The assessment is based on the convergence of multiple high-authority and high-relevance sources that are expected to contain definitive information about MicroStrategy's corporate actions. The most credible evidence would come from the company's official website listing its Bitcoin purchases and its official SEC filings, both of which are identified as primary sources. The stock news aggregator is extremely relevant as it points directly to these SEC filings, which are legally required for material events like a $90 million purchase. Reputable secondary and tertiary sources, such as Bitcoin Magazine and Wikipedia, are also noted as being highly relevant because they would report on and cite these primary documents.Conversely, the sources that do not support the statement are either entirely irrelevant or mention the figure '$90 million' in completely unrelated contexts (e.g., Pakistani agriculture, a different company's token distribution, another firm's acquisition). These sources are considered noise and do not contradict the claim; they are simply not pertinent. Given the existence of authoritative primary sources where this specific information would be officially documented, and the absence of any contradictory evidence, the statement is very likely to be true.