sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2: payload batch 4/4

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_manifest_pid.json

@@ -0,0 +1,5 @@
+{
+  "pid": 2192764,
+  "stage": "prior_manifest",
+  "started_utc": "2026-10-29T17:31:44.090168+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_manifest_result.json

@@ -0,0 +1,7 @@
+{
+  "returncode": 0,
+  "wall_seconds": 2.34843534801621,
+  "code": "b1c2893d12aeadc413aeb812e765230dbad431d9",
+  "started_utc": "2026-10-29T17:31:44.090168+00:00",
+  "finished_utc": "2026-10-29T17:31:46.438701+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_package.log

@@ -0,0 +1 @@
+{"case": "session_20260921_232447_904863", "object": "grey_timing_belt", "output": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1", "views": 4, "owner_prior_approval": "pending"}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_package_argv.json

@@ -0,0 +1,23 @@
+{
+  "argv": [
+    "uv",
+    "run",
+    "--no-sync",
+    "python",
+    "-B",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/c6a_20261027/accepted_batch_tools_20261028/recipes/package_prior_case.py",
+    "--run",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1",
+    "--output",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1"
+  ],
+  "cwd": "/mnt/data0/magna/belt_perception_wt_c6a_residual_decisions_20261029",
+  "code": "b1c2893d12aeadc413aeb812e765230dbad431d9",
+  "environment": {
+    "JAX_PLATFORMS": "cpu",
+    "CUDA_VISIBLE_DEVICES": "",
+    "OMP_NUM_THREADS": "1",
+    "PYTHONDONTWRITEBYTECODE": "1"
+  },
+  "started_utc": "2026-10-29T17:31:59.461957+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_package_pid.json

@@ -0,0 +1,5 @@
+{
+  "pid": 2193102,
+  "stage": "prior_package",
+  "started_utc": "2026-10-29T17:31:59.461957+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_package_result.json

@@ -0,0 +1,7 @@
+{
+  "returncode": 0,
+  "wall_seconds": 0.3236663230054546,
+  "code": "b1c2893d12aeadc413aeb812e765230dbad431d9",
+  "started_utc": "2026-10-29T17:31:59.461957+00:00",
+  "finished_utc": "2026-10-29T17:31:59.785734+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review.log

@@ -0,0 +1 @@
+review: ok -> /mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/steps/review.json

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review_argv.json

@@ -0,0 +1,22 @@
+{
+  "argv": [
+    "uv",
+    "run",
+    "--no-sync",
+    "python",
+    "-B",
+    "/mnt/data0/magna/belt_perception_wt_c6a_residual_decisions_20261029/scripts/real_rgbd_appearance_spline_prior.py",
+    "review",
+    "--run",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1"
+  ],
+  "cwd": "/mnt/data0/magna/belt_perception_wt_c6a_residual_decisions_20261029",
+  "code": "b1c2893d12aeadc413aeb812e765230dbad431d9",
+  "environment": {
+    "JAX_PLATFORMS": "cpu",
+    "CUDA_VISIBLE_DEVICES": "",
+    "OMP_NUM_THREADS": "1",
+    "PYTHONDONTWRITEBYTECODE": "1"
+  },
+  "started_utc": "2026-10-29T17:31:19.757520+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review_pid.json

@@ -0,0 +1,5 @@
+{
+  "pid": 2191585,
+  "stage": "prior_review",
+  "started_utc": "2026-10-29T17:31:19.757520+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review_result.json

@@ -0,0 +1,7 @@
+{
+  "returncode": 0,
+  "wall_seconds": 24.313836594985332,
+  "code": "b1c2893d12aeadc413aeb812e765230dbad431d9",
+  "started_utc": "2026-10-29T17:31:19.757520+00:00",
+  "finished_utc": "2026-10-29T17:31:44.071453+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review_v1/PRIOR_REVIEW_c6a_v1.md

