78/78
scoring cells matched exactly to the canonical engine (single-subject core)
0
variance across repeated runs (deterministic output)
468
facial landmarks tracked per face
60 min
the sweep ceiling for footage no analysis is reading. A finished run has its footage deleted the moment it finishes. Footage the engine is still reading is kept until that run ends.
What you can rely on today
Five things are true right now, each stated at the strength the evidence supports.
A reliable, reproducible engine
The shipped scoring core matches the canonical engine on 78 of 78 cells, exactly. It returns identical output on repeated runs. That parity check covers the single-subject core, not the group aggregate step on top of it. Same footage in, same read out, every time.
We measure the room, not the person
The read is room-level. It reports attention, energy, and synchrony for the group as a whole. Synchrony is how much of the room reacts at the same moment. No individual is ever scored. The engine infers no emotion. It reads behaviour and geometry, never feelings.
Private by construction
Your footage is processed, then deleted as soon as the analysis finishes. No faces are kept. Only the aggregate numbers survive: group totals, with nothing tied to a person. There is no individual record, because none is ever created.
Grounded in the science
The attention, energy, and synchrony signals rest on published behavioural science. They also rest on 468-landmark facial measurement. We did not invent them. Published grounding is not proof of outcome, and we do not claim it is.
In step with the regulators
The engine infers no emotion. The EU AI Act holds that emotion recognition lacks a scientific basis. We take the same position. Any emotion-framed output fails closed, which means the engine returns nothing rather than guess.
Held to an honest bar
Proof of Impact measures how a room responds. We hold the word impact to a pre-registered validation program rather than claim it before it is earned, and we publish the full record in the open, failures and all. That is the point of the name: proof you can check.