The evidence overwhelmingly and directly supports the truthfulness of the statement. The primary sources are posts from the personal X and LinkedIn accounts of Star Xu, the CEO of OKX, where he is explicitly quoted making this exact claim. This is the most direct evidence possible. This primary evidence is strongly corroborated by another high-level OKX executive, Lennix Lai, who repeated the statement. Furthermore, multiple independent and credible secondary sources, including a reputable financial news outlet (Yahoo Finance) and several crypto-focused media organizations (Crypto Briefing, Bitget News), all report consistently that the OKX CEO made this statement. There is no conflicting or contradictory evidence among the provided sources. The assessment is not on whether the marketing campaigns were the true cause, but on whether the CEO stated they were, and the evidence confirms he did without any ambiguity.