1/ Some clarity on #Chainlink and @arbitrum

TL;DR At launch $ETH will be used at the protocol level for transaction fees and bond from validators, while $LINK will be used at the app level to pay for oracle services such as Price Feeds, verifiable randomness, & L2->L1 messages

— Zach Rynes | CLG (@ChainLinkGod) May 27, 2021