Five Chainlink Products. One Architecture. The DON+OCR Pattern Underneath Everything.

Chainlink products are built on a common two-layer architecture: Decentralized Oracle Network (DON) and Offchain Reporting protocol (OCR). This DON+OCR pattern consists of three steps: independent observation, off-chain consensus, and on-chain verification. Understanding this pattern can save months of reading time and simplify learning Chainlink products. To apply this knowledge, recognize the DON+OCR pattern across each Chainlink product.