Blockchain Collateral

Definition ∞ Blockchain collateral refers to digital assets or cryptocurrencies locked within a smart contract or protocol to secure a loan or financial obligation. This locked asset serves as a guarantee against default, ensuring that the lender can recover funds if the borrower fails to meet the terms of the agreement. The value and type of collateral are crucial factors in decentralized finance operations.
Context ∞ The role of blockchain collateral is a persistent topic in decentralized finance (DeFi) news, particularly concerning over-collateralization ratios and liquidation mechanisms. Fluctuations in collateral asset prices can trigger automated liquidations, impacting market stability and user positions. Debates often center on the regulatory treatment of such collateral and the systemic risks posed by concentrated holdings of specific digital assets used as collateral across various DeFi protocols.