Design and development of computer software for online cryptocurrency and non-fungible token transactions and cryptographic trust infrastructure in the nature of blockchains, smart contracts, and decentralized cryptocurrency exchanges in the nature of automated market makers; Providing on-line nondownloadable software for online cryptocurrency and non-fungible token transactions using cryptographic trust infrastructures, namely, blockchains, smart contracts, and decentralized cryptocurrency exchanges in the nature of automated market makers; Providing on-line non-downloadable software for transactions in cryptocurrency, digital currency, virtual currency, blockchain enabled currency, non-fungible tokens and digital financial assets using blockchain, smart contracts, and decentralized technologies; Providing on-line nondownloadable software for buying, selling, sending, receiving, exchanging, and transacting cryptocurrency, digital currency, virtual currency, blockchain enabled currency, non-fungible tokens and digital financial assets