A modular trust layer with explicit authority boundaries.

Resolve official identifiers, correlate aliases and extend assurance without redefining the authoritative product identifier.

Govern namespace uniqueness, persistence, collision detection, supersession and the rule that identifiers are never silently reused.

Apply versioned product-group profiles, authoring controls and registry orchestration while keeping external legal authorities authoritative.

Represent roles, responsibilities and verifiable assertions as source-aware, evidence-backed records with lifecycle and dispute handling.

Keep legal ownership, possession, custody, maintenance and delegation as separate evidence-backed relationships rather than DPP side effects.

Separate authentication, authorization and field-level disclosure through PAP/PIP/PDP/PEP policy semantics.

Bind business events and claims to source evidence, provenance, trusted time, immutable audit and retention policy.

Select assurance from L0 passive carrier through L3 runtime attestation according to risk and device capability.

Keep systems of record, claim/evidence stores, derived indexes and external-source representations explicit and non-confused.

Use domain-specific adapters over shared API, event, workflow, semantic mapping, retry and reconciliation capabilities.

Make decision ownership, risk acceptance, architecture traceability, conformance evidence and design handoff explicit.