For being entitled to or for maintaining the entitlement to a benefit in cash according to the legislation of one or both Contracting Parties a claimant is obliged to identify himself or herself towards the institution of the place of residence or of temporary stay by way of an official identification card. This institution duly identifies the person on presentation of his or her identification card. An identification card is a passport or another valid identification document delivered by the competent authority of the place of residence. The institution informs the other institution that the identity has been duly verified, by sending a copy of the identification card.