Potential use cases in Blockchain, the proof of existence, identity management, record keeping, UPROOV: Mobile Trust Machine, online music problem solution, car leasing and sales, DocuSign, Forecasting, Augur, log operational maintenance data, cloud storage, STORJ: decentralized cloud storage, Retail: OpenBazaar, Ascribe: for securing your work, ride sharing, and supply chain management, Blockchain and IoT, autonomous decentralized peer-to-peer telemetry, IOTA, Freight Transportation, IBM Watson IoT, ADEPT, banking industry projects: payments, trading platform, KYC, loan management process, capital market system, and fraud reduction, government: online voting, real estate, capital markets, and devising public policies, Estonia: identity management and e-voting, Georgia: Blockchain land registry, Delaware, USA: Smart Contracts and making public policies, and Dubai: Digital passports.