{
  "id": "article.json",
  "$schema": "http://json-schema.org/draft-04/schema",
  "title": "Article",
  "description": "An article from some source which can have a cover image with measurement data",
  "type": [
    "object"
  ],
  "properties": {
    "type": {
      "description": "Block type",
      "example": "article",
      "type": "string",
      "enum": [
        "article"
      ]
    },
    "cover": {
      "$ref": "media.json#/definitions/cover"
    },
    "html": {
      "description": "HTML content of the block",
      "example": "<article><h1>Hello, world!</h1></article>",
      "type": "string",
      "minLength": 7
    }
  },
  "required": [
    "type",
    "html"
  ]
}