WHO SMART Trust
1.4.0 - release

WHO SMART Trust, published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.4.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-trust/tree/v1.4.0-release-candidate and changes regularly. See the Directory of published versions

## CodeSystem: WHO GDHCN Trust Actors CodeSystem (Experimental)

Official URL: http://smart.who.int/trust/CodeSystem/Actors | Version: 1.4.0
Active as of 2026-01-12 | Computable Name: Actors

CodeSystem for SMART Trust actors that has usage codes for verification keys published to the Trust Network as defined by the certificate governance

This Code system is referenced in the content logical definition of the following value sets:

- Actors

This case-insensitive code system `http://smart.who.int/trust/CodeSystem/Actors` defines the following codes:

Code | Display | Definition
credential-holder | Holder of a Credential |
credential-issuer | Issuer of a Credential |
gdhcn | GDHCN | Global Digital Health Certification Network (GDHCN)
TNG | TNG | Trust Network Gateway
TNP | TNP | Trust Network Participant