The Danish personal registration number, commonly referred to as the CPR number, reached the milestone of 50 years since its introduction on Monday. But the future of the personal numbers, which are assigned to everyone registered as living in Denmark, may be more far-reaching than during their first half-century, according to an analyst. “I think that, in the future, we will see an extra register that also contains people’s identity on digital media, and that it will be linked to the CPR number,” said Copenhagen Business School professor and researcher in public IT systems Kim Normann Andersen. “The government will...