sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813: payload batch 1/2

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/C6A_REVIEW.md

@@ -0,0 +1,33 @@
+# session_20260921_230830_350739: C6a proposal review
+
+**Status: agent proposal; owner mask/window/contact decisions pending.**
+
+Object: taped round belt. Motion: two-handed grasp major axis without lifting, compress and stretch cycles.
+Current packet anchor converted frames: **324–813 inclusive**.
+Current packet endpoint sync timestamps: `1790046545803265683` / `1790046562162025322` ns.
+Participating identities: `hand_A+hand_B`; A is the right, bracelet-wearing hand, B the left.
+Hands mean visible bare forearm through fingertips, excluding bracelet/sleeve. Occluder means the whole visible person, including clothing, accessories and nonparticipating hands.
+
+C1 evidence: `/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_proposal_c1/proposal.json`.
+
+## Exact own-camera mapping
+
+| Camera | Window-local t | Converted frames | Native container frames | First / last capture timestamp ns |
+|---|---|---|---|---|
+| 12540311 | 0–489 | 324–813 | 325–814 | 1790046545803265683 / 1790046562162025322 |
+| 12933256 | 0–489 | 323–812 | 324–813 | 1790046545801584284 / 1790046562160448442 |
+| 17736741 | 0–489 | 323–812 | 324–813 | 1790046545794052322 / 1790046562152649460 |
+| 23007103 | 0–489 | 323–812 | 324–813 | 1790046545791003243 / 1790046562146511413 |
+
+## Review products
+
+The newest completed media for each view/role currently present are listed below. A correction directory may cover only its changed views/roles; its media_index.json lists the exact coverage. Earlier prompts, propagation runs and media remain on disk. A new correction can make an older media directory historical; use current supplier admission before signoff or downstream processing.
+
+- Views 12540311, 12933256, 17736741, 23007103: [object](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_recovery2/role_object.mp4), [hand_A](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_recovery2/role_hand_A.mp4), [hand_B](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_recovery2/role_hand_B.mp4), [occluder](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_recovery2/role_occluder.mp4); [start context](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_recovery2/boundary_start.mp4), [end context](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_recovery2/boundary_end.mp4).
+- Views 12540311, 12933256, 17736741, 23007103: [occluder](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_selected_v3/role_occluder.mp4); [start context](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_selected_v3/boundary_start.mp4), [end context](/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/review_media_c6a_selected_v3/boundary_end.mp4).
+
+## Decisions and downstream boundary
+
+This card records the decisions above and grants no additional stage. Actual owner mask/window decisions must be recorded before final tracking. The three pushes also require an explicit decision about the fixed material-attachment approximation. After prompt corrections, perform fresh current-input admission; an old fitting identity alone does not detect every C1 F3 correction.
+
+C6a review findings and decisions are collected under `lab/c6a_20261027/`; source C1 records and protected A/B inputs remain unchanged.

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/hand_A/t0000_v01.json

@@ -0,0 +1,110 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12540311",
+  "view_index": 0,
+  "instance": "hand_A",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 324,
+    "official_frame_index": 324,
+    "native_container_frame_index": 325,
+    "view_time_ns": 1790046545803265683
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      561.0,
+      945.0
+    ],
+    [
+      755.0,
+      917.0
+    ],
+    [
+      810.0,
+      966.0
+    ],
+    [
+      693.0,
+      913.0
+    ],
+    [
+      446.0,
+      991.0
+    ],
+    [
+      858.0,
+      868.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    489.0,
+    832.0,
+    867.0,
+    1026.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Right bracelet hand is lower arm: bare forearm through fingertips, bracelet and sleeve excluded.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "ae7359b62082f4f793a2e5397a9dba47dcb5b369beca43768d21eb2d8803c511",
+  "seed_mask_pixels": 36025,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:32Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/hand_A/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ae7359b62082f4f793a2e5397a9dba47dcb5b369beca43768d21eb2d8803c511
+size 2132

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/hand_B/t0000_v01.json

@@ -0,0 +1,115 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12540311",
+  "view_index": 0,
+  "instance": "hand_B",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 324,
+    "official_frame_index": 324,
+    "native_container_frame_index": 325,
+    "view_time_ns": 1790046545803265683
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      488.0,
+      574.0
+    ],
+    [
+      635.0,
+      563.0
+    ],
+    [
+      712.0,
+      532.0
+    ],
+    [
+      732.0,
+      603.0
+    ],
+    [
+      400.0,
+      588.0
+    ],
+    [
+      775.0,
+      604.0
+    ],
+    [
+      639.0,
+      655.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    436.0,
+    498.0,
+    759.0,
+    626.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Physical left hand is upper arm, no bracelet; bare forearm through pinching fingertips.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "95f8e20b3a6b2d3f17a6bf326dd1dfd315942c0c2eef839cf59e0cde7413a546",
+  "seed_mask_pixels": 23822,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:32Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/hand_B/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:95f8e20b3a6b2d3f17a6bf326dd1dfd315942c0c2eef839cf59e0cde7413a546
+size 1577

