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index 0000000000000000000000000000000000000000..ec86c26daf9bbf21b277ec9236d3d948f43a6e37
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+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00025088",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
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+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
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+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
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+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
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+      },
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+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
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+      "valid_key": [
+        "intrinsic",
+        "valid"
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+        "profile": "pt/tensor_bundle/v1"
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+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
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+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
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+        "joint",
+        "coordinate"
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+        "hand",
+        "joint"
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+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
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+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
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+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
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+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
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+          "axes": [
+            "T",
+            "hand",
+            "joint"
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+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
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+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
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+            "profile": "pt/tensor_bundle/v1"
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+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
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+      "data_key": [
+        "xyz",
+        "data"
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+      "valid_key": [
+        "xyz",
+        "valid"
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+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
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+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
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+        "T",
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+        "joint"
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+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
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+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
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+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "rgb_image",
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+        18,
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+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
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+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
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+            "profile": "pt/tensor_bundle/v1"
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+            "profile": "pt/tensor_bundle/v1"
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+          "valid_axes": [
+            "T",
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+        "uv",
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+        "uv",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "depth": {
+      "available": true,
+      "schema_id": "depth/z_float32/v1",
+      "data_ref": "observation/depth.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "observation/depth_valid.mkv",
+      "valid_axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "storage": {
+        "profile": "mkv/depth_float32_bits/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          640,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "valid_storage": {
+        "profile": "mkv/bool_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "unit": "m",
+      "depth_type": "z",
+      "depth_origin": "rendered",
+      "coordinate_frame": "current_rgb_camera",
+      "pixel_grid": "current_rgb",
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Official code (R*256+G)/65535*5 m; preserve complete float32 bits; source supplies every pixel, no additional invalid-pixel convention inferred"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle",
+        "member_pattern": "RHD_published_v2/training/depth/{source_frame_id:05d}.png"
+      }
+    },
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+      "available": true,
+      "schema_id": "segment/uint16_labels/v1",
+      "data_ref": "annotation/segment/mask.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "annotation/segment/mask_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Native codes preserved; source 0 background mapped to 65534; native fine-region codes retained without merging"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/uint16_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "segmentation_type": "semantic",
+      "mapping_ref": "annotation/segment/instances.jsonl",
+      "coverage": {
+        "kind": "full",
+        "scope": "official rendered background, person and both hand regions"
+      }
+    }
+  },
+  "split": "train",
+  "storage_revision": "lossless-video-2026-09-18",
+  "split_scheme": "RHD_official_training_evaluation",
+  "split_source_locator": {
+    "archive": "raw/data/RHD_v1-1.zip",
+    "member_prefix": "RHD_published_v2/training"
+  },
+  "view_type": "exo"
+}
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diff --git a/RHD/shared-v1.1/data/training_00025600/camera/metainfo.json b/RHD/shared-v1.1/data/training_00025600/camera/metainfo.json
