2,021 research outputs found

    Outpaced by the chain - How Blockchain is being promoted in East Asia. Bertelsmann Asia Policy Brief 13.02.2019

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    Blockchain is one key technology that will dominate the economy in the near future. China, Japan and South Korea protect their blockchain innovations with patents. By the time German players wake up, the field will have been staked out. Applications can be bought, but others will have the control and the earnings. The private sector and government in Germany should drop their skeptical attitude, invest in research and test practical applications, argues Finn Mayer-Kuckuk

    Low-resource eclipse attacks on Ethereum’s peer-to-peer network

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    We present eclipse attacks on Ethereum nodes that exploit the peer-to-peer network used for neighbor discovery. Our attacks can be launched using only two hosts, each with a single IP address. Our eclipse attacker monopolizes all of the victim’s incoming and outgoing connections, thus isolating the victim from the rest of its peers in the network. The attacker can then filter the victim’s view of the blockchain, or co-opt the victim’s computing power as part of more sophisticated attacks. We argue that these eclipse-attack vulnerabilities result from Ethereum’s adoption of the Kademlia peer-to-peer protocol, and present countermeasures that both harden the network against eclipse attacks and cause it to behave differently from the traditional Kademlia protocol. Several of our countermeasures have been incorporated in the Ethereum geth 1.8 client released on February 14, 2018.First author draf

    FinBook: literary content as digital commodity

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    This short essay explains the significance of the FinBook intervention, and invites the reader to participate. We have associated each chapter within this book with a financial robot (FinBot), and created a market whereby book content will be traded with financial securities. As human labour increasingly consists of unstable and uncertain work practices and as algorithms replace people on the virtual trading floors of the worlds markets, we see members of society taking advantage of FinBots to invest and make extra funds. Bots of all kinds are making financial decisions for us, searching online on our behalf to help us invest, to consume products and services. Our contribution to this compilation is to turn the collection of chapters in this book into a dynamic investment portfolio, and thereby play out what might happen to the process of buying and consuming literature in the not-so-distant future. By attaching identities (through QR codes) to each chapter, we create a market in which the chapter can ‘perform’. Our FinBots will trade based on features extracted from the authors’ words in this book: the political, ethical and cultural values embedded in the work, and the extent to which the FinBots share authors’ concerns; and the performance of chapters amongst those human and non-human actors that make up the market, and readership. In short, the FinBook model turns our work and the work of our co-authors into an investment portfolio, mediated by the market and the attention of readers. By creating a digital economy specifically around the content of online texts, our chapter and the FinBook platform aims to challenge the reader to consider how their personal values align them with individual articles, and how these become contested as they perform different value judgements about the financial performance of each chapter and the book as a whole. At the same time, by introducing ‘autonomous’ trading bots, we also explore the different ‘network’ affordances that differ between paper based books that’s scarcity is developed through analogue form, and digital forms of books whose uniqueness is reached through encryption. We thereby speak to wider questions about the conditions of an aggressive market in which algorithms subject cultural and intellectual items – books – to economic parameters, and the increasing ubiquity of data bots as actors in our social, political, economic and cultural lives. We understand that our marketization of literature may be an uncomfortable juxtaposition against the conventionally-imagined way a book is created, enjoyed and shared: it is intended to be

    Sustainable Development Report: Blockchain, the Web3 & the SDGs

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    This is an output paper of the applied research that was conducted between July 2018 - October 2019 funded by the Austrian Development Agency (ADA) and conducted by the Research Institute for Cryptoeconomics at the Vienna University of Economics and Business and RCE Vienna (Regional Centre of Expertise on Education for Sustainable Development).Series: Working Paper Series / Institute for Cryptoeconomics / Interdisciplinary Researc

    Digital Identity Wallets and their Semantic Contradictions

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    In the fight for individual privacy against online surveillance and personal data breaches, blockchain developers often pitch encrypted wallets as solutions. Five examples from 2021 and 2022 involve Big Tech companies or large European governments. On the private side, Jack Dorsey’s Block company announced the Web5 Self-Sovereign Identity (SSI) Service. Meta and Twitter added support for fictional identities – tokenised avatars or profile pictures like Bored Apes and CryptoPunks, registered to Web3 wallets that putatively offer “self-sovereign ownership”. On the public side, the European Commission funded SSI wallet trials for digital diploma credentials. Germany’s federal government launched a mobile driving licence (mDL), stored in a SSI wallet. This one term, “SSI”, is associated with varying sets of technologies and ethical principles. Following complaints that “SSI” generates confusion, I offer a typology that highlights four semantic contradictions as well as a concept map to guide future research

    Sustainable Development Report: Blockchain, the Web3 & the SDGs

    Get PDF
    This is an output paper of the applied research that was conducted between July 2018 - October 2019 funded by the Austrian Development Agency (ADA) and conducted by the Research Institute for Cryptoeconomics at the Vienna University of Economics and Business and RCE Vienna (Regional Centre of Expertise on Education for Sustainable Development).Series: Working Paper Series / Institute for Cryptoeconomics / Interdisciplinary Researc

    Renewable Energy Access and Resilience in Urban Developing Areas: Distributed Solar Networks and Peer-to-Peer Energy Trading in Puerto Rico

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    This senior essay under the Environmental Studies major at Yale University explores the environmental and social benefits of applying innovative technology to the energy sector. Three types of energy networks are analyzed, focusing on the use of distributed energy and peer to peer energy trading on a blockchain platform. The benefits of distributed renewable energy networks can most strongly be applied to locations in need of more reliable, resilient, and cost-effective electricity. Puerto Rico is a case study. Methods include analysis of U.S. Energy Information Administration and Census Bureau data as well as personal interviews with Puerto Rican energy developers. A financial model was created to tailor a power-purchase-agreement format to residential solar in order to develop an alternative funding method to the current grid price of electricity of 22.77 cents per kWh in Puerto Rico. The hurricanes of 2017 damaged the entire island, and every problem was exacerbated by the prolonged and total lack of power. Building a network of distributed solar energy through residential and school rooftops in Puerto Rico is argued in this thesis to be the best post-hurricane action to take in order to improve energy reliability, affordability, access, and resilience to future disasters and risks
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