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Most published Xplore authors for Smart Contracts

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Xplore Articles related to Smart Contracts

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Enterprise Blockchain Overview

Enterprise Blockchain Overview, 05/22/2019

This course module introduces Blockchain for Enterprise with an emphasis on where and how Blockchain will impact corporations. Included is a short review of cryptocurrencies followed by an in-depth review on Blockchain's underlying technological advantages and where best to deploy in industry. A review of smart contracts is included along with the types of blockchain models: public, private and hybrid. ...


Application and Prospect of Integrated Energy Interoperability Management System Based on Blockchain

2019 IEEE International Conference on Energy Internet (ICEI), 2019

In order to effectively promote energy clean production and near consumption, improve the comprehensive energy utilization, economy and stability of the energy system in the whole region, in order to achieve energy conservation and environmental protection, this paper proposes a blockchain integrated energy system framework. Here, the two-way interaction problem between the user and the load aggregator's demand response is ...


Blockchain Based Aadhaar

2019 3rd International Conference on Computing and Communications Technologies (ICCCT), 2019

Blockchain Based Aadhaar uses Blockchain platform for securing Aadhaar information. The system stores the Aadhaar data in a group of computers interconnected to each other. The Blockchain uses a hashing function to transform the data and produces a hash code. The hash code ensures the identity of user is kept secure. The data is stored in blocks in the nodes. ...


Using Blockchain to Enhance and Optimize IoT-based Intelligent Traffic System

2019 International Conference on Platform Technology and Service (PlatCon), 2019

Smart city blueprint is constructed by increasing deployment of various Internet of Things devices. In this paper, we focus on data transmission and request for lane property right under the domain of an intelligent traffic system. IoT devices are usually deployed in a heterogeneous environment, with the natural gene of decentralization. Compared with cloud-based centralized architecture, in this paper, we ...


The Exchange Center: A Case Study of Hybrid Decentralized and Centralized Applications in Blockchain

2018 1st IEEE International Conference on Hot Information-Centric Networking (HotICN), 2018

Blockchain and smart contract provide a convenient vehicle to build decentralize applications. Among varies Decenrtalized applications (DAPPs), exchange is one of the most mentioned ones. To fully-decentralized an exchange looks somehow like an utopia. Most works tried to use different methods to solve different problems on this subject. According to our observations, the problems caused by blockchain include 1) Long ...


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Educational Resources on Smart Contracts

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IEEE-USA E-Books

  • Enterprise Blockchain Overview

    This course module introduces Blockchain for Enterprise with an emphasis on where and how Blockchain will impact corporations. Included is a short review of cryptocurrencies followed by an in-depth review on Blockchain's underlying technological advantages and where best to deploy in industry. A review of smart contracts is included along with the types of blockchain models: public, private and hybrid. The course also highlights the major cloud company offerings on Blockchain for the learner's own project exploration with a familiar service provider.

  • Application and Prospect of Integrated Energy Interoperability Management System Based on Blockchain

    In order to effectively promote energy clean production and near consumption, improve the comprehensive energy utilization, economy and stability of the energy system in the whole region, in order to achieve energy conservation and environmental protection, this paper proposes a blockchain integrated energy system framework. Here, the two-way interaction problem between the user and the load aggregator's demand response is introduced, which exists in the process of interoperability of the integrated energy management system. The application model of blockchain technology for integrated energy interaction is analyzed and discussed to solve the interoperability problem in integrated energy systems.

  • Blockchain Based Aadhaar

    Blockchain Based Aadhaar uses Blockchain platform for securing Aadhaar information. The system stores the Aadhaar data in a group of computers interconnected to each other. The Blockchain uses a hashing function to transform the data and produces a hash code. The hash code ensures the identity of user is kept secure. The data is stored in blocks in the nodes. The system also uses Ethereum Smart Contracts to ensure to only the authenticated data is accessed by the third parties. The Blockchain based Aadhaar uses distributed databases (decentralized databases) math and cryptography to record transactions, transactional data is secured and the data is stored in distributed small chunks and spreads across the entire network of computers, and so it is difficult to hack these systems than hacking the centralized or traditional servers.

  • Using Blockchain to Enhance and Optimize IoT-based Intelligent Traffic System

    Smart city blueprint is constructed by increasing deployment of various Internet of Things devices. In this paper, we focus on data transmission and request for lane property right under the domain of an intelligent traffic system. IoT devices are usually deployed in a heterogeneous environment, with the natural gene of decentralization. Compared with cloud-based centralized architecture, in this paper, we introduce blockchain as a decentralized technology to let vehicles jointly collaborate without having to go through a central computing node authority. Data transmission between vehicles uses a peer-to-peer network in which every node communicates directly with every other node, verified by their relevant end-point nodes; lane's acquisition right is approved by all relevant vehicle nodes, as well as with consensus agreed upon via smart contract.

