The assessment is based on direct, consistent, and highly authoritative evidence. The most crucial source is the official OKX spot trading page for the BTC/USDT pair. This primary source explicitly shows a '24h high' of 93,079.0 USDT and a 'Mark price' of 91,511.5 USDT, both of which are clearly above the 91,000 USDT threshold mentioned in the statement. This evidence is corroborated by a highly relevant news report from Binance Square, another authoritative source, which directly states that Bitcoin surpassed 91,000 USDT and specifically mentions a related liquidation event on the OKX exchange. The remaining sources are either irrelevant to the specific price claim or provide only weak contextual information, and none of them contradict the statement. The presence of direct, verifiable data from the exchange itself, supported by a reputable secondary source, provides high confidence in the truthfulness of the statement.