Blockchain Papers

Sinclair Davidson, Primavera De Filippi, Jason Potts

No abstract is available for this record.

Konstantinos Christidis, Michael Devetsikiotis

ABSTRACT: Motivated by the recent explosion of interest around Blockchains, we examine whether they make a good t for the Internet of Things (IoT) sector. Blockchains allow us to have a distributed peer-to-peer network where non-trusting members can interact with each other without a trusted intermediary, in  a variable manner. We review how this  mechanism works and also look into smart contracts scripts that reside on the Blockchain that allow for the automation of multi-step processes. We then move into the IoT domain, and describe how a Blockchain-IoT  combination: 1) facilitates the sharing of services and resources leading to the creation of a marketplace of services between devices and 2) allows us to automate in a cryptographically variable manner several existing, time- consuming work owns. We also point out certain issues that should be considered before the deployment of a Blockchain network in an IoT setting: from transactional privacy to the expected value of the digitized assets traded on the network. Wherever applicable, we identify solutions and workarounds. Our conclusion is that the Blockchain-IoT combination is powerful and can cause sign cant transformations across several industries, paving the way for new business models and novel, distributed applications.

Christopher J. Pavlovski

The Internet has now become an environment and source for innovation development that has impacted a wide range of industries. The platform has enabled entrepreneurs to create groundbreaking solutions that have had a disruptive and transformative effect on the lives of many people. While banking had dealt with several innovations such as internet payment providers, more recently a virtual alternative to cash has begun to emerge. Although the notion of true electronic cash has been considered for some time, the availability of a practical electronic currency has only recently gained actual adoption that is forcing many financial institutions to reconsider the potential long-term impact. We provide some insight into the latest trends in cryptocurrency and propose a reference architecture for adopting this form of financial asset in a central banking scenario; i.e. a Fiat based cryptocurrency. The presently used cryptocurrency are based on a peer to peer scheme and hence we outline an IT solution that will accommodate a centrally issued electronic currency.

*Mbonigaba Celestin & ** Olivia Martinez

This study examines how decentralized finance protocols reshape consumer protection outcomes within blockchain financial markets amid growing global concerns regarding digital transaction security, governance transparency, and institutional regulatory adaptation. Using a balanced longitudinal panel dataset of 1,450 institutional year observations derived from BIS, IMF, OECD, and World Bank digital finance databases covering 2005 to 2014, the study applies fixed effects panel regression, moderation interaction modeling, clustered robust estimation, and multidimensional composite index construction to estimate the structural relationship between decentralized finance systems and consumer protection. The findings reveal that Smart Contract Infrastructure, Decentralized Financial Services, Blockchain Technology Integration, and DeFi Governance Structures exert positive and statistically significant effects on Consumer Protection, while the Digital Regulatory Environment significantly strengthens these relationships through regulatory clarity, cybersecurity readiness, legal enforcement, and digital literacy mechanisms. Interaction estimates further demonstrate that institutional readiness amplifies the protective capacity of decentralized financial ecosystems across heterogeneous digital markets. The study extends institutional governance and financial innovation theory by integrating technological infrastructure, decentralized governance, and adaptive regulatory conditioning into a unified explanatory framework. The findings provide policy relevant evidence for regulators, blockchain developers, and digital financial institutions seeking to strengthen consumer protection within technologically evolving financial ecosystems.

*Mbonigaba Celestin & ** Olivia Martinez

This study investigates how decentralized finance adoption reshaped banking intermediation structures across emerging digital economies during the foundational digital finance expansion period between 2005 and 2014 by evaluating the conditional role of financial technology environments in accelerating institutional financial transformation. Using a balanced panel dataset of 1,760 institutional year observations constructed from harmonized global digital finance repositories, the study applies fixed effects panel regression, interaction-based moderation estimation, heteroskedasticity robust clustered inference, and multidimensional composite index modeling to estimate the structural relationship between decentralized finance adoption and banking disintermediation. The findings reveal that decentralized finance adoption exerted a strong positive and statistically significant effect on banking disintermediation, with blockchain technology integration and digital financial accessibility producing the largest structural effects on non-bank financial participation and intermediary transaction displacement. The results further demonstrate that supportive financial technology environments amplified decentralized finance driven transformation through enhanced digital infrastructure readiness, cybersecurity preparedness, and institutional adaptability. Interaction estimates remained robust across alternative specifications, lagged estimations, and sensitivity diagnostics, confirming stable ecosystem conditioning effects across heterogeneous institutional environments. The study extends financial innovation and institutional transformation theories by integrating utilization, infrastructure, accessibility, and governance systems within a unified decentralized finance architecture. The findings provide globally relevant policy guidance for regulators and digital finance institutions seeking to balance financial innovation, inclusion, and banking system stability within emerging digital economies.