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/object/t0000_v01.json

@@ -0,0 +1,120 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12540311",
+  "view_index": 0,
+  "instance": "object",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 324,
+    "official_frame_index": 324,
+    "native_container_frame_index": 325,
+    "view_time_ns": 1790046545803265683
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      777.0,
+      604.0
+    ],
+    [
+      903.0,
+      707.0
+    ],
+    [
+      906.0,
+      809.0
+    ],
+    [
+      670.0,
+      716.0
+    ],
+    [
+      692.0,
+      810.0
+    ],
+    [
+      790.0,
+      747.0
+    ],
+    [
+      759.0,
+      924.0
+    ],
+    [
+      669.0,
+      559.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    660.0,
+    596.0,
+    919.0,
+    887.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Visible orange cord only; both grasped ends partly occluded. Source frame 324, local t0.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "5640c2c8ace49eaa605ec23a6634890d1cedb3cbdb9c2b8d878e7b99de25aeb2",
+  "seed_mask_pixels": 8715,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:32Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/object/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5640c2c8ace49eaa605ec23a6634890d1cedb3cbdb9c2b8d878e7b99de25aeb2
+size 2456

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/occluder/t0000_v01.json

@@ -0,0 +1,135 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12540311",
+  "view_index": 0,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 324,
+    "official_frame_index": 324,
+    "native_container_frame_index": 325,
+    "view_time_ns": 1790046545803265683
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      131.0,
+      578.0
+    ],
+    [
+      342.0,
+      602.0
+    ],
+    [
+      320.0,
+      1044.0
+    ],
+    [
+      494.0,
+      575.0
+    ],
+    [
+      657.0,
+      560.0
+    ],
+    [
+      567.0,
+      945.0
+    ],
+    [
+      754.0,
+      918.0
+    ],
+    [
+      380.0,
+      783.0
+    ],
+    [
+      793.0,
+      733.0
+    ],
+    [
+      100.0,
+      350.0
+    ],
+    [
+      693.0,
+      913.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0,
+    1
+  ],
+  "box_uv": [
+    0.0,
+    496.0,
+    868.0,
+    1079.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Whole visible person: both disjoint sleeves/forearms/hands including bracelet. No head at this exact seed; later head entry remains to inspect. Owner clarification: full-person occluder includes clothing and accessories. Added positive on visible silver bracelet, confirmed against this own-camera native t0 grid. Hand_A continues to exclude bracelet.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "4a1b81d40e651f88d453572d96f0b7c32334f55a98ebf88c5c16b78fa84b5568",
+  "seed_mask_pixels": 179142,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:32Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/occluder/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4a1b81d40e651f88d453572d96f0b7c32334f55a98ebf88c5c16b78fa84b5568
+size 3923

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/occluder/t0000_v02.json

@@ -0,0 +1,108 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12540311",
+  "view_index": 0,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 324,
+    "official_frame_index": 324,
+    "native_container_frame_index": 325,
+    "view_time_ns": 1790046545803265683
+  },
+  "version": 2,
+  "supersedes": {
+    "file": "t0000_v01.json",
+    "sha256": "e51dabae0cceca61caf8157a8829c265fec1a4452ddb1a22abfbed057147f7bf"
+  },
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      131.0,
+      578.0
+    ],
+    [
+      657.0,
+      560.0
+    ],
+    [
+      320.0,
+      1044.0
+    ],
+    [
+      754.0,
+      918.0
+    ],
+    [
+      693.0,
+      913.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1
+  ],
+  "box_uv": [
+    0.0,
+    496.0,
+    868.0,
+    1079.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Sparse whole-person occluder replacement after t0 role-separated review: include body, clothing, cap/head and accessories including bracelet. Five positive points total, no multipart union; original box preserved. Agent proposal requires SAM2 preview, propagated review and owner mask acceptance.",
+  "seed_mask_file": "t0000_v02_seed_mask.npz",
+  "seed_mask_sha256": "4bcddcc546649de9247f3673b6fcbe258d424f38bbe8f20331d704dd8f1f6755",
+  "seed_mask_pixels": 182457,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T23:47:39Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12540311/occluder/t0000_v02_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4bcddcc546649de9247f3673b6fcbe258d424f38bbe8f20331d704dd8f1f6755
+size 3568

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/hand_A/t0000_v01.json

@@ -0,0 +1,110 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12933256",
+  "view_index": 1,
+  "instance": "hand_A",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545801584284
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1153.0,
+      489.0
+    ],
+    [
+      1308.0,
+      495.0
+    ],
+    [
+      1094.0,
+      520.0
+    ],
+    [
+      1208.0,
+      483.0
+    ],
+    [
+      1012.0,
+      680.0
+    ],
+    [
+      1454.0,
+      487.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    1072.0,
+    441.0,
+    1378.0,
+    543.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Right bracelet hand is upper arm in this view; bare forearm and hand, excluding bracelet and sleeve.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "d510fc5a113007f5559e2f9e0ef686dd6c5f32d375beb56c82e4a0e2ac5fd270",
+  "seed_mask_pixels": 18553,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:36Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/hand_A/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d510fc5a113007f5559e2f9e0ef686dd6c5f32d375beb56c82e4a0e2ac5fd270
+size 1474

