OpenPath Corpus Public only whole slide histopathology tile corpus used to pre train OpenPath , a ViT g/14 pathology foundation model. Tiles are re extracted at native ~40× (0.5 µm per pixel) , which is the data lever that lets OpenPath rank 1 on the contamination free AMC HCC ST benchmark among seven foundation models (see the code / model card). Contents 33,991 WebDataset shards ( .tar ), ~17 TB , ~834 M tiles , 224×224 at native 40×. Seven public sources (sharded into slots such as tcga s0…s5 ): Source Shards License Notes TCGA ( tcga s0…s5 ) 20,589 NIH / GDC open access tier attribution required (see below) GTEx ( gtex s0…s1 ) 4,965 GTEx Portal permissive (attribution only); CC BY 4.0 DICOM mirror available attribution required TCIA ( tcia s0…s1 ) 3,891 CC BY 3.0 / 4.0 (collection specific) pathology collections ACROBAT 3,318 CC BY 4.0 breast H&E + IHC CAMELYON16/17 784 CC0 (public domain) breast lymph node SurGen 426 CC BY 4.0 colorectal MIDOG (2021 / 2022 / ++) 18 CC BY 4.0 multi tumor Total 33,991 mixed public / redistributable commercial use permitted All sources are commercial use permitted (CC BY / CC0 / NIH open). This corpus does not include any non commercial (NC) data…
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