Follow blockchain research across journals, conferences, and preprint repositories.
9,941 results · page 336 of 415
Julie Frizzo-Barker, Peter A. Chow-White, Philippa Adams, Jennifer Mentanko · 6 authors
No abstract is available for this record.
GĂŒzin ĂzdaÄoÄlu, Muhammet Damar, AĆkın ĂzdaÄoÄlu
No abstract is available for this record.
Soner Gökten, Burak ĂzdoÄan
No abstract is available for this record.
Bashar I. Hameed
Blockchain Ă and Cryptocurrency has gotten wider considerations as of late. The decentralized digital Cryptocurrency Ă and its underlying ĂąâŹĆBlockchain ĂąâŹÂ technology has created much excitement in the technology community. The financial technology sector sees high potential value in Cryptocurrency Blockchain Ă protocols, or distributed-ledger technology. The key advantage of this technology lies in the fact that it enables the establishment of secured, trusted, and decentralized autonomous ecosystems for various scenarios, especially for better usage of the legacy devices, infrastructure, and resources. In this paper, we presented a systematic investigation of Blockchain Ă and Cryptocurrencies with explained simply in a way that Cryptocurrency is a form of digital currency that is being used to make transactions using a ledger known as Blockchain Ă which is a decentralized system of banking in which there is no centralized authority and all the control lies on an algorithm and its controlling users. Blockchain , a financial tool that can potentially play an important role in the sustainable development of the global economy. The new technology is expected to bring massive benefits to consumers, to current banking system and to the whole society in general.Ă
Seda Karagöz Zeren, Engin Demirel
No abstract is available for this record.
Cai Xu-dong, Xi Zhao, Bin Zhang
Smart contract brings more versatile functions in blockchain technology. However, its adoption rate is not as high as expected. Currently, there is no thorough study addressing such problem. To fill such gap, we propose to use peer influence to explain smart contract adoption in blockchain user network. We explore whether and how multiple types of peer influence including direct pee influence and indirect peer influence, simultaneously affect individual adoption decisions of smart contracts. Our hypotheses are examined in the context of CryptoKitties adoption in the Ethereum network using the public dataset of Ethereum including 350 million transactions from over 20 million distinct accounts. Our results suggest that the adoption of the software is positively affected by direct peer influence and indirect peer influence. Moreover, we find that users who have higher social status in the blockchain network are less susceptible to peer influence. The results provide strong evidence of peer influence on smart contract adoption through various mechanisms.
Marc T. Hamilton
Abstract The rapid evolution of the blockchain and distributed ledger technology and the associated applications will require many changes in the way business is transacted and how transactions are recorded. Significant R&D investments in blockchain environments and the maturation of application uses of âsmart contractsâ and other types of selfâexecuting tools are establishing frameworks for expanded use, infrastructure growth, and further development. The realization of the impact of these investments is currently changing entire business processes, transforming industries, and impacting governments globally. This global disruptive impact is a major technology evolution and will be transformational to society over the next several decades much as the Internet has been over the last 30 years. As these changes will be especially transformational to fundamental accounting processes, tools, and methodologies of today, accounting and finance professionals would be wise to embrace the technological challenges associated with blockchain technology.
Chris Elsden, Kate Symons, Raluca Bunduchi, Chris Speed · 5 authors
Recent work within HCI and CSCW has become attentive to the politics of data and metrics in order to highlight the implications of what counts and how. In this paper, we relate these discussions to the longstanding distinctions made between value and values. We introduce literature on 'Valuation Studies' and argue for understanding the politics of data through valuation - an ongoing social practice that transforms socially embedded values into different forms of more abstract value. This theoretical work is developed through an ethnographic study of contemporary UK charity shops, as a site focused on the labour of valuation, but embedded in both local and global values. Through this study, we consider implications for the intervention and design of 'data-driven innovation', with a particular focus on distributed ledger technologies. We argue that these technologies inevitably engage in valuation, and require careful attention to the ongoing processes by which value is translated and performed by different stakeholders.
Danielle D'Onfro
This Essay explores the barriers to deploying smart contracts in the consumer finance space: the humans themselves, existing consumer protection laws, and the other businesses which have financial contracts with consumers but that cannot deploy smart contracts. These three barriers render perfectly automated enforcement all but impossible. Nevertheless, there may be room for modifiable smart contracts in the consumer finance space â although these contracts may be only marginally more efficient than traditional contracts.
