The statement is directly confirmed by primary source evidence from Square's own website (Sources 1 and 3), which includes a press release and a product page explicitly stating that U.S. businesses can now accept Bitcoin payments. This is strongly corroborated by a reputable secondary source, Yahoo Finance (Source 2). The consistent information across multiple, high-credibility sources provides maximum confidence. The single contradictory source (Source 7) with a future date appears to be an error and is outweighed by the definitive evidence.