PID Lookup API
Overview
Based on a known Persistent Identifier (PID), find other semantically related PIDs.
Note: Included with OCLC Meridian Subscription.
To learn about OCLC APIs and get started with the PID Lookup API, see:
- OCLC APIs > Get Started
- WorldCat Entities API context JSON
- WorldCat ontology guidelines and standards
If you're ready to start using the PID Lookup API, the OCLC Developer Network can help you learn more. The OCLC Developer Network allows you to learn about OCLC APIs, view OCLC API documentation, and participate in the OCLC APIs community.
About PID Lookup API
entity_url table
entity_url table definitions:
id - The resource identifier assigned by the curating body. Depending on the curator, it can correspond to the last segment of a URI path (e.g. http://id.loc.gov/authorities/names/n50031316)
curator - The label given to a body that assigns and manages authoritative resource ids.
uri - The entity URI has a same as relationship to the id + curator
entityMd5 - The entity's unique digital signature.
id | curator | uri |
---|---|---|
n50031316 | dlcnames | https://id.oclc.org/worldcat/entity/E39PBJx8JRbWpdcDTRw4GFVt8C |
99251 | fast | https://id.oclc.org/worldcat/entity/E39PBJvd4Mwd74PrC378WH3vpP |
ncf10891264 | caoonl | https://id.oclc.org/worldcat/entity/E39PBJgMv8x9xvDRdWk8bGJJjC |
XX821717 | bne | https://id.oclc.org/worldcat/entity/E39PBJfCqFMHqxbm7wfwdRB9Dq |
curator table
curator table definitions:
curator - The label given to a body that assigns and manages authoritative resource ids.
uri_pattern - The fixed path portion of the URI that is used by a curator (e.g. http://id.loc.gov/authorities/names/).
entity_label - The value of a label associated with a curator in the identifiedBy portion of an Entity JSON-LD record.
parenthetical - The leading value in an authority controlled heading link node, usually in the form of a MARC Organization Code surrounded by parentheses (e.g. (SpMaBN)).
source - The source attribute value in an authority controlled heading, usually relating to an internal data store (e.g. nlleocl).
description - The name of the curating body, and other metadata.
rules - When appropriate, these spell out edits that need to be performed when going from a resource id to a URI.
Path
v1/pid-lookup
Authorization scope
pidLookup
Esempio
To GET a request of all PID curators for OCLC Meridian:
GET command: https://entities.api.oclc.org/v1/pid-lookup/curator