Topic
ChainlinkIntermediateA blockchain oracle brings outside data such as prices onto a chain so smart contracts can use it. Learn how push and pull feeds, Chainlink, Pyth and TWAPs work, how the Mango Markets attack exploited a thin market, and how protocols defend against bad prices.
#defi#oracles#security
GeneralIntermediateDeFi lending pools set interest rates from utilization and require more collateral than the loan. A liquidation is triggered when the health factor falls below 1. This guide explains LTV, liquidation thresholds and bad debt with a worked example and real incidents.
#defi#oracles#stablecoins
PolygonBeginnerEach outcome share pays $1 in USDC if right and $0 if wrong, so its price reads as a probability. Polymarket mints shares in collateralized YES/NO pairs, matches orders off-chain, settles on Polygon, and resolves via UMA's oracle.
#markets#oracles#smart-contracts
