Let's Crack Zodiac - Episode 6 - How was the 340 made?

In early December 2020, we discovered the solution to the Zodiac’s famous 340-character cipher.
But how did he make the cipher?
I tried to explore that question in this video. I also explore the impact of the news of the solve, efforts to confirm the solution, and various interesting odds and ends about the cipher.

Mailing list, comments, requests: doranchak@gmail.com

Correction at 3:26: it's Ukraine, not Russia.

Video Links:

Collection of news reports: http://zodiackillerciphers.com/wiki/index.php?title=Compilation_of_news_reports_about_the_solution
Nils Kopal: Cryptography for Everybody: https://www.youtube.com/channel/UC8_FqvQWJfZYxcSoEJ5ob-Q
Kevin Knight: 3n+1 Conjecture: https://www.youtube.com/watch?v=PzFIg41Igqs
George Lasry: https://scholar.google.com/citations?user=0Fb5oOMAAAAJ&hl=en&oi=ao
https://www.linkedin.com/in/georgelasry
zkdecrypto: https://code.google.com/archive/p/zkdecrypto/
Nick Pelling’s Cipher Mysteries: http://ciphermysteries.com
Bill Briere: https://www.linkedin.com/in/codes/
Cryptologic History Symposium: https://cryptologicfoundation.org/what-we-do/educate/conferences/symposium.html
Fritz Reichmann: http://www.zodiackillersite.com/viewtopic.php?p=83204#p83204
Daikon: http://www.zodiackillersite.com/viewtopic.php?p=39003#p39003
Scytale encoder/decoder: https://www.dcode.fr/scytale-cipher
Cipher Explorer: http://zodiackillerciphers.com/cipher-explorer/
Zodiac Cipher Web Toy: http://zodiackillerciphers.com/webtoy/
AZDecrypt: http://www.zodiackillersite.com/viewtopic.php?t=3198
Jarl almost finding the solution: http://zodiackillersite.com/viewtopic.php?f=81&t=4805
Shawn’s Belli observation http://www.zodiackillersite.com/viewtopic.php?p=82822#p82822

Credits:

Subscribe button https://www.youtube.com/watch?v=UaV7w4fMtFE
Email animation https://www.youtube.com/watch?v=4WMt0w6bEc8
Postal footage https://www.youtube.com/watch?v=JbtQD452TdU
Time capsule https://www.youtube.com/watch?v=YRWerw7i8Ao
Scary wind https://www.youtube.com/watch?v=KNVoPBXCHeA
Earth rotating https://www.youtube.com/watch?v=qailTbCEuuA
Psycho shower theme https://www.youtube.com/watch?v=Me-VhC9ieh0
Light leaks https://www.youtube.com/watch?v=V1HrYQZFHoE
Matrix rain https://www.youtube.com/watch?v=J2qDRJdTGow
Nils https://www.youtube.com/watch?v=jpc6fvQU054
Kryptos: https://www.youtube.com/watch?v=CwdUwevayRU
Transition https://www.youtube.com/watch?v=q1JB2uIpwL0
Chess board https://lichess.org/editor
Chess background https://www.youtube.com/watch?v=yRbS56UFrSY
Scytale: https://commons.wikimedia.org/wiki/File:Skytale.png
Random text https://www.youtube.com/watch?v=yqyTXTSr5EE
Mouse sound https://www.youtube.com/watch?v=fVblvdRT76E
Light bulb https://giphy.com/gifs/animated-gif-motion-graphics-26BRAmywAN0PI0JyM
Scissor sound https://www.youtube.com/watch?v=-H5TtjUtQOE
Exclamation point https://giphy.com/gifs/3ov9k0ExnKPTAfbOww
Beautiful Mind decrypt scenes https://www.youtube.com/watch?v=aLj8WCO-2QI https://www.youtube.com/watch?v=oAFDvO52cxI
Always sunny? https://www.youtube.com/watch?v=_nTpsv9PNqo
David Kahn, “The Codebreakers”: Unicity distance info from p750
Coffin Dance https://www.youtube.com/watch?v=j9V78UbdzWI
Mac RAM https://favpng.com/png_view/ddr3-sdram-laptop-macbook-pro-mac-mini-ram-png/sXFRMMCZ#_=_
Old computers https://www.youtube.com/watch?v=OsHMaTJ9CX0
Enigma https://www.youtube.com/watch?v=mwFWMM9APLs
Number animation https://loading.io/animation/text/
Server room https://www.youtube.com/watch?v=NeESf9aCZHQ
Jim Dunbar and Melvin Belli https://www.youtube.com/watch?v=oTJI4VMu5Os
TV static https://www.youtube.com/watch?v=rZhbnty03U4
Padlock https://giphy.com/gifs/mobile-phone-iphone-3og0IuymsB9sy0C2Vq
Padlock sounds https://freesound.org/people/SpaceJoe/sounds/342704/ https://freesound.org/people/SpaceJoe/sounds/342702/
Goose by Gabrielle Genevieve https://www.artstation.com/artwork/WKGGmQ
Goose sounds https://www.youtube.com/watch?v=6pbCr577RI0
Pop sound https://www.youtube.com/watch?v=3hPVv6boahw
Gentle whoosh https://www.youtube.com/watch?v=sWj2WXr3ayw
“Difficult Decisions”, music from ZapSplat.com
Page turn https://www.soundjay.com/page-flip-sounds-1.html
Server room sound https://www.youtube.com/watch?v=NeESf9aCZHQ
Electrical switch sound https://freesound.org/people/joedeshon/sounds/364200/
Teletype sound https://freesound.org/people/stratcat322/sounds/169259/
Control knob sound https://freesound.org/people/Ninafoletti/sounds/256293/
Bombe sound https://www.youtube.com/watch?v=Hb44bGY2KdU
Box open sound https://freesound.org/people/dkiller2204/sounds/422975/
Typewriter sound https://freesound.org/people/Nox_Sound/sounds/550340/
Plug sound https://freesound.org/people/marco_luzi/sounds/426689/
Button click sounds https://www.zapsplat.com/
Airplane sound https://www.youtube.com/watch?v=B-i4VRyNIKo
Outdoor sound https://freesound.org/people/seth-m/sounds/269782/
Chess sounds https://freesound.org/people/BiancaBothaPure/sounds/437486/ https://freesound.org/people/Sunejackie/sounds/542394/

Видео Let's Crack Zodiac - Episode 6 - How was the 340 made? канала David Oranchak