The statement is strongly supported by a significant majority of the provided high-authority sources. Multiple independent and credible financial news outlets, including The Block, CryptoSlate, and Cointelegraph, explicitly report the exact figure of a $708.7 million net outflow for spot Bitcoin ETFs on the day in question. Crucially, several of these reports trace the data back to primary aggregators like SoSoValue and Farside Investors, which are considered authoritative sources for ETF flow data. One source is described as a direct data table from Farside Investors, providing direct primary source validation. The consensus is further reinforced by reports from an on-chain analytics platform and a post on Binance's content platform, all citing the same number. The few sources that do not support the statement are either irrelevant—discussing different assets (Solana, Ether), different time periods, or weekly summaries—or present a different figure without sufficient context, rendering them insignificant against the weight of the corroborating evidence. There are no direct, credible contradictions to the specific claim.