According to The Block, federally chartered digital asset bank Anchorage Digital has been appointed as the exclusive custodian and equity partner for the newly launched REX-Osprey Solana + Staking ETF. Unlike the recent spot Bitcoin and Ethereum ETFs registered under the 1933 Act, the new REX-Osprey ETF is governed by the more stringent Investment Company Act of 1940. This distinction means that a qualified custodian must hold the assets, and Anchorage Digital is currently the only federally regulated bank authorized to both custody and stake digital assets. The ETF offers direct exposure to $SOL and returns staking收益 to investors. [ChainCatcher]