The identifier MUST be an URI. Some repositories can make use of registered URIs, e.g., in the Netherlands the repositories can make use of National Bibliography Numbers. If a repository doesn't have access to registered URIs, UUIDs or TAGs can be used. More information about UUIDs can be found at \[http://en.wikipedia<ac:structured-macro ac:name="anchor" ac:schema-version="1" ac:macro-id="dd555508723695e1-27a467ad-465947cb-822d8e50-593c6b18805e8e3426745f31"><ac:parameter ac:name="">_Hlt190750088</ac:parameter></ac:structured-macro><ac:structured-macro ac:name="anchor" ac:schema-version="1" ac:macro-id="1104b564be89e33e-f9f88d0e-4deb4535-99c9846c-09117e7b2805ac4532707b20"><ac:parameter ac:name="">_Hlt190750089</ac:parameter></ac:structured-macro>.org/wiki/UUID\|http://en.wikipedia.org/wiki/UUID\] and for TAGs the best starting point is [http://www.taguri.org/|http://www.taguri.org/]. TAGs for the repository of Tilburg University could be constructed in the following way. All TAGs start with 'tag:uvt.nl,<year>:<record id>'. <year> is the year that the compound object entered the repository. The URIs for MODS records can look like 'tag:uvt.nl,<year>:<record id>/mods' and the URIs for object files can look like 'tag:uvt.nl,<year>:<record id>/<file id>'. |