Bedrock is a multi-asset liquid restaking protocol that supports staking of assets such as BTC, ETH, and IOTX, issuing corresponding liquid tokens (e.g., uniBTC, uniETH, uniIOTX, and brBTC). Users deposit native assets and receive tradable derivative tokens, which can be further used in DeFi lending, liquidity provision, or cross-chain transactions, while the underlying assets continuously generate staking rewards. The protocol employs a Proof of Staked Liquidity (PoSL) mechanism to dynamically allocate rewards and introduces a BR/veBR dual-token governance model, where veBR holders can participate in protocol parameter voting and incentive allocation. Its brBTC product focuses on Bitcoin restaking, aiming to unify cross-chain BTC yield scenarios.