A laminate (1, 20) comprising: a first laminate member; a second laminate member; and a hidden print (2, 21, 42) formed by printing invisible ink between the first laminate member and the second laminate member, wherein the hidden print (2, 21, 42), disposed between the first laminate member and the second laminate member, is configured to absorb electromagnetic radiation outside a visible range, and is such that when irradiated with electromagnetic radiation outside the visible range that has passed through at least one of the first laminate member and the second laminate member, the hidden print (2, 21, 42) absorbs the electromagnetic radiation to thereby show a sign, and, when irradiated with visible light, the hidden print does not show the sign, and wherein the second laminate member includes a first surface in contact with the hidden print (2, 21, 42), and a second surface, which is a surface opposite to the first surface, characterized in that the laminate further comprises: a chromogenic laminate member that is in contact with the second surface and exhibits color when irradiated with a laser beam; a security patch that is located on a surface of the chromogenic laminate member on a side opposite to that in contact with the second surface of the second laminate member; and a protective laminate member that covers the security patch and transmits light in a visible range, and in that the laminate (1, 20) has the following further feature I) or II): I) the hidden print (2, 21, 42) includes a first code including predetermined information, the chromogenic laminate member includes a second code including predetermined information as a part that develops color when irradiated with the laser beam, the second code being different from the first code, and one of the first code and the second code includes information to be authenticated, whereas the other one of the first and the second code includes information for authenticating the information to be authenticated; II) the chromogenic laminate member includes a first partial code as a part that develops color when irradiated with the laser beam, the hidden print (2, 21, 42) includes a second partial code, and the first partial code and the second partial code form one code. a first laminate member; a second laminate member; and a hidden print (2, 21, 42) formed by printing invisible ink between the first laminate member and the second laminate member, wherein the hidden print (2, 21, 42), disposed between the first laminate member and the second laminate member, is configured to absorb electromagnetic radiation outside a visible range, and is such that when irradiated with electromagnetic radiation outside the visible range that has passed through at least one of the first laminate member and the second laminate member, the hidden print (2, 21, 42) absorbs the electromagnetic radiation to thereby show a sign, and, when irradiated with visible light, the hidden print does not show the sign, and wherein the second laminate member includes a first surface in contact with the hidden print (2, 21, 42), and a second surface, which is a surface opposite to the first surface, a chromogenic laminate member that is in contact with the second surface and exhibits color when irradiated with a laser beam; a security patch that is located on a surface of the chromogenic laminate member on a side opposite to that in contact with the second surface of the second laminate member; and a protective laminate member that covers the security patch and transmits light in a visible range, and in that the laminate (1, 20) has the following further feature I) or II): I) the hidden print (2, 21, 42) includes a first code including predetermined information, the chromogenic laminate member includes a second code including predetermined information as a part that develops color when irradiated with the laser beam, the second code being different from the first code, and one of the first code and the second code includes information to be authenticated, whereas the other one of the first and the second code includes information for authenticating the information to be authenticated; II) the chromogenic laminate member includes a first partial code as a part that develops color when irradiated with the laser beam, I) the hidden print (2, 21, 42) includes a first code including predetermined information, the chromogenic laminate member includes a second code including predetermined information as a part that develops color when irradiated with the laser beam, the second code being different from the first code, and one of the first code and the second code includes information to be authenticated, whereas the other one of the first and the second code includes information for authenticating the information to be authenticated; the chromogenic laminate member includes a second code including predetermined information as a part that develops color when irradiated with the laser beam, the second code being different from the first code, and one of the first code and the second code includes information to be authenticated, whereas the other one of the first and the second code includes information for authenticating the information to be authenticated; II) the chromogenic laminate member includes a first partial code as a part that develops color when irradiated with the laser beam, the hidden print (2, 21, 42) includes a second partial code, and the first partial code and the second partial code form one code.