$TRB is a decentralized oracle protocol running on the Ethereum network. Oracles are systems that bring off-chain data to blockchain networks, and this data is critical to the functioning of smart contracts. Tellor's goal is to make smart contracts work more reliably by bringing trusted and verified data to the blockchain.

$TRB token is used for many purposes within the network;

The most important use case is that miners stake TRB tokens to provide data and are rewarded when they provide accurate data. This process increases the reliability of the system by penalizing miners who provide incorrect data.

In conclusion, TRB is an ERC-20 token that plays a critical role for the decentralized oracle system. It ensures that trustworthy data is brought to blockchain networks by incentivizing both miners and data validators.