BTW some papers aren't going to make you change your identity. If I write on a paper the word "table" and stick it on a tree, it will not stop being a tree.
That only speaks of the legal gaps and precariousness of each country. If they decide to relocate the org to the USA to facilitate inter-company commissions, it'll appear as an American org for the banking operations, that's how easy it is to make it from one country or another on some specific terms, in a superficial way.
We all know that the org is Spanish, with a Spanish CEO and founder, with its origin in Spain... Valencia won't stop being a Spanish team and city just because Peter Lim bought it... (not even comparable either, because ocelote still is the ceo)