Why This Site Exists
Kryptos K4 has been unsolved for over 35 years. Over that time, countless people have tested countless theories, mostly in isolation, often duplicating work that others already tried. This site documents what has been tested so the community can focus on what hasn’t.
The Sculpture
Jim Sanborn spent two and a half years hand-cutting nearly 870 characters into copper with 20 assistants and 900 jigsaw blades. The result is one of the most widely recognized works of public art in the intelligence community, and one of the most famous unsolved ciphers. Sanborn has said that Kryptos is “available to all,” and created Antipodes at the Hirshhorn Museum so that anyone could engage with it, not just those with a security clearance.
This site is built with deep respect for Sanborn’s work and the community of solvers who have spent years studying it.
The Project
kryptosbot is an open-source elimination database. It documents what has been tried and disproven so the K4 community can focus on approaches that haven’t been tested yet.
The project is a collaboration between Colin Patrick and Claude (Anthropic). Together we have tested 671.0B+ configurations across 475+ experiments, eliminating every standard classical cipher method applied directly to K4.
The codebase is open source. Every result is reproducible. If you think you have an approach we haven’t tried, submit it, or better yet, clone the repo and prove us wrong.
About Colin
I’m a cybersecurity practitioner based in Maryland, with a background in audio engineering, film, and telecommunications.
I didn’t set out to work on Kryptos. But if you’re the kind of person who can’t walk away from a hard puzzle, at some point the sculpture at CIA headquarters stops being an interesting footnote and starts feeling like it’s staring back at you.