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Take a look at the topics on the right to browse and page through our documentation, or search using the box above the topic list Common questions; how do I…? Construct DOI suffixes Verify a metadata registration Update an existing metadata record Interpret and act on reports Query the API to retrieve metadata See system status and maintenance If you have questions please consult other users on our forum at community.crossref.org or open a ticket with our technical support team where we’ll reply within a few days. Please also visit our status page to find out about scheduled (and unscheduled) maintenance and subscribe to updates.