To enable Aave V4 to track collateral on Ethereum, the integration creates a transfer-restricted ERC-20 token named vaultBTC as an internal accounting record representing locked Bitcoin on a one-to-one basis.

The first and largest cryptocurrency, spanning its price and adoption, mining, protocol politics, and its contested role as digital money and inflation hedge.

Financial services rebuilt as onchain protocols, offering lending, trading, derivatives and yield without traditional intermediaries.