Eroteme is using the Ethereum Protocol to mint Tokens which are then stored on the InterPlanetary File System (IPFS), which will be immediately tradable no need for any authorisation Just a Metamash account with ETH for gas fees. To the user it's as easy as just clicking and buy.
Note: Metadata stored on the IPFS such as the answer to the question is encrypted and on decrypted for the buyer on the Eroteme Platform
