It would improve the security of nodes if they automatically tracked BCH and other SHA256d PoW systems (not necessarily blockchains).

Then the node could have a true sense of the full global mining hashrate (which could be switched to an attack on Bitcoin at any time, even if not currently mining Bitcoin), and adjust its security predictions appropriately.

@lukedashjr difficulty is part of consensus. I can’t see any way to reach consensus on total available hash power.

@lukedashjr @jasonkeyes my first thought was difficulty too, how would this work?


@gchaincl @jasonkeyes If there was evidence there might be an attack underway, you would trust confirmations less until the situation resolved.

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