WHO SMART Trust
1.7.1 - release

WHO SMART Trust, published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.7.1 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/v1.7.1-releasecandidate and changes regularly. See the Directory of published versions

## Logical Model: CBOR Web Token (CWT) Payload (Common)

Official URL: http://smart.who.int/trust/StructureDefinition/CWTPayload | Version: 1.7.1
Active as of 2026-08-27 | Computable Name: CWTPayload

Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml

Usages:

- Use this Logical Model: CBOR Web Token (CWT) Claim

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

- Key Elements Table
- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CWTPayload |  | 0..* | Base | CBOR Web Token (CWT) Payload (Common)
1 |  | 0..1 | Coding | Issuer Code (iss)
4 |  | 0..1 | dateTime | Expiration Date Time(exp)
6 |  | 0..1 | dateTime | Issued At (iat)
-260 |  | 0..1 | HCert | Health Certificate
Documentation for this format

## API Information

##### CBOR Web Token (CWT) Payload (Common) API

Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml

Version: 1.0.0

## Endpoints

### GET /StructureDefinition-CWTPayload.schema.json

#### JSON Schema definition for the Logical Model StructureDefinition-CWTPayload

This endpoint serves the JSON Schema definition for the Logical Model StructureDefinition-CWTPayload.

## Schema Definition

### StructureDefinition-CWTPayload

Description: Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml

Type: object

Full Schema (JSON)

    {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "$id": "http://smart.who.int/base/StructureDefinition-CWTPayload.schema.json",
      "title": "CBOR Web Token (CWT) Payload (Common)",
      "description": "Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml ",
      "type": "object",
      "properties": {
        "resourceType": {
          "type": "string",
          "const": "CWTPayload",
          "description": "Resource type identifier for CWTPayload logical model"
        },
        "1": {
          "type": "object",
          "description": "Issuer"
        },
        "4": {
          "type": "string",
          "format": "date-time",
          "description": "Expiration Time"
        },
        "6": {
          "type": "string",
          "format": "date-time",
          "description": "Issued At"
        },
        "-260": {
          "$ref": "http://smart.who.int/base/StructureDefinition-HCert.schema.json",
          "description": "HCert"
        }
      },
      "required": [
        "resourceType"
      ],
      "resourceDefinition": "http://smart.who.int/trust/StructureDefinition/CWTPayload",
      "fhir:parent": "http://hl7.org/fhir/StructureDefinition/Base"
    }

This documentation is automatically generated from the OpenAPI specification.

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CWTPayload |  | 0..* | Base | CBOR Web Token (CWT) Payload (Common)
1 |  | 0..1 | Coding | Issuer Code (iss)
4 |  | 0..1 | dateTime | Expiration Date Time(exp)
6 |  | 0..1 | dateTime | Issued At (iat)
-260 |  | 0..1 | HCert | Health Certificate
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CWTPayload |  | 0..* | Base | CBOR Web Token (CWT) Payload (Common)
1 |  | 0..1 | Coding | Issuer Code (iss)
4 |  | 0..1 | dateTime | Expiration Date Time(exp)
6 |  | 0..1 | dateTime | Issued At (iat)
-260 |  | 0..1 | HCert | Health Certificate
Documentation for this format

This structure is derived from Base

Summary

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CWTPayload |  | 0..* | Base | CBOR Web Token (CWT) Payload (Common)
1 |  | 0..1 | Coding | Issuer Code (iss)
4 |  | 0..1 | dateTime | Expiration Date Time(exp)
6 |  | 0..1 | dateTime | Issued At (iat)
-260 |  | 0..1 | HCert | Health Certificate
Documentation for this format

Differential View

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CWTPayload |  | 0..* | Base | CBOR Web Token (CWT) Payload (Common)
1 |  | 0..1 | Coding | Issuer Code (iss)
4 |  | 0..1 | dateTime | Expiration Date Time(exp)
6 |  | 0..1 | dateTime | Issued At (iat)
-260 |  | 0..1 | HCert | Health Certificate
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CWTPayload |  | 0..* | Base | CBOR Web Token (CWT) Payload (Common)
1 |  | 0..1 | Coding | Issuer Code (iss)
4 |  | 0..1 | dateTime | Expiration Date Time(exp)
6 |  | 0..1 | dateTime | Issued At (iat)
-260 |  | 0..1 | HCert | Health Certificate
Documentation for this format

This structure is derived from Base

Summary

Other representations of profile: CSV, Excel