Bifrost (BNC) is a Polkadot-based parachain designed to provide liquidity and staking without nominating delays. A decentralized finance (DeFi) project in the Polkadot ecosystem, Bifrost allows users to deposit their staking tokens and mint vTokens (Staking Derivatives Voucher Token) to obtain staking liquidity, as well as receive staking rewards when a token is locked by a smart contract. With Bifrost, you can convert a proof-of-stake (PoS) token into a vToken; for example, DOT can be converted into vDOT. Bifrost is a web3 derivatives protocol that provides decentralized cross-chain liquidity for staked assets. By leveraging on the cross-consensus message (XCM) it can provide cross-chain liquid staking services for multiple chains.Bifrost’s mission is to provide standardized cross-chain interest-bearing derivatives for Polkadot relay chains, parachains, and heterogeneous chains bridged with Polkadot. Furthermore, by aggregating over 80% of PoS consensus chains’ staking liquidity through cross-chain derivatives, our protocol lowers users' staking threshold, increases multi-chain staking ratio, and improves the ecosystems application interest base, by creating a three-way positive cycle for the StakeFi ecosystem by empowering users, multi-chains, and ecosystem applications.