In order to determine the entitlement to benefits and legitimacy of payments under the legislation of a Contracting Party, a person who falls under the scope of this Agreement is obliged to identify himself by submitting an official proof of identity to the competent institution of the Contracting Party in whose territory he resides or stays. The competent institution identifies the beneficiary or a member of his family on the basis of this identification. Identification includes a passport or any other valid proof of identity issued by an agency of the other Contracting Party. The competent institution will inform the competent institution of the other Contracting Party that the identity of the beneficiary, or a member of his family, has been verified by sending an authenticated copy of the identification document.