Nishani Edirisinghe Vincent, Anne M. Wilkins
SUMMARY The novelty, ambiguity, and the lack of official guidance surrounding cryptocurrency transactions impose additional audit risks that should be considered during client acceptance and retention and planning audit procedures. We develop a four-quadrant model to assist auditors in client acceptance and continuance decisions and identify cryptocurrency risks that should be considered during audit planning and audit evidence gathering.
Muhammad Habib ur Rehman, Khaled Salah, Ernesto Damiani, Davor SvetinoviÄ
The recent growth in blockchain-based cryptocurrency ecosystem has been attracting researchers, developers, investors, regulators, and speculators to develop new economic and business models for trade, investment, and taxation. Currently, the cryptocurrency ecosystem is immature with multifaceted trust issues at all levels from technology providers to users and governments. In this article, we present a detailed analysis of trust issues in the cryptocurrency ecosystem, including a detailed taxonomic discussion of the key trust aspects including price manipulation, price volatility, insider trading, parallel economy, shadow economy, reputation systems, transparency, centrality, token economy, governance, regulations, design, usability, privacy, and security. We also present a comparative analysis of the top 10 cryptocurrencies that are holding about 85% of the total market capital. Finally, we present a detailed summary of the key trust issues and their potential immediate, short-term, and long-term solutions. This article reveals that significant effort is required to develop a fully trustworthy cryptocurrency ecosystem.
Mousa Ajouz, Adam Abdullah, Salina Kassim
In the crypto world, there is a proverbial (and literal) gold rush now occurring. Currently, more than 37 goldâbacked cryptocurrency companies have now emerged. Interestingly, some of them also claim to be SharÄ«Êżah âcompliant. Introducing precious metalâbacked cryptocurrencies is perceived to be an innovation among global payment systems, hampered in part by lack of supporting empirical evidence. Therefore, this research investigates potential users' tendency to adopt a SharÄ«Êżah âcompliant precious metalâbacked cryptocurrency. As such, this study adopts an extended adoption model, which consists of eight factors. Partial least squares structural equation modeling (PLSâSEM) analysis was conducted on data elicited from economic active residents in Klang Valley from questionnaires. Overall, it was found six out of the eight constructs specified to influence the adoption of precious metalâbacked cryptocurrency were statistically significant where 54.5% of the variation in adoption of PMBC can be explained by the structure model provided by this research. It was also found 63.55% of the respondents are willing to adopt precious metalâbacked cryptocurrency in their future transactions.
Amol Thakre, Fadi Thabtah, Seyed Reza Shahamiri, Suhel Hammoud
Bitcoin is among the highest rated digital crypto-currency in financial investment markets. This technology relies on a backbone of distributed data architecture and peer-to-peer networking model called Blockchain. Unlike the current digital economy, which is governed centrally by financial institution or governments, Blockchain is fully autonomous without any third-party involvement. The exorbitant success of Bitcoin has attracted investors, scholars as well as organizations to peek into this lucrative technology for the possible application to other areas apart from crypto-currency. Blockchain can adopt Smart Contracts, which are digitally enabled contracts that can be executed and enforced fully or partially using pre-defined notions. The aim of this research is to investigate the synergy between Smart Contract and Blockchain to propose a digital framework for an academic paper publication model that has the capability to automate the entire process and challenge the existing system. It can also bring together all the stakeholders under the same system. The proposed model can further hold the stakeholders accountable for breach of contracts and/or reward them for executing the successes of terms pre-configured in the Smart Contract. The proposed model, called Digital Smart Publication or DSP (as referred in the document), is highly secure and ensures balance in distributing rewards to the involved stakeholders while keeping data integrity and security as paramount features.
LIU Jia-lan, Xiaoyu Wu, Wanjun Yu, WANG Zi-chen · 6 authors
From the perspective of travel insurance, this paper combines travel insurance and blockchain technology to design a travel insurance system based on blockchain technology. This paper first analyzes the existing problems related to travel insurance, and then further studies the core technologies of blockchain applied in this system, such as equality network, Byzantine consensus mechanism, asymmetric encryption and intelligent contract. Then the model of travel insurance system based on blockchain is established, and the architecture, function and process design of the system are carried out. Finally, the system is evaluated and extended from the single travel insurance to the whole insurance industry, and the combination of block chain technology and insurance industry innovation is summarized and prospected.
