Genuine check, loyalty program and special promotions The unique serialization code is also usable for direct consumer loyalty programs and special promotions. As the unique printed code is sleeved in the inner-package the end-user can only read and check the code. A direct marketing-hit. By checking end-users obtain full confidence in the products food safety and authenticity of the product. Kortho genuine check integration The unique check number is created using a centralized serialization-database with encrypted numbers generated with secret keys.