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/hand_B/t0000_v01.json

@@ -0,0 +1,110 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12933256",
+  "view_index": 1,
+  "instance": "hand_B",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545801584284
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1118.0,
+      680.0
+    ],
+    [
+      982.0,
+      670.0
+    ],
+    [
+      893.0,
+      729.0
+    ],
+    [
+      1214.0,
+      698.0
+    ],
+    [
+      999.0,
+      543.0
+    ],
+    [
+      1154.0,
+      487.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    843.0,
+    620.0,
+    1181.0,
+    771.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Physical left hand is lower arm in this view; bare forearm through visible fingers.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "126a51986be9d56c9f14783ab3510446dbeeff8eb7253e59a393bcfc455fbcff",
+  "seed_mask_pixels": 31386,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:36Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/hand_B/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:126a51986be9d56c9f14783ab3510446dbeeff8eb7253e59a393bcfc455fbcff
+size 1646

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/object/t0000_v01.json

@@ -0,0 +1,115 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12933256",
+  "view_index": 1,
+  "instance": "object",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545801584284
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      977.0,
+      550.0
+    ],
+    [
+      869.0,
+      631.0
+    ],
+    [
+      1128.0,
+      602.0
+    ],
+    [
+      1084.0,
+      535.0
+    ],
+    [
+      994.0,
+      600.0
+    ],
+    [
+      972.0,
+      684.0
+    ],
+    [
+      1146.0,
+      487.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    859.0,
+    527.0,
+    1141.0,
+    682.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Visible orange segments only; lower portion hidden by physical left hand, never fill it. Source frame 323, local t0.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "4a6667b7f5444ee0b9a14079dd06218c0225bc52321b2e6a8617e10e862a0628",
+  "seed_mask_pixels": 5057,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:36Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/object/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4a6667b7f5444ee0b9a14079dd06218c0225bc52321b2e6a8617e10e862a0628
+size 1724

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/occluder/t0000_v01.json

@@ -0,0 +1,135 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12933256",
+  "view_index": 1,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545801584284
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1500.0,
+      501.0
+    ],
+    [
+      1710.0,
+      714.0
+    ],
+    [
+      1273.0,
+      493.0
+    ],
+    [
+      1136.0,
+      492.0
+    ],
+    [
+      1095.0,
+      681.0
+    ],
+    [
+      948.0,
+      678.0
+    ],
+    [
+      1870.0,
+      426.0
+    ],
+    [
+      1351.0,
+      608.0
+    ],
+    [
+      1004.0,
+      585.0
+    ],
+    [
+      1100.0,
+      300.0
+    ],
+    [
+      1208.0,
+      483.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0,
+    1
+  ],
+  "box_uv": [
+    841.0,
+    370.0,
+    1919.0,
+    871.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Whole visible person at right: both sleeves, forearms and hands; table gap between arms excluded. Owner clarification: full-person occluder includes clothing and accessories. Added positive on visible silver bracelet, confirmed against this own-camera native t0 grid. Hand_A continues to exclude bracelet.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "7afb0a1900b40a92fe89ce790d4eede04b14422ec822cf1400b0d8f1804659de",
+  "seed_mask_pixels": 289931,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:36Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/occluder/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7afb0a1900b40a92fe89ce790d4eede04b14422ec822cf1400b0d8f1804659de
+size 3936

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/occluder/t0000_v02.json

@@ -0,0 +1,108 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12933256",
+  "view_index": 1,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545801584284
+  },
+  "version": 2,
+  "supersedes": {
+    "file": "t0000_v01.json",
+    "sha256": "0b9bb8b3fae82f6d2d443375e21b87dd40d735a33262b1c60c0dc58cba9441b0"
+  },
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1500.0,
+      501.0
+    ],
+    [
+      1710.0,
+      714.0
+    ],
+    [
+      1136.0,
+      492.0
+    ],
+    [
+      948.0,
+      678.0
+    ],
+    [
+      1208.0,
+      483.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1
+  ],
+  "box_uv": [
+    841.0,
+    370.0,
+    1919.0,
+    871.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Sparse whole-person occluder replacement after t0 role-separated review: include body, clothing, cap/head and accessories including bracelet. Five positive points total, no multipart union; original box preserved. Agent proposal requires SAM2 preview, propagated review and owner mask acceptance.",
+  "seed_mask_file": "t0000_v02_seed_mask.npz",
+  "seed_mask_sha256": "0434206960247dc2745988cef4e75998db20abddb62069b8baf1254d141a8884",
+  "seed_mask_pixels": 292590,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T23:47:42Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/occluder/t0000_v02_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0434206960247dc2745988cef4e75998db20abddb62069b8baf1254d141a8884
+size 3803

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/occluder/t0060_v01.json

@@ -0,0 +1,105 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "12933256",
+  "view_index": 1,
+  "instance": "occluder",
+  "frame": {
+    "t": 60,
+    "sync_index": 383,
+    "converted_frame_index": 383,
+    "official_frame_index": 383,
+    "native_container_frame_index": 384,
+    "view_time_ns": 1790046547806210878
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1756.0,
+      40.0
+    ],
+    [
+      1859.0,
+      103.0
+    ],
+    [
+      1166.0,
+      492.0
+    ],
+    [
+      960.0,
+      675.0
+    ],
+    [
+      1622.0,
+      224.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    0
+  ],
+  "box_uv": [
+    820.0,
+    0.0,
+    1919.0,
+    908.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Sparse cap/glasses/bracelet/opposite-hand positives plus one negative on the static tripod leg seen in preview v1. Total five points, same method.",
+  "seed_mask_file": "t0060_v01_seed_mask.npz",
+  "seed_mask_sha256": "e6ae2dc1864640031340e2e94a53beb8fcd5e8b019fc81848f95b0e815c2f0a4",
+  "seed_mask_pixels": 347479,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T23:47:43Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/12933256/occluder/t0060_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e6ae2dc1864640031340e2e94a53beb8fcd5e8b019fc81848f95b0e815c2f0a4
+size 5308

