ks46/usernames

usernames 149,142,110 unique login-style usernames (1,713 MB of bytes) collected from public sources, filtered to [A-Za-z0-9._-]{3,64} with case kept, deduplicated exactly, and split by xxh3_64(name) % 64 == 0 into 2,328,816 held-out and 146,813,294 training names. Files prep/names.parquet: every kept name with src (index of the source that first mentioned it, in the table order below), h (xxh3_64 of the name) and heldout; sorted by h. prep/train.bin… See the full description on the dataset page: https://huggingface.co/datasets/ks46/usernames.

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