Bitwise has launched a Solana staking exchange-traded product (ETP) in Europe, partnering with Marinade.The ETP, with the ticker BSOL, offers an annual percentage yield of 6.48%.Bitwise aims to differentiate its Solana ETP by providing superior staking returns compared to US-based exchange-traded funds.The launch comes as Bitwise also plans to pursue a Solana ETF in the US.