May 22, 2022

Milestones: DOI System Reaches 100 Million Registrations

From DOI News:

The 100 millionth DOI has now been assigned, via the Entertainment Identifier Registry, a DOI-based registry of universal unique identifiers for movie and television assets. This significant milestone builds on earlier growth. The ten millionth DOI was assigned in August 2003 via another major Registration Agency, CrossRef, as a persistent, interoperable, and extensible identifier to a technical article in a journal; and the millionth DOI was assigned in April 2000. DOIs are assigned by a growing federation of Registration Agencies across a variety of content sectors and language areas, and are in use by over 12,000 registrants. For further information, see DOI Registration Agencies & Entertainment Identifier Registry.

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About Gary Price

Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.