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{
  "$schema": "http://json-schema.org/draft/2019-09/schema#",
  "$id": "https://fedora.info/schemas/2020/06/06/headers.json",

  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "format": "uri"
    },
    "parent": {
      "type": "string",
      "format": "uri"
    },
    "stateToken": {
      "type": "string"
    },
    "interactionModel": {
      "type": "string",
      "format": "uri",
      "enum": [
        "http://www.w3.org/ns/ldp#NonRDFSource",
               "http://www.w3.org/ns/ldp#RDFSource",
               "http://www.w3.org/ns/ldp#RDFSource",
               "http://www.w3.org/ns/ldp#Container",
               "http://www.w3.org/ns/ldp#BasicContainer",
               "http://www.w3.org/ns/ldp#DirectContainer",
               "http://www.w3.org/ns/ldp#IndirectContainer",
               "http://fedora.info/definitions/v4/repository#ArchivalGroup",
               "http://fedora.info/definitions/v4/repository#NonRdfSourceDescription",
               "http://fedora.info/definitions/v4/webac#Acl"
      ]
    },
    "createdDate": {
      "type": "string",
      "format": "date-time"
    },
    "createdBy": {
      "type": "string"
    },
    "lastModifiedDate": {
      "type": "string",
      "format": "date-time"
    },
    "lastModifiedBy": {
      "type": "string"
    },
    "archivalGroup": {
      "type": "boolean"
    },
    "objectRoot": {
      "type": "boolean"
    },
    "deleted": {
      "type": "boolean"
    }
  },
  "required": [
    "id",
    "parent", "id"],
  "additionalProperties": false,

  $comment
    "stateToken",
    "interactionModel",
    "createdDate",
    "lastModifiedDate",
    "archivalGroup",
    "objectRoot",
    "deleted"
  ],
  "$comment": "NonRDFSource resources have additional properties",
  "if": {
    "properties": {
      "interactionModel": {
        "const": "http://www.w3.org/ns/ldp#NonRDFSource"
      }
    }
  },
  "then": {
    "properties": {
      "mimeType": {
        "type": "string"
      },
      "filename": {
        "type": "string"
      },
      "contentSize": {
        "type": "integer"
      },
      "digests": {
        "type": "array",
        "items": {
          "type": "string",
          "format": "uri"
        }
      },
      "externalUrl": {
        "type": "string",
        "format": "uri"
      },
      "externalHandling": {
        "type": "string",
        "enum": [
          "proxy",
          "copy",
          "redirect"
        ]
      }
    },
    "required": [
      "mimeType",
      "filename",
      "contentSize",
      "digests"
    ]
  }
}