new file mode 100644
index 0000000000000000000000000000000000000000..eac47bdcebac720fc20bdd110dab7f7dfdcc9f1e
--- /dev/null
+++ b/RHD/shared-v1.1/data/training_00025600/camera/metainfo.json
@@ -0,0 +1,433 @@
+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00025600",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
+  "sampling": {
+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
+  "components": {
+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
+      ],
+      "valid_key": [
+        "intrinsic",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_xyz": {
+      "available": true,
+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "m",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
+        12,
+        11,
+        10,
+        9,
+        16,
+        15,
+        14,
+        13,
+        20,
+        19,
+        18,
+        17
+      ],
+      "attributes": {
+        "visibility": {
+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "xyz",
+        "data"
+      ],
+      "valid_key": [
+        "xyz",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_uv": {
+      "available": true,
+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "pixel",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "rgb_image",
+      "source_index_map": [
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diff --git a/RHD/shared-v1.1/data/training_00026112/camera/metainfo.json b/RHD/shared-v1.1/data/training_00026112/camera/metainfo.json
new file mode 100644
index 0000000000000000000000000000000000000000..825ca5ccc3a277f5072bc1d7e8003d6bd31fbee9
--- /dev/null
+++ b/RHD/shared-v1.1/data/training_00026112/camera/metainfo.json
@@ -0,0 +1,433 @@
+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00026112",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
+  "sampling": {
+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
+  "components": {
+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
+      ],
+      "valid_key": [
+        "intrinsic",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_xyz": {
+      "available": true,
+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "m",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
+        12,
+        11,
+        10,
+        9,
+        16,
+        15,
+        14,
+        13,
+        20,
+        19,
+        18,
+        17
+      ],
+      "attributes": {
+        "visibility": {
+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "xyz",
+        "data"
+      ],
+      "valid_key": [
+        "xyz",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_uv": {
+      "available": true,
+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
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+      "timebase_role": "index_only",
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+      "coverage": {
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index 0000000000000000000000000000000000000000..386f736d8e862bf0c6c96e38f48c24d092bb9449
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+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00026624",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
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+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
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+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
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+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
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+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
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+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
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+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
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+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
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+        "intrinsic",
+        "data"
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+        "profile": "pt/tensor_bundle/v1"
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+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
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+        "coordinate"
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+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
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+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
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+      "coordinate_frame": "camera",
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+        4,
+        3,
+        2,
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+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
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+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
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+            "T",
+            "hand",
+            "joint"
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+        "xyz",
+        "data"
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+      "valid_key": [
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+        "valid"
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+        "profile": "pt/tensor_bundle/v1"
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+        "profile": "pt/tensor_bundle/v1"
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+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
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+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
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+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
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+      "coordinate_frame": "rgb_image",
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+            "T",
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+            "joint"
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+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
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+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
