# phase-imaging — VALIDATION RESULTS

## Signal hypothesis

Real input devices (mice, keyboards) emit events at hardware-determined clock
frequencies (typically 60Hz, 125Hz, 500Hz, 1000Hz). Synthesized events from
automation frameworks either lack these clock signatures entirely (constant
gap) or have suspiciously regular timing (no jitter).

## 2-test results (vanilla headless vs CDP-attached headless)

Both conditions: 🔍 Significant Clock Signals Detected.

The signal's **qualitative verdict is identical** in both conditions.
Row-by-row magnitude data differs because the test runs at different
timestamps (which FFT bin each gap falls into is time-dependent).

## Verdict: ✅ VALIDATED — already in production

This spike's output matches the existing Phase 1 `phase_imaging` check.
The 2-test confirms the signal fires on headless regardless of CDP
attachment. No new finding needed.

## Recommendation

The existing `phase_imaging` Phase 1 check covers this signal. No
additional finding required.

## Files

- `demo.html` — the spike page
- (no test.py — used `_generic_test.py` for validation)