Blockchain Papers

Rainer Lenz

No abstract is available for this record.

Mohammad Knio

This The virtual currency is a paramount in a strong economical situation of any country in the future, especially the countries that try to lead the world with its economy, this currency has been created to replace the traditional currency of the countries that can be issued by any central bank and put a value for it, but the virtual currency is a currency that no one can control and manipulate its value and no one can use it to control any country economical situation (c.f. Selgin, 1988).The virtual currency helps poor countries to develop its economy because it will have the same currency that any developed country has with the same value. But the virtual currency will face a lot of problems before entering to market(Gandal, N., &Halaburda, H. (2014) and will face a lot of barriers that will stop the development of the state economy, some of those problems are: the culture of the country and the government laws and policies, plus there is an important problem that it will face and it represent by the economic agreements and the Unified Banks Network (e.g. Jerin, 2014).To solve those problems the research will use the qualitative method with an interpretive research philosophy, that helps the research to use specific case study that have similar situation to collect the second data and use the interview to collect the primary data.The interview that is made with experts will show some solution that answer the research question and it can be applied and the step to apply it to receive to needed solution to let the virtual currency be accepted in the market (Gandal, N., &Halaburda, H. (2014). Therefore, the government started to encourage the citizen and the companies to use this new currency, and they created an environment that helps those users to trust and accept it.This currency will face a lot of obstacles and problems at the beginning, the government will try to put plans and long term strategies to solve these problems before they occur, starting from creating and issuing new laws and policies arriving to create a large and strong educational advertising to let the citizen know this new currency and its benefits.Also, the private sectorsare responsible too, especially the bank sectors because they have the principle relation with this field and they have to motivate their customers to use it (Gans, J., &Halaburda, 2013).From this research, we will try to find some solutions that the concerned sector need to apply to let the virtual currency enter the market and let the citizen trust it and start trading with it (Gandal, N., &Halaburda, H. (2014).

Anı Bulut

Developments in internet-based payment platforms employing the blockchain technology known as “cryptocurrencies” contributed their integration in the official payment systems. Because of the growing interest in cryptocurrencies, it is necessary to review existing cryptocurrency research literature and determine areas for future studies. This study gives an up to date summary of accessible literature on cryptocurrencies according to their subject of issues, theories, methods, and findings and provides direction for future research. A systematic literature review was carried out to examine accessible academic and reliable publications between 2010 and 2018. Based on results research limitations for individual, organizational, ecosystemic and discourse approaches are identified and the study concluded that there are still insufficient and uncovered issues related to the cryptocurrencies notably from a legal and regulatory point of view.

Martín Garriga, Maximiliano Arias, Alan De Renzis

Blockchain is a decentralized transaction and data management solution, the technological weapon-of-choice behind the success of Bitcoin and other cryptocurrencies. As the number and variety of existing blockchain implementations continues to increase, adopters should focus on selecting the best one to support their decentralized applications (dApps), rather than developing new ones from scratch. In this paper we present a framework to aid software architects, developers, tool selectors and decision makers to adopt the right blockchain technology for their problem at hand. The framework exposes the correlation between technological decisions and architectural features, capturing the knowledge from existing industrial products, technical forums/blogs, experts' feedback and academic literature; plus our own experience using and developing blockchain-based applications. We validate our framework by applying it to dissect the most outstanding blockchain platforms, i.e., the ones behind the top 10 cryptocurrencies apart from Bitcoin. Then, we show how we applied it to a real-world case study in the insurtech domain.

Liudmila Zavolokina, Florian Spychiger, Claudio J. Tessone, Gerhard Schwabe

Recent research reports the need for consistent incentives in blockchain-based systems. In this study, we investigate how incentives for a blockchain-based inter-organizational network should be designed to ensure a high quality of data, exchanged and stored within the network. For this, we use two complementary methodological approaches: an Action Design Research approach in combination with agent-based modelling, and demonstrate, through the example of a real-world blockchain project, how such an incentive system may be modelled. The proposed incentive system features a rating mechanism influenced by measures of data correction. We evaluate the incentive system in a simulation to show how effective the system is in terms of sustaining a high quality of data. Thus, the paper contributes to our understanding of incentives in inter- organizational settings and, more broadly, to our understanding of incentive mechanisms in blockchain economy.

