Point this camera at a BNR code on another screen. The payload arrives as a
bLiGhTbeAM — light, never network — and stays on this device. This device
answers back: its screen becomes the return beam.
Camera first.
Grant the camera once — this device remembers it — then hold
it on the other screen. Frames arrive in any order; a missed one comes round again.
Eye camera in · reading the beam
Conversation what the two devices are saying
bLighTnetWorK
Nothing heard yet — start the camera and aim it at a beam.
[bLighTnetWorK] ready.
bLighTnetWorK receiver · single-frame bLiGhTbeAMs (≤2.9 KB) · streamed beams (>3 KB) are the
fountain lane · this page validates shape; the consuming ceremony verifies
signatures. It never acts on a payload alone.