Which cryptocurrency emerged from Bitcoin's hard fork on 1 August 2017?

Detailed explanation

On August 1, 2017, participants in the Bitcoin network split over incompatible rule choices. The new chain became known as Bitcoin Cash. Up to the split point, both networks shared the same earlier blockchain history; after that, they produced new blocks independently.

A central difference concerned the permitted block size and the scaling path being pursued. Because the post-split rules were not fully compatible, nodes enforcing only one rule set could reject certain blocks from the other chain.

This card asks about that specific historical hard fork. More generally, a hard fork is a rule change that can be incompatible with earlier validity rules; whether two networks persist depends on whether both rule sets continue to be used. In the August 1, 2017 case, Bitcoin Cash continued as a separate network.