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/hand_A/t0000_v01.json

@@ -0,0 +1,110 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "17736741",
+  "view_index": 2,
+  "instance": "hand_A",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545794052322
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      641.0,
+      691.0
+    ],
+    [
+      804.0,
+      743.0
+    ],
+    [
+      856.0,
+      818.0
+    ],
+    [
+      738.0,
+      711.0
+    ],
+    [
+      528.0,
+      674.0
+    ],
+    [
+      923.0,
+      770.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    566.0,
+    643.0,
+    916.0,
+    847.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Right bracelet hand is lower arm: bare forearm through fingertips; bracelet and sleeve excluded.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "bbbc9769bdf7996a9fed5463a2b07b5fe300fccc359effc21af0adff880aa646",
+  "seed_mask_pixels": 29870,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:41Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/hand_A/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bbbc9769bdf7996a9fed5463a2b07b5fe300fccc359effc21af0adff880aa646
+size 2178

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/hand_B/t0000_v01.json

@@ -0,0 +1,110 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "17736741",
+  "view_index": 2,
+  "instance": "hand_B",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545794052322
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      802.0,
+      414.0
+    ],
+    [
+      944.0,
+      449.0
+    ],
+    [
+      1034.0,
+      479.0
+    ],
+    [
+      704.0,
+      391.0
+    ],
+    [
+      999.0,
+      519.0
+    ],
+    [
+      982.0,
+      481.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    729.0,
+    366.0,
+    1057.0,
+    532.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Physical left hand is upper arm; bare forearm through fingers. Keep visible opening between curled digits.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "036ad43c097999791ef9712df006d4de7446990172e106d7cfba5fca1fd0d0b6",
+  "seed_mask_pixels": 21738,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:41Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/hand_B/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:036ad43c097999791ef9712df006d4de7446990172e106d7cfba5fca1fd0d0b6
+size 1976

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/object/t0000_v01.json

@@ -0,0 +1,120 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "17736741",
+  "view_index": 2,
+  "instance": "object",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545794052322
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      984.0,
+      525.0
+    ],
+    [
+      1092.0,
+      610.0
+    ],
+    [
+      1011.0,
+      753.0
+    ],
+    [
+      852.0,
+      680.0
+    ],
+    [
+      891.0,
+      581.0
+    ],
+    [
+      975.0,
+      640.0
+    ],
+    [
+      820.0,
+      767.0
+    ],
+    [
+      958.0,
+      454.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    845.0,
+    513.0,
+    1104.0,
+    781.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Visible orange cord only; exclude loop interior and both hands. Source frame 323, local t0.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "a20b489e27c0e85a3120c720aefd74a94362ddb75c8b473c204f9e6f6c805ce9",
+  "seed_mask_pixels": 8958,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:41Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/object/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a20b489e27c0e85a3120c720aefd74a94362ddb75c8b473c204f9e6f6c805ce9
+size 2371

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/occluder/t0000_v01.json

@@ -0,0 +1,150 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "17736741",
+  "view_index": 2,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545794052322
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      70.0,
+      133.0
+    ],
+    [
+      122.0,
+      268.0
+    ],
+    [
+      138.0,
+      445.0
+    ],
+    [
+      546.0,
+      346.0
+    ],
+    [
+      354.0,
+      656.0
+    ],
+    [
+      643.0,
+      690.0
+    ],
+    [
+      819.0,
+      764.0
+    ],
+    [
+      805.0,
+      417.0
+    ],
+    [
+      949.0,
+      447.0
+    ],
+    [
+      665.0,
+      530.0
+    ],
+    [
+      439.0,
+      120.0
+    ],
+    [
+      580.0,
+      883.0
+    ],
+    [
+      1090.0,
+      600.0
+    ],
+    [
+      738.0,
+      711.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0,
+    0,
+    1
+  ],
+  "box_uv": [
+    0.0,
+    0.0,
+    1059.0,
+    850.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Whole person including large cap/head at top-left, torso, both sleeves and both hands; exclude robot/table between arms. Owner clarification: full-person occluder includes clothing and accessories. Added positive on visible silver bracelet, confirmed against this own-camera native t0 grid. Hand_A continues to exclude bracelet.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "0735f4ada5ae6fcb287929d836589673177bb2e7ec97c926886c27378273693f",
+  "seed_mask_pixels": 250770,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:41Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/occluder/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0735f4ada5ae6fcb287929d836589673177bb2e7ec97c926886c27378273693f
+size 11187

