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Laplace's Lobotomy Mystery Cache

Hidden : 6/13/2021
Difficulty:
5 out of 5
Terrain:
1.5 out of 5

Size: Size:   micro (micro)

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Geocache Description:


The geocache is not at the posted coordinates. Solve the puzzle below to obtain the correct coordinates.


3j(ˆNUL8hxˆBS`BSNULNUL

0 0 21 127 576 3041 12779 70041 295239 1319895 5615124 23634903 113246208 452984832

let r = 2; let mod = 200


What you will need to solve this puzzle:

- Patience and time

- An unwavering love of mathematics 

- Proficiency in differential equations and basic CS skills

What you will need to do to solve this puzzle:

- Do not mindlessly guess / bruteforce ciphers until the puzzle is solved. The cipher used for this puzzle exists in few places across the internet. Use the information available to you to determine your best course of action.

- Ensure that you are solving this puzzle on a system that can properly display ASCII. 

- Consider the properties of the hyperbolic cosine function (particularly when multiplied by t).


I don't normally enjoy ciphers, but I find this one particularly unique and interesting to learn about. You have been given all of the information that you will need to solve this puzzle, but it may be helpful to do your own research. Good luck!

Additional Hints (Decrypt)

1. NFPVV 2. % 3. Y^-1 4. ∞ 5. NFPVV

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)