@@ -0,0 +1,45 @@
+# session_20260921_232447_904863 — prior accepted by owner on 2026-10-29
+
+Saved C2 **grey_timing_belt** prior evidence (width 25.00 mm, zero-thickness surface). The owner accepted this prior on 2026-10-29. The numerical packet below reports saved values. A bounded agent visual review is recorded in [agent findings](agent_findings.json); it found no gross mismatch in the inspected four-camera initial overlays and sampled rotation, and records no owner acceptance.
+
+Initial reference frames are the saved nearest-camera observations of the first 30 Hz sample. The local row, converted frame, native-container frame and capture clock remain distinct in [the metrics JSON](<prior_metrics.json>).
+
+| Camera | Local / converted / native | Centerline / geometry / native input |
+|---|---|---|
+| 12540311 | 0 / 336 / 337 | [centerline](<../prior_timing_v1/review/spline/centerline_0_with_masks.png>) · [ribbon](<../prior_timing_v1/review/ribbon/silhouette_0_unmasked.png>) · [geometry + mask](<../prior_timing_v1/review/ribbon/silhouette_0_with_masks.png>) · [RGB/depth](<../prior_timing_v1/review/inputs/view_0_12540311.png>) |
+| 12933256 | 1 / 335 / 336 | [centerline](<../prior_timing_v1/review/spline/centerline_1_with_masks.png>) · [ribbon](<../prior_timing_v1/review/ribbon/silhouette_1_unmasked.png>) · [geometry + mask](<../prior_timing_v1/review/ribbon/silhouette_1_with_masks.png>) · [RGB/depth](<../prior_timing_v1/review/inputs/view_1_12933256.png>) |
+| 17736741 | 0 / 336 / 337 | [centerline](<../prior_timing_v1/review/spline/centerline_2_with_masks.png>) · [ribbon](<../prior_timing_v1/review/ribbon/silhouette_2_unmasked.png>) · [geometry + mask](<../prior_timing_v1/review/ribbon/silhouette_2_with_masks.png>) · [RGB/depth](<../prior_timing_v1/review/inputs/view_2_17736741.png>) |
+| 23007103 | 0 / 336 / 337 | [centerline](<../prior_timing_v1/review/spline/centerline_3_with_masks.png>) · [ribbon](<../prior_timing_v1/review/ribbon/silhouette_3_unmasked.png>) · [geometry + mask](<../prior_timing_v1/review/ribbon/silhouette_3_with_masks.png>) · [RGB/depth](<../prior_timing_v1/review/inputs/view_3_23007103.png>) |
+
+[Full rotation video](<../prior_timing_v1/review/ribbon/orbit.mp4>) · [Geometry and depth cloud](<../prior_timing_v1/review/ribbon/ribbon_scale_views.png>) · [Residual histograms](<../prior_timing_v1/review/spline/residual_histograms.png>) · [Depth offset diagnostic](<../prior_timing_v1/review/inputs/depth_offset.png>)
+
+Saved fit: **1 stage-1 rounds**, stop `gradient_tolerance`; final length **666.732 mm**, maximum curvature **12.379/m**, final gradient norm **8.19958e-09**. Soft length bounds are 664.000–666.000 mm; distance outside those bounds is 0.732 mm.
+
+The timing prior has a separate stage 2 with the centerline frozen: **9 twist iterations**, saved success `True`, stop `CONVERGENCE: RELATIVE REDUCTION OF F <= FACTR*EPSMCH`. [Twist and width directions](<../prior_timing_v1/review/ribbon/twist_and_width_direction.png>).
+
+Saved geometry checks report `passed=True`: **450 mesh vertices / 720 triangles**, 1 component(s), `watertight=False`, `self_intersecting=False`. [Full geometry checks](<../prior_timing_v1/ribbon/ribbon_checks.json>).
+
+The following 3D residuals are lifted-depth point distances to the **ribbon surface**, not measured reconstruction errors. The centerline-in-mask fraction is a separate saved diagnostic; it is not silhouette IoU or a visual quality decision.
+
+| Camera | Median / p90 3D residual (mm) | Visible centerline inside mask | Native depth and visibility evidence |