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/occluder/t0000_v02.json

@@ -0,0 +1,108 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "17736741",
+  "view_index": 2,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545794052322
+  },
+  "version": 2,
+  "supersedes": {
+    "file": "t0000_v01.json",
+    "sha256": "bcea029785e2648c3b20bba52be0f355aba7ca7c4919ba70aaac6383575de316"
+  },
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      70.0,
+      133.0
+    ],
+    [
+      138.0,
+      445.0
+    ],
+    [
+      949.0,
+      447.0
+    ],
+    [
+      819.0,
+      764.0
+    ],
+    [
+      738.0,
+      711.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1
+  ],
+  "box_uv": [
+    0.0,
+    0.0,
+    1059.0,
+    850.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Sparse whole-person occluder replacement after t0 role-separated review: include body, clothing, cap/head and accessories including bracelet. Five positive points total, no multipart union; original box preserved. Agent proposal requires SAM2 preview, propagated review and owner mask acceptance.",
+  "seed_mask_file": "t0000_v02_seed_mask.npz",
+  "seed_mask_sha256": "06ca3d15c2bcd93de6615cb3ba3602bff94117dcaf349432290aab270d01f785",
+  "seed_mask_pixels": 329583,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T23:47:46Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/17736741/occluder/t0000_v02_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:06ca3d15c2bcd93de6615cb3ba3602bff94117dcaf349432290aab270d01f785
+size 6627

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/hand_A/t0000_v01.json

@@ -0,0 +1,110 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "23007103",
+  "view_index": 3,
+  "instance": "hand_A",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545791003243
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1026.0,
+      416.0
+    ],
+    [
+      1125.0,
+      363.0
+    ],
+    [
+      976.0,
+      440.0
+    ],
+    [
+      1074.0,
+      386.0
+    ],
+    [
+      1187.0,
+      343.0
+    ],
+    [
+      1032.0,
+      469.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    955.0,
+    330.0,
+    1168.0,
+    474.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Right bracelet hand is image-left arm from frontal torso; bare forearm through fingertips, excluding bracelet/cuff.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "61575306d5152b513bd29152c5b65eb7bac83879ffbba9e69e7fbe68623965f9",
+  "seed_mask_pixels": 10476,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:45Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/hand_A/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:61575306d5152b513bd29152c5b65eb7bac83879ffbba9e69e7fbe68623965f9
+size 1705

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/hand_B/t0000_v01.json

@@ -0,0 +1,110 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "23007103",
+  "view_index": 3,
+  "instance": "hand_B",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545791003243
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1327.0,
+      456.0
+    ],
+    [
+      1279.0,
+      525.0
+    ],
+    [
+      1228.0,
+      577.0
+    ],
+    [
+      1386.0,
+      423.0
+    ],
+    [
+      1174.0,
+      594.0
+    ],
+    [
+      1050.0,
+      411.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    1169.0,
+    420.0,
+    1385.0,
+    625.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Physical left hand is image-right/lower arm in frontal view; bare forearm through fingers.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "efe40237d3e8ebd36a5ece5801a7fcd7fc46c8e2dbcede7997a227a8bf58a0d5",
+  "seed_mask_pixels": 17947,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:45Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/hand_B/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:efe40237d3e8ebd36a5ece5801a7fcd7fc46c8e2dbcede7997a227a8bf58a0d5
+size 1761

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/object/t0000_v01.json

@@ -0,0 +1,115 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "23007103",
+  "view_index": 3,
+  "instance": "object",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545791003243
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1044.0,
+      470.0
+    ],
+    [
+      1167.0,
+      529.0
+    ],
+    [
+      1135.0,
+      599.0
+    ],
+    [
+      981.0,
+      529.0
+    ],
+    [
+      1089.0,
+      536.0
+    ],
+    [
+      1023.0,
+      417.0
+    ],
+    [
+      1251.0,
+      560.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0
+  ],
+  "box_uv": [
+    965.0,
+    462.0,
+    1208.0,
+    607.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Visible orange loop only, both grasped ends stop at visible fingers. Source frame 323, local t0.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "766a8b5c3ad9e4da996b5351857fd51ba9e0be2f673ad2d118c3d8e5b9319bae",
+  "seed_mask_pixels": 5412,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:45Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/object/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:766a8b5c3ad9e4da996b5351857fd51ba9e0be2f673ad2d118c3d8e5b9319bae
+size 1838

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/occluder/t0000_v01.json

@@ -0,0 +1,145 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "23007103",
+  "view_index": 3,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545791003243
+  },
+  "version": 1,
+  "supersedes": null,
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1467.0,
+      115.0
+    ],
+    [
+      1454.0,
+      27.0
+    ],
+    [
+      1450.0,
+      284.0
+    ],
+    [
+      1232.0,
+      280.0
+    ],
+    [
+      1029.0,
+      414.0
+    ],
+    [
+      1117.0,
+      362.0
+    ],
+    [
+      1347.0,
+      458.0
+    ],
+    [
+      1267.0,
+      549.0
+    ],
+    [
+      1504.0,
+      385.0
+    ],
+    [
+      1220.0,
+      431.0
+    ],
+    [
+      1090.0,
+      536.0
+    ],
+    [
+      1730.0,
+      300.0
+    ],
+    [
+      1074.0,
+      386.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0,
+    1
+  ],
+  "box_uv": [
+    953.0,
+    0.0,
+    1656.0,
+    628.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Whole visible person including cap/head/glasses, torso, both sleeves and both hands; preserve table gap and loop interior. Owner clarification: full-person occluder includes clothing and accessories. Added positive on visible silver bracelet, confirmed against this own-camera native t0 grid. Hand_A continues to exclude bracelet.",
+  "seed_mask_file": "t0000_v01_seed_mask.npz",
+  "seed_mask_sha256": "642845d174653e0acb46a18edef04bdddc3ad1aa66c77f79c351ee78c06e7d7e",
+  "seed_mask_pixels": 144076,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T22:10:45Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/occluder/t0000_v01_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:642845d174653e0acb46a18edef04bdddc3ad1aa66c77f79c351ee78c06e7d7e
+size 5381

