openproblem.co

openproblem.co is a live English-language website hosted on Cloudflare, Inc. (AS13335) in the United States, served by Cloudflare. cl0q first saw it on 2026-10-12 and last crawled it on 2026-10-12. It resolves to 172.67.187.234. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.

How the site describes itself:

openproblem.space · An Atlas of the Open Problems

An atlas of the problems humanity has solved and still faces, across twelve continents of inquiry, from the Riemann hypothesis to the origin of life. Fly across it, read it like a wiki, follow how one problem unlocks another.