This is a production serial number or "code." Most Japanese media is indexed using these alphanumeric codes to help collectors and databases track specific releases.
At the heart of the mystery was a 25-year-old digital artist, Akira Nakahara, known only by her handle "avi dioguitar23." A whispered legend among Tokyo's online communities, Akira was rumored to possess unparalleled coding skills and an obsession with reimagining urban spaces. tokyohot n0679avi dioguitar23 updated