At the same time, marketplaces Collector Crypt and Phygitals have established similar businesses, and they issue their respective NFTs on Solana . Another project called RIP.FUN is in closed beta on the Ethereum scaling network Base . The NFTs issued by these firms are permissionless, so anyone can build an application that supports them on-chain.Courtyard emerged as a marketplace for tokenized Pokémon cards, and other collectibles, on Ethereum scaling network Polygon in 2021. And its business has been grow ...