Providing online non-downloadable software development tools for creating blockchain-based applications provided by a blockchain as a service (BAAS) provider; providing temporary use of non-downloadable web-based decentralized applications (DApps) for providing data availability services on a blockchain; providing temporary use of non-downloadable web-based decentralized applications (DApps) for staking of crypto assets; providing temporary use of non-downloadable web-based software for deplo...