{
  "id": "urn:ngsi-ld:Attachment:77",
  "type": "Attachment",
  "task": "urn:ngsi-ld:Task:1234",
  "author": "urn:ngsi-ld:Team:field-team-a",
  "contentUrl": "https://tracker.example.jp/attachments/download/77/IMG_0012.jpg",
  "filename": "IMG_0012.jpg",
  "encodingFormat": "image/jpeg",
  "contentSize": 2483011,
  "digest": "sha256:9f2c1e5a7b3d4f60a1b2c3d4e5f60718293a4b5c6d7e8f90a1b2c3d4e5f60718",
  "description": "アンダーパス東側の入口、西向き",
  "location": {
    "type": "Point",
    "coordinates": [
      139.7514,
      35.6952
    ]
  },
  "source": "https://tracker.example.jp/attachments/77",
  "externalId": "77",
  "dateCreated": "2026-07-08T10:58:00+09:00"
}