The operational token of the Theta protocol. TFUEL powers on-chain operations like payments to relayers for sharing a video stream, or for deploying or interacting with smart contracts. Relayers earn TFUEL for every video stream they relay to other users on the network. You can think of Theta Fuel as the 'gas' of the protocol. At Mainnet launch on March 15th, TFUEL will be created as a native token on the Theta blockchain.
BitTorrent was initially conceived by Bram Cohen, a peer-to-peer protocol for users to transfer files around the world. The BitTorrent Token (BTT), a TRC-10 token is created on top of the TRON blockchain platform as a way to extend the capability of BitTorrent. The token is added to introduce some economics feature on BitTorrent for networking, bandwidth, and storage resources to be shared and tradeed. Some of the other feature that BitTorrent Token (BTT) offers would be BitTorrent Speed. This is whereby BTT tokens can be big in exchange for faster download speed. List of exchanges trading BTT token can be found at https://www.coingecko.com/en/coins/bittorrent/trading_exchanges