Andrés Guadamuz, Christopher T. Marsden

This paper examines Bitcoin from a legal and regulatory perspective, answering several important questions.
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\nWe begin by explaining what Bitcoin is, and why it matters. We describe problems with Bitcoin as a method of implementing a cryptocurrency. This introduction to cryptocurrencies allows us eventually to ask the inevitable question: is it legal? What are the regulatory responses to the currency? Can it be regulated?
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\nWe make clear why virtual currencies are of interest, how self-regulation has failed, and what useful lessons can be learned. Finally, we produce useful and semi-permanent findings into the usefulness of virtual currencies in general, blockchains as a means of mining currency, and the profundity of Bitcoin as compared with the development of block chain technologies. We conclude that though Bitcoin may be the equivalent of Second Life a decade later, so blockchains may be the equivalent of Web 2.0 social networks, a truly transformative social technology.

Xun Yi, Xuechao Yang, Andrei Kelarev, Kwok‐Yan Lam · 5 authors

Kriptovalute su digitalni novac utemeljen na kriptografiji i decentraliziranom sustavu. Postoje samo u elektroničkom obliku kao jedinstveni digitalni novčići ("tokeni"). Iza njih ne stoji autoritet države niti ih je moguće svojevoljno proizvesti. Rad se fokusira na značajkama, postavkama, razvoju i svim međuodnosima važnih ekonomskih faktora koji utječu na kriptovalute. U prvom poglavlju navedena su obilježja kriptovaluta. Drugo poglavlje daje primjere i govori o primjeni kriptovaluta u svakodnevnom životu. U trećem poglavlju je raspravljano o trenutnim i budućim regulacijama najmoćnijih zemalja svijeta (G20) , kao i njihovoj zajedničkoj suradnji u želji za jedinstvenim i standardiziranim pravilima, a sve u svrhu što kvalitetnijeg nadzora nad kriptovalutama kako bi se spriječile malverzacije i zaštitili potrošači. Četvrto poglavlje govori o inicijalnoj ponudi kovanica, a peto poglavlje je namijenjeno sigurnosti kriptovaluta. Cilj istraživanja je utvrditi koliko je studentska populacija upoznata i usmjerena prema novim oblicima digitalnog novca, koje značajke kriptovaluta smatraju pozitivnima, a koje negativnima i u kojoj su mjeri investirali ili su spremni investirati dio svojih ulaganja u kriptovalute i sl. Metode istraživanja korištene u radu su kompilacija na temelju proučavanja postojeće literature o temi rada, prikupljanje i analiza podataka vezanih uz kriptovalute, ponajprije podataka vezanih uz cijene i tržišnu kapitalizaciju, anketiranje studenata Ekonomskog fakulteta u Rijeci i metoda dedukcije putem koje su pokazane sve važne karakteristike i obilježja kriptovaluta. Na temelju provedene ankete u kojoj je sudjelovalo 90 studenata Ekonomskog fakulteta u Rijeci zaključak toga dijela istraživanja je da je mlada populacija dobro upoznata s kriptovalutama i njenim glavnim značajkama, ali i određenim nedostatkom informiranosti o tehnologiji (trećina studenata nije čula za pojam "blockchain") i nedovoljnoj odlučnosti oko investiranja i trgovanja u kriptovalute. Povrh toga, dokazan je i negativan utjecaj hakerskih napada i određenih kriminalnih radnji, kao i nestabilnost tržišne cijene na povjerenje studenata, ali i ukupne populacije vezane uz globalni financijski sustav u kriptovalute. Ishod istraživanja omogućio je da zaključimo kako su kriptovalute trenutno u ranoj fazi razvoja i nisu se dovoljno implementirale za široku primjenu u trgovini roba i usluga ili općenito kao sredstvo razmjene. Faktor koji je uključen u istraživanje kako bi opisao veličinu, odnosno obujam neke kriptovalute je tržišna kapitalizacija u dolarima. Temeljna ideja ovog rada je informirati čitatelja o pozitivnim i negativnim značajkama koje se se vežu uz kriptovalute. Na taj način čitatelji će biti bolje informirani i educirani o potencijalnom riziku ulaganja u kriptovalute, kao i većoj razini zaštite prilikom posjedovanja neke digitalne valute.

