AI decodes 217-year-old Napoleonic letter in 6 hours

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1. 2h ago

   AI decodes 217-year-old Napoleonic military cipher in six hours

   Carter Church, an AI engineer at SentinelOne, used the GPT-6 Astra model to decipher a secret military letter from 1809 that remained unsolved for 217 years. The AI processed a blurry scan and cracked the code in approximately six hours. The decoded message was sent from the headquarters of Eugene de Beauharnais to General Auguste de Marmont and contains strategic details regarding French and allied troop positions prior to a conflict with Austria.

   Why it matters

   Napoleon Bonaparte used these ciphers to convey sensitive war orders and strategic information. The ability of modern AI to resolve centuries-old encryption in hours demonstrates a significant leap in linguistic and cryptographic capabilities.

   What is confirmed

   • An AI model decoded a 217-year-old Napoleonic letter in six hours.
   • The cipher was cracked using GPT-6 Astra.
   • Carter Church, an engineer at SentinelOne, performed the decryption.
   • The message was sent from Eugene de Beauharnais's headquarters to General Auguste de Marmont.
   • The letter dates back to 1809.

   Still unconfirmed

   • The decoded message details French and allied troop positions before war with Austria.
   • The AI used a blurry scan to crack the code.

   What to watch next

   • Verification of the decoded text by historians
   • Application of GPT-6 Astra to other unsolved historical ciphers
   Sources used for this update (21)

   1. The Telegraph — Napoleon’s 217-year-old coded message ‘cracked by AI’
   2. The Times — Napoleon’s centuries-old code cracked by AI in six hours
   3. calcalistech.com — SentinelOne AI researcher uses GPT-6 Astra to crack Napoleon cipher after 217 years
   4. Euronews.com — AI decodes 217-year-old Napoleonic letter in 6 hours
   5. NDTV — Napoleon's 217-Year-Old Mysterious Letter Cracked Using AI In 6 Hours
   6. Newser — AI Cracks 217-Year-Old Napoleon Cipher
   7. livescience.com — 'A kind of Rosetta Stone': AI decodes 217-year-old secret letter ordered by Napoleon
   8. dev.ua — GPT-6 Astra helped decipher a Napoleonic military letter that remained unread for 217 years
   9. Inshorts — GPT-6 Astra cracks Napoleon's 217-year-old secret letter in 6 hrs | AI recently decoded a 1941 German army message | Inshorts
   10. The Times — Now AI has cracked Napoleon’s code, can it solve other mysteries?
   11. vocal.media — A 217-Year-Old Napoleon Cipher Was Finally Cracked. It Took AI Six Hours.
   12. The Times of India — In 1809, Napoleon Bonaparte sent a coded message to his general; it remained mysterious for 217 years until AI cracked the meaning in 6 hours
   confidence 90%