Add 3 verified HPC batches

data/train/p12/oproofs-s00000-r00013416-n000004-0000-3e0210fb4427ec71.parquet

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+size 719114

data/train/p7d/oproofs-s00000-r00013448-n000004-0000-b683b9172ab8dcf5.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:b683b9172ab8dcf5ea98b68b1ef65497ceed18e32dc7654e24e0108570213c4b
+size 332592

data/train/p8b/oproofs-s00000-r00013296-n000004-0000-4aa5bbd2d1eeb8ce.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:4aa5bbd2d1eeb8ce9d1554e6787b9a22b9a5515366953ca863b72bcf682f6c52
+size 342452