  • The Exchange Center: A Case Study of Hybrid Decentralized and Centralized Applications in Blockchain

    Blockchain and smart contract provide a convenient vehicle to build decentralize applications. Among varies Decenrtalized applications (DAPPs), exchange is one of the most mentioned ones. To fully-decentralized an exchange looks somehow like an utopia. Most works tried to use different methods to solve different problems on this subject. According to our observations, the problems caused by blockchain include 1) Long confirmation time, 2) Vulnerable to front running attack, 3) wasting on-chain resource, all these problems make a blockchain based exchange not user friendly. To deal with the above- mentioned problems, a hybrid centralized and decentralized exchange is presented in this work. By simulating the transaction execution processes and eliminating all the unwanted uncertainties, we are confident that the transactions in the proposed exchange center (EC) will be confirmed and executed well on the blockchain, that is, our system allows users to conclude their trades without need of waiting for a long blockchain confirmation time. In conclusion, a Hybrid Centralized and Decentralized Application (HCDAPP) provides a better-quality service, just like a centralized server; at the same time, it also provides a higher-level security, like a decentralized smart contract.

  • Managing QoS of Internet-of-Things Services Using Blockchain

    Owing to the exponential growth of Internet of Things (IoTs), ensure that the Quality of Service (QoS) over IoT becomes challenges at the network edge or on cloud. The traditional mechanisms for QoS measurements rely on the centralized trusted third parties who use specialized agents to collect data and measure the performances of services. However, these mechanisms are ineffective to deal with highly dynamic and distributed nature of IoT-based services. Moreover, the dynamism of QoS needs to collect, update, and access reliable quality relevant data frequently, while lacking trust becomes a major hurdle for data utilization. It is our argument that the QoS measurement of IoT-based services would be decentralized and the trusts be built from collectively trusted subnetworks. In this paper, we propose to integrate the blockchain technologies (BCT) with a multi-agent approach to warrantee the trustiness of real-time data for the measurement of QoS in the IoT environment. The proposed approach is verified by some demonstrative examples in addressing QoS specification patterns commonly found in service-based applications (SBAs), where qualitative analyses are conducted for the evaluation of the patterns.

  • Smart Contracts for Incentivizing Sensor Based Mobile Smart City Applications

    “One of the issues that arise when developing a crowdsourcing monitoring application is the fact that we rely on the measurements taken by the users, but, how to engage users to use this application and provide observations?” 1 .

  • Preface: Blockchain: From Technology to Solutions

    None

  • Application of Blockchain in Collaborative Internet-of-Things Services

    Innovating business processes involves cutting-edge technologies where the Internet of Things (IoT) and Blockchain are technological breakthroughs. IoT is envisioned as a global network infrastructure consisting of numerous connected devices over the Internet. Many attempts have been made to improve and adapt business workflows for best utilizing IoT services. One possible solution is to digitize and automate internal processes using IoT services, in which Blockchain smart contract is a viable solution to establish the trust of process executions without intermediaries. Modern business processes are composed of disparate services; many of them tend to be delivered based on IoT. Interoperating with such services poses major challenges: 1) time for finality settlement of transactions is unpredictable and usually experiencing delay; 2) several implementations of permissioned Blockchain pose a major concern of trust regarding nodes that perform consensus; and 3) trust of process executions and IoT information is the major factor to the success of modern business processes, which require the composition of distributed IoT services. Traditional business processes are mostly managed by a single entity, which induces the problem of trust of process executions. In this paper, a smart contract for establishing the trust of process executions that fits into the IoT environment is presented. A consensus approach with selected validators extended from Practical Byzantine Fault Tolerance (PBFT) is introduced to address time and prejudice challenges.

  • An Automatic Discovery Process of Stock Value Information with Software Industry Based on Blockchain

    In view of the problems such as lack of integrity and real time of stock value information disclosed by listed companies, this paper takes the software industry as an example to construct an automatic discovery process. It includes three parts: value generation, value record and value evaluation. The process of value generation is described by Porter's Value Chain, and value record is realized based on the distributed network and consensus mechanism of blockchain. Then, value evaluation applies smart contracts, encryption technology and Economic Value Added (EVA) method to integrate, optimize, control and appreciate the value information. This automatic discovery process of stock value information connects the stock trading system, software enterprises, investors and supervision organizations, which will standardize the stock market and make social funds and services invested in better enterprises.



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