Multiple highly authoritative and relevant sources, including the Wall Street Journal and Bitcoin Magazine, independently report that American Bitcoin Corp recorded a $59 million net loss in the fourth quarter. The Wall Street Journal reports, both entries from its live coverage, explicitly state the $59 million figure and attribute it directly to the company's Q4 financial results. Bitcoin Magazine corroborates this with consistent details, citing broader market context but the same figure and loss period. The other sources listed are either unrelated to American Bitcoin Corp or pertain to other companies, thus adding no contradictory evidence. Given the high authority of the WSJ, confirmed by an additional credible industry outlet, and absence of any evidence to the contrary, the statement that 'American Bitcoin Corp reported a $59 million loss in the fourth quarter' is almost certainly accurate.