Open governance framework · v1.3 · Practitioner-led · not an accredited standard, certification, or regulatory requirement · seeking shadow-evaluation partners
Home/Technical Stack

Architecture · Five Layers · Open Standards

Technical Stack

The trust stack for B2B healthcare voice AI.

The Trust Stack for B2B Healthcare Voice

STIR/SHAKEN verifies the phone number. NHID-Clinical verifies the AI agent behind the call and what it is authorized to do.

The Five-Layer Stack

Layer Purpose Key Standards NHID Role
Layer 0: NPI Gap Public NPI spoofing risk NPPES IDG-01 + NHID-Auth v2
Layer 1: STIR/SHAKEN Carrier number authentication RFC 8224 Complementary
Layer 2: NHID-Clinical v1.3 Behavioral disclosure baseline Voluntary proposal Core (IDG-01, PDX-01, DBC-01, EIT-01) + ATR-01
Layer 3: NHID-Auth v2 Cryptographic authorization NHID-Auth v2 (reference implementation) Authorization proof
Layer 4: FHIR AuditEvent Healthcare-native logging HL7 FHIR R4 ATR-01 compliance
Developers → Run the reference implementation

The Framework at a Glance

Every component of NHID-Clinical on one map — the proposal, the v1.3 controls, the technical stack, pilot tooling, regulatory alignment, and the v2 authorization layer (NHID-Auth).

Mind map of the NHID-Clinical framework: the proposal, v1.3 core controls (IDG-01, PDX-01, DBC-01, EIT-01), technical stack, pilot and evaluation tooling, regulatory alignment, v2 identity layer, and community governance

The five-layer trust stack, visualized

The homepage now carries an interactive layer-by-layer view of the architecture this page documents.

View the Trust Stack →   Explore in the AI Governance Map →  

Where to go next

Four ways into NHID-Clinical, whatever you came to do.

Read the Specification →The v1.3 controls, in full. Try the Simulator →Run the controls on call scenarios. Review the Evidence Pack →Guarantees, a failure trace, the audit model. Join the Community ↗Questions and feedback on GitHub.