Each race in Dragon’s Race is a smart contract; there is no database involved because the participants’ characters are NFTs; users do not log in with a username and password but rather by providing their NFTs to the smart contract; and the smart contract manages the stages of the race and selects the winner(s) based on price queries from CEXs.
NFTs created on Dragon’s Race can be traded on an NFT exchange like Opensea, Rarible, etc. because the entire platform is decentralized.
There is a decentralized application (Dapp) that can be used with the Dragon’s Race contracts over Web3 and Phantom.