Editorial: 20 Years of Persistent Identifiers – Applications and Future Directions
Abstract
Persistent identifiers (PID) have existed for more than 20 years and have become well established as a means for identifying literature and data on the web. They were invented to address the problem of disappearing internet links, also known as “link rot”, which was seen as undermining the emerging digital record of science. A number of PID systems have since been developed, and their utility for the management of the scientific record has been reviewed. Since the initial launch of the Handle System, we have seen many more uses for persistent identification, besides literature and data.
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