Core Data means data, which is maintained by the Consumerium-organisation and therefore any disinformation, inaccuracies and false information will erode the Social capital of the Consumerium-organisation

The normative copy is located on the Core Servers, though it may be mirrored to other places to increase performance.

It is mostly made of undisputable facts (eg. The Republic of Finland is a sovereign country, it's TLD is "FI" and it's ISO 3166-1 code is "FI" and the official languages in ISO 639 are "fi" and "sv" ... and so forth)