42 Providing internet-based services in the nature of non-downloadable software that enables data communication by means of inter-blockchain and cross-blockchain technology; providing internet-based services in the nature of non-downloadable software that enables the transfer of data from one blockchain or distributed ledger to another; providing internet-based services in the nature of non-downloadable software that enables inter-blockchain and cross-blockchain transfer of data representing virtual currencies, virtual assets, digital currencies, digital assets, cryptocurrencies and crypto-assets; Providing internet-based services in the nature of non-downloadable software that enables the transfer of data representing virtual currencies, virtual assets, digital currencies, digital assets, cryptocurrencies and crypto-assets from one blockchain or distributed ledger to another; providing on-line non-downloadable computer software for use as a cryptocurrency and digital asset wallet; providing on-line non-downloadable computer software for use as a cryptocurrency and digital asset wallet that enables sending, receiving and transferring crypto-assets, reading quick response codes, making purchases, managing contact information of other cryptocurrency and digital asset wallet users, transferring crypto-assets between blockchains and transferring crypto-assets between accounts; providing on-line non-downloadable computer software for enabling transactions in a blockchain-based, distributed computing environment including private key management, signing of transactions, staking of tokens of value, creating non-fungible tokens, creating smart contracts, creating sub-nets, accessing other cryptocurrency wallets, accessing digital asset custody, transfer and settlement platforms controlled by others and for communicating with other cryptocurrency and digital asset wallet users; providing on-line non-downloadable web browser software for accessing and navigating blockchain-based networks; providing on-line non-downloadable software application for accessing and navigating distributed computing platforms; providing on-line non-downloadable software for interfacing between web browser software and blockchain-based distributed computing platforms; none of the foregoing including proof of work mining of digital currency, virtual currency or cryptocurrency, or any transfer, management, or storage of digital currency, virtual currency or cryptocurrency associated with said proof of work mining, or the proof of work verification of transactions associated with said proof of work mining