Editing Openai/692c8201-7a4c-800d-9ca0-5220fef3e400 (section)

=== User: Thank you for the detailed citations and the reconstructive demo—it's helpful for understanding the arithmetic. ===
Thank you for the detailed citations and the reconstructive demo—it's helpful for understanding the arithmetic. To get as close as possible to the originals without archival access, please proceed immediately with option A: Search the NSA FOIA catalog (including the 1995–1996 Venona release packets, the National Security Archive's NSAEBB series, and any declassified Arlington Hall case files) for a specific FOIA document or PDF that contains an internal Venona worksheet image or scan showing ciphertext 5-digit groups, reused pad additives, and digit-by-digit subtraction arithmetic. Provide:
The exact FOIA document ID, file name, and download link (e.g., from nsarchive.gwu.edu or nsa.gov/foia).
Page numbers and section where the worksheet appears.
A verbatim transcription of the worksheet's arithmetic: Include the specific ciphertext groups, pad fragments, mod-10 subtractions (digit-by-digit with intermediate steps), recovered code groups, and any codebook mappings or partial plaintext shown.
If no such public FOIA document with a worksheet is found after your search (cite what you checked), immediately fall back to option B but make it fully concrete: Using actual published ciphertext or code groups from a specific declassified message (e.g., New York KGB message No. 954, 20 Sept 1944, from the Wilson Center/Library of Congress 'Venona-New-York-KGB-1944.pdf'—pull the raw groups or footnotes if available), reconstruct a step-by-step decryption with:
Real or cited ciphertext 5-digit groups from that message.
A consistent pad fragment (5-digit, mod 10).
Full digitwise subtraction table for all groups.
Codebook mapping to the published plaintext words (e.g., from footnotes or context in the PDF).
Final assembled English plaintext.
Stick to declassified sources only, and provide PDF page citations for verification."