WHO SMART Trust
1.1.6 - CI Build

WHO SMART Trust, published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.1.6 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/gherkintests and changes regularly. See the Directory of published versions

## Logical Model: CWTPayload - JSON Profile

Active as of 2025-09-10

JSON representation of the CWTPayload logical model.

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    {
      "resourceType" : "StructureDefinition",
      "id" : "CWTPayload",
      "text" : {
        "status" : "extensions",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition CWTPayload</b></p><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Minimum and Maximum # of times the element can appear in the instance\">Card.</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Additional information about the element\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-CWTPayload-definitions.html#CWTPayload\" title=\"Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml \">CWTPayload</a><a name=\"CWTPayload\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">*</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://build.fhir.org/types.html#Base\">Base</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">CBOR Web Token (CWT) Payload (Common)</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-CWTPayload-definitions.html#CWTPayload.1\" title=\"Issuer\">1</a><a name=\"CWTPayload.1\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#Coding\">Coding</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Issuer Code (iss)</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-CWTPayload-definitions.html#CWTPayload.4\" title=\"Expiration Time\">4</a><a name=\"CWTPayload.4\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#dateTime\">dateTime</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Expiration Date Time(exp)</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-CWTPayload-definitions.html#CWTPayload.6\" title=\"Issued At\">6</a><a name=\"CWTPayload.6\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#dateTime\">dateTime</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Issued At (iat)</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_resource.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Resource\" class=\"hierarchy\"/> <a href=\"StructureDefinition-CWTPayload-definitions.html#CWTPayload.-260\" title=\"HCert\">-260</a><a name=\"CWTPayload.-260\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"StructureDefinition-HCert.html\">HCert</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Health Certificate</td></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
      },
      "url" : "http://smart.who.int/trust/StructureDefinition/CWTPayload",
      "version" : "1.1.6",
      "name" : "CWTPayload",
      "title" : "CBOR Web Token (CWT) Payload (Common)",
      "status" : "active",
      "date" : "2025-09-10T05:43:38+00:00",
      "publisher" : "WHO",
      "contact" : [
        {
          "name" : "WHO",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://who.int"
            }
          ]
        }
      ],
      "description" : "Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml ",
      "jurisdiction" : [
        {
          "coding" : [
            {
              "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
              "code" : "001"
            }
          ]
        }
      ],
      "fhirVersion" : "4.0.1",
      "kind" : "logical",
      "abstract" : false,
      "type" : "http://smart.who.int/trust/StructureDefinition/CWTPayload",
      "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Base",
      "derivation" : "specialization",
      "snapshot" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
            "valueString" : "4.0.1"
          }
        ],
        "element" : [
          {
            "id" : "CWTPayload",
            "path" : "CWTPayload",
            "short" : "CBOR Web Token (CWT) Payload (Common)",
            "definition" : "Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml ",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Base",
              "min" : 0,
              "max" : "*"
            },
            "isModifier" : false
          },
          {
            "id" : "CWTPayload.1",
            "path" : "CWTPayload.1",
            "short" : "Issuer Code (iss)",
            "definition" : "Issuer",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CWTPayload.1",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Coding"
              }
            ]
          },
          {
            "id" : "CWTPayload.4",
            "path" : "CWTPayload.4",
            "short" : "Expiration Date Time(exp)",
            "definition" : "Expiration Time",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CWTPayload.4",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "dateTime"
              }
            ]
          },
          {
            "id" : "CWTPayload.6",
            "path" : "CWTPayload.6",
            "short" : "Issued At (iat)",
            "definition" : "Issued At",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CWTPayload.6",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "dateTime"
              }
            ]
          },
          {
            "id" : "CWTPayload.-260",
            "path" : "CWTPayload.-260",
            "short" : "Health Certificate",
            "definition" : "HCert",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CWTPayload.-260",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://smart.who.int/trust/StructureDefinition/HCert"
              }
            ]
          }
        ]
      },
      "differential" : {
        "element" : [
          {
            "id" : "CWTPayload",
            "path" : "CWTPayload",
            "short" : "CBOR Web Token (CWT) Payload (Common)",
            "definition" : "Logical Model for CBOR Web Token (CWT) Payload Logical Modelin CWT Payload https://www.iana.org/assignments/cwt/cwt.xhtml "
          },
          {
            "id" : "CWTPayload.1",
            "path" : "CWTPayload.1",
            "short" : "Issuer Code (iss)",
            "definition" : "Issuer",
            "min" : 0,
            "max" : "1",
            "type" : [
              {
                "code" : "Coding"
              }
            ]
          },
          {
            "id" : "CWTPayload.4",
            "path" : "CWTPayload.4",
            "short" : "Expiration Date Time(exp)",
            "definition" : "Expiration Time",
            "min" : 0,
            "max" : "1",
            "type" : [
              {
                "code" : "dateTime"
              }
            ]
          },
          {
            "id" : "CWTPayload.6",
            "path" : "CWTPayload.6",
            "short" : "Issued At (iat)",
            "definition" : "Issued At",
            "min" : 0,
            "max" : "1",
            "type" : [
              {
                "code" : "dateTime"
              }
            ]
          },
          {
            "id" : "CWTPayload.-260",
            "path" : "CWTPayload.-260",
            "short" : "Health Certificate",
            "definition" : "HCert",
            "min" : 0,
            "max" : "1",
            "type" : [
              {
                "code" : "http://smart.who.int/trust/StructureDefinition/HCert"
              }
            ]
          }
        ]
      }
    }