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+            "visibility",
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+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
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+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
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+      "available": true,
+      "schema_id": "depth/z_float32/v1",
+      "data_ref": "observation/depth.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "observation/depth_valid.mkv",
+      "valid_axes": [
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+        "height",
+        "width"
+      ],
+      "storage": {
+        "profile": "mkv/depth_float32_bits/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          640,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "valid_storage": {
+        "profile": "mkv/bool_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray",
+        "encoded_size": [
+          320,
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+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "unit": "m",
+      "depth_type": "z",
+      "depth_origin": "rendered",
+      "coordinate_frame": "current_rgb_camera",
+      "pixel_grid": "current_rgb",
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Official code (R*256+G)/65535*5 m; preserve complete float32 bits; source supplies every pixel, no additional invalid-pixel convention inferred"
+      },
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+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle",
+        "member_pattern": "RHD_published_v2/training/depth/{source_frame_id:05d}.png"
+      }
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+      "schema_id": "segment/uint16_labels/v1",
+      "data_ref": "annotation/segment/mask.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
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+      "valid_ref": "annotation/segment/mask_valid.pt",
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+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Native codes preserved; source 0 background mapped to 65534; native fine-region codes retained without merging"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
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+        "profile": "mkv/uint16_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "segmentation_type": "semantic",
+      "mapping_ref": "annotation/segment/instances.jsonl",
+      "coverage": {
+        "kind": "full",
+        "scope": "official rendered background, person and both hand regions"
+      }
+    }
+  },
+  "split": "train",
+  "storage_revision": "lossless-video-2026-09-18",
+  "split_scheme": "RHD_official_training_evaluation",
+  "split_source_locator": {
+    "archive": "raw/data/RHD_v1-1.zip",
+    "member_prefix": "RHD_published_v2/training"
+  },
+  "view_type": "exo"
+}
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diff --git a/RHD/shared-v1.1/data/training_00027136/camera/metainfo.json b/RHD/shared-v1.1/data/training_00027136/camera/metainfo.json
new file mode 100644
index 0000000000000000000000000000000000000000..957f78d95763c9d03f90c958b9319c58d5655280
--- /dev/null
+++ b/RHD/shared-v1.1/data/training_00027136/camera/metainfo.json
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+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00027136",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
+  "sampling": {
+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
+  "components": {
+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
+      ],
+      "valid_key": [
+        "intrinsic",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_xyz": {
+      "available": true,
+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "m",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
+        12,
+        11,
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+        14,
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+        20,
+        19,
+        18,
+        17
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+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "xyz",
+        "data"
+      ],
+      "valid_key": [
+        "xyz",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_uv": {
+      "available": true,
+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "pixel",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "rgb_image",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
+        12,
+        11,
+        10,
+        9,
+        16,
+        15,
+        14,
+        13,
+        20,
+        19,
+        18,
+        17
+      ],
+      "attributes": {
+        "visibility": {
+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "uv",
+        "data"
+      ],
+      "valid_key": [
+        "uv",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "depth": {
+      "available": true,
+      "schema_id": "depth/z_float32/v1",
+      "data_ref": "observation/depth.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "observation/depth_valid.mkv",
+      "valid_axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "storage": {
+        "profile": "mkv/depth_float32_bits/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          640,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "valid_storage": {
+        "profile": "mkv/bool_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "unit": "m",
+      "depth_type": "z",
+      "depth_origin": "rendered",
+      "coordinate_frame": "current_rgb_camera",
+      "pixel_grid": "current_rgb",
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Official code (R*256+G)/65535*5 m; preserve complete float32 bits; source supplies every pixel, no additional invalid-pixel convention inferred"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle",
+        "member_pattern": "RHD_published_v2/training/depth/{source_frame_id:05d}.png"
+      }
+    },
+    "segment": {
+      "available": true,
+      "schema_id": "segment/uint16_labels/v1",
+      "data_ref": "annotation/segment/mask.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "annotation/segment/mask_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Native codes preserved; source 0 background mapped to 65534; native fine-region codes retained without merging"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/uint16_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "segmentation_type": "semantic",
