
WebGPU + CPU
Cross-Substrate Byte-Identity
One integer kernel (add, subtract and shift only) runs on your GPU and your CPU in the same tab and is stitched into one image. Identical bytes give an invisible seam, an all-black XOR diff and a matching SHA-256 seal; flip one bit and all three break.
- GPU against CPU: zero differing cells, checkable offline
- 35 of 35 MIND fixtures pin x86 = ARM; the Lorenz fixture is replayed live and reproduces its pinned hash









