University of California, San Diego Objects API

openapi: 3.2.0
info:
  title: UC San Diego Library Digital Collections JSON Objects API
  description: 'Public, read-only JSON search-and-retrieval interface over the UC San Diego Library Digital Collections (DC), the Library''s locally developed Digital Asset Management System (DAMS). The stack is Fedora-backed and Blacklight/Solr-fronted, and the JSON representations are the same documents that back the public HTML interface — request `.json` on a search or object path and the Solr response is returned directly.

    UC San Diego operates this service itself: `library.ucsd.edu` resolves inside UC San Diego address space (132.239.119.5) and is served from the Library''s own Apache origin, not from a repository vendor''s platform. It is registered on re3data as an institutional data provider (r3d100011577) and mints DOIs under the DataCite repository account CDL.UCSD (prefix 10.6075).

    UC San Diego does NOT publish an OpenAPI description for this interface. This document was written by API Evangelist from live probes of the endpoints and their responses on 2026-08-19; it is a description of observed behaviour, not a contract the institution has committed to.

    Note for automated clients: `library.ucsd.edu` fronts browser-like User-Agent strings with an Anubis proof-of-work bot challenge that returns HTTP 200 with a challenge body. Plain non-browser User-Agents (curl, python-requests) are served normally.'
  version: 2026-08-19
  contact:
    name: UC San Diego Library — Research Data Curation
    email: research-data-curation@ucsd.edu
    url: https://library.ucsd.edu/dc/p/about
  license:
    name: Rights vary per object; see the Digital Collections rights statements
    url: https://library.ucsd.edu/dc/p/collection_policies
servers:
- url: https://library.ucsd.edu
  description: UC San Diego Library Digital Collections (production)
tags:
- name: objects
  description: Retrieval of a single digital object or assembled collection record.
paths:
  /dc/object/{id}.json:
    get:
      tags:
      - objects
      summary: Retrieve a digital object
      operationId: getDigitalObject
      description: Returns the indexed Solr document for a single digital object, keyed by its ARK name segment (for example `bb38236995`). The document carries descriptive metadata, rights and permission statements, component/file maps, collection membership and object profile datastreams.
      parameters:
      - name: id
        in: path
        required: true
        description: ARK name segment of the object.
        schema:
          type: string
          pattern: ^[a-z0-9]+$
        example: bb38236995
      responses:
        '200':
          description: Solr document for the object.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DigitalObject'
        '404':
          description: No such object, or the object is not publicly discoverable.
          content:
            text/html:
              schema:
                type: string
  /dc/collection/{id}.json:
    get:
      tags:
      - objects
      summary: Retrieve an assembled collection
      operationId: getCollection
      description: Returns the indexed Solr document for an assembled collection (`DamsAssembledCollection`), keyed by its ARK name segment.
      parameters:
      - name: id
        in: path
        required: true
        description: ARK name segment of the collection.
        schema:
          type: string
          pattern: ^[a-z0-9]+$
        example: bb88559640
      responses:
        '200':
          description: Solr document for the collection.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DigitalObject'
        '404':
          description: No such collection, or it is not publicly discoverable.
          content:
            text/html:
              schema:
                type: string
components:
  schemas:
    DigitalObject:
      type: object
      description: Solr document for a digital object. Field names follow the Samvera/Hydra dynamic field suffix convention (_tesim text stored indexed multivalued, _ssi string stored indexed, _sim string indexed multivalued, _dtsi date stored indexed).
      properties:
        id:
          type: string
          description: ARK name segment, also the object's public identifier.
          example: bb38236995
        active_fedora_model_ssi:
          type: string
          description: Fedora model of the record.
          example: DamsObject
        object_state_ssi:
          type: string
          example: A
        title_tesim:
          type: array
          items:
            type: string
        date_tesim:
          type: array
          items:
            type: string
        unit_code_tesim:
          type: array
          items:
            type: string
        collection_name_tesim:
          type: array
          items:
            type: string
        resource_type_tesim:
          type: array
          items:
            type: string
        rightsHolder_tesim:
          type: array
          items:
            type: string
        otherRights_tesim:
          type: array
          description: Serialized rights/permission statements including basis and permission type.
          items:
            type: string
        discover_access_group_ssim:
          type: array
          description: Access groups permitted to discover the object; `public` for open material.
          items:
            type: string
        system_create_dtsi:
          type: string
          format: date-time
        system_modified_dtsi:
          type: string
          format: date-time
      additionalProperties: true