SAAS for managing and validating confidential cryptocurrency transactions using block chain-based smart contracts; Providing on-line non-downloadable computer application software for blockchain-based platforms, namely, software for using a computation and consensus engine incorporating blockchain technology for securely processing data; A feature of on-line non-downloadable computer application software for blockchain-based platforms, namely, software for using a computation and consensus engine incorporating blockchain technology for securely processing data in a confidential environment; A feature of SAAS for automatically encrypting business processes and financial transactions using block-chain based smart contracts; Providing on-line non-downloadable computer application software (and/or SAAS) for creating and operating decentralized applications that rely on cryptographic methods for securing and processing communication, storage, and confidential computation services; Providing on-line non-downloadable computer application software (and/or SAAS) for development, testing, and integration of blockchain software applications to shared and/or distributed ledgers