Tellor is an oracle system built for Ethereum, designed to provide smart contracts with secure off-chain data. It uses a network of staked miners who compete to submit requested data points, like asset prices, into an on-chain data bank.

The system is secured by its native token, Tributes, which is used to pay miners for data. This creates a decentralized and incentivized data feed, aiming to be a standard data source for dApps requiring reliable, real-world information.