Providing online non-downloadable software, namely, non-downloadable blockchain software for administering decentralized computer blockchain applications; providing online non-downloadable blockchain software for administering decentralized computer blockchain applications for use in distributed computing environments; blockchain platform as a service (PAAS), blockchain as a service (BAAS) and software as a service (SAAS) featuring blockchain software for developing, building and operating distributed blockchain applications; providing temporary use of non-downloadable computer software that allows users to send, receive, store and safeguard digital currency; providing a secure, web-based computer service featuring technology that enables users to remotely access, send, receive, store and manage digital currency; authentication and certification of data relating to cryptocurrency and nonfungible tokens (NFTs) via blockchain; design of computer software for the utilization of blockchain technology; design of computer software to facilitate the transactions and microtransactions of cryptocurrency and nonfungible tokens (NFTs); design and provision of online platform to facilitate the transactions and microtransactions of cryptocurrency and nonfungible tokens (NFTs)