It is another Zodiac cipher that requires a small but evidence backed correction in interpretation to fully solve.  He made a mistake in terminology.

IN THREE AND THREE EIGHTHS RADIANS TEN is the personally confirmed solution to the Mount Diablo code.  Cracked after 55 years by computer wizard David Stampher using spherical trigonometry.

Code:  https://github.com/dstampher/zodiac-z32-cipher

Website:  https://inthreeandthreeeighthsradiansten.com

Aerial drones with GPR scanners already exist.

In the future they will just send one to the triangle and it will scan it automatically

For now we must wait for the humans.

Either way, David Stampher is the finder of the triangle.  That has already been established thankfully.

They can actually do subsurface scans with satellites as well.  Although you will need to be closer to the ground to get a more accurate reading.  Still, it can be done from space.

Just waiting around still basically maybe they’ll check it out tomorrow only time will tell.

Well I think at 1300 posts, and over a month of daily spamming of my thread, which contains the personally confirmed solution to the Mount Diablo code, I can safely say that objective falsification will not be arriving here, as is true for the other places I have shared this with.

I suppose I should leave with a wrap up post, and keep it short.

IN THREE AND THREE EIGHTHS RADIANS TEN is the personally confirmed solution to the Z32 cipher.  Solved by me, David Stampher, in December 2025.  My whitepaper and code are public and fully reproducible.  The landmark I found exists in the real world, and you may see it yourself by running the code I have shared with the world.

When I started working on this cipher, I had no idea I would actually solve it.  I did not have the expectation.  I just wanted to give it a try, using modern techniques.  It was a side quest.  This seems to have paid off.

Despite being the finder of the 100 foot equilateral triangle landmark by Lake Herman Road, which points north, and appears in aerial photography as a soil disturbance in 1968, and is placed 0.15 degrees off from the exact 10 o’ clock radial from the Mount Diablo origin, and matches the first triangle ciphertext symbol when overlaid (no rotation, uniform scale), and happens to be placed right next to the projected location derived from decoded plaintext I cracked with my code, my work has (generally) been censored, met with silence, and faced subjective debunks, such as claiming the triangle landmark is natural in origin, and so everything else is wrong.  I disagree with that, obviously.

And so now I move on to more receptive audiences.  I posted some great GIF’s in this thread.  More importantly I shared the correct solution to Z32 hundreds of times.  Mission accomplished.

I have a timestamped record of that, and I also get link juice for my website https://inthreeandthreeeighthsradiansten.com and the codebase.  It is all for free and for educational purposes only.  I believe the work has great value and could lead to potential evidence recovery by the authorities in this case.  The significance of that happening would be massive. 

Others can think what they want about the plaintext.  But I discovered this:

When the scan happens we will know with certainty.  I do think it will happen one day.  Quick and easy to know the truth.  That is what I am waiting for.

My spamming was functional and served a purpose.  Public awareness.  Need more eyes on it, @shaqmeister isn’t the only perspective that exists.  Reddit wouldn’t let me share to having a new account.  I don’t use it so I had to make one to share it.

Code:  https://github.com/dstampher/zodiac-z32-cipher

Paper:  https://zenodo.org/records/18645227

Thank you for reading and have a nice day.

-David Stampher, the solver of the Mount Diablo Code aka Z32 (December 2025).

Had to do a bump as I see others are talking about inferior Z32 proposals that have no code.  I cracked the Mount Diablo code with Python.  I tested 2 million alternatives.  The Zodiac selected this solution with his crime scenes and instructions.

I realized I am only 36 posts away from 1337, a very significant number.  That will be when I share version 3 as my magnum opus.  This thread must end with the version 3 release, as it will be quite good.

I am not interested in bad debunks but I respect others rights to believe their bad debunks are correct.

Let me know if you find any problems with the math or code, lol.

So I will still tactically bump this thread if I see others discussing distracting Z32 proposals that add more confusion.

IN THREE AND THREE EIGHTHS RADIANS TEN is the personally confirmed solution to the Mount Diablo code.  You can stop trying now.

Solved by David Stampher in December 2025.  The work is not done.

There are more interesting things I’ve found, but I just stopped sharing them publicly.  The solution and the paper are good enough, but I have withheld additional findings from the public.  Those are being compiled for authorities, once I report the additional findings then maybe I will share the rest.  They aren’t directly related to this cipher, just more things noticed after further research, which took more time and effort.

But yeah the triangle needs to be scanned lol.  If something is found there I will wonder what took so long.  But better late than never.

IN THREE AND THREE EIGHTHS RADIANS TEN is the personally confirmed solution to the Mount Diablo code.

Code:  https://github.com/dstampher/zodiac-z32-cipher

I see rival Z32 “solvers” talking about the city of Hercules, or something extremely speculative like that.

My solution points to Lake Herman Road, where there is a landmark (see my profile picture).

These amateurs should invest in a pair of bifocals and stop generating weak debunks with their chatbots.  Instead generate code, it is much more useful.

These “Z32 solvers”, always pointing to graveyards, suspect houses, Twin Peaks, the city of Hercules, and a ton of other incorrect places.

As I mentioned, they can stop trying.  The cipher is solved by me, David Stampher in December 2025, using modern computational techniques.  I cracked the code to help move the case forward, and then shared my findings with others for educational purposes.

IN THREE AND THREE EIGHTHS RADIANS TEN is the personally confirmed solution to the Z32 cipher, aka The Mount Diablo Code.

Code:  https://github.com/dstampher/zodiac-z32-cipher

Paper:  https://zenodo.org/records/18645227

My personally confirmed solution is in a different league in that it is correct, while the others are not.  The code proves it.  Any real expert should be able to see the difference instantly.

Bumping my thread, yet again, to ensure the correct Z32 solution dominates the bad ones in the thread rankings.

This is all about providing some clarity in the muddy waters of the Mount Diablo code, which I solved in December 2025 using modern computational techniques.  Awaiting expert falsification.  Awaiting the scan (that is called science).