Which of those would you like next?
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Other technical references are more specific. One source describes a device developed by Professor Hisatomo Harima at (located in the Kansai region) designated as "K93n Na1 Kansai 99" , which it identifies as precision engineering equipment for high-quality apparel production. This reinforces the idea that the core of the code functions as a legitimate, albeit obscure, industrial or technical identifier.
In the pre-streaming era, and continuing today in piracy circles, file names needed to be descriptive enough for users to find what they were looking for, but often cryptic enough to evade keyword filters used by internet service providers and copyright enforcement bots. A file named simply "Kansai Chiharu" would be too vague to identify the specific scene among hundreds of her works. Conversely, a file named only "K93n-118" might be unrecognizable to a casual searcher. Therefore, the combined string serves as a "best of both worlds" identifier: it contains the technical ID for accuracy and the name for recognition.
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