Hi Pablo, maybe using a catalouging plugin for 001 could be a solution. There are some plugins for the stocknumber/inventory number field in the item, that are made to autogenerate different kinds of sequential numbers, that could be a starting point for this. stocknumberAV.pl, for example, uses the authorised value "INVENTORY" for storing the last number used and avoids generation of duplicate numbers this way. Hope this helps, Katrin Am 15.09.2015 um 01:07 schrieb Pablo Bianchi:
Would you use this differently from the Koha record number in the 999 $c field?
​Yes. In fact we already have a control number on old records because they come from a migration, and this numbers could overlap with biblionumber (999$c). That's why ​​bug 9921 is not useful for us. We need on 001 a unique record number that is not equal neither with OCLC control number nor Koha's biblionumber.
Cheers, Pablo _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz https://lists.katipo.co.nz/mailman/listinfo/koha