Russ Marshall

There are over 275 virtual currencies in existence today. One of these currencies is Bitcoin, the largest andmost recognised virtual currency in the world. With its exponential growth over recent years, Bitcoin isbringing a degree of permanence for, and dependability on virtual currencies that can no longer be ignored byregulators. While an increase in international regulatory activity over the past 12 months suggests that somegovernments understand this, Australian regulators appear reluctant to act. In addition to examining Bitcoin’soperational system in detail, this article examines the affect that Bitcoin is having on two key features of thefinancial system: (1) the money laundering and illicit finance supply system; and (2) the payment system. Bycomparing the effectiveness of the response measures enacted by Australian and international regulators inCanada, Singapore, the United States, and the United Kingdom, this article demonstrates that even thoughAustralia’s current payment system policy is capable of addressing the threats posed by virtual currencies, thecurrent money laundering and terrorist financing regulations fail to satisfy Australia’s international obligations,and stifle the legitimate use and development of virtual currencies in Australia.

Nick Vogel

Bitcoin’s popularity increased as its value increased and people became excited about the prospect of a trustless, decentralized currency that could be used on the Internet. Within the last two years, however, people and organizations began exploiting the potential of the block chain that powers the bitcoin network. These people realized that the block chain — a transparent public ledger that cannot be altered — can be used for more than digital currency. One such organization calls itself Ethereum and its developers plan to use block chains to allow decentralized autonomous applications to operate free of government censorship or corruption. While such a network would have a profound effect on society — allowing trustless voting, uncensored social networking and the like — its impact on copyrights could be devastating. This paper argues that the emerging, decentralized Internet (also known as Web 3.0) will be the straw that breaks the copyright owner’s back. This paper argues that, with block chain technology and decentralized applications, those buying and selling unauthorized copies of copyrighted material cannot be subject to court injunctions; making enforcement of copyrights nearly impossible on a decentralized Internet. This paper then proposes that copyright holders get out in front of the problem by embracing a decentralized Internet. This can only be done by drastically reducing the price of copyright licenses. In other words, by offering cheap licenses at the dawn of Web 3.0, copyright holders can instill a sense that it’s better to be safe than sorry when it comes to the ongoing struggle between technology and copyrights.

Peggy Valcke, Niels Vandezande, Nathan Van de Velde

The research looked at which third party payment providers (TPP’s) are covered by the PSD2 and AMLD4 directives, the consequences thereof, as well as to what extent such coverage goes; and sought to analyse the potential for the regulation of cryptocurrency in terms of combatting money laundering and terrorist financing. TPP’s gain possession of a significant amount of sensitive information, for instance by providing a gateway from which consumers log in to their bank accounts using their unique identifiers and credentials. As a result, these entities are drawing increasingly more attention from legislators and regulators.Under the framework of the PSD2, TPP’s will be subject to stringent regulatory standards similar to those placed on traditional payment service providers under the PSD. In the US, regulation of TPP’s must be assessed on a state-by-state basis. In Florida, for instance, they can be considered as money transmitters, thus putting them under that regulation, as well as the federal Bank Secrecy Act. In Asia, the number of TPP’s has grown significantly over the past years. In China, these actors are regulated by the People’s Bank of China, and are subjected to a number of requirements similar to those found in the EU, such as minimum capital requirements and anti-money laundering rules.Another notable development is that of alternative payment methods – a prime example here are cryptocurrencies such as bitcoin. The bitcoin ecosystem is decentralized, meaning that no single entity controls the system. Currently, there exists no convincing arguments to consider virtual currencies as regulated under the EU’s Payment Services Directive or the Second E-money Directive. While the PSD2 does introduce new terminology and significantly amended scope exemptions compared to the original Payment Services Directive, there is no wider inclusion of virtual currencies under its scope. A similar argument can be made for the recently adopted AMLD4, where virtual currencies have been omitted from its scope despite earlier signs that this development may be included. The researchers conclude their paper with several public and private sector recommendations.

