External Synchronization

Synchronization models support shared timestamps, timecode, container/start times, visual/audio/manual markers, GPS/flight time, specified offset/drift, and multiple points. The stored model includes clocks, offset, linear drift, anchors, residuals, maximum error, confidence, adjustments, and warnings.

Frame-perfect alignment is never claimed unless measured. Discontinuities, incomplete spans, weak anchors, and excessive/nonlinear drift require review.