A small class for generating and validating Internation Standard Name Identifiers (ISNI). This will also work just fine with ORCID, a subset of ISNI.

gem install isni

ISNI.new("000000029534656X").valid?
=> true

ISNI.valid?("000000029534656X")
=> true

ISNI.valid?("0000000295346560")
=> false

ISNI.complete("000000029534656")
=> "000000029534656X"

ISNI.new("000000029534656X").to_s
=> "0000-0002-9534-656X"

• en.wikipedia.org/wiki/International_Standard_Name_Identifier

• orcid.org/

• support.orcid.org/knowledgebase/articles/116780-structure-of-the-orcid-identifier

Source code is publicly available @ github.com/yob/isni. Patches welcome, preferably via a git repo I can pull from.