- Each project must use Chainlink CCIP in some form to make a state change on a blockchain, otherwise it will not be eligible for the Chainlink core prizes. This means that a front end simply reading from Chainlink Data Feeds doesn't count. Using Chainlink CCIP inside your smart contracts is required, though you are encouraged to utilize Chainlink Data Feeds, Chainlink Data Streams, Chainlink VRF, and Chainlink Proof of Reserve as well.