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Metadata for all DOIs in Crossref: JSON MongoDB exports of all works from the Crossref API

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posted on 05.04.2017, 15:03 by Daniel Himmelstein, Kurt Wheeler, Casey Greene
crossref-works.json.xz contains Crossref metadata for 87,542,370 DOIs retrieved by querying works from the Crossref API.

Queries began on 2017-03-21 and completed on 2017-04-02. The process died or stalled several times, but was restarted using the API's cursor. Accordingly, the works should represent the Crossref database as of 2017-03-21.

crossref-works.json.xz is an xz-compressed file of exported works from MongoDB. It was created using mongoexport and can be imported into MongoDB using mongoimport. The file as a whole is not actually valid JSON. However, each line of the file is valid JSON and encodes a single work retrieved from the Crossref API. Accordingly, you can read this file without mongoimport by splitting at newlines and parsing each line as JSON.

See for more information. The versioned shortDOI for this figshare article is


Gordon and Betty Moore Foundation's Data-Driven Discovery Initiative: GBMF4552