Crossref Metadata

Agent Source Token 8676e950-8ac5-4074-8ac3-c0a18ada7e99
Consumes Artifacts none
Subject coverage All Crossref DOIs
Object Coverage All DataCite DOIs
Data Contributor Crossref
Data Origin Crossref Metadata deposited by Crossref Members
Freshness Every few hours
Identifies DOIs
License Made available without restriction
Looks in References in Crossref Schema
Name Crossref Metadata
Operated by Crossref
Produces Evidence Records No
Produces relation types references and other types found in the Crossref schema
Source ID crossref
Updates or deletions None expected

What it is

Links from Crossref DOIs to DataCite DOIs. These are recorded in the metadata for Crosref's Registered Content. The data is ultimatley supplied by Crossref members who are the publishers and 'owners' of the Registered Content.

Only Relations between Crossref DOIs and DataCite DOIs are included. If you want other metadata you can find it in the Crossref Metadata REST API.

In future we may add links to other objects, such as ORCID IDs and Clinical Trial Numbers.

What it does

The Agent monitors all relationships in Crossref metadata deposited by members. Where a relation is made between a Crossref DOI and a DataCite DOI, that link is sent as an Event.

Where data comes from

Metadata deposits from Crossref members, usually Publishers.

Example Event

  "terms": "",


  1. A member makes an XML deposit with Crossref.
  2. The agent monitors new deposits (or back-fills).
  3. When a link is found an Event is created if:
    • it is to a non-Crossref DOI
    • it has not already been reported to Event Data

Evidence Record

No evidence record is created because the events come straight from the data source into Event Data.

Edits / Deletion

We do not anticipate that Events are ever deleted or edited.



Failure modes

  • Member may remove references before the Agent first scans the data, in which case we will not create a new Event
  • Member may deposit incorrect metadata.

Further information