Upload README_EXTRACT_DEPTH.txt with huggingface_hub

README_EXTRACT_DEPTH.txt

@@ -0,0 +1,32 @@
+# Extract Depth-Only Archives
+
+Archives were created from depth-only copies:
+- ArkitScenes depth (lowres_depth) under ./arkitscenes/
+- ScanNet++ depth (depth) under ./scannetpp/
+
+## Extract in the current directory
+# ArkitScenes depth
+cat arkitscenes_depth.tar.zst.* | zstd -d | tar -xf -
+# ScanNet++ depth
+cat scannetpp_depth.tar.zst.*   | zstd -d | tar -xf -
+
+## Extract to a chosen location (e.g., /data/reason3r/depth_only/)
+mkdir -p /data/reason3r/depth_only/
+cat arkitscenes_depth.tar.zst.* | zstd -d | tar -xf - -C /data/reason3r/depth_only/
+cat scannetpp_depth.tar.zst.*   | zstd -d | tar -xf - -C /data/reason3r/depth_only/
+
+## Verify integrity without extracting
+cat arkitscenes_depth.tar.zst.* | zstd -t
+cat scannetpp_depth.tar.zst.*   | zstd -t
+
+## List contents
+cat arkitscenes_depth.tar.zst.* | zstd -d | tar -tf - | head -40
+cat scannetpp_depth.tar.zst.*   | zstd -d | tar -tf - | head -40
+
+## Transfer (rsync preserves chunking)
+rsync -avhP arkitscenes_depth.tar.zst.* user@remote:/dest/
+rsync -avhP scannetpp_depth.tar.zst.*   user@remote:/dest/
+
+# Notes
+# - Chunk filenames end in .000, .001, .002, ...
+# - Ensure all sequential chunks are present before extracting.