Everything below is the actual Obsign compute engine - Coherence Language compiled to a GPU shader inside your browser, no server, no upload. Write the physics, watch it run a million cells in real time, and prove the GPU agrees with the CPU bit-for-bit. This is what "computation you can prove" looks like when you can touch it.
Change a line of Coherence Language and Obsign recompiles it to WGSL and runs your physics across a million-cell field in real time, at hundreds of frames per second. The compiler that ships in the SDK, reproduced in the browser. This is the piece that makes people stop and stare.
A per-pixel kernel, compiled to a shader, running live on your webcam - with a one-click receipt that reads back the GPU and proves it matches the CPU path. Compute you can prove, on your face.
Program a 3D source field in Coherence Language and Obsign raymarches it live on the GPU. A live receipt samples the same field on your CPU and GPU and shows they agree to the f32 floor. Orbit it, watch it breathe.
A million-cell coherence PDE evolving in real time on your GPU, sculpted by your mouse. The same reaction-diffusion operator that defines the field - made into clay.
The core claim, on its own: evolve the field on your CPU and your GPU, hash both, and watch the hashes match. Then flip one bit and watch the proof catch it. On the homepage.