Ticket of the month - April 2022 - reference coverage - which DOIs have I registered references for?

Hello,

I’m back again this month for our ticket of the month forum post. Included below is a common question we receive into our support desk seeking information about which DOIs have references registered for a specific journal.

We upload references for our journals. Unfortunately, I can’t remember where we left off registering our references with the Simple Text Query form. Is there a way to check on which DOIs I have registered references for? Maybe we could start with a list for “The Journal Of Test Deposits” (ISSN 01988220)?

Our REST API is perfectly positioned for this type of query. In my calls below, I am selecting for only the DOI and its title. I want to limit the metadata that is returned to me to only these two elements, so I don’t have to sift through all of the metadata elements for these DOIs. I am also expanding the number of rows returned to 1000, since I know I have a number of DOIs registered against this ISSN (the default rows returned are 20). And, finally, I am adding my email address, because I am comfortable sharing it and thus being Polite. This means my query will hit the Polite pool of the REST API:

Here’s a list of DOIs that do not have references registered against them for DOIs with ISSN 01988220 registered in the metadata: https://0-api-crossref-org.libus.csd.mu.edu/journals/01988220/works?filter=has-references:false&select=DOI,title&rows=1000&mailto=support@crossref.org

Here’s a list of DOIs that have references registered against them for DOIs with ISSN 01988220 registered in the metadata: https://0-api-crossref-org.libus.csd.mu.edu/journals/01988220/works?filter=has-references:true&select=DOI,title&rows=1000&mailto=support@crossref.org

If I wanted to search across an entire prefix, I would use these queries:

DOIs with no references registered on prefix 10.5555
https://0-api-crossref-org.libus.csd.mu.edu/prefixes/10.5555/works?filter=has-references:false&select=DOI,title&rows=1000&mailto=support@crossref.org

DOIs with references registered on prefix 10.5555
https://0-api-crossref-org.libus.csd.mu.edu/prefixes/10.5555/works?filter=has-references:true&select=DOI,title&rows=1000&mailto=support@crossref.org

From here, most of our members use this information to register references for those DOIs that are missing references. For those of you wanting to do the same, our Simple Text Query form is a great place to register references for existing DOIs. You can learn more here: Adding references to your metadata record - Crossref

Thanks for reading,
Isaac