Tellor is an oracle network founded in 2019. It utilises the proof-of-work (PoW) protocol to feed real-world data to blockchain-based smart contracts in a trustless and secure manner. Developers who want to feed data to smart contracts incentivise the PoW miners to perform the update.
The miners then compete with each other to solve the PoW puzzle to add the requested real-world information to the smart contracts. In this process, the developers use Tellor Tributes (TRB) as a means to incentivise the miners to perform their tasks. TRB is also a governance token of Tellor, meaning, TRB holders can vote on proposed updates to the network. Upon listing in late 2019, TRB was worth $1.28.