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/occluder/t0000_v02.json

@@ -0,0 +1,108 @@
+{
+  "schema": "real_rgbd_instance_prompt_v1",
+  "binding": {
+    "session_id": "session_20260921_230830_350739",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "serials": [
+      "12540311",
+      "12933256",
+      "17736741",
+      "23007103"
+    ],
+    "sync_index_half_open": [
+      323,
+      813
+    ],
+    "anchor_time_ns_first_last": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "serial": "23007103",
+  "view_index": 3,
+  "instance": "occluder",
+  "frame": {
+    "t": 0,
+    "sync_index": 323,
+    "converted_frame_index": 323,
+    "official_frame_index": 323,
+    "native_container_frame_index": 324,
+    "view_time_ns": 1790046545791003243
+  },
+  "version": 2,
+  "supersedes": {
+    "file": "t0000_v01.json",
+    "sha256": "dedbceacc5cc2b80127fe2412773229f97c586c8f3464c933d734e782217c3d7"
+  },
+  "image_size_hw": [
+    1080,
+    1920
+  ],
+  "pixel_convention": "native rectified-left pixels: u = column, v = row, integer values at pixel centres",
+  "points_uv": [
+    [
+      1454.0,
+      27.0
+    ],
+    [
+      1435.0,
+      196.0
+    ],
+    [
+      1535.0,
+      415.0
+    ],
+    [
+      1267.0,
+      549.0
+    ],
+    [
+      1074.0,
+      386.0
+    ]
+  ],
+  "labels": [
+    1,
+    1,
+    1,
+    1,
+    1
+  ],
+  "box_uv": [
+    953.0,
+    0.0,
+    1656.0,
+    628.0
+  ],
+  "source": "agent:c6a_20261027",
+  "note": "Sparse whole-person occluder replacement after t0 role-separated review: include body, clothing, cap/head and accessories including bracelet. Five positive points total, no multipart union; original box preserved. Agent proposal requires SAM2 preview, propagated review and owner mask acceptance.",
+  "seed_mask_file": "t0000_v02_seed_mask.npz",
+  "seed_mask_sha256": "afe72491a0d7f495b59e6cd261c58b5a9e04f7346cf42b3ec32774e9ca80a071",
+  "seed_mask_pixels": 152195,
+  "seed_model": {
+    "predictor": "sam2_video_predictor",
+    "config": "configs/sam2.1/sam2.1_hiera_l.yaml",
+    "config_file": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2/configs/sam2.1/sam2.1_hiera_l.yaml",
+    "checkpoint": "/mnt/data2/magna/belt_perception/third_party/phystwin_external/checkpoints/sam2.1_hiera_large.pt",
+    "checkpoint_sha256": "2647878d5dfa5098f2f8649825738a9345572bae2d4350a2468587ece47dd318",
+    "sam2_package": "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/segment-anything-2/sam2",
+    "sam2_git": {
+      "commit": "969dad578a42d4c75624f87821497d37aabfbe99",
+      "clean": true
+    },
+    "build": "build_sam2_video_predictor(apply_postprocessing=True)",
+    "fill_hole_area": 0,
+    "binarize_mask_from_pts_for_mem_enc": true,
+    "non_overlap_masks": false,
+    "image_size": 1024,
+    "frame_preprocessing": "decoded native RGB, PIL default resize to image_size^2, /255, ImageNet mean/std (no JPEG)",
+    "coordinate_normalization": "native (u, v) / (W, H) * image_size (normalize_coords=True)",
+    "mask_logit_threshold": 0.0,
+    "autocast": "bfloat16",
+    "tf32": true,
+    "device": "cuda",
+    "torch": "2.11.0+cu128"
+  },
+  "created_utc": "2026-10-27T23:47:49Z"
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/annotations/prompts/23007103/occluder/t0000_v02_seed_mask.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:afe72491a0d7f495b59e6cd261c58b5a9e04f7346cf42b3ec32774e9ca80a071
+size 4894

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/draft_dispatch_revision.json

@@ -0,0 +1,7 @@
+{
+  "dispatch_file": "proposal_prompts_c6a_v1.json",
+  "revision_file": "proposal_prompts_c6a_v2.json",
+  "preserved_previous": "proposal_prompts_c6a_before_accessories.json",
+  "reason": "Add native-inspected bracelet positive per whole-person occluder before first proposal execution. Other roles and window unchanged.",
+  "owner_mask_accepted": false
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/inspect.log

@@ -0,0 +1 @@
+Wrote /mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/inspection/frames.npz and /mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/inspection/inspection.json

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/inspect_command.json

@@ -0,0 +1,15 @@
+[
+  "/mnt/data0/magna/belt_perception_wt_c6a_lab_input_preparation_20261027/.venv/bin/python3",
+  "scripts/phystwin_real_rgbd.py",
+  "inspect",
+  "--session",
+  "/mnt/data2/magna/belt_perception/converted_datasets/sessions/session_20260921_230830_350739",
+  "--window",
+  "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/phystwin_window.yaml",
+  "--frame-association",
+  "per_camera_native_range",
+  "--output",
+  "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/inspection",
+  "--sample-t",
+  "0"
+]

