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/python3.12/site-packages/datasets/inspect.py", line 286, in get_dataset_config_info
                  for split_generator in builder._split_generators(
                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 80, in _split_generators
                  first_examples = list(islice(pipeline, self.NUM_EXAMPLES_FOR_FEATURES_INFERENCE))
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 33, in _get_pipeline_from_tar
                  for filename, f in tar_iterator:
                                     ^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/utils/track.py", line 49, in __iter__
                  for x in self.generator(*self.args):
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/utils/file_utils.py", line 1380, in _iter_from_urlpath
                  yield from cls._iter_tar(f)
                File "/usr/local/lib/python3.12/site-packages/datasets/utils/file_utils.py", line 1331, in _iter_tar
                  stream = tarfile.open(fileobj=f, mode="r|*")
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/tarfile.py", line 1886, in open
                  t = cls(name, filemode, stream, **kwargs)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/tarfile.py", line 1762, in __init__
                  self.firstmember = self.next()
                                     ^^^^^^^^^^^
                File "/usr/local/lib/python3.12/tarfile.py", line 2750, in next
                  raise ReadError(str(e)) from None
              tarfile.ReadError: invalid 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 65, in compute_split_names_from_streaming_response
                  for split in get_dataset_split_names(
                               ^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
                  info = get_dataset_config_info(
                         ^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/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.

MathTree Snapshots

This dataset repository is the public sync point for MathTree.

MathTree is a verifier-backed mathematical discovery system. The canonical ledger is maintained privately by the operators. This repository only publishes read-only snapshots of that ledger so contributors can sync a local frontier, play locally, and produce source-only submission patches.

What This Repo Contains

  • latest.json points to the current checkpoint and ordered delta chain.
  • checkpoints/ contains full snapshot archives.
  • deltas/ contains smaller updates after the latest checkpoint.

These files are distribution artifacts. They are not the canonical database and they are not a submission inbox.

How Contributors Use It

Install MathTree from the project source, then sync the latest public frontier:

LEAN_PROJECT_ROOT=packages/verifiers/lean4/lean
SNAPSHOT_INDEX_URL=https://huggingface.co/datasets/comfortably-dumb/mathtree-snapshots/resolve/main/latest.json

uv run mathtree --database-url sqlite:///data/local-frontier.db snapshot sync \
  --index "$SNAPSHOT_INDEX_URL" \
  --state-dir .mathtree/snapshots \
  --object-store-root data/local_object_store \
  --project-root "$LEAN_PROJECT_ROOT"

Then start a local patch game from that synced frontier:

uv run mathtree --database-url sqlite:///data/local-frontier.db play \
  --sync-state .mathtree/snapshots \
  --object-store-root data/local_object_store \
  --project-root "$LEAN_PROJECT_ROOT" \
  --game-dir .mathtree/patch-game

After playing, export a source-only submission patch:

uv run mathtree submit-patch from-game \
  --game-dir .mathtree/patch-game \
  --output-patch contribution.mtpatch.json

Submit contribution.mtpatch.json through the project submission channel. The MathTree operators evaluate patches against the latest canonical ledger and publish accepted changes back here as future deltas or checkpoints.

Operator Notes

Only maintainers should update this repository. The expected layout is:

latest.json
checkpoints/<snapshot-id>.tar.zst
deltas/<delta-id>.tar.zst

The snapshot sync command verifies archive hashes before applying any checkpoint or delta. Correctness comes from the signed-off manifest content and canonical MathTree event hashes, not from trusting a local cache.

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