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A prefix and suffix giving a permanent handle to a document.
Also known as: Digital object identifier, Persistent identifier
A digital object identifier is a permanent name for a document, resolved through a registry rather than through a web address. Its point is that it survives a publisher moving or renaming its site, which ordinary links do not.
Names a document permanently through a registry-resolved identifier of a prefix and a suffix separated by a slash.
Contexts: History
Survives a change of publisher or web address, since the registry rather than the link is what points at the current location.
Contexts: History
The three letters doi followed by a colon, a numeric prefix, a slash and an alphanumeric suffix.