# Signature (CZ core) - HL7 Czech Base and Core FHIR IG v0.3.0

* [**Table of Contents**](toc.md)
* [**Summary artifacts**](artifacts.md)
* **Signature (CZ core)**

## Data Type Profile: Signature (CZ core) 

| | | |
| :--- | :--- | :--- |
| *Official URL*:https://hl7.cz/fhir/core/StructureDefinition/cz-signature | *Version*:0.3.0 | |
| * Standards status: *[Trial-use](http://hl7.org/fhir/R4/versions.html#std-process) | [Maturity Level](http://hl7.org/fhir/versions.html#maturity): 2 | *Computable Name*:CZ_Signature |

 
Czech national profile on Signature holds an electronic representation of a signature or timestamp and its supporting context in a FHIR accessible form. 

**Usages:**

* Use this DataType Profile: [Provenance (CZ core)](StructureDefinition-cz-provenance.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/hl7.fhir.cz.core|current/StructureDefinition/cz-signature)

### Formal Views of Profile Content

 [Description of Profiles, Differentials, Snapshots and how the different presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-cz-signature.csv), [Excel](StructureDefinition-cz-signature.xlsx), [Schematron](StructureDefinition-cz-signature.sch) 



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "cz-signature",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 2
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "trial-use"
  }],
  "url" : "https://hl7.cz/fhir/core/StructureDefinition/cz-signature",
  "version" : "0.3.0",
  "name" : "CZ_Signature",
  "title" : "Signature (CZ core)",
  "status" : "active",
  "experimental" : false,
  "date" : "2026-03-06T09:08:18+01:00",
  "publisher" : "HL7 Czech Republic",
  "contact" : [{
    "name" : "HL7 Czech Republic",
    "telecom" : [{
      "system" : "url",
      "value" : "https://www.hl7.cz/"
    }]
  }],
  "description" : "Czech national profile on Signature holds an electronic representation of a signature or timestamp and its supporting context in a FHIR accessible form.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "CZ",
      "display" : "Czechia"
    }]
  }],
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  }],
  "kind" : "complex-type",
  "abstract" : false,
  "type" : "Signature",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Signature",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Signature",
      "path" : "Signature",
      "short" : "Signature according to Czech conventions",
      "definition" : "Signature according to Czech conventions. The type determines whether it is a signature or a timestamp.",
      "constraint" : [{
        "key" : "data-must-be",
        "severity" : "error",
        "human" : "Signature must contain data, author and date",
        "expression" : "data.exists() and who.exists() and when.exists()",
        "source" : "https://hl7.cz/fhir/core/StructureDefinition/cz-signature"
      }]
    },
    {
      "id" : "Signature.type",
      "path" : "Signature.type",
      "definition" : "The kind of signature that determines whether it is a signature or a timestamp. RECOMMENDED to include.",
      "mustSupport" : true
    },
    {
      "id" : "Signature.when",
      "path" : "Signature.when",
      "mustSupport" : true
    },
    {
      "id" : "Signature.who",
      "path" : "Signature.who",
      "type" : [{
        "code" : "Reference",
        "targetProfile" : ["https://hl7.cz/fhir/core/StructureDefinition/cz-practitioner-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-practitionerrole-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-relatedPerson-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-device-observer",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-medical-device",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-organization-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-patient-core"]
      }],
      "mustSupport" : true
    },
    {
      "id" : "Signature.onBehalfOf",
      "path" : "Signature.onBehalfOf",
      "type" : [{
        "code" : "Reference",
        "targetProfile" : ["https://hl7.cz/fhir/core/StructureDefinition/cz-practitioner-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-practitionerrole-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-relatedPerson-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-device-observer",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-medical-device",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-organization-core"]
      }]
    },
    {
      "id" : "Signature.data",
      "path" : "Signature.data",
      "mustSupport" : true
    }]
  }
}

```
