1. Why Are They Needed?

Connect smart contracts with off-chain data and services

2. Modular Work Flow

Oracles connect smart contracts with off-chain data and services

3. Chainlink Solutions

Chainlink is the most popular oracle networks in DeFi

4. Build Hybrid Contract

Combine code (on-chain) with data and computation (off-chain)

5. Oracle Manipulation

A malicious oracle can lead to disaster

6. Conclusion

Explore the future of the oracle

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