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README.md

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+# EgoSAT ROI Cache Release Candidate
+
+This is a release-candidate Dataset Card draft for the EgoSAT ROI cache dataset.
+
+## Overview
+
+The ROI cache stores precomputed region/object metadata for EgoSAT samples. It is intended for ROI-aware variants such as ROI-TimeChat and is distributed separately from the main EgoSAT benchmark dataset.
+
+This dataset does not contain raw Ego4D videos. Users must obtain Ego4D access/license separately before running any workflow that reads the underlying videos.
+
+## Dataset Structure
+
+```text
+.
+  README.md
+  roi_cache/
+  metadata/
+    roi_cache_index.jsonl
+    layout_version.json
+    checksums.json
+    checksums_all.json
+    release_manifest.json
+```
+
+`roi_cache/` contains per-sample cache files. `metadata/roi_cache_index.jsonl` provides the index used to align cache files with EgoSAT samples. `metadata/layout_version.json` records the filename pattern and cache layout.
+
+## Alignment
+
+Cache filenames follow:
+
+```text
+<video_uid>__<clip_id>__<clip_uid>.roi_cache_merged_fps1.jsonl
+```
+
+Use the filename components or `metadata/roi_cache_index.jsonl` to align a cache file with the corresponding EgoSAT sample. The cache is an auxiliary release for EgoSAT samples and ROI-TimeChat-style experiments.
+
+## Ego4D Videos
+
+Raw Ego4D videos are not included. The cache does not grant Ego4D video access or redistribution rights. Users still need to obtain Ego4D license approval and configure their local video root separately.
+
+## License
+
+Dataset license: TODO, to be confirmed before public release.
+
+Raw Ego4D videos are governed by the Ego4D license and are not redistributed here. This ROI cache should be uploaded as a separate HuggingFace Dataset candidate.
+
+## Responsible Use
+
+Use this cache only with properly licensed Ego4D video access and compatible EgoSAT annotations. Do not redistribute raw videos or private local paths.

metadata/layout_version.json

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+{
+  "layout_version": "roi_cache_merged_fps1",
+  "filename_pattern": "<video_uid>__<clip_id>__<clip_uid>.roi_cache_merged_fps1.jsonl",
+  "record_format": "jsonl",
+  "coord": "norm",
+  "generated_at": "2026-06-24T18:18:46+00:00"
+}

metadata/release_manifest.json

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+{
+    "release_candidate":  true,
+    "generated_at":  "2026-06-25T08:49:32Z",
+    "included_components":  [
+                                "README.md",
+                                "roi_cache/",
+                                "metadata/roi_cache_index.jsonl",
+                                "metadata/layout_version.json",
+                                "metadata/checksums.json",
+                                "metadata/checksums_all.json"
+                            ],
+    "excluded_components":  [
+                                "raw Ego4D videos",
+                                "main EgoSAT benchmark GT/MCQ/SFT payload",
+                                "model checkpoints and prediction outputs",
+                                "internal staging/audit directories"
+                            ],
+    "notes":  [
+                  "This is a separate ROI cache release candidate, not part of the main benchmark dataset payload.",
+                  "Checksums use relative paths and do not contain local machine roots.",
+                  "Generated checksum files exclude generated checksum/manifest files to avoid self-referential hashes.",
+                  "Dataset license is TODO and must be confirmed before public release.",
+                  "Raw Ego4D videos are not redistributed."
+              ]
+}