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/inspection/frames.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6833c764e273210f966ad633978546ee607f84e8b56a4cd05a222e70cf3c0fe3
+size 117612

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/inspection/inspection.json

@@ -0,0 +1,345 @@
+{
+  "frame_count": 490,
+  "transition_count": 489,
+  "sync_index_half_open": [
+    323,
+    813
+  ],
+  "anchor_time_ns_first_last": [
+    1790046545803265683,
+    1790046562162025322
+  ],
+  "anchor_span_s": 16.358759639000002,
+  "anchor_interval_ms": {
+    "min": 22.578764,
+    "median": 33.434371999999996,
+    "max": 42.382743
+  },
+  "anchor_view": 0,
+  "world_frame": "table",
+  "physics_frame": "table",
+  "physics_T_world": [
+    [
+      1.0,
+      0.0,
+      0.0,
+      0.0
+    ],
+    [
+      0.0,
+      1.0,
+      0.0,
+      0.0
+    ],
+    [
+      0.0,
+      0.0,
+      1.0,
+      0.0
+    ],
+    [
+      0.0,
+      0.0,
+      0.0,
+      1.0
+    ]
+  ],
+  "views": [
+    {
+      "serial": "12540311",
+      "rgb_stream_id": "zed_12540311_left_rgb",
+      "depth_stream_id": "zed_12540311_depth_zed_sdk_neural_plus",
+      "converted_frame_index_half_open": [
+        324,
+        814
+      ],
+      "distinct_frames": 490,
+      "repeated_steps": 0,
+      "skipping_steps": 0,
+      "valid_frames": 490,
+      "rgb_depth_index_equal": true,
+      "offset_from_anchor_ms": {
+        "min": 0.0,
+        "median": 0.0,
+        "max": 0.0
+      },
+      "image_hw": [
+        1080,
+        1920
+      ],
+      "K_fx_fy_cx_cy": [
+        1505.6656494140625,
+        1505.6656494140625,
+        975.812255859375,
+        520.2508544921875
+      ],
+      "world_T_camera_translation_m": [
+        0.37861749362037694,
+        0.35865096273259595,
+        0.9747715436172444
+      ],
+      "depth_unit_m": 0.001,
+      "depth_saturated_raw": 8191
+    },
+    {
+      "serial": "12933256",
+      "rgb_stream_id": "zed_12933256_left_rgb",
+      "depth_stream_id": "zed_12933256_depth_zed_sdk_neural_plus",
+      "converted_frame_index_half_open": [
+        323,
+        813
+      ],
+      "distinct_frames": 490,
+      "repeated_steps": 0,
+      "skipping_steps": 0,
+      "valid_frames": 490,
+      "rgb_depth_index_equal": true,
+      "offset_from_anchor_ms": {
+        "min": -5.858352,
+        "median": -1.746197,
+        "max": 1.4765119999999998
+      },
+      "image_hw": [
+        1080,
+        1920
+      ],
+      "K_fx_fy_cx_cy": [
+        1485.1964111328125,
+        1485.1964111328125,
+        1016.495849609375,
+        529.3971557617188
+      ],
+      "world_T_camera_translation_m": [
+        0.6950866726146973,
+        -0.8347046984835544,
+        0.5782811473286448
+      ],
+      "depth_unit_m": 0.001,
+      "depth_saturated_raw": 8191
+    },
+    {
+      "serial": "17736741",
+      "rgb_stream_id": "zed_17736741_left_rgb",
+      "depth_stream_id": "zed_17736741_depth_zed_sdk_neural_plus",
+      "converted_frame_index_half_open": [
+        323,
+        813
+      ],
+      "distinct_frames": 490,
+      "repeated_steps": 0,
+      "skipping_steps": 0,
+      "valid_frames": 490,
+      "rgb_depth_index_equal": true,
+      "offset_from_anchor_ms": {
+        "min": -12.117402,
+        "median": -8.964319499999998,
+        "max": -0.8989119999999999
+      },
+      "image_hw": [
+        1080,
+        1920
+      ],
+      "K_fx_fy_cx_cy": [
+        1509.04736328125,
+        1509.04736328125,
+        954.3002319335938,
+        518.1400756835938
+      ],
+      "world_T_camera_translation_m": [
+        -0.33081317530788323,
+        0.3636141220708792,
+        0.9671273536451334
+      ],
+      "depth_unit_m": 0.001,
+      "depth_saturated_raw": 8191
+    },
+    {
+      "serial": "23007103",
+      "rgb_stream_id": "zed_23007103_left_rgb",
+      "depth_stream_id": "zed_23007103_depth_zed_sdk_neural_plus",
+      "converted_frame_index_half_open": [
+        323,
+        813
+      ],
+      "distinct_frames": 490,
+      "repeated_steps": 0,
+      "skipping_steps": 0,
+      "valid_frames": 490,
+      "rgb_depth_index_equal": true,
+      "offset_from_anchor_ms": {
+        "min": -16.370169999999998,
+        "median": -12.0987045,
+        "max": -5.182831
+      },
+      "image_hw": [
+        1080,
+        1920
+      ],
+      "K_fx_fy_cx_cy": [
+        1054.3436279296875,
+        1054.3436279296875,
+        969.4041748046875,
+        516.3909301757812
+      ],
+      "world_T_camera_translation_m": [
+        -0.5916520560802326,
+        -0.6322488212026725,
+        0.5168520851731121
+      ],
