Dataset Viewer
The dataset viewer is not available for this subset.
Cannot get the split names for the config 'default' of the dataset.
Exception:    SplitsNotFoundError
Message:      The split names could not be parsed from the dataset config.
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 286, in get_dataset_config_info
                  for split_generator in builder._split_generators(
                                         ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      StreamingDownloadManager(base_path=builder.base_path, download_config=download_config)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 81, in _split_generators
                  first_examples = list(islice(pipeline, self.NUM_EXAMPLES_FOR_FEATURES_INFERENCE))
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 34, in _get_pipeline_from_tar
                  for filename, f in tar_iterator:
                                     ^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/track.py", line 49, in __iter__
                  for x in self.generator(*self.args):
                           ~~~~~~~~~~~~~~^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/file_utils.py", line 1409, in _iter_from_urlpath
                  yield from cls._iter_tar(f)
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/file_utils.py", line 1360, in _iter_tar
                  stream = tarfile.open(fileobj=f, mode="r|*")
                File "/usr/local/lib/python3.14/tarfile.py", line 1959, in open
                  t = cls(name, filemode, stream, **kwargs)
                File "/usr/local/lib/python3.14/tarfile.py", line 1822, in __init__
                  self.firstmember = self.next()
                                     ~~~~~~~~~^^
                File "/usr/local/lib/python3.14/tarfile.py", line 2879, in next
                  raise ReadError(str(e)) from None
              tarfile.ReadError: truncated header
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/split_names.py", line 66, in compute_split_names_from_streaming_response
                  for split in get_dataset_split_names(
                               ~~~~~~~~~~~~~~~~~~~~~~~^
                      path=dataset,
                      ^^^^^^^^^^^^^
                      config_name=config,
                      ^^^^^^^^^^^^^^^^^^^
                      token=hf_token,
                      ^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
                  info = get_dataset_config_info(
                      path,
                  ...<6 lines>...
                      **config_kwargs,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 291, in get_dataset_config_info
                  raise SplitsNotFoundError("The split names could not be parsed from the dataset config.") from err
              datasets.inspect.SplitsNotFoundError: The split names could not be parsed from the dataset config.

Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.

UniVTAC Zarr Ready-to-Train Archive

This dataset repo stores the UniVTAC Zarr package used by DreamZero and Motus in the VLA SFT deployment suite.

DreamTacVLA uses poet70/data-univtac-dtvla instead.

Files

File Size SHA256
univtac-zarr.tar.gz.part-00000 25,433,417,443 bytes 1823fc5f9be91bf754b821922611e41a6d1223047bce4317757dff7c178ea352
univtac-zarr.tar.gz.part-00001 25,433,417,444 bytes 0e81528b321306297be923be386c3df1e583acdfdef3536752d1683fbae32b7e
univtac-zarr.tar.gz.sha256 86 bytes b289c74147217ad7da371c43298b0dbd0fee3318689f3b08c0274c622d491394
univtac-zarr.tar.gz.parts.sha256 194 bytes per-part checksum file
univtac-zarr.tar.gz.manifest.txt 353 bytes reassembly manifest

The original archive is 50,866,834,887 bytes, so it is split into two parts to stay below the Hugging Face single-file limit.

Usage

The recommended entrypoint is poet70/vla-sft-suite; its scripts/download_artifacts.sh downloads, verifies, reassembles, and extracts this archive automatically.

Manual reassembly:

hf download poet70/data-univtac --repo-type dataset --local-dir ./data-univtac
cd data-univtac
sha256sum -c univtac-zarr.tar.gz.parts.sha256
cat univtac-zarr.tar.gz.part-* > univtac-zarr.tar.gz
sha256sum -c univtac-zarr.tar.gz.sha256
tar -xzf univtac-zarr.tar.gz
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