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I've been caught up in the post-quantum cryptography scene for a little while now, and understand that the RSA or ECC cryptography inherent in a cryptocurrency network can be easily broken by a sufficiently large quantum computer. I, however, have a more specific question...

The hashcash proof of work algorithm that is used by modern cryptocurrencies, is it vulnerable to quantum attack?

marked as duplicate by Ugam Kamat, JBaczuk, Andrew Chow Jun 26 at 3:51

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