+      "depth_unit_m": 0.001,
+      "depth_saturated_raw": 8191
+    }
+  ],
+  "lineage": {
+    "session_id": "session_20260921_230830_350739",
+    "session_path": "/mnt/data2/magna/belt_perception/converted_datasets/sessions/session_20260921_230830_350739",
+    "window_path": "/mnt/data2/magna/belt_perception_shared/phystwin_model_corpus_expansion/lab/session_20260921_230830_350739/window_anchor0324-0813/phystwin_window.yaml",
+    "window_sha256": "2a754b0abd62e11c432d571fc0fa97b12307d1c423595dbcba4f837793e3dbc6",
+    "window_resolved": {
+      "duration_s": 16.35876,
+      "end_anchor_timestamp_ns": 1790046562162025322,
+      "end_sync_index_exclusive": 813,
+      "frame_count": 490,
+      "start_anchor_timestamp_ns": 1790046545803265683,
+      "start_sync_index": 323
+    },
+    "manual_annotation_ns": [
+      1790046545803265683,
+      1790046562162025322
+    ],
+    "anchor_stream_id": "zed_12540311_left_rgb",
+    "sync_clock": "sync_time_ns (host_unix_time_ns)",
+    "device_clock": "device_time_ns",
+    "frame_association": "per view: consecutive recorded frames over the sidecar's per-camera native range; depth nearest to each RGB time, ties to the earlier frame, no tolerance",
+    "intrinsics_source": "metadata/calibration.json camera_intrinsics at the recorded stream size",
+    "calibration": {
+      "package_dir": "metadata/calibration_package",
+      "world_frame": "table",
+      "pose_source": "phase_05_final",
+      "final_transform_source": "combined_fixed_movable_ba",
+      "source_run_name": "20260921_200440",
+      "candidate_pose_set_name": "fixed020_movable1",
+      "world_T_camera_bundle": "world_T_camera_by_serial.npz",
+      "world_T_camera_bundle_sha256": "2bcc404a8e3c4315527d0573dfdecaac7feec797a2b8cb5b581fbe9f94fbf8d5"
+    },
+    "frame_association_mode": "per_camera_native_range"
+  },
+  "samples": [
+    {
+      "t": 0,
+      "serial": "12540311",
+      "converted_frame_index": 324,
+      "rgb": {
+        "dtype": "uint8",
+        "shape": [
+          1080,
+          1920,
+          3
+        ]
+      },
+      "depth_raw": {
+        "dtype": "uint16",
+        "shape": [
+          1080,
+          1920
+        ],
+        "min": 0,
+        "max": 4971
+      },
+      "depth_zero_fraction": 0.02533468364197531,
+      "depth_saturated_count": 0,
+      "depth_valid_m_min_median_max": [
+        0.596,
+        1.309,
+        4.971
+      ]
+    },
+    {
+      "t": 0,
+      "serial": "12933256",
+      "converted_frame_index": 323,
+      "rgb": {
+        "dtype": "uint8",
+        "shape": [
+          1080,
+          1920,
+          3
+        ]
+      },
+      "depth_raw": {
+        "dtype": "uint16",
+        "shape": [
+          1080,
+          1920
+        ],
+        "min": 0,
+        "max": 6964
+      },
+      "depth_zero_fraction": 0.04088445216049383,
+      "depth_saturated_count": 0,
+      "depth_valid_m_min_median_max": [
+        0.554,
+        1.266,
+        6.964
+      ]
+    },
+    {
+      "t": 0,
+      "serial": "17736741",
+      "converted_frame_index": 323,
+      "rgb": {
+        "dtype": "uint8",
+        "shape": [
+          1080,
+          1920,
+          3
+        ]
+      },
+      "depth_raw": {
+        "dtype": "uint16",
+        "shape": [
+          1080,
+          1920
+        ],
+        "min": 0,
+        "max": 3669
+      },
+      "depth_zero_fraction": 0.018706114969135802,
+      "depth_saturated_count": 0,
+      "depth_valid_m_min_median_max": [
+        0.5740000000000001,
+        1.1480000000000001,
+        3.669
+      ]
+    },
+    {
+      "t": 0,
+      "serial": "23007103",
+      "converted_frame_index": 323,
+      "rgb": {
+        "dtype": "uint8",
+        "shape": [
+          1080,
+          1920,
+          3
+        ]
+      },
+      "depth_raw": {
+        "dtype": "uint16",
+        "shape": [
+          1080,
+          1920
+        ],
+        "min": 0,
+        "max": 3980
+      },
+      "depth_zero_fraction": 0.03787519290123457,
+      "depth_saturated_count": 0,
+      "depth_valid_m_min_median_max": [
+        0.481,
+        1.072,
+        3.98
+      ]
+    }
+  ]
+}

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/masks/12540311/hand_A/run0001_t0000-0490.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:91411b31c1c5b26a1c418a08ede49a7bd579fa359f42d8dd87f310163a936e3f
+size 692383

sessions/session_20260921_230830_350739/preprocessing/mask-supplier-window-anchor0324-0813/native/masks/12540311/hand_B/run0001_t0000-0490.npz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d2aab6361834a3fd77e7231b6cb7c794efdcc1ed7c225f443419627b39df4c39
+size 470636