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Would the protocol migrate to another Hash Algorithm inmediatly? What would be the next? SHA3 or BLAKE 2?

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No hash function has ever been broken in a way that would be meaningfully have an impact to Bitcoin. It’s not even a consideration, other than for OP_SHA1 which has no non-academic usage in Bitcoin.

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  • Some cryptographers thinks that is matter of time to find a collision a in SHA256. I know won't be soon, but what will happen when that collision be found? a Hard Fork? – mengeroshi Jun 22 '20 at 21:33
  • Nowhere in Bitcoin would a SHA256 collision actually matter. – Anonymous Jun 22 '20 at 21:36

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