In its latest proposal to regulate virtual currencies, the Commission of the European Union suggests that the fourth directive prevention of money laundering (4AMLD) that can lead to the creation of a central database of users coin a new amendment digital (VC Central User Database).
This proposal indicates that the Commission should, by June 2019, provide a report on the implementation of this amendment should include "appropriate proposals, including, where appropriate, with respect to digital coins, samples set up a base central database for recording user identities and addresses accessible to FIUs portfolio as well as self-declaration forms for users to use digital currencies ".
One might speculate that the way to accomplish this would be linking a public key to the identity of a user, which would allow the Financial Intelligence Units (FIU) realizasen its investigations and monitor the movement of money. Therefore, the utopian idea of anonymous criptomonedas as coins would use only as a memory.
However, we should see what would happen to the information in this database, as identifying a public key to the identity of a user would be visible all transactions; which would be contrary to the fundamental privacy rights of every citizen.