42 Providing temporary use of on-line non-downloadable computer software for performing digital asset management; cloud computing featuring software for connecting, operating and managing networked electronic payment terminals, computers for entertainment purposes, and smartphones via wireless and wired networks; cloud computing featuring software for connecting, operating and managing networked electronic payment terminals, computers for entertainment purposes, and smartphones in the internet of things; cloud computing featuring software for managing machine-to-machine applications and machine-to-machine networks; providing temporary use of non-downloadable cloud-based software for connecting, operating, and managing networked electronic payment terminals, computers for entertainment purposes, and smartphones in the internet of things (IoT); design, development and implementation of software for distributed ledger computing platforms; design, development and implementation of software in the field of blockchain technology; platform as a service (PAAS) featuring computer software platforms using blockchain technology for managing and validating cryptocurrency transactions using blockchain based smart contracts; software as a service (SAAS) services featuring software using blockchain technology for managing and validating cryptocurrency transactions using blockchain-based smart contracts; providing temporary use of on-line non-downloadable software for implementation of distributed ledger technology; providing temporary use of on-line non-downloadable software for blockchain development and implementation, execution and management of secure data transactions, management of data escrow, and provisioning of shared and distributed ledgers; software as a service (SAAS) services featuring software for accessing smart documents, distributed ledgers and blockchain technologies; software as a service (SAAS) services featuring software for facilitating the use of a blockchain or distributed ledger to record and track transactions; authentication of data in the field of digital collectibles, art, virtual goods, crypto-assets, crypto-collectibles, non-fungible tokens (NFTs), crypto-currency, and smart contracts using blockchain technology; authentication in the field of digital collectibles, art, virtual goods, crypto-assets, crypto-collectibles, non-fungible tokens (NFTs), crypto-currency, and smart contracts using blockchain technology; providing user authentication services using blockchain-based software technology for cryptocurrency transactions; platform as a service (PAAS) featuring computer software platforms for providing access to crypto-collectibles and application tokens; providing a website featuring technology that enables users to mine, earn, purchase, receive by any other means, store, and transfer blockchain-based tokens, coins, cryptocurrencies, and other crypto assets; providing an online non-downloadable internet-based system application featuring technology enabling users to mine, earn, purchase, receive by any other means, store, and transfer blockchain-based tokens, coins, cryptocurrencies, and other crypto assets; providing a secure electronic online system featuring technology which allows users to create, issue, share, sell, transfer, and store blockchain-based tokens, coins, cryptocurrencies, and other crypto assets and crypto-collectibles; providing temporary use of online non-downloadable software for electronically trading, storing, sending, receiving, accepting and transmitting virtual currency, and managing virtual currency payment and exchange transactions