[bitcoin-dev] BIP proposal: Inhibiting a covert attack on the Bitcoin POW function

Alex Mizrahi alex.mizrahi at gmail.com
Fri Apr 7 07:44:59 UTC 2017

> Can you please not forget to supply us more details on the claims made
> regarding the reverse engineering of the Asic chip?
> It is absolutely crucial that we get these independently verified ASAP.

Bitmain confirmed that their chips support ASICBOOST and it can be used for


They claim that they don't use it on mainnet, but that claim cannot be
verified. it is possible to do covert ASICBOOST in a 100% covert manner.
(It can be done without "transaction reordering" so it's not worth
analyzing blocks etc.)
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