+|---|---|---|---|
+| 12540311 | 3.119 / 6.879 | 95.11% | [Full native video](<../review_v1/12540311/rgb_waft_depth_full_window.mp4>) · [Visibility/certainty](<../review_v1/12540311/12540311_visibility_certainty.png>) · [Support/rejections](<../review_v1/12540311/support_and_rejections.png>) · [Paired depth](<../review_v1/12540311/paired_depth.png>) |
+| 12933256 | 2.030 / 4.668 | 98.88% | [Full native video](<../review_v1/12933256/rgb_waft_depth_full_window.mp4>) · [Visibility/certainty](<../review_v1/12933256/12933256_visibility_certainty.png>) · [Support/rejections](<../review_v1/12933256/support_and_rejections.png>) · [Paired depth](<../review_v1/12933256/paired_depth.png>) |
+| 17736741 | 2.432 / 4.343 | 99.00% | [Full native video](<../review_v1/17736741/rgb_waft_depth_full_window.mp4>) · [Visibility/certainty](<../review_v1/17736741/17736741_visibility_certainty.png>) · [Support/rejections](<../review_v1/17736741/support_and_rejections.png>) · [Paired depth](<../review_v1/17736741/paired_depth.png>) |
+| 23007103 | 6.477 / 10.847 | 98.11% | [Full native video](<../review_v1/23007103/rgb_waft_depth_full_window.mp4>) · [Visibility/certainty](<../review_v1/23007103/23007103_visibility_certainty.png>) · [Support/rejections](<../review_v1/23007103/support_and_rejections.png>) · [Paired depth](<../review_v1/23007103/paired_depth.png>) |
+
+The saved statistical filter used 20 neighbours / 2 sigma and kept **44603 of 45856** eroded points. The run used `waft_stereo_dav2l5`, 2 px erosion, a 400-round budget and reprojection weight **4**.
+
+Appearance initialization contains **44603 observed + 21600 mesh-derived = 66203 seeds**. Vertex colors are observed for 426 mesh vertices and median-filled for 24. Mesh vertices and appearance seeds are not mechanical particles. No post-prior mechanical population or unit-mass total is supplied by this prior run; trained appearance and physical fitting are separate stages.
+
+[Appearance seed populations](<../prior_timing_v1/review/hybrid/combined.png>) · [Observed and filled colors](<../prior_timing_v1/review/colors/visibility_and_fill.png>) · [30 Hz observation coverage](<../review_v1/derived/derived_coverage.png>)
+
+[Full saved 30 Hz observations](<../review_v1/derived/derived_30hz_xyz.mp4>)
+
+[Manifest](<../prior_timing_v1/manifest.json>) · [Fit settings and metrics](<../prior_timing_v1/steps/fit.json>) · [Reference observations](<../prior_timing_v1/inputs/reference_views.json>) · [Tracking/lift summary](<../review_v1/summary.json>)
+
+Bounded visual review is complete in [agent findings](agent_findings.json), with inspected images and quarter-orbit samples listed explicitly. The main limitations are the 0.732 mm soft-length-bound excess, larger 23007103 depth residuals, a −2.884 mm minimum geometry height in the table frame, and sampled rather than frame-by-frame video inspection. The residual-histogram axis uses a generic centerline label; these timing-prior values measure ribbon-surface distance. The owner accepted this prior on 2026-10-29. No case status, prior acceptance, mechanics approval or trained-appearance approval is changed here.
+
+## Owner judgment
+
+The owner accepted this reviewed prior with “I approve for both” on 2026-10-29. [Exact accepted artifact](../../../owner_prior_acceptance_c6a_v1.json). The limitations above remain; mechanical/static-appearance preparation is authorized. No trained appearance or physical fit is accepted by this decision.

