Aggregate 核验溯源 Body 来源：https://www.theblock.co/news/business/2026-08-27-charles-schwab-add-solana-avalanche-chainlink-to-crypto-trading-platform-412923 Domain Tag fintech Source Name The Block Source URL https://www.theblock.co/news/business/2026-08-27-charles-schwab-add-solana-aval…