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LICENSE.txt

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+PENGWIN Task 1 (CT pelvic fracture segmentation) originates from the PENGWIN
+2024 challenge (MICCAI 2024) and is distributed by the challenge organizers via
+Zenodo record 10927452.
+
+LICENSE NOTE -- the upstream sources disagree:
+  * The Zenodo record metadata declares  CC BY 4.0  (license id "cc-by-4.0",
+    access_right "open").
+  * The challenge report states the CT training set is released under
+    CC BY-NC-SA.
+
+This mirror adopts the more restrictive, author-stated CC BY-NC-SA 4.0 so that
+downstream use is safe under either reading. Users who need commercial or
+non-ShareAlike terms should consult the Zenodo record and contact the organizers
+directly rather than relying on this mirror's choice.
+
+  https://creativecommons.org/licenses/by-nc-sa/4.0/
+
+Data citation:
+  Sang, Y., Liu, Y., Yibulayimu, S., Zhu, G., Wang, Y., Zhao, C., & Wu, X.
+  PENGWIN Task 1: Pelvic Fracture Segmentation on CT [Data set]. Zenodo.
+  https://doi.org/10.5281/zenodo.10927452
+
+This mirror redistributes the released training split. The .mha files are
+rewritten with lossless zlib compression; voxel data, dtype, spacing, origin and
+direction are bit-identical to the Zenodo originals (verified on all 200 files).
+Attribution to the original authors is required by the license.