[Liquid Staking Startup RockSolid Completes $2.8 Million Pre-Seed Funding Round] According to Golden Finance, liquid staking startup RockSolid has completed a $2.8 million Pre-Seed funding round, led by Castle Island Ventures, with participation from Blockchain Builders Fund, GSR, Kindred Ventures, Rocket Pool, and the Stanford Blockchain Accelerator. RockSolid's Rocket Pool allows users holding 32 ETH to participate in Ethereum's proof-of-stake security mechanism. The protocol issues liquid staking tokens, rETH, enabling holders to maintain liquidity while earning staking rewards.