(12)It is necessary to clarify that a UCITS should appoint a single depositary having general oversight over the assets of the UCITS. Requiring that there be a single depositary should ensure that the depositary has an overview of all the assets of the UCITS and both fund managers and investors have a single point of reference in the event that problems occur in relation to the safekeeping of assets or the performance of oversight functions. The safekeeping of assets includes holding assets in custody or, where assets are of such a nature that they cannot be held in custody, verification of the ownership of those assets as well as record-keeping for those assets.