{
  "x-provenance": {
    "generated": "2026-08-19",
    "method": "derived",
    "source": "live probe of https://spiral.imperial.ac.uk/server/api (DSpace 7.6.1 / DSpace-CRIS 2023.02.05)",
    "x-operator": "tenant",
    "x-operator-note": "Derived from / probed against the 4Science-hosted Spiral DSpace-CRIS instance. The data is Imperial College London’s; the platform and contract are not."
  },
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/imperial-college-london/main/json-schema/imperial-college-london-item-schema.json",
  "title": "Spiral DSpace Item",
  "description": "A deposited research output (item) in Imperial College London's Spiral repository, as returned by the DSpace 7.6.1 REST API at /server/api/core/items/{uuid}. HAL+JSON.",
  "type": "object",
  "required": [
    "uuid",
    "type",
    "metadata"
  ],
  "properties": {
    "id": {
      "type": "string",
      "format": "uuid"
    },
    "uuid": {
      "type": "string",
      "format": "uuid"
    },
    "name": {
      "type": "string"
    },
    "handle": {
      "type": "string",
      "examples": [
        "10044/1/118549"
      ]
    },
    "inArchive": {
      "type": "boolean"
    },
    "discoverable": {
      "type": "boolean"
    },
    "withdrawn": {
      "type": "boolean"
    },
    "lastModified": {
      "type": "string",
      "format": "date-time"
    },
    "entityType": {
      "type": [
        "string",
        "null"
      ]
    },
    "type": {
      "type": "string",
      "const": "item"
    },
    "metadata": {
      "type": "object",
      "description": "Map of metadata field keys to arrays of metadata values.",
      "additionalProperties": {
        "type": "array",
        "items": {
          "$ref": "#/$defs/metadataValue"
        }
      }
    },
    "_links": {
      "type": "object"
    }
  },
  "$defs": {
    "metadataValue": {
      "type": "object",
      "required": [
        "value"
      ],
      "properties": {
        "value": {
          "type": "string"
        },
        "language": {
          "type": [
            "string",
            "null"
          ]
        },
        "authority": {
          "type": [
            "string",
            "null"
          ]
        },
        "confidence": {
          "type": "integer"
        },
        "place": {
          "type": "integer"
        }
      }
    }
  }
}