Answers are grounded in this paper and cite their sources.
Smart contracts are programs that execute autonomously on blockchains. Their key envisioned uses (e.g. financial instruments) require them to consume data from outside the blockchain (e.g. stock quotes). Trustworthy data feeds that support a broad range of data requests will thus be critical to smart contract ecosystems.
No takes yet. Share an insight, caveat, or question.
Zhang et al. (2016) studied this question.