Luís Picciochi Oliveira, Liudmila Zavolokina, Ingrid Bauer, Gerhard Schwabe

The growing usage of tokens in real-world blockchain projects – mostly visible in ICOs – has unveiled the need to understand what blockchain tokens in fact represent and how they relate to their underlying business model. Previous research has contributed to this gap but often lacks a comprehensive understanding of tokens and their design as well as of the growing and rapidly-changing complexity in token landscape. This has crucial implications for assessing tokens' value and utility. Applying a structured, scientific approach towards blockchain tokens, we provide a comprehensive token classification and a decision-aid on token design. This is based on a literature review and an empirical study to cover this research gap. Our work offers a novel contribution in an emerging field within the Blockchain research domain and proposes structured analytical tools which can be used by both practitioners and researchers.

Amiangshu Bosu, Anindya Iqbal, Rifat Shahriyar, Partha Chakraborty

The blockchain technology has potential applications in various areas such as smart-contracts, Internet of Things (IoT), land registry, supply chain management, storing medical data, and identity management. Although the Github currently hosts more than six thousand active Blockchain software (BCS) projects, few software engineering research has investigated these projects and its' contributors. Although the number of BCS projects is growing rapidly, the motivations, challenges, and needs of BCS developers remain a puzzle. Therefore, the primary objective of this study is to understand the motivations, challenges, and needs of BCS developers and analyze the differences between BCS and non-BCS development. On this goal, we sent an online survey to 1,604 active BCS developers identified via mining the Github repositories of 145 popular BCS projects. The survey received 156 responses that met our criteria for analysis. The results suggest that the majority of the BCS developers are experienced in non-BCS development and are primarily motivated by the ideology of creating a decentralized financial system. Although most of the BCS projects are Open Source Software (OSS) projects by nature, more than 93% of our respondents found BCS development somewhat different from a non-BCS development as BCS projects have higher emphasis on security and reliability than most of the non-BCS projects. Other differences include: higher costs of defects, decentralized and hostile environment, technological complexity, and difficulty in upgrading the software after release. Software development tools that are tuned for non-BCS development are inadequate for BCS and the ecosystem needs an array of new or improved tools, such as: customized IDE for BCS development tasks, debuggers for smart-contracts, testing support, easily deployable simulators, and BCS domain specific design notations.

Andrew Chi-Chih Yao

In the Bitcoin system, miners are incentivized to join the system and validate transactions through fees paid by the users. A simple "pay your bid" auction has been employed to determine the transaction fees. Recently, Lavi, Sattath and Zohar [Lavi et al., 2019] proposed an alternative fee design, called the monopolistic price (MP) mechanism, aimed at improving the revenue for the miners. Although MP is not strictly incentive compatible (IC), they studied how close to IC the mechanism is for iid distributions, and conjectured that it is nearly IC asymptotically based on extensive simulations and some analysis. In this paper, we prove that the MP mechanism is nearly incentive compatible for any iid distribution as the number of users grows large. This holds true with respect to other attacks such as splitting bids. We also prove a conjecture in [Lavi et al., 2019] that MP dominates the RSOP auction in revenue (originally defined in [Goldberg et al., 2006] for digital goods). These results lend support to MP as a Bitcoin fee design candidate. Additionally, we explore some possible intrinsic correlations between incentive compatibility and revenue in general.

Wenyu Du, Shan L. Pan, Dorothy E. Leidner, Wenchi Ying

No abstract is available for this record.

Raphael Warren Jankeeparsad, Dev Datt Tewari

Since its introduction in 2008, the value and popularity of Bitcoin have risen exponentially. Despite being 10 years old, the concept of crypto currency is fairly new in South Africa. The increase in the value of Bitcoin, together with extensive media coverage, has led to the creation of a Bitcoin economic system with many South Africans jumping on the Bitcoin bandwagon. This study aims to identify the determinants affecting end-user adoption of Bitcoin in South Africa and to determine the main use of the crypto currency by South Africans. A research model was developed utilising constructs from the technology acceptance model and theory of planned behaviour. The model was then tested empirically by utilising two survey-based questionnaires, one for current users of Bitcoin and one for non-users. For users, perceived usefulness and access to facilitating conditions were the primary determinants influencing their decision to adopt the crypto currency while lack of trust and social influences were the primary reasons non-users chose not to adopt Bitcoin.

