GoKawiilStatic / dynamic split In a typical dynamic capture, most splats are background that never moves beyond the bound. They are stored once — the entire background of a 1.6 GB sequence costs a few MB. Classification is exact: a splat is static iff a single quantized value satisfies the bound against its min and max over the whole clip.
Deadband “hold” tracks A dynamic splat’s stored value changes only when the true value would violate the bound against it. This kills quantization flicker, makes temporal deltas mostly zero, and the check itself enforces the guarantee before every emitted symbol.
H.265-style closed GOPs Keyframe (absolute quantized values) every N frames, then P-frames of exact integer deltas. Every GOP chunk decodes independently → seeking never touches other chunks. Key streams are laid out before delta streams inside each chunk, so a scrub can fetch ~10% of a chunk and show the keyframe instantly.