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Chainlink is an Oracle protocol that can be used for trading binary options and is capable of price updates every 400ms with Solana's architecture, with developers using ChainLink to build DeFi assets and marketplaces.
Chainlink is a decentralized oracle network that currently provides decentralization at both the oracle and data source level. By using multiple independent Chainlink nodes, the user can defend against one oracle being a single point of failure. Similarly, using multiple data sources for sourcing market prices, the user can defend against one data source being a single source of truth.