Quotes About Off-chain

They can even be used to provide on-chain exposure to the returns of an off-chain asset if the target asset is not native to the underlying blockchain (e.g., gold, stocks, exchange-traded funds [ETFs]).

In the context of smart contract platforms, an oracle is any data source for reporting information external to the blockchain. How can we create an oracle that can authoritatively speak about off-chain information in a trust-minimized way? Many applications require an oracle, and the implementations exhibit varying degrees of centralization.