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You are missing the point. Bitcoin and Bitcoin Cash use the same hash algorithm. Bitcoin Cash has about 15% of the total available SHA256 hashpower, and Bitcoin
by nicky0 8y ago
You are missing the point. Bitcoin and Bitcoin Cash use the same hash algorithm. Bitcoin Cash has about 15% of the total available SHA256 hashpower, and Bitcoin the other 85%. So it only take's a fraction of Bitcoin's miners to turn against Bitcoin Cash to attack it.
- stale2002 8y agoYes, and the Bitcoin network ITSELF can be attacked with a faction of the total hashpower on the Bitcoin network. Specifically, the fraction is 51/100, or 51 percent of the network. This is for the main Bitcoin network. The fraction for Bitcoin cash would be around 15%, or 15/100, expressed as a fraction. The Bitcoin cash network would require a smaller fraction, yes. But this still isn't a huge concern. If it is 3 times easier to attack bitcoin cash, that is still extremely difficult. Fractional hashpower attacks, (51% attacks) are all explained quite clearly in the white paper.