Grail includes a standard extension that enables support for URIs of the following form:
hdl:authority/path
Such URIs are called "handles". They are part of a URN scheme, the Handle System, implemented by CNRI. See the Handle System home page for more information on handles and the Handle System.
Here are some example handles, pointing to the issues of D-Lib Magazine. They point to pages that contain more handles.
Note: These links will only work if your browser is handle-enabled (e.g. Grail)!
Here are some more example handles, pointing to Python and Grail information resources: