The assessment is primarily based on one highly relevant and authoritative source that directly supports the statement. The article from The Block, a specialized crypto-news outlet, explicitly reports that Bitcoin mining stocks, including named examples like Cipher and IREN, experienced an after-hours boost directly as a result of Nvidia's strong Q3 earnings and Q4 outlook. This provides direct, unambiguous evidence. Another source from Yahoo Finance corroborates the premise of the statement by confirming that Nvidia's Q3 results did indeed beat expectations. While several other sources were provided, they are largely irrelevant as they were published before Nvidia's announcement or fail to connect Nvidia's earnings with Bitcoin mining stocks. Crucially, none of the provided sources contradict the claim. The presence of a strong, direct piece of evidence, combined with the absence of any conflicting information, makes the statement highly likely to be true.