Udo Milkau, Jürgen Bott

‘Digitalisation’ seems to be the current buzz word, and it is used to discuss various things from 3D printers via always-on health sensors powered by smartphones to challenges in financial services by new ‘non-bank’ players (so-called FinTechs), which track relationships with the clients. Payments, as an electronic product offered by banks for decades, are taken here as the subject of study to analyse the impact of digitalisation and future developments in payments. This is based on three examples representing three antagonistic concepts: interoperability, centralisation, and distributed systems. The examples highlighted here are: first, the implementation of the Single Euro Payments Area in Europe and a comparison between some original objectives with the current status of realisation; second, the development of so-called business platforms, such as Google or Facebook, which facilitate exchange between the agents in a multi-sided market; third, the emergence of digital currencies such as Bitcoins with decentralised ledgers and decentralised consensus systems used as means of payment. For all three examples, the form of digitalisation, the current implementation, potential limitations and future development paths are compared. Finally, the question of what a future payments ecosystem will look like and whether there will be a shift from interoperability to centralised models are discussed with the clients.

Annamart Nieman

This article is aimed at augmenting current awareness of virtual currencies ("VCs") in the South African legal community. To this end, it introduces the reader to VCs in general and decentralised convertible VCs ("DCVCs") in particular. Due to their design and interaction with the real economy and currency, DCVCs are on the radar of many financial regulators worldwide. As Bitcoin is considered the leading type of DCVC in terms of value and volume, its early beginnings in South Africa are probed. Although regulation should follow innovation, awareness of the VC ecosystem will not only warrant appropriate regulatory intervention when the time comes, but will also enable the growth and development opportunities associated with VCs. South Africa has not promulgated any legislation pertaining to VCs. The potential applicability of all current legislation and regulations relevant to VCs calls for in-depth research. This article aspires to serve as an appetiser to do so.

Eva Micheler

Abstract Computerisation facilitates instantaneous and direct links between all of us in our work and social lives. At the same time, and counter-intuitively so, securities are increasingly held indirectly through chains of custodians that operate between issuers and investors. This disconnects investors from issuers and can significantly reduce the value of assets. The regulatory framework does not prevent this effect. UK-regulated holders of client securities should be required to hold these directly in the name of the investor. At an international level, it is worth asking whether the technology underlying bitcoin and other cryptocurrencies can be used to create an un-intermediated securities ledger connecting investors and issuers directly.

Authors unavailable

No abstract is available for this record.

Alicja Mikołajewicz-Woźniak, Anna Scheibe

Purpose – The purpose of the paper is to determine the future role of virtual currencies. This paper indicates their pros and cons as alternatives to “real” money and explains their appearance as the reflection of the present trends. It also presents the possible scenarios of their development. Design/methodology/approach – The paper is based on the former foresight research results and literature review. It highlights the main trends in contemporary economy and their impact on financial services. The Bitcoin case is the starting point for the virtual currencies’ market analysis and construction of possible market changes scenarios. Findings – Virtual currency schemes are the reflection of present trends. They are just ahead of our times but may become a common means of payment, changing the way of providing financial services, eliminating intermediaries and marginalizing the role of financial institutions. Research limitations/implications – The multiplicity of virtual currencies and ceaseless introduction of innovations impede the presentation of the complete market picture. The lack of reliable statistical data makes the estimation of the market growth difficult. Practical implications – This paper indicates influence of technology development, virtualization and networking on payment systems’ functioning. Social implications – This paper shows the impact of environmental changes on consumers’ acceptance of virtual currencies. Originality/value – The virtual currency as a payment system is quite new and still a marginalized phenomenon. Nevertheless, the pace of virtual currency market growth after its recent introduction and appearance of Bitcoin successors seems to be the signs of future changes in financial service sector.

Chris Richter, Sascha Kraus, Ricarda B. Bouncken

Virtual currencies have been well-cited and well-discussed in the near past. Due to the loss of trust in the banking sector and the fear of loss of capital, low interest rates and uncertainty of existing currencies, the ground for a virtual currency was given. Virtual currencies and the money flows are controlled only online by the anonymous group of volunteers (also called peer); every single transaction is documented. Approximately 10,000 businesses worldwide accept payments with virtual currencies already, and the number is increasing steadily. This article analyzes the advantages and disadvantages of virtual currencies in comparison to real money and gives an outlook to a new banking system with high transparency and the chance to lead to a paradigm shift in the world of transactions and banking.

