.. _cnum.json#/:

cnum
====

.. container:: title

 CNUM identifier of the conference

The CNUM is based on the starting day of the conference, with an extra
number appended to distinguish conferences starting on the first day.

:example: The first conference (in order of creation on Inspire) starting
    on December 25, 1987 has CNUM ``C87-12-25`` whereas, say, the third
    one, has CNUM ``C87-12-25.2``

:type: ``string``

:pattern: ``^C\d\d-\d\d-\d\d(\.\d+)?$``

:minLength: ``1``