Anders Henten, Iwona Maria Windekilde, Anders Henten, Iwona Maria Windekilde

This paper examines current business applications of blockchain technology and discusses blockchain implications for transaction costs. Blockchains are a relatively new set of technologies that can be used for various business purposes, primarily activities related to contracting. Transaction costs comprise the operational costs of contacting (searching and communicating) as well as the costs of contracting (writing and enforcing contracts), and blockchains can be used to lower, first and foremost, the costs of writing and enforcing contracts. Other technology applications that have been investigated to a larger extent, such as multi-sided platforms, primarily help in lowering the costs of searching and communicating, while blockchains can contribute to lowering the costs of contracting.

Simon Trimborn, Wolfgang Karl Härdle

The cryptocurrency market is unique on many levels: Very volatile, frequently changing market structure, emerging and vanishing of cryptocurrencies on a daily level. Following its development became a difficult task with the success of cryptocurrencies (CCs) other than Bitcoin. For fiat currency markets , the IMF offers the index SDR and, prior to the EUR, the ECU existed, which was an index representing the development of European currencies. Index providers decide on a fixed number of index constituents which will represent the market segment. It is a challenge to fix a number and develop rules for the constituents in view of the market changes. In the frequently changing CC market, this challenge is even more severe. A method relying on the AIC is proposed to quickly react to market changes and therefore enable us to create an index, referred to as CRIX, for the cryptocurrency market. CRIX is chosen by model selection such that it represents the market well to enable each interested party studying economic questions in this market and to invest into the market. The diversified nature of the CC market makes the inclusion of altcoins in the index product critical to improve tracking performance. We have shown that assigning optimal weights to altcoins helps to reduce the tracking errors of a CC portfolio, despite the fact that their market cap is much smaller relative to Bitcoin. The codes used here are available via www.quantlet.de .

Anastasios A. Antoniou

Code and law have been entangled in a silent tension ever since the advent of cyberspace. The centralised architecture of cyberspace paved the way for law to prevail. The latest manifestation of this tension, however, appears to be opening up a Pandora’s box. Blockchain and law are on a silent collision course that must be addressed. This paper argues that in bridging the divide between code and law in blockchain, a radical rethink of regulation is imperative.

Sheikh Md. Rabiul Islam

The world of cryptocurrency is not transparent enough though it was established for innate transparent tracking of capital flows. The most contributing factor is the violation of securities laws and scam in Initial Coin Offering (ICO) which is used to raise capital through crowdfunding. There is a lack of proper regularization and appreciation from governments around the world which is a serious problem for the integrity of cryptocurrency market. We present a hypothetical case study of a new cryptocurrency to establish the transparency and equal right for every citizen to be part of a global system through the collaboration between people and government. The possible outcome is a model of a regulated and trusted cryptocurrency infrastructure that can be further tailored to different sectors with a different scheme.

Benjamin D. Trump, Marie‐Valentine Florin, H. Scott Matthews, Douglas Sicker · 5 authors

Blockchain and distributed ledger technologies (DLTs) have the capacity to improve how many companies and organizations conduct transactions or store information securely, among many other potential benefits. However, their development and implementation does not occur in a contextual vacuum and instead must adapt to the needs and requirements of their given user. As such, we argue that the governance of DLT and blockchain must be applied against two core questions: who should have access to information within a given DLT/blockchain, and should management of that system be open or restricted/permissioned? While the technology is still emerging, its application to and success within various organizations will be largely dependent upon these key governance concerns.

Victor Dostov, Pavel Shust, A. A. Khorkova

Digital currency became a relevant topic lately, with the central banks contemplating the idea of issuing their own virtual currencies. Central banks may issue their virtual currencies to simplify interbank cross-border settlements and make them cheaper. In order to achieve this, both commercial and central banks recognize these virtual currencies as means of payments. In these projects blockchain could be used to store information about the digital currencies, instead of fiat money. We have identified the risks associated with the virtual currencies issued by the central banks: conversion and volatility risks. We have looked at different approaches to the distributed ledger, principles for decentralized virtual currencies, possibility of these technologies being used by the central banks, various risks and their mitigation strategies. We also formulated the technological and legal principles that may guide the issuance of the digital currency by the central banks. And reviewed the practicability of issuing virtual currencies by the central banks, based on exogenous and endogenous factors.

Sean Thomas

This paper examines how circular economics addresses and uses smart technology, and demonstrates the lack of consideration given to ownership issues in such contexts. The extent to which circular economic ideals require controlling goods down-stream will be exposed. Following this is an analysis of the ramifications of smart technology, illustrated with recent examples of control through smart technology. This leads to a critique of the US Supreme Court’s recent decision on patent exhaustion Impression Products v Lexmark alongside the CJEU’s decision in UsedSoft on copyright, addressing implications for contracting practices. The article concludes by urging close comparison of claimed benefits arising from circular economic approaches to smart technology with the potential costs of control (or lack thereof) of novel technologies.

