{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/dead-drop/main/json-schema/dead-drop-version-schema.json",
  "title": "Drop Version",
  "description": "A historical version of a drop. Each drop is limited to 5 stored versions.",
  "type": "object",
  "properties": {
    "version": {
      "type": "integer",
      "minimum": 1,
      "description": "Monotonically increasing version number for the drop."
    },
    "createdAt": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when this version was created."
    },
    "payload": {
      "type": "string",
      "description": "Payload for this version (same format rules as the current drop)."
    },
    "iv": {
      "type": ["string", "null"],
      "pattern": "^[a-f0-9]{24}$",
      "description": "Hex-encoded 12-byte AES-GCM IV used for this version. Null for public drops."
    }
  },
  "required": ["version", "createdAt"]
}