computer software for use in building, developing, executing, and running other software and applications on the blockchain; computer software development tools for the creation of blockchain applications; Computer software development tools for blockchain based platforms; application programming interface (API) software blockchain based platforms; providing temporary use of non-downloadable web-based decentralized applications (DApps) for blockchain contracts, cloud storage of data, and cryptocurrency trading; providing online non-downloadable software providing a blockchain protocol that enables scaling of decentralized applications (DApps); Design, development, and implementation of software for distributed computing platforms; design, development, and implementation of software for blockchain software; Computer applications and platforms to facilitate the use of blockchain or distributed ledgers to execute, read, and record financial transactions, information storage, and data collection in connection with a decentralized blockchain contracts platform; Platform as a service (PAAS), featuring computer software platforms for launching and scaling applications; Software as a service (SAAS) services featuring software for scaling, managing, and validating blockchain transactions; software enabling user authentication for commercial transactions