Chainlink is the largest provider of decentralized oracles in the crypto industry. The technology is particularly in demand in the field of decentralized finance. Oracles are also used by large companies that are not related to the blockchain. LINK is a native Chainlink token. It is used mainly to pay for the work of node operators, on the basis of which oracles work.

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Chainlink

Richard Gottleber

Merkle trees let you store unlimited data on-chain using a single hash. 

Code along with #Chainlink Labs' @RGottleber to learn how to store an allow list on-chain gas-efficiently using a Merkle tree and validate any piece of data in the entire tree 📺👇
https://t.co/lxLg2wAHXP https://t.co/qGBwi8OLWP