The assessment is based on a strong consensus across multiple credible sources. Several outlets, including Yahoo Finance and MEXC, directly and explicitly state that Arthur Hayes sold a significant amount of Ethereum, citing on-chain data from the authoritative analytics firm Arkham. This direct evidence is strongly corroborated by multiple other sources (Binance, Cryptorank) that report the on-chain movement of millions of dollars worth of ETH from Hayes's wallet to the Binance exchange. Transferring assets to a centralized exchange is a necessary and standard precursor to selling them on the open market, making it a very strong indicator of intent to sell. One source also provides a logical motive, reporting that Hayes was purchasing other crypto assets, which aligns with the narrative of a portfolio shift. There is no conflicting evidence among the provided sources; all relevant reports either directly state a sale occurred or describe actions that are quintessential steps in the process of selling. The convergence of direct reporting and strong circumstantial evidence from a variety of credible sources makes the statement highly likely to be true.