GeoProof is a protocol, not an app: it's the shared rulebook that several of these sister projects use to turn a raw observation into a signed, tamper-evident proof — one that a complete stranger can verify without trusting the observer, the checker, or anyone in between.
Rather than each sister project inventing its own way to sign and verify evidence, GeoProof defines one shared lifecycle every one of them can use: an event gets observed, signed, given a receipt, anchored, and can later be replayed to check nothing was tampered with. It doesn't reimplement any cryptography itself — it defines the shape and the rules, and leans on proven tooling underneath.
"An observation becomes evidence a complete stranger can verify — without trusting the observer, the verifier, or [the team] itself."
Its own demo lets you swap in a forged proof and watch verification correctly fail — never a false "verified."
Exposes real tools that AI coding assistants can call directly to produce and check tamper-evident audit trails — genuinely required to authenticate first, unlike most tools like it.
A fixed set of known-good answers so any implementation, in any language, can verify its own math matches the reference.
GeoProof isn't something you'd use directly — it's the shared plumbing a few of these other sister projects (like GeoPresence) are built on top of. It comes from the same builder as WinLEW, with no confirmed WinLEW-specific integration today.