Patrick Ndayizigamiye, Shopee Dube
The South African healthcare system is hampered by many challenges. Most of the challenges are systematic in nature and hence require strengthening processes and information flow throughout the entire healthcare. This entails putting in place mechanisms that simplify the workflow but also enhance transparency and accountability. Blockchain has been hailed for allowing a transparent and decentralised workflow. Immutability, traceability and decentralised ledger are some of the features that make blockchain appealing to many organisations. This paper presents a case for the use of blockchain within the public healthcare in South Africa. It further portrays how blockchain could be used to foster transparency and accountability in patient-centered care in South African public healthcare institutions.
Nedaa Baker Al Barghuthi, Cornelius Ncube, Huwida Said
The Government of the United Arab Emirates (UAE) is moving towards the Smart City and integrating Blockchain (BC) technology among its services to the public. In April 2018, the UAE government launched a Blockchain Strategy of 2021. Under this initiative, 50 percent of government transactions will be processed over a BC platform. Eleven billion dirhams are expected to be saved in transactions and documents prepared in the government sector. The UAE 2021 strategy includes four pillars, focusing on residence happiness, government efficiency, advanced legislation, and global entrepreneurship. In October 2016, the emirate of Dubai, launched a local BC strategy to become the first energy-powered city that leads the future economy by 2020. This motivation placed the Government of UAE as a unique and pioneered country in innovation and enabling the ecosystem to be addressed in both the public and private sectors. This strategy is based on three domains: government effectiveness, industry innovation, and international, domestic leadership. BC projects will be experimenting throughout the country in many sectors such as energy, transportation, logistics, tourism, health, education and employment, economic development, safety and justice, social services, municipal and land works. This paper study the state of art of the UAE strategy towards adopting BC technology among all its entities. A survey has been conducted to evaluate the strategic effectiveness of this new technology. The study involves a combination of 71 public and private companies that operate in the UAE. The outcome shows that there is a need to integrate this technology. At the same time, the survey concluded that 92.0% of the companies are aware of the technology. It also highlighted that 55% of companies suffer from the lack of experienced consultants and outsources their services. The survey confirmed that BC technology had been used in different industrial use cases such as supply chain (35%), Internet of things (27%), and financial transactions (25%).
Vincent Furrer, Klaus-Georg Deck
Zusammenfassung Dieser Beitrag stellt die GrundsĂ€tze von auf Smart Contracts und der Blockchain-Technologie basierenden Rating-Verfahren zur BonitĂ€tsbewertung vor. Es werden die technologischen Grundlagen von Blockchain und Smart Contracts erlĂ€utert und diskutiert, inwieweit die Finanzbranche im Bereich des Ratings von dieser Technologie profitieren kann. ZunĂ€chst werden die Probleme traditioneller Ratingverfahren und deren Akteure thematisiert und anschlieĂend LösungsansĂ€tze aufgezeigt, um diese zu ĂŒberwinden. Damit zeigt dieser auĂerhalb der traditionellen Bankdienstleistungen befindliche Anwendungsfall, dass mit der Blockchain-Technologie neue Potenziale fĂŒr GeschĂ€ftsmodelle entstehen, die etablierte Prozesse grundlegend verĂ€ndern und damit ein weiteres Mosaik zur Disruption der Finanzbranche darstellen können.
Authors unavailable
No abstract is available for this record.
Shaista Anwar, Vinod Kumar Shukla, Sindhu Suresh Rao, Bhoopesh Kumar Sharma · 5 authors
With the realizing need to control fraud in the private and the public sector, we observe the past trends of corporate frauds, in terms of money laundering, counterfeit, misrepresentation of financial records by deviating rules, this mostly attracts developing economies which has spread its attention in various branches of the nation thus providing the right opportunity for criminal minds to set at work. Our paper focuses to, an aspect of accounting and helping auditors to prevent corporate fraud at an early stage. Paper also critically analyzes the impacts and scope of blockchain technology for auditing with the strong literature review in the field of blockchain technology and its application in the audit process. We have proposed a framework which uses the blockchain based IBC (Identity based cryptography), for blockchain node creation which will be added to the blockchain network. Any financial transaction can be properly audit with the implementation of this framework, as blockchain technology provides a very secure platform for the transaction and at the very same time auditing can also be completed because entire system of blockchain is transparent.
