{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://vulnerability.circl.lu/static/schemas/CIRCL/Sighting.json",
  "type": "object",
  "title": "Sighting format.",
  "description": "This schema specifies the format of a sighting.",
  "required": [
    "uuid",
    "vulnerability_lookup_origin",
    "author",
    "vulnerability",
    "type",
    "creation_timestamp"
  ],
  "additionalProperties": false,
  "properties": {
    "uuid": {
      "type": "string",
      "format": "uuid",
      "description": "UUIDv4 of the sighting.",
      "readOnly": true,
      "options": {"hidden": true}
    },
    "vulnerability_lookup_origin": {
      "type": "string",
      "format": "uuid",
      "description": "UUIDv4 of the Vulnerability-Lookup instance.",
      "default": "1a89b78e-f703-45f3-bb86-59eb712668bd",
      "readOnly": true,
      "options": {"hidden": true}
    },
    "author": {
      "type": "string",
      "format": "uuid",
      "description": "UUIDv4 of the author.",
      "readOnly": true,
      "options": {"hidden": true}
    },
    "source": {
      "type": "string",
      "maxLength": 2048,
      "description": "The source of the sighting (Fediverse status URI, link, tool, etc.)."
    },
    "creation_timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "When the sighting was created",
      "options": {"hidden": true}
    },
    "type": {
      "type": "string",
      "enum": ["seen", "published-proof-of-concept", "exploited", "not-exploited", "confirmed", "not-confirmed", "patched", "not-patched"],
      "default": "seen",
      "description": "Type of the sighting."
    },
    "vulnerability": {
      "type": "string",
      "description": "The vulnerability related to the sighting."
    },
    "content": {
      "type": "string",
      "description": "Optional free-form content describing the sighting.",
      "default": ""
    }
  }
}