A systematic literature review of blockchain-based applications: Current status, classification and open issues

Why Has IPO Underpricing Changed over Time

Internet of Things (IoT) is reshaping the incumbent industry to smart industry featured with data-driven decision-making. However, intrinsic features of IoT result in a number of challenges, such as decentralization, poor interoperability, privacy, and security vulnerabilities. Blockchain technology brings the opportunities in addressing the challenges of IoT. In this paper, we investigate the integration of blockchain technology with IoT. We name such synthesis of blockchain and IoT as blockchain of things (BCoT). This paper presents an in-depth survey of BCoT and discusses the insights of this new paradigm. In particular, we first briefly introduce IoT and discuss the challenges of IoT. Then, we give an overview of blockchain technology. We next concentrate on introducing the convergence of blockchain and IoT and presenting the proposal of BCoT architecture. We further discuss the issues about using blockchain for fifth generation beyond in IoT as well as industrial applications of BCoT. Finally, we outline the open research directions in this promising area.

Blockchain for Internet of Things: A Survey

pdf/an-overview-on-smart-contracts-challenges-advances-and-22b5vhds3l.pdf

An overview on smart contracts : Challenges, advances and platforms

The limits of trust-free systems : A literature review on blockchain technology and trust in the sharing economy

An ever growing variety of smart, connected Internet of Things (IoT) devices poses completely new challenges for businesses regarding security and privacy. In fact, the adoption of smart products may depend on the ability of organizations to offer systems that ensure adequate sensor data integrity while guaranteeing sufficient user privacy. In light of these challenges, previous research indicates that blockchain technology could be a promising means to mitigate issues of data security arising in the IoT. Building upon the existing body of knowledge, we propose a design theory, including requirements, design principles, and features, for a blockchain-based sensor data protection system (SDPS) that leverages data certification. To support this, we designed and developed an instantiation of an SDPS (CertifiCar) in three iterative cycles intented to prevent the fraudulent manipulation of car mileage data. Following the explication of our SDPS, we provide an ex post evaluation of our design theory considering CertifiCar and two additional use cases in the areas of pharmaceutical supply chains and energy microgrids. Our results suggest that the proposed design ensures the tamper-resistant gathering, processing, and exchange of IoT sensor data in a privacy-preserving, scalable, and efficient manner.

/pdf/blockchain-for-the-iot-privacy-preserving-protection-of-1tdiqlkf9a.pdf

Blockchain for the IoT: Privacy-Preserving Protection of Sensor Data

Giving people ownership of the data they produce becomes more and more important in times of ever-growing capabilities to collect and analyze data of individuals. In light of this challenge, we show how blockchain technology can enable privacy by presenting an odometer fraud prevention system. It records mileage and GPS data of cars and secures that on the blockchain, which strongly hinders odometer fraud. Our users own and control their data while at the same time data integrity is ensured. This facilitates the certification of that data. We discuss the advantages of this approach compared to current systems and also highlight limitations of our architecture and the use of blockchain technology.

Blockchain as a privacy enabler: an odometer fraud prevention system

Abstract Initial coin offerings (ICOs) and initial exchange offerings (IEOs) are distinct blockchain-based token offerings. Following multiple frauds associated with decentralized and unregulated ICOs, IEOs are emerging as a novel pathway that relies on centralized crypto exchange platforms acting as intermediaries. However, the question as to how this shift affects fundraising processes in what has traditionally been a decentralized environment remains unresolved. We here address this issue by empirically comparing the performance of ICOs and IEOs through the lens of signaling theory, focusing specifically on the impact of social media information across 305 token offerings (ICOs and IEOs). Our work introduces IEOs and explains how and why the volume and sentiment of social media signals may serve as predictors of fundraising performance. We furthermore find that the impact of these electronic word-of-mouth (eWOM) media signals is reduced in the case of IEOs—in the presence of a central cryptocurrency exchange platform mediator. We delineate implications for investors, ventures, platform providers, and regulators alike. 

/pdf/on-the-performance-of-blockchain-based-token-offerings-1o7yut4m.pdf

On the performance of blockchain-based token offerings

The formation of IT companies and even of entire new technological ecosystems depends heavily on external financing. Consequently, the IS community has intensely studied various financing sources such as venture capital, initial public offerings or debt. Blockchain technology has led to the emergence of a system of decentralized finance (DeFi) which includes decentralized versions of equity and debt financing. In particular, equity-like fundraisings referred to as initial coin offerings (ICO) have received serious traction. In this paper, we investigate the role of user-generated content (UGC) for ICO success. Specifically, we leverage signaling theory to analyze how the activity on blogs and discussion forums is related to the amount of capital raised and the valuation in ICOs. We analyze data of 216 ICOs and provide first results indicating the importance of discussion forum activity for ICO success. Furthermore, we find that blogs seem less relevant than in traditional finance.

The Role of User-Generated Content in Blockchain-Based Decentralized Finance

The sharing economy, the business of collectively using privately owned objects and services, has fuelled some of the fastest growing businesses of the past years. However, popular sharing platforms like Airbnb or Uber exhibit several drawbacks: a cumbersome sign up procedure, lack of participant privacy, overbearing terms and conditions, and significant fees for users. We demonstrate a Decentralised App (DAPP) for the sharing of everyday objects based on a smart contract on the Ethereum blockchain. This contract enables users to register and rent devices without involvement of a Trusted Third Party (TTP), disclosure of any personal information or prior sign up to the service. With increasing distribution of cryptocurrencies the use of smart contracts such as proposed in this paper has the potential to revolutionise the sharing economy.

/pdf/a-decentralised-sharing-app-running-a-smart-contract-on-the-5guhknyekq.pdf

A Decentralised Sharing App running a Smart Contract on the Ethereum Blockchain

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