Hi, On Thu, Dec 20, 2018 at 12:50 PM Sebastian Hammer <[log in to unmask]> wrote: > But I wonder if anyone has tried this and experienced problems with MARC > consumers croaking on something like > > 001 123e4567-e89b-12d3-a456-426655440000 I think I remember previously running across MARC records that had UUIDs in the 001 field, though I don't have any examples handy. In any event, such records wouldn't present a problem for either Koha or Evergreen systems to ingest. Regards, Galen -- Galen Charlton Implementation and Services Manager Equinox Open Library Initiative phone: 1-877-OPEN-ILS (673-6457) email: [log in to unmask] web: https://equinoxInitiative.org direct: +1 770-709-5581 cell: +1 404-984-4366