Metadata pointing at a FHIR Document Bundle

{
  "resourceType": "DocumentReference",
  "id": "example-bundle",
  "meta": {
    "security": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code": "HTEST"
      },
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-Confidentiality",
        "code": "N"
      }
    ]
  },
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: DocumentReference</b><a name=\"example-bundle\"> </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 DocumentReference &quot;example-bundle&quot; </p><p style=\"margin-bottom: 0px\">Security Labels: <span title=\"{http://terminology.hl7.org/CodeSystem/v3-ActReason http://terminology.hl7.org/CodeSystem/v3-ActReason}\">http://terminology.hl7.org/CodeSystem/v3-ActReason</span>, <span title=\"{http://terminology.hl7.org/CodeSystem/v3-Confidentiality http://terminology.hl7.org/CodeSystem/v3-Confidentiality}\">http://terminology.hl7.org/CodeSystem/v3-Confidentiality</span></p></div><p><b>identifier</b>: id: urn:uuid:0c3151bd-1cbf-4d64-b04d-cd9187a4c6e0</p><p><b>status</b>: current</p><p><b>type</b>: Physician attending Discharge summary <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#28655-9)</span></p><p><b>subject</b>: <a href=\"todo.html\">http://fhir.healthintersections.com.au/open/Patient/d1: Eve Everywoman</a></p><h3>Events</h3><table class=\"grid\"><tr><td>-</td><td><b>Reference</b></td></tr><tr><td>*</td><td><a href=\"todo.html\">http://fhir.healthintersections.com.au/open/Encounter/doc-example</a></td></tr></table><p><b>date</b>: 01/02/2013 11:30:02 PM</p><p><b>author</b>: <a href=\"practitioner-example.html\">Practitioner/example: Doctor Dave</a> &quot;Adam CAREFUL&quot;</p><p><b>description</b>: Discharge Summary</p><p><b>securityLabel</b>: normal <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/3.1.0/CodeSystem-v3-Confidentiality.html\">Confidentiality</a>#N)</span></p><blockquote><p><b>content</b></p><h3>Attachments</h3><table class=\"grid\"><tr><td>-</td><td><b>Url</b></td></tr><tr><td>*</td><td><span title=\"  no content type as the retrieve will determine  \"><code>Bundle/father</code></span></td></tr></table></blockquote></div>"
  },
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:uuid:0c3151bd-1cbf-4d64-b04d-cd9187a4c6e0"
    }
  ],
  "status": "current",
  "type": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "28655-9"
      }
    ]
  },
  "subject": {
    "reference": "http://fhir.healthintersections.com.au/open/Patient/d1",
    "display": "Eve Everywoman"
  },
  "event": [
    {
      "reference": {
        "reference": "http://fhir.healthintersections.com.au/open/Encounter/doc-example"
      }
    }
  ],
  "date": "2013-02-01T12:30:02Z",
  "author": [
    {
      "reference": "Practitioner/example",
      "display": "Doctor Dave"
    }
  ],
  "description": "Discharge Summary",
  "securityLabel": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/v3-Confidentiality",
          "code": "N"
        }
      ]
    }
  ],
  "content": [
    {
      "attachment": {
        "url": "Bundle/father"
      }
    }
  ]
}