Blue OTP messages are encrypted texts exchanged between the characters, and one of the main sources of the story. The system these originate from is called XORFS, after the cipher used: XOR.

The characters view these messages using a terminal. We, however, may find them only on AS32 under the agent codes 18xxx. On each of these agent codes, a text-to-speech voice says:

1. “Blue OTP 1 file start”
2. A series of hexadecimal numbers, with letters A to F spelled using NATO phonetics
3. “Offset” followed by the byte position of the key

“Blue OTP 1” is the file otp-blue-1.bin (1 GB) from the El Paso drop; the keys are fragments of that file.

• 18000–18049 (Sep–Oct 2022)
• 18050–18099 (Oct 2022–Jan 2023)
• 18100–18149 (Jan–May 2023)
• 18150–18199 (May–Jul 2023)
• 18200–18249 (Jul–Aug 2023)
• 18250–18299 (Aug 2023)
• 18300–18349 (Aug 2023–Sep 2023)
• 18350–18399 (Sep 2023)
• 18400–18449 (Sep 2023)
• 18450–18499 (Sep 2023–Oct 2023)
• 18500–18549 (Oct 2023)
• 18550–18599 (Oct 2023)