BTC is the largest crypto asset, yet over 99% sits idle, with barely 1% used in DeFi—mostly through wrapped BTC, which relies on custodians. Trustless Bitcoin vaults enable native BTC to power lending, stablecoins, and perpetual trading without bridges or custodians. BTC remains on its own blockchain, locked by cryptographic proofs. This innovation unlocks BTC’s potential as collateral in DeFi, creating a secure and decentralized BTCFi ecosystem for lending, stablecoin minting, perpetual DEX collateral, liquid staking, and other cross-chain uses.(Route 2 FI)