<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="ext-applicable-certificates" />
  <url value="http://pcm.fhir.health.gov.il/StructureDefinition/ext-applicable-certificates" />
  <version value="0.1.6" />
  <name value="ExtApplicableCertificates" />
  <title value="Ext: Applicable certificates" />
  <status value="active" />
  <description value="One or more certificate thumbprints (x5t#S256, base64url SHA-256 of the certificate) for NTN-registered certificates applicable to this resource." />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Element" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Ext: Applicable certificates" />
      <definition value="One or more certificate thumbprints (x5t#S256, base64url SHA-256 of the certificate) for NTN-registered certificates applicable to this resource." />
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <min value="1" />
    </element>
    <element id="Extension.extension:thumbprint">
      <path value="Extension.extension" />
      <sliceName value="thumbprint" />
      <min value="1" />
      <max value="*" />
    </element>
    <element id="Extension.extension:thumbprint.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:thumbprint.url">
      <path value="Extension.extension.url" />
      <fixedUri value="thumbprint" />
    </element>
    <element id="Extension.extension:thumbprint.value[x]">
      <path value="Extension.extension.value[x]" />
      <short value="Applicable certificate thumbprint (x5t#S256, base64url SHA-256)" />
      <comment value="base64url-encoded [RFC4648] SHA-256 [SHS] hash (a.k.a., thumbprint, fingerprint, or digest) of the DER encoding [X690] of the X.509 certificate [RFC5280]. The base64url-encoded value MUST omit all trailing pad '=' characters and MUST NOT include any line breaks, whitespace, or other additional characters. Aligned with RFC 8705 x5t#S256 value." />
      <min value="1" />
      <type>
        <code value="string" />
      </type>
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://pcm.fhir.health.gov.il/StructureDefinition/ext-applicable-certificates" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>