Wednesday, August 23, 2017
Happy 1 billionth OCN!
On August 8, 2017, OCLC announced on the OCLC-CAT listserv that the OCLC Control Number (OCN) has reached 1 billion. The OCLC Control Number is a unique, sequentially assigned number when a new record is created or imported into WorldCat. The one billionth assigned OCN was for the record of a digitized image from Chiba University Library in Chiba, Japan.
Make sure your library system can handle the longer OCN. For more information check www.oclc.org/support/services/batchload/controlnumber/...