{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://w3id.org/moochub/4.0.0/schemas/license.json",
  "title": "License",
  "type": "object",
  "description": "A license or rights statement with a readable label and an optional canonical URL. Omit id when no public license document is available, for example for proprietary or all-rights-reserved content.",
  "properties": {
    "type": {
      "const": "License"
    },
    "id": {
      "type": "string",
      "format": "url",
      "description": "The URL of the license document or license terms. Omit when no public license document exists.",
      "example": "https://creativecommons.org/licenses/by/4.0/"
    },
    "identifier": {
      "type": "string",
      "minLength": 1,
      "description": "A readable license label or identifier, such as CC BY 4.0, CC0 1.0 Universal, or Proprietary.",
      "example": "CC BY 4.0"
    }
  },
  "required": ["type", "identifier"]
}