Provenance with signature for a Consent

{
  "resourceType" : "Provenance",
  "id" : "consent-signature",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: Provenance</b><a name=\"consent-signature\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource Provenance &quot;consent-signature&quot; </p></div><p><b>target</b>: <a href=\"consent-example.html\">Consent/consent-example-basic/_history/1</a></p><p><b>recorded</b>: <span title=\"  the provenance is recorded at the same time as \n    the resource - batched together  \">26 May 2016, 2:41:10 pm</span></p><p><b>activity</b>: authenticated <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-v3-DocumentCompletion.html\">DocumentCompletion</a>#AU)</span></p><p><b>patient</b>: <a href=\"patient-example.html\">Patient/example</a> &quot;Peter CHALMERS&quot;</p><h3>Agents</h3><table class=\"grid\"><tr><td>-</td><td><b>Role</b></td><td><b>Who</b></td></tr><tr><td>*</td><td>author (originator) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-v3-ParticipationType.html\">ParticipationType</a>#AUT)</span></td><td><a href=\"broken-link.html\">Patient/72</a></td></tr></table><h3>Signatures</h3><table class=\"grid\"><tr><td>-</td><td><b>Type</b></td><td><b>When</b></td><td><b>Who</b></td><td><b>TargetFormat</b></td><td><b>SigFormat</b></td><td><b>Data</b></td></tr><tr><td>*</td><td>Author's Signature (Details: urn:iso-astm:E1762-95:2013 code 1.2.840.10065.1.12.1.1 = 'Author's Signature', stated as 'Author's Signature')</td><td>26 May 2016, 2:41:10 pm</td><td><a href=\"broken-link.html\">Patient/72</a></td><td>application/fhir+xml</td><td>application/signature+xml</td><td>dGhpcyBibG9iIGlzIHNuaXBwZWQ=</td></tr></table></div>"
  },
  "target" : [{
    "reference" : "Consent/consent-example-basic/_history/1"
  }],
  "recorded" : "2016-05-26T00:41:10-04:00",
  "activity" : {
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/v3-DocumentCompletion",
      "code" : "AU",
      "display" : "authenticated"
    }]
  },
  "patient" : {
    "reference" : "Patient/example"
  },
  "agent" : [{
    "role" : [{
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-ParticipationType",
        "code" : "AUT"
      }]
    }],
    "who" : {
      "reference" : "Patient/72"
    }
  }],
  "signature" : [{
    "type" : [{
      "system" : "urn:iso-astm:E1762-95:2013",
      "code" : "1.2.840.10065.1.12.1.1",
      "display" : "Author's Signature"
    }],
    "when" : "2016-05-26T00:41:10-04:00",
    "who" : {
      "reference" : "Patient/72"
    },
    "targetFormat" : "application/fhir+xml",
    "sigFormat" : "application/signature+xml",
    "data" : "dGhpcyBibG9iIGlzIHNuaXBwZWQ="
  }]
}