Fewer citations than expected

Hi, we’re starting to explore the PID Graph to extract citation metrics for our DataCite DOIs, but we’re finding citations we know exist are not being reported and differences with DataCite Commons.

For example using https://doi.org/10.23637/KeyRefOABKyields. If I query the GraphQL API using the following (based on PID form blog post) I get 0 citations. If use DataCite Commons to search the DOI, I get 2 citations, including 1 crossref which is what I’m really after, but I know of two other papers that have cited the DOI in their references (e.g. https://doi.org/10.3389/fpls.2020.01157), so I’m unclear why these aren’t appearing? As I’m getting a result from Commons am I right to assume there is an error in my GraphQL query?

    {
      work(id: "https://doi.org/10.23637/KeyRefOABKyields") {
        id
        types {
          resourceType
        }
        publisher
        publicationYear
        creators {
          id
          name
          affiliation {
            name
          }
        }
        titles {
          title
        }
        citationCount
        formattedCitation(style: "vancouver")
        citations(first: 50) {
          nodes {
            id
            types {
              resourceType
            }
            publisher
            publicationYear
            creators {
              id
              name
              affiliation {
                name
              }
            }
            titles {
              title
            }
            citationCount
            formattedCitation(style: "vancouver")
          }
        }
      }
    }

thanks,
Richard

Richard, unfortunately the DataCite GraphQL API provides only incomplete information. That is partly because tracking citations is inheritently difficulty, partly because there are currently technical issues at Crossref providing information about cited DataCite DOIs in their metadata, and most importantly internal at DataCite, making all information in the Event Data service available in the GraphQL API. There is unfortunately no easy fix, but we have planned significant work at DataCite to improve this until July.

The DataCite Event Data service, used by the GraphQL API, unfortunately has no citation information about this DOI: https://api.datacite.org/events?doi=10.23637/KeyRefOABKyields