>It's trivial to distinguish between the two.... One goes by the name Bitcoin or Bitcoin Classic, and the other by the name Bitcoin Cash. My comment about dist

>It's trivial to distinguish between the two.... One goes by the name Bitcoin or Bitcoin Classic, and the other by the name Bitcoin Cash. My comment about distinguishing was not about Bitcoin Cash, but about the following counterfactual: >What if the SegWit2x fork had happened, and each of the two resulting cryptocurrencies had roughly equal market cap and each claimed to be the "true" Bitcoin? In this hypothetical situation, there is (by assumption) real disagreement about which of the two cryptocurrencies is the "real" Bitcoin, and I don't see how the IRS would be equipped to decide this contentious issue. And if it doesn't make such a decision, then the only remaining possibility is to treat the two chains equally.