Correction: Harvard, Levi Strauss, U.S. think tank in blockchain tie-up on worker welfare

NEW YORK (Reuters) - (Corrects first paragraph to read "augment" instead of "replace") Harvard University's public health graduate school, U.S. think-tank New America, and American apparel company Levi Strauss & Co [LEVST.UL] announced on Thursday a collaboration to develop a blockhain-based system designed to augment outside auditors of factory health and safety with self-reporting by workers.

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