Aggregate 核验溯源 Body 来源：https://www.theblock.co/news/markets/2026-08-27-blackrocks-mitchnick-says-bitcoins-risk-off-narrative-is-the-one-to-bet-on-long-term-as-rally-consolidates-near-80000-412897 Domain Tag fintech Source Name The Block Source URL https://www.theblock.co/news/markets/2026-08-27-blackrocks-mitchnick-says-bitco…