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review_v1/agent_findings.json

@@ -0,0 +1,100 @@
+{
+  "session_id": "session_20260921_232447_904863",
+  "reviewed_utc": "2026-10-29T17:33:39.012184+00:00",
+  "prior_run": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1",
+  "owner_prior_approval": "pending",
+  "agent_assessment": "ready for owner prior review; no gross mismatch found in inspected initial overlays or sampled rotation",
+  "scope": "Initial C2 grey timing-belt prior only. No mechanics or trained-appearance validation.",
+  "inspected_images": [
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/ribbon/silhouette_0_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/ribbon/silhouette_1_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/ribbon/silhouette_2_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/ribbon/silhouette_3_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/spline/centerline_0_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/spline/centerline_1_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/spline/centerline_2_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/spline/centerline_3_with_masks.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/ribbon/ribbon_scale_views.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/ribbon/twist_and_width_direction.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/colors/visibility_and_fill.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/hybrid/combined.png",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/review/spline/residual_histograms.png"
+  ],
+  "rotation_samples": {
+    "total_frames": 36,
+    "fps": 12.0,
+    "sampled_frames": [
+      {
+        "frame": 0,
+        "seconds": 0.0,
+        "path": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1/orbit_samples/frame_0000.png"
+      },
+      {
+        "frame": 9,
+        "seconds": 0.75,
+        "path": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1/orbit_samples/frame_0009.png"
+      },
+      {
+        "frame": 18,
+        "seconds": 1.5,
+        "path": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1/orbit_samples/frame_0018.png"
+      },
+      {
+        "frame": 27,
+        "seconds": 2.25,
+        "path": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1/orbit_samples/frame_0027.png"
+      }
+    ]
+  },
+  "observations": [
+    "The four initial projected centerlines lie on the visible belt bands, and the ribbon overlays track the observed loop silhouette without an obvious branch, fold, or global alignment error.",
+    "The scale views and four quarter-orbit samples show one continuous upright band. The plotted twist profile stays close to zero, consistent with the saved mean absolute vertical width direction of 0.9962.",
+    "Observed colors cover 426 of 450 vertices; 24 are median-filled. The hybrid seed plot retains the observed depth spread around the fitted surface."
+  ],
+  "metrics": {
+    "length_mm": 666.7320132255554,
+    "outside_soft_length_bounds_mm": 0.7320046424865723,
+    "stage1_rounds": 1,
+    "stage1_stop": "gradient_tolerance",
+    "twist_iterations": 9,
+    "twist_success": true,
+    "mesh_vertices": 450,
+    "triangles": 720,
+    "geometry_checks_passed": true,
+    "per_view_residual_mm": [
+      {
+        "serial": "12540311",
+        "median": 3.119394415989518,
+        "p90": 6.87898900359869,
+        "visible_centerline_in_mask_fraction": 0.9511111111111111
+      },
+      {
+        "serial": "12933256",
+        "median": 2.0300420001149178,
+        "p90": 4.667746927589179,
+        "visible_centerline_in_mask_fraction": 0.9888080581980974
+      },
+      {
+        "serial": "17736741",
+        "median": 2.4320899974554777,
+        "p90": 4.343239590525627,
+        "visible_centerline_in_mask_fraction": 0.99
+      },
+      {
+        "serial": "23007103",
+        "median": 6.477296352386475,
+        "p90": 10.846871882677078,
+        "visible_centerline_in_mask_fraction": 0.9811111111111112
+      }
+    ]
+  },
+  "limitations": [
+    "Length 666.732 mm is 0.732 mm above the soft 664\u2013666 mm bounds; the unchanged solver returned gradient tolerance, not a hard-bound feasibility guarantee.",
+    "Camera 23007103 has the largest saved point-to-ribbon residuals: median 6.477 mm, p90 10.847 mm. These compare reconstructed depth to the prior and are not ground-truth geometry errors.",
+    "The zero-thickness 25 mm ribbon has open width edges and is intentionally not watertight; saved geometry checks pass with one component and no self-intersections.",
+    "The saved geometry z minimum is \u22122.884 mm in the table frame; no correction was applied.",
+    "The residual histogram image uses the generic axis label centerline residual; its saved residual values and this packet refer to ribbon surface distance for the timing prior.",
+    "This was sampled visual review: four of 36 rotation frames, all four initial overlays, and the listed reference keyframes. Full videos remain available for owner inspection.",
+    "No mechanical particle population, mass assignment, physical fit, or trained appearance is produced or accepted by this prior."
+  ]
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review_v1/orbit_samples/samples.json

@@ -0,0 +1,26 @@
+{
+  "total_frames": 36,
+  "fps": 12.0,
+  "sampled_frames": [
+    {
+      "frame": 0,
+      "seconds": 0.0,
+      "path": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1/orbit_samples/frame_0000.png"
+    },
+    {
+      "frame": 9,
+      "seconds": 0.75,
+      "path": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_review_v1/orbit_samples/frame_0009.png"
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sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_review_v1/prior_metrics.json

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+  }
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_ribbon.log

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+ribbon: ok -> /mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1/steps/ribbon.json

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_ribbon_argv.json

@@ -0,0 +1,22 @@
+{
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+    "run",
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+    "-B",
+    "/mnt/data0/magna/belt_perception_wt_c6a_residual_decisions_20261029/scripts/real_rgbd_appearance_spline_prior.py",
+    "ribbon",
+    "--run",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_232447_904863/window_anchor0336-0500/accepted_input_preparation_c6a_v1/black_padding_preparation_v2/prior_timing_v1"
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+  "code": "b1c2893d12aeadc413aeb812e765230dbad431d9",
+  "environment": {
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+    "PYTHONDONTWRITEBYTECODE": "1"
+  },
+  "started_utc": "2026-10-29T17:31:01.096157+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_ribbon_pid.json

@@ -0,0 +1,5 @@
+{
+  "pid": 2190087,
+  "stage": "prior_ribbon",
+  "started_utc": "2026-10-29T17:31:01.096157+00:00"
+}

sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/prior_ribbon_result.json

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+{
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sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/reference_review.log

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sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/reference_review_argv.json

@@ -0,0 +1,31 @@
+{
+  "argv": [
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+    "run",
+    "--no-sync",
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+    "-B",
+    "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/c6a_20261027/accepted_batch_tools_20261028/recipes/review_reference_case.py",
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+  "code": "b1c2893d12aeadc413aeb812e765230dbad431d9",
+  "environment": {
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+    "CUDA_VISIBLE_DEVICES": "",
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+    "PYTHONDONTWRITEBYTECODE": "1"
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sessions/session_20260921_232447_904863/preprocessing/c6a-black-padding-preparation-v2/native/reference_review_pid.json

@@ -0,0 +1,5 @@
+{
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