidence |
| Runtime device trust | Attestation + policy decision | Trust appraisal record | Current trust view | Appraise/enforce | Attester/verifier inputs | Attestation evidence |
| TTID alias | Trusted ThingID resolver governance | Resolver domain | Resolution result | Authoritative for TTID alias only | Official ID authority remains external | Resolver evidence |
| Search index | Derived from authoritative/domain sources | Derived index | Search results | Index only | None | Refresh/provenance metadata |