+      "mapping_ref": "annotation/segment/instances.jsonl",
+      "coverage": {
+        "kind": "full",
+        "scope": "official rendered background, person and both hand regions"
+      }
+    }
+  },
+  "split": "train",
+  "storage_revision": "lossless-video-2026-09-18",
+  "split_scheme": "RHD_official_training_evaluation",
+  "split_source_locator": {
+    "archive": "raw/data/RHD_v1-1.zip",
+    "member_prefix": "RHD_published_v2/training"
+  },
+  "view_type": "exo"
+}
diff --git a/RHD/shared-v1.1/data/training_00027136/camera/observation/depth.mkv b/RHD/shared-v1.1/data/training_00027136/camera/observation/depth.mkv
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diff --git a/RHD/shared-v1.1/data/training_00027136/camera/observation/depth_valid.mkv b/RHD/shared-v1.1/data/training_00027136/camera/observation/depth_valid.mkv
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diff --git a/RHD/shared-v1.1/data/training_00027136/camera/observation/rgb.mkv b/RHD/shared-v1.1/data/training_00027136/camera/observation/rgb.mkv
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diff --git a/RHD/shared-v1.1/data/training_00027648/camera/metainfo.json b/RHD/shared-v1.1/data/training_00027648/camera/metainfo.json
new file mode 100644
index 0000000000000000000000000000000000000000..86c60bf969c110135dc3713a79522c34e885d2fd
--- /dev/null
+++ b/RHD/shared-v1.1/data/training_00027648/camera/metainfo.json
@@ -0,0 +1,433 @@
+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00027648",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
+  "sampling": {
+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
+  "components": {
+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
+      ],
+      "valid_key": [
+        "intrinsic",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_xyz": {
+      "available": true,
+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "m",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
+        12,
+        11,
+        10,
+        9,
+        16,
+        15,
+        14,
+        13,
+        20,
+        19,
+        18,
+        17
+      ],
+      "attributes": {
+        "visibility": {
+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
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diff --git a/RHD/shared-v1.1/data/training_00028160/camera/metainfo.json b/RHD/shared-v1.1/data/training_00028160/camera/metainfo.json
new file mode 100644
index 0000000000000000000000000000000000000000..bc612cef730d0891a95239dd494eb85394bf6f83
--- /dev/null
+++ b/RHD/shared-v1.1/data/training_00028160/camera/metainfo.json
@@ -0,0 +1,433 @@
+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00028160",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
+  "sampling": {
+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
+  "components": {
+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
+      ],
+      "valid_key": [
+        "intrinsic",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_xyz": {
+      "available": true,
+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "m",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
+        12,
+        11,
+        10,
+        9,
+        16,
+        15,
+        14,
+        13,
+        20,
+        19,
+        18,
+        17
+      ],
+      "attributes": {
+        "visibility": {
+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "xyz",
+        "data"
+      ],
+      "valid_key": [
+        "xyz",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_uv": {
+      "available": true,
+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "pixel",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "rgb_image",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
+        12,
+        11,
+        10,
+        9,
+        16,
+        15,
+        14,
+        13,
+        20,
+        19,
+        18,
+        17
+      ],
+      "attributes": {
+        "visibility": {
+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "uv",
+        "data"
+      ],
+      "valid_key": [
+        "uv",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "depth": {
+      "available": true,
+      "schema_id": "depth/z_float32/v1",
+      "data_ref": "observation/depth.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "observation/depth_valid.mkv",
+      "valid_axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "storage": {
+        "profile": "mkv/depth_float32_bits/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          640,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "valid_storage": {
+        "profile": "mkv/bool_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "unit": "m",
+      "depth_type": "z",
+      "depth_origin": "rendered",
+      "coordinate_frame": "current_rgb_camera",
+      "pixel_grid": "current_rgb",
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Official code (R*256+G)/65535*5 m; preserve complete float32 bits; source supplies every pixel, no additional invalid-pixel convention inferred"
+      },
+      "source_locator": {
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diff --git a/RHD/shared-v1.1/data/training_00028672/camera/metainfo.json b/RHD/shared-v1.1/data/training_00028672/camera/metainfo.json
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index 0000000000000000000000000000000000000000..a3aeee7592f8639900179a567ba6681ab1addebf
--- /dev/null
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+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00028672",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
+  "sampling": {
+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
+  "components": {
+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
+      ],
+      "valid_key": [
+        "intrinsic",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_xyz": {
+      "available": true,
+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "m",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
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+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