Alex Lipton, Thomas Hardjono, Alex Pentland

We study the evolution of ideas related to creation of asset-backed currencies over the last 200 years and argue that recent developments related to distributed ledger technologies and blockchains give asset-backed currencies a new lease of life. We propose a practical mechanism combining novel technological breakthroughs with well-established hedging techniques for building an asset-backed transactional oriented cryptocurrency, which we call the digital trade coin (DTC). We show that in its mature state, the DTC can serve as a much-needed counterpoint to fiat reserve currencies of today.

Dashiell Shapiro

No abstract is available for this record.

Anderson, Ross, Shumailov, Ilia, Ahmed, Mansoor, Rietmann, Alessandro

We study how attempts to regulate cryptocurrencies, or at least to mitigate the harm they do, are misdirected. We started by looking at how one might blacklist stolen bitcoin, and find that two established legal principles – the nemo dat rule and the Clayton's case precedent -- make tracing crime proceeds much simpler than researchers previously thought; they support a first-in first-out rule for taint tracking, which turns out to be much more efficient. However once we published initial results and were approached by theft victims, we discovered a more serious problem. Many bitcoin exchanges do not now give their customers actual bitcoin, but rather do off-chain transactions with other exchange customers or transact on customers' behalf with outsiders. Except where customers withdraw cryptocurrency into self-hosted wallets, the ownership of these assets is unclear. The number of off-blockchain transactions has increased enormously in the last eighteen months; we can't find good figures but the volume is sufficient to raise serious concerns and the practice falls under e-money regulations that are not being enforced. In short, the security, economics and regulatory problems of cryptocurrencies in 2018 turn out to be rather different from those described in the academic literature. The real problem is that we are seeing the emergence of a shadow banking system. Cryptocurrencies do not solve the underlying problems that made bank regulation necessary, and we sadly predict that many of the familiar second-order problems will also reappear. We discuss the implications for regulating cryptocurrencies and smart contracts more generally, and suggest eight things that regulators and central banks might usefully do.

Amir Feder, Neil Gandal, JT Hamrick, Tyler Moore · 5 authors

This study examines blockchain technologies and their pivotal role in the evolving Metaverse, shedding light on topics such as how to invest in cryptocurrency, the mechanics behind crypto mining, and strategies to effectively buy and trade cryptocurrencies. Through an interdisciplinary approach, the research transitions from the fundamental principles of fintech investment strategies to the overarching implications of blockchain within the Metaverse. Alongside exploring machine learning potentials in financial sectors and risk assessment methodologies, the study critically assesses whether developed or developing nations are poised to reap greater benefits from these technologies. Moreover, it probes into both enduring and dubious crypto projects, drawing a distinct line between genuine blockchain applications and Ponzi-like schemes. The conclusion resolutely affirms the continuing dominance of blockchain technologies, underlined by a profound exploration of their intrinsic value and a reflective commentary by the author on the potential risks confronting individual investors.

Chinmay Patel

BlockX Labs, Toronto, ON, Canada

Andreas Freund, Danielle Stanko

Starting with BitTorrent and then Bitcoin, decentralized technologies have been on the rise over the last 15+ years, gaining significant momentum in the last 2+ years with the advent of platform ecosystems such as the Blockchain platform Ethereum. New projects have evolved from decentralized games to marketplaces to open funding models to decentralized autonomous organizations. The hype around cryptocurrency and the valuation of innovative projects drove the market cap of cryptocurrencies to over a trillion dollars at one point in 2017. These high valued technologies are now enabling something new: globally scaled and decentralized business models. Despite their valuation and the hype, these new business ecosystems are frail. This is not only because the underlying technology is rapidly evolving, but also because competitive markets see a profit opportunity in exponential cryptocurrency returns. This extracts value from these ecosystems, which could lead to their collapse, if unchecked. In this paper, we explore novel ways for decentralized economies to protect themselves from, and coexist with, competitive markets at a global scale utilizing decentralized technologies such as Blockchain.

Sevinj Ahmadova

The emergence of new technologies leads to the reconsideration of business processes identified with older technologies, but many advantages that they promise do not immediately appear. The transfer of the ledgers kept in paper form to the computer environment presents a challenge as a revolution in the field of payments. However, since this change takes place in the form of recording rather than recording the transaction, the processes underlying the transactions remain substantially the same.