Marcus P. Lerch

Zusammenfassung Bitcoin sind als prominenteste Vertreter einer privaten virtuellen Währung in den Fokus der internationalen Regulierungsbehörden geraten. Der nachfolgende Beitrag zeigt die Herausforderungen der rechtlichen Erfassung dieses digitalen Geldes auf und plädiert in der Debatte um eine schärfere Regulierung des Bitcoin-Netzwerks für Zurückhaltung.

A.W. Jongbloed

In het Delta Lloyd magazine april 2015, p. 32, wordt aandacht besteed aan Martijn Wismeijer (43 jaar). Hij liet onlangs twee chips onder zijn huid implanteren, een voor bitcoins en een voor de honderden wachtwoorden die hij voor digitale toepassingen gebruikt. 1 Het is een feit dat we in het huidige ICT-tijdperk te maken krijgen met heel veel wachtwoorden die liefst zo weinig mogelijk identiek mogen zijn en het is duidelijk dat wie toegang krijgt tot die wachtwoorden ons leven behoorlijk kan ontwrichten. Maar is een chip voor bitcoins niet overbodig? Wat zijn bitcoins eigenlijk, wat is hun juridische status en zijn ze betaalmiddel?

Todd J. Barre

The emergence of Bitcoin as an online currency/payment system has been surrounded with controversy with equally passionate proponents and detractors arguing for its long-term viability. These debates lead to stimulating exercises for the finance or economics student eager to understand principles of money, currencies, and monetary economics. The author presents a summary of the key arguments in a pedagogical structure useful to instructors who wish to use Bitcoin as a practical tool to stimulate critical thinking on these topics in the college classroom.

George Danezis, Sarah Meiklejohn

Current cryptocurrencies, starting with Bitcoin, build a decentralized blockchain-based transaction ledger, maintained through proofs-of-work that also serve to generate a monetary supply. Such decentralization has benefits, such as independence from national political control, but also significant limitations in terms of computational costs and scalability. We introduce RSCoin, a cryptocurrency framework in which central banks maintain complete control over the monetary supply, but rely on a distributed set of authorities, or mintettes, to prevent double-spending. While monetary policy is centralized, RSCoin still provides strong transparency and auditability guarantees. We demonstrate, both theoretically and experimentally, the benefits of a modest degree of centralization, such as the elimination of wasteful hashing and a scalable system for avoiding doublespending attacks.

John Forrester

Bitcoin is an innovative virtual currency, which has gained much commercial traction, yet is widely overlooked by the accounting profession. Due to its parallels with actual currencies and its growing use, accountants should be aware of what bitcoin is, including its risks and benefits, in order to properly leverage its business uses. Of the existing financial instruments, derivatives stand out in their potential to stabilize the bitcoin market. Bitcoin regulation is sparse, but evolving, especially in the face of the emerging bitcoin securities and derivatives markets. The accounting profession is poised to play a major role in facilitating the future of proper regulation and oversight of Bitcoin.

Ashley S. Harrison, M. Scott Niederjohn, J. R. Clark

Economists define money as anything that is generally accepted in payment for goods and services or in the repayment of debts.1 Paper money and coins clearly fit this definition, but deposits in checking accounts are so widely accepted that they are also considered in the narrowest definition of money used by the Federal Reserve, called “M1.” M1 is the sum of all currency, checkable deposits, and travelers checks. How about savings accounts? These amounts are so quickly convertible into M1 that many economists consider them money too, part of a larger total called M2 that includes all of M1 plus all small denomination time deposits (bank CDs), savings accounts, and money market account balances. M2 then represents a form of money that is less “liquid” (less easily converted and spent) than M1. In addition to this definition, money is expected to satisfy three functions: serve as a medium of exchange, a store of value, and a unit of account. In this article, we will explore what Bitcoin is and why it has been so prevalent in the news of late. Further, we will apply the three functions of money to Bitcoin and discuss whether it should be considered a form of money. Some of the benefits and problems associated with Bitcoin will be discussed along with its future potential.

정승영

No abstract is available for this record.

홍도현, Kim Byung Il

No abstract is available for this record.