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🍋 oracles
tl;dr
- Oracles provide a trustless way of getting extrinsic (off-chain) information.
- They provide the some key functions such as collect data from an off-chain source, transfer the data on-chain with a signed message, and make the data available by putting it in a smart contract’s storage.
- price oracles are any tool showing an asset's price but in context of defi