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Combining a modified Bitcoin Core infrastructure with an intercompatible version of the Ethereum Virtual Machine (EVM), Qtum merges the reliability of Bitcoins unfailing blockchain with the endless possibilities provided by smart contracts. Designed with stability, modularity and interoperability in mind, Qtum is the foremost toolkit for building trusted decentralized applications, suited for real-world, business oriented use cases. Its hybrid nature, in combination with a first-of-its-kind PoS consensus protocol, allow Qtum applications to be compatible with major blockchain ecosystems, while providing native support for mobile devices and IoT appliances. The the Qtum smart-contract framework that aims for sociotechnical application suitability, the adoption of formalsemantics language expressiveness, and the provision of smart-contract template libraries for rapid best-practice industry deployment. We discuss the Qtum utility advantages compared to the Ethereum alternative and present Qtum smart-contract future development plans for industrycases applications. The Qtum Blockchain (Qtum) is committed to develop an open source ecosystem for the blockchain community different from that of Bitcoin and Ethereum. It utilizes a Value Transfer Protocol (VTP) to achieve the transferring of value from peer to peer and to build up a decentralized application platform, which brings blockchain technology into the financial services, Internet of Things (IoT), supply chain management, social media, gaming and other industries. Innovative technology, comprehensive governance structure and board applications give Qtum advantages over Bitcoin and Ethereum as a public blockchain.