2020 wasn’t all bad. In April of last year, we released our first public data file. Though Crossref metadata is always openly available––and our board recently cemented this by voting to adopt the Principles of Open Scholarly Infrastructure (POSI)––we’ve decided to release an updated file. This will provide a more efficient way to get such a large volume of records. The file (JSON records, 102.6GB) is now available, with thanks once again to Academic Torrents.
Our colleague and friend, Kirsty Meddings, passed away peacefully on 10th December at home with her family, after a sudden and aggressive cancer. She was a huge part of Crossref, our culture, and our lives for the last twelve years.
Kirsty Meddings is a name that almost everyone in scholarly publishing knows; she was part of a generation of Oxford women in publishing technology who have progressed through the industry, adapted to its changes, spotted new opportunities, and supported each other throughout.
Crossref has supported depositing metadata for preprints since 2016 and peer reviews since 2018. Now we are putting the two together, in fact we will permit peer reviews to be registered for any content type.
2020 has been a very challenging year, and we can all agree that everyone needs a break. Crossref will be providing very limited technical and membership support from 21st December to 3rd January to allow our staff to rest and recharge. We’ll be back on January 4th raring to answer your questions. Amanda explains more about why we made this decision.
We test a broad sample of DOIs to ensure resolution. For each journal crawled, a sample of DOIs that equals 5% of the total DOIs for the journal up to a maximum of 50 DOIs is selected. The selected DOIs span prefixes and issues.
The results are recorded in crawler reports, which you can access from the depositor report expanded view. If a title has been crawled, the last crawl date is shown in the appropriate column. Crawled DOIs that generate errors will appear as a bold link:
Click Last Crawl Date to view a crawler status report for a title:
The crawler status report lists the following:
Total DOIs: Total number of DOI names for the title in system on last crawl date
Checked: number of DOIs crawled
Confirmed: crawler found both DOI and article title on landing page
Semi-confirmed: crawler found either the DOI or the article title on the landing page
Not Confirmed: crawler did not find DOI nor article title on landing page
Bad: page contains known phrases indicating article is not available (for example, article not found, no longer available)
Login Page: crawler is prompted to log in, no article title or DOI
Exception: indicates error in crawler code
httpCode: resolution attempt results in error (such as 400, 403, 404, 500)
httpFailure: http server connection failed
Select each number to view details. Select re-crawl and enter an email address to crawl again.
Page owner: Laura J. Wilkinson | Last updated 2020-April-08