Manipulation research · observation contracts v0.4
Does the evidence agree?
An image sequence and a gripper-drive history corroborate a completion claim. Compare the original verifier with the combined decision on the same physical scene, including the failures that survive every check.
Corroboration has limits. A green shape is a candidate, not authenticated identity. A visible position does not prove support or instantaneous rest. Drive effort is not object contact force. All channels here originate in one simulator. Zero model calls; no robot commands.
Physical reference
Baseline v0.3
Corroborated
False completions blocked
True completions lost
Original successes that become incomplete or unknown. All physically complete cases remain counted.
Physical reference
Baseline v0.3
Corroborated verdict
What the pixels support
Axial yaw is modulo 180°. Bounds come from the declared color, shape and camera model; they are not guarantees under arbitrary lighting or occlusion.
What the drive reports
Jaw gap · mm
Gripper drive effort · N
Command, encoder and effort consistency can corroborate an open, settled jaw. It cannot establish table support or absence of contact with every arm link.
Physical scene and reference goal
Physical scene reference. This view is separate from the consumed RGB sequence.Reference completed placement for this layout.
Decision reasons and channel checksSelected observer outputs · full outputs in benchmark
No cases match this filter.
Time, with its scope intact.
Requires 200 ms of observation history. Repeated pipeline calls measure compute variation; they are not additional physical trials or a hard real-time guarantee. These measurements are not a matched speedup comparison with a hosted Jev request or the previous parsed-state-only verifier.
Stage
Calls
Median · ms
p95 · ms
Max · ms
Keep the blind spots visible.
Physical reference, evidence sufficiency and algorithmic agreement are different measurements. An unknown decision can block an unsafe success claim without proving that the task failed. Shared replay, consistent fabricated inputs and unobservable physical properties remain explicit controls.