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+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
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+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
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+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
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+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "xyz",
+        "data"
+      ],
+      "valid_key": [
+        "xyz",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_uv": {
+      "available": true,
+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "pixel",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "rgb_image",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
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+        15,
+        14,
+        13,
+        20,
+        19,
+        18,
+        17
+      ],
+      "attributes": {
+        "visibility": {
+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
+          ],
+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
+            "valid"
+          ],
+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_storage": {
+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "uv",
+        "data"
+      ],
+      "valid_key": [
+        "uv",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "depth": {
+      "available": true,
+      "schema_id": "depth/z_float32/v1",
+      "data_ref": "observation/depth.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "observation/depth_valid.mkv",
+      "valid_axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "storage": {
+        "profile": "mkv/depth_float32_bits/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          640,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "valid_storage": {
+        "profile": "mkv/bool_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "unit": "m",
+      "depth_type": "z",
+      "depth_origin": "rendered",
+      "coordinate_frame": "current_rgb_camera",
+      "pixel_grid": "current_rgb",
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Official code (R*256+G)/65535*5 m; preserve complete float32 bits; source supplies every pixel, no additional invalid-pixel convention inferred"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle",
+        "member_pattern": "RHD_published_v2/training/depth/{source_frame_id:05d}.png"
+      }
+    },
+    "segment": {
+      "available": true,
+      "schema_id": "segment/uint16_labels/v1",
+      "data_ref": "annotation/segment/mask.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "annotation/segment/mask_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Native codes preserved; source 0 background mapped to 65534; native fine-region codes retained without merging"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/uint16_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "segmentation_type": "semantic",
+      "mapping_ref": "annotation/segment/instances.jsonl",
+      "coverage": {
+        "kind": "full",
+        "scope": "official rendered background, person and both hand regions"
+      }
+    }
+  },
+  "split": "train",
+  "storage_revision": "lossless-video-2026-09-18",
+  "split_scheme": "RHD_official_training_evaluation",
+  "split_source_locator": {
+    "archive": "raw/data/RHD_v1-1.zip",
+    "member_prefix": "RHD_published_v2/training"
+  },
+  "view_type": "exo"
+}
diff --git a/RHD/shared-v1.1/data/training_00028672/camera/observation/depth.mkv b/RHD/shared-v1.1/data/training_00028672/camera/observation/depth.mkv
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diff --git a/RHD/shared-v1.1/data/training_00029184/camera/metainfo.json b/RHD/shared-v1.1/data/training_00029184/camera/metainfo.json
new file mode 100644
index 0000000000000000000000000000000000000000..1483a13252cbf08d0db01dc02687eceafac7dbb5
--- /dev/null
+++ b/RHD/shared-v1.1/data/training_00029184/camera/metainfo.json
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+{
+  "schema_version": "hand-warehouse/1.1",
+  "dataset_id": "RHD",
+  "release_id": "shared-v1.1",
+  "sequence_id": "training_00029184",
+  "camera_id": "camera",
+  "sample_type": "image",
+  "num_frames": 512,
+  "hand_slots": [
+    "left",
+    "right"
+  ],
+  "sampling": {
+    "type": "independent",
+    "source_fps": null,
+    "frames_ref": "camera/frames.jsonl",
+    "selection": "all source independent images sorted by source ID",
+    "shard_max_images": 512
+  },
+  "camera": {
+    "model": "pinhole",
+    "schema_id": "camera/pinhole/v1",
+    "image_size": [
+      320,
+      320
+    ]
+  },
+  "components": {
+    "rgb": {
+      "available": true,
+      "schema_id": "rgb/uint8/v1",
+      "data_ref": "observation/rgb.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width",
+        "channel"
+      ],
+      "valid_ref": "observation/rgb_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/ffv1_rgb/v1",
+        "codec": "ffv1",
+        "pixel_format": "bgr0",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only"
+    },
+    "intrinsic": {
+      "available": true,
+      "schema_id": "camera/pinhole/v1",
+      "data_ref": "camera/camera.pt",
+      "axes": [
+        "T",
+        "row",
+        "column"
+      ],
+      "valid_ref": "camera/camera.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "source values retained"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "data_key": [
+        "intrinsic",
+        "data"
+      ],
+      "valid_key": [
+        "intrinsic",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_xyz": {
+      "available": true,
+      "schema_id": "keypoints/xyz/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
+      ],
+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "m",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "camera",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
+        6,
+        5,
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+        17
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+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
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+            "visibility",
+            "data"
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+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
