42 Computer services, namely, authentication for others images, namely, still images and moving pictures, so as to ascertain whether such images have been altered; computer services, namely, embedding, detecting and extracting data for others in such images;computer services, namely, providing via electronic mail and online transmission user manuals, instructional materials and brochures pertaining to computer software for authenticating images, namely, still images and moving pictures, so as to ascertain whether such images have been altered; and computer services, namely, providing via electronic mail and online transmission user manuals, instructional materials and brochures pertaining to computer software for embedding, detecting and extracting data in such images