"PopulárEx or Popularity Exchange is the first Web3 betting-based system for expressing public sentiment and creating ratings of any objects, concepts, events and phenomena. The exchange is a platform where users create tokens of popularity (ToP) in the POPXChain blockchain. They are operated on a special Shared NFT (SNFT) standard and are non-interchangeable tokens with shared-ownership. For each SNFT token in the blockchain its Shares are issued. Shareholders of SNFT in PopularEx are called Sponsors of Popularity because these users contribute to the value growth of ToPs. Essentially, ToPs are synthetic DeFi assets. Their purpose is to predict the popularity of the objects associated with those tokens. In PopulárEx, the information about each new unique Object of Popularity is embeded into a special IDNFT token, which confirms the uniqueness of the Object. Each ToP is unique, because it can be linked only to one Object's IDNFT, which previously has never been registered in the blo