巨鲸开出900万美元以太坊杠杆多头仓位，并向Hyperliquid存入510万美元

The assessment is 'likely_true' with high confidence due to strong, direct, and corroborating evidence. The most critical piece of evidence is a primary source from the cryptocurrency exchange Bitget, which directly reports that a specific whale trader ('pension-usdt.eth') incurred a $6.54 million floating loss on a leveraged long position. This directly confirms the core elements of the statement: the trader type (leveraged), the specific loss amount, and the context of a market downturn.This direct evidence is strongly supported by multiple other high-authority sources. An article from OANDA explicitly confirms the market event, stating that Bitcoin's price plummeted below the $88,000 threshold. Furthermore, a highly relevant report from CoinDesk confirms that a price drop to a nearly identical level ($89,000) triggered a massive, $1 billion liquidation event specifically for bullish (long) traders. This corroborates the market conditions under which such a significant loss for a single leveraged trader would be highly plausible.While some sources discuss different market events or are irrelevant, none of the provided sources directly contradict the claim. The evidence is consistent and builds a compelling case that the statement is an accurate description of a real event.