Guides
What is Chainlink? How DeFi gets its prices, plus CCIP and LINK staking
Smart contracts cannot see the outside world, so lending apps rely on oracles like Chainlink to tell them what ether is worth. Chainlink also moves tokens between chains through CCIP, and LINK pays and backs the node operators who do the work.
Infrastructure
Optimism rewired fault proofs on 4 chains to prepare for interop. Just 0.13% voted no
Upgrade 20 moved OP Mainnet, Ink, Soneium and Unichain to a new dispute game format on September 24, 2026. Interop is still switched off, but the proof system it needs is now in place. Users had nothing to do; some developers and operators did.