HyoungâGoo Kang, Kyounghun Bae, Joon Chae, Bonha Koo
We examine how investor emotions and Bitcoin price influence each other using high-frequency data and NLP analysis. Emotions regarding Bitcoin are extracted from an online chatting window at one of the largest cryptocurrency exchanges in Korea. To control for global factors, we analyze relative Bitcoin prices, Korean premium, and differences between Korean exchange and other global prices. We aggregate intraday high-frequency data at five-minute intervals from October 8, 2017 to January 23, 2018. The identified emotions predict the return and volatility of Korean premium five minutes ahead. The results are economically significant: simple trading strategies using the relationship between emotions and Bitcoin prices generate profits. Consequently, investor emotions drive Bitcoin prices, suggesting irrational crypto-markets that rational speculators can exploit, but policy makers need to address.
S P V Subba Rao, Anahita Minuchaher Havewala
Most modern enterprise contract management systems deal with thousands of contracts. These applications are built to operate inclusively, i.e. preparing the contracts or editing the existing contracts within the application is quite easy. But, organizations also deal with various types of contracts outside such systems. Individuals working in the legal domain work on contracts stored mostly in word, pdf format. They usually work on these documents to generate various versions of the contracts. But sometimes, there exist physical contracts in the form of printed documents which needs to be digitized and fed into the system. If a contract management system provides the functionality of editing such contracts in the application, it poses a great challenge for the user to get them into the application, which might involve manual entry of contract from a physical document, copy/paste of content from a word/pdf file into the application. There exists no such intelligence to extract these clauses/content from physical documents, classify them with respect to many parameters such as applicable governing laws, the type of content present in the clauses such as Lease agreement, Sale deed, etc. and finally reuse them by having such clauses in a clause library. This smartness needs to be introduced into any CMS systems for seamless contract migration.
M. Wilferd Roshan, Mostafa Mozafari, Hanieh Mirzayi
Bitcoin, one of the realities is the economic system in contemporaneously, which, despite the opportunities, threats and risks it poses to the economic system of countries. At the moment, Bitcoin be considered, as the most used and most valuable virtual currency in the real world. Bitcoin is actually an internet innovation and with similar functions of paperless money or government money, a tool for transferring or storing value is considered with a decentralized nature, which has become widespread in the cyberspace and allows users to do so the entire process of publishing, processing and deals is made by users' networks and without any intermediary. There are many discussions about the nature of bitcoin. Indeed, bitcoin can be considered as a currency, capital or commodity? Extending the welcome to bitcoin has made it possible to examine Bitcoin's various dimensions and its use in the economic system on the agenda of research centers, jurisprudence centers, legislative assembly and central banks of many countries of the world That Iran is no exception. A look on the Bitcoin studies indicate that many experts believe Bitcoin can head certain functions in the real world that traditional cash and e-money play in the economy .Therefore, it does not contradict with Sharia law and Islamic principles, so as virtual currency accepted But the problems and challenges faced in this regard That must be The reliability and confidence in the exchanges by setting proper rules and strict monitoring
Wim Laurier
This paper presents my ideas on how blockchain technology and distributed ledger technology in general can facilitate the establishment and management of open value networks and value networks in general. The paper defines value networks, open value networks, business-ecosystems and collaboration spaces. The paper also argues that the Resource-Event-Agent (REA) ontology can offer valuable support for describing the collaboration spaces of which value networks are composed. The paper also discusses the nature, relevance, potential impact and issues of the blockchain technology. Finally, the paper proposes an MDA approach for both smart-contract and blockchain development to address the listed blockchain technology issues.
RÄzvan Nicolescu
Abstract This position article brings together perspectives from social sciences, computer science and economy to interrogate the emerging meanings of value produced by Distributed Autonomous Organizations (DAO). We explore this process in the context of the wider political economy enabled by Distributed Ledger Technologies (DLT) and Smart Contracts (SC). The article then questions the ways in which the current implementations of DAO reflect the various regimes of value and the emergent possibilities to rethink the social contract.