Deep Dive
1. Purpose and technology
Blockchains cannot directly retrieve information from outside their own networks. Chainlink addresses this with oracles: services that bring external data to smart contracts. Independent node operators can gather and check information before delivering it onchain, helping reduce reliance on one data provider.
Beyond data feeds, Chainlink’s Cross-Chain Interoperability Protocol (CCIP) supports sending messages and tokens between blockchains. Together, these services can support applications such as DeFi lending, where contracts need price data, and cross-chain transfers. Chainlink’s overview
2. LINK token
LINK is used to pay for Chainlink services and reward node operators. It can also be staked, meaning locked up to help support network security; some services may impose penalties when operators fail to meet requirements. Users may also pay for certain services in other assets, which can be converted into LINK. Chainlink’s overview
Conclusion
Chainlink is blockchain connectivity infrastructure, while LINK is the token used within parts of its service and security model. How well can its tools help smart contracts work across data sources and blockchains?