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+            "valid"
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+          "storage": {
+            "profile": "pt/tensor_bundle/v1"
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+            "profile": "pt/tensor_bundle/v1"
+          },
+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
+          ]
+        }
+      },
+      "data_key": [
+        "xyz",
+        "data"
+      ],
+      "valid_key": [
+        "xyz",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "keypoints_uv": {
+      "available": true,
+      "schema_id": "keypoints/uv/v1",
+      "data_ref": "annotation/keypoints/keypoints.pt",
+      "axes": [
+        "T",
+        "hand",
+        "joint",
+        "coordinate"
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+      "valid_ref": "annotation/keypoints/keypoints.pt",
+      "valid_axes": [
+        "T",
+        "hand",
+        "joint"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Keep both supplied hands including invisible points; reorder tip-to-palm to registered proximal-to-tip order"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "unit": "pixel",
+      "keypoint_schema": "rhd21/v1",
+      "coordinate_frame": "rgb_image",
+      "source_index_map": [
+        0,
+        4,
+        3,
+        2,
+        1,
+        8,
+        7,
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+        13,
+        20,
+        19,
+        18,
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+          "data_ref": "annotation/keypoints/keypoints.pt",
+          "axes": [
+            "T",
+            "hand",
+            "joint"
+          ],
+          "dtype": "bool",
+          "visibility_type": "bool",
+          "meaning": "source per-keypoint visibility",
+          "provenance": {
+            "kind": "format_conversion",
+            "method": "native uv_vis visibility reordered with coordinates"
+          },
+          "source_locator": {
+            "archive": "raw/data/RHD_v1-1.zip",
+            "annotation": "RHD_published_v2/training/anno_training.pickle"
+          },
+          "data_key": [
+            "visibility",
+            "data"
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+          "valid_ref": "annotation/keypoints/keypoints.pt",
+          "valid_key": [
+            "visibility",
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+            "profile": "pt/tensor_bundle/v1"
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+            "profile": "pt/tensor_bundle/v1"
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+          "valid_axes": [
+            "T",
+            "hand",
+            "joint"
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+        "uv",
+        "data"
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+      "valid_key": [
+        "uv",
+        "valid"
+      ],
+      "storage": {
+        "profile": "pt/tensor_bundle/v1"
+      },
+      "valid_storage": {
+        "profile": "pt/tensor_bundle/v1"
+      }
+    },
+    "depth": {
+      "available": true,
+      "schema_id": "depth/z_float32/v1",
+      "data_ref": "observation/depth.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "observation/depth_valid.mkv",
+      "valid_axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "storage": {
+        "profile": "mkv/depth_float32_bits/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          640,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "valid_storage": {
+        "profile": "mkv/bool_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "unit": "m",
+      "depth_type": "z",
+      "depth_origin": "rendered",
+      "coordinate_frame": "current_rgb_camera",
+      "pixel_grid": "current_rgb",
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Official code (R*256+G)/65535*5 m; preserve complete float32 bits; source supplies every pixel, no additional invalid-pixel convention inferred"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle",
+        "member_pattern": "RHD_published_v2/training/depth/{source_frame_id:05d}.png"
+      }
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+      "schema_id": "segment/uint16_labels/v1",
+      "data_ref": "annotation/segment/mask.mkv",
+      "axes": [
+        "T",
+        "height",
+        "width"
+      ],
+      "valid_ref": "annotation/segment/mask_valid.pt",
+      "valid_axes": [
+        "T"
+      ],
+      "provenance": {
+        "kind": "format_conversion",
+        "method": "Native codes preserved; source 0 background mapped to 65534; native fine-region codes retained without merging"
+      },
+      "source_locator": {
+        "archive": "raw/data/RHD_v1-1.zip",
+        "annotation": "RHD_published_v2/training/anno_training.pickle"
+      },
+      "storage": {
+        "profile": "mkv/uint16_ffv1/v1",
+        "codec": "ffv1",
+        "pixel_format": "gray16le",
+        "encoded_size": [
+          320,
+          320
+        ],
+        "source_lossy": false,
+        "decoder": "ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers",
+        "encoder_parameters": [
+          "-level",
+          "3"
+        ]
+      },
+      "storage_fps": 1,
+      "timebase_role": "index_only",
+      "segmentation_type": "semantic",
+      "mapping_ref": "annotation/segment/instances.jsonl",
+      "coverage": {
+        "kind": "full",
+        "scope": "official rendered background, person and both hand regions"
+      }
+    }
+  },
+  "split": "train",
+  "storage_revision": "lossless-video-2026-09-18",
+  "split_scheme": "RHD_official_training_evaluation",
+  "split_source_locator": {
+    "archive": "raw/data/RHD_v1-1.zip",
+    "member_prefix": "RHD_published_v2/training"
+  },
+  "view_type": "exo"
+}
diff --git a/RHD/shared-v1.1/data/training_00029184/camera/observation/depth.mkv b/RHD/shared-v1.1/data/training_00029184/camera/observation/depth.mkv
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diff --git a/RHD/shared-v1.1/data/training_00029184/camera/observation/depth_valid.mkv b/RHD/shared-v1.1/data/training_00029184/camera/observation/depth_valid.mkv
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