TRC721 is the standard for TRON token development comparable and compatible with the ERC721 for Ethereum. TRC-721 is a collection of standard interfaces to create non-fungible tokens(NFT) on the TRON network. Non-fungible tokens (NFTs) are unique digital assets, collectibles, and artwork that represent real-world objects like art, music and memes that exists completely in the digital world. It includes a wide range of new applications such as PFPs and Avatars for the Metaverse, music-NFTs, for game-NFTs and more.