Field IDMB

It serves to find out the original personal identification in case the person received NID (alternative identification number) in case of duplicity. This identification is not unique. It contains:
- the birth number (9-digits birth number is padded on the right with a space) for Czech individuals,
- IC (organization identification number) for Czech legal entities,
- the birth date in format yyyymmdd for foreign individuals,
- the foreign identification number for foreign legal entities.