To provide an authenticity discriminating medium necessary for preventing the forgery and the counterfeiting of a bank bill, a passport, securities, a card, a stamp and the like.

The authenticity discriminating medium P1 has a substrate 1 provided with protruded areas A which are in the same color as the substrate 1 or transparent, and are formed of a first area, a second area, and the nth area (wherein n denotes an integer). The respective areas are different in a swelling amount of the protruded areas, furthermore, the protruded areas are formed of a printing ink, and a light translucent layer is provided in close contact with the protruded areas.