{
    "$schema": "http://json-schema.org/draft-04/schema",
    "description": "The _id of the website from which this document was originally authored. In conjunction with canonical_url, it can be used to determine the SEO canonical url or open graph url. In a multi-site context, this field may be different from the website field.",
    "title": "Canonical Website",
    "type": "string"
}