The Paradoxes of Distributed Trust: Peer-To-Peer Architecture and User Confidence in Bitcoin Alexandre Mallard, Cécile Méadel, Francesca Musiani
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Cryptocurrencies Exploring the Application of Bitcoin As a New Payment Instrument
Cryptocurrencies Exploring the Application of Bitcoin as a New Payment Instrument By Shinnecock Partners in association with Sophia Bak, Jimmy Yang, Peter Shea, and Neil Liu About the Authors Shinnecock Partners undertook this study of cryptocurrencies with the authors to understand this revolutionary payment system and related technology, explore its disruptive potential, and assess the merits of investing in it. Shinnecock Partners is a 25 year old investment boutique with an especial focus on niche investments offering higher returns with less risk than more traditional investments in long equities and bonds. Sophia Bak is an analyst intern at Shinnecock Partners. She is an MBA candidate at UCLA Anderson School of Management with a focus on Finance. Prior to Anderson, she spent five years at Mirae Asset Global Investments, working in equity research, global business strategy, and investment development. She holds a B.S. in Business Administration from Carnegie Mellon University with concentration in Computing and Information Technology. Jimmy Yang is a third-year undergraduate student at UCLA studying Business Economics and Accounting. Peter Shea is a third-year undergraduate student at UCLA studying Mathematics, Economics and Statistics. Neil Liu is a third-year undergraduate student at UCLA studying Applied Mathematics and Business Economics. Acknowledgements We are grateful to the individuals who shared their time and expertise with us. We want to thank John Villasenor, UCLA professor of Electrical Engineering and Public Policy, Brett Stapper and Brian Lowrance from Falcon Global Capital, and Tiffany Wan and Max Hoblitzell from Deloitte Consulting LLP. We also want to recognize Tracy Williams and Steven Kroll for their thoughtful feedback and support. -
Retail 2.0: the Future of Shopping
RETAIL 2.0 This Report • The pandemic has seen a high-street downturn, as consumers move to e-commerce platforms. But whilst the high street may be down, it is most definitely not out • The post-COVID world provides retailers with the opportunity to renew and reinvent • OMG Futures sees a retail future where innovation is not just about wizardry and gadgetry – but also enhancing our experiences and serving our deeper needs • The Future of Shopping envisions a future where embracing and integrating with digital technologies whilst providing a unique human experience in-store can lead to a high street renaissance • This is not a report about e-commerce specifically. This is a report about the shopper of the future and what they will demand from their retail – in all its forms How it unfolds THE THE THE NOW WOW HOW The current state of The next decade in Implications for retail in 2020 retail businesses and brands WHERE WE ARE RIGHT NOW… UK Retail, December 2019 Slowest rate of 85,000 job 9169 store 350 CEO Online sales spending growth losses in retail closures replacements grew by 21% since 2010 Retail was already changing Source: Deloitte: Retail Trends 2020: Finding Purpose Through Challenge, Jan 2019 – Dec 2019 Then, the pandemic arrived… UK Retail, December 2020 Pre-pandemic online Amazon sales up 63% of consumers 36% of online shoppers sales: 20% of 40%. Announced said the way they increased frequency of In Sept, as a 12 month retail Now:30% of 7,000 more permanent obtain goods and online purchase during average, footfall for retail. -
Creation and Resilience of Decentralized Brands: Bitcoin & The
Creation and Resilience of Decentralized Brands: Bitcoin & the Blockchain Syeda Mariam Humayun A dissertation submitted to the Faculty of Graduate Studies in partial fulfillment of the requirements for the degree of Doctor of Philosophy Graduate Program in Administration Schulich School of Business York University Toronto, Ontario March 2019 © Syeda Mariam Humayun 2019 Abstract: This dissertation is based on a longitudinal ethnographic and netnographic study of the Bitcoin and broader Blockchain community. The data is drawn from 38 in-depth interviews and 200+ informal interviews, plus archival news media sources, netnography, and participant observation conducted in multiple cities: Toronto, Amsterdam, Berlin, Miami, New York, Prague, San Francisco, Cancun, Boston/Cambridge, and Tokyo. Participation at Bitcoin/Blockchain conferences included: Consensus Conference New York, North American Bitcoin Conference, Satoshi Roundtable Cancun, MIT Business of Blockchain, and Scaling Bitcoin Tokyo. The research fieldwork was conducted between 2014-2018. The dissertation is structured as three papers: - “Satoshi is Dead. Long Live Satoshi.” The Curious Case of Bitcoin: This paper focuses on the myth of anonymity and how by remaining anonymous, Satoshi Nakamoto, was able to leave his creation open to widespread adoption. - Tracing the United Nodes of Bitcoin: This paper examines the intersection of religiosity, technology, and money in the Bitcoin community. - Our Brand Is Crisis: Creation and Resilience of Decentralized Brands – Bitcoin & the Blockchain: Drawing on ecological resilience framework as a conceptual metaphor this paper maps how various stabilizing and destabilizing forces in the Bitcoin ecosystem helped in the evolution of a decentralized brand and promulgated more mainstreaming of the Bitcoin brand. ii Dedication: To my younger brother, Umer. -
New Strategies for the Platform Economy
SPECIAL COLLECTION STRATEGY New Strategies for the Platform Economy To reap the rewards and avoid the risks, companies exploring a platform business model must look carefully at their partnerships and growth strategy. Brought to you by: SPRING 2021 NEW STRATEGIES FOR THE PLATFORM ECONOMY SPECIAL REPORT 1 9 17 Competing on How Healthy Is Your Platform Scaling, Platforms Business Ecosystem? Fast and Slow THE DOMINANT DIGITAL PLATFORMS are now among the world’s most phases. At each stage, there are specific early valuable — and most powerful — companies, leaving a huge swath of organizations forced indicators to look for that point to potential to play by their rules. In this new competitive environment, businesses need new ways to failure. Tracking the appropriate metrics gain advantage despite platforms’ constraints and market clout. And businesses seeking to for each stage and being alert to red flags create successful platform ecosystems find that while the rewards can be great, the helps businesses pivot to a new approach or likelihood of failure is high. This special report examines the challenges faced by both limit their losses. platform owners and participants. Platforms aiming for market dominance have typically prioritized rapid growth. The asymmetries in power and infor- attention from U.S. and European regulators, However, Max Büge and Pinar Ozcan have mation between platform owners and the whose scrutiny of dominant platforms’ found that scaling quickly is not the right businesses reliant on them have implications practices may lead to shifts in the prevailing strategy in all circumstances: Pursuing fast for the traditional levers of competitive balance of power. -
A Solution Towards Eliminating Transaction Malleability in Bitcoin
J Inf Process Syst, Vol.14, No.4, pp.837~850, August 2018 ISSN 1976-913X (Print) https://doi.org/10.3745/JIPS.03.0101 ISSN 2092-805X (Electronic) A Solution towards Eliminating Transaction Malleability in Bitcoin Ubaidullah Rajput*, Fizza Abbas*, and Heekuck Oh** Abstract Bitcoin is a decentralized crypto-currency, which is based on the peer-to-peer network, and was introduced by Satoshi Nakamoto in 2008. Bitcoin transactions are written by using a scripting language. The hash value of a transaction’s script is used to identify the transaction over the network. In February 2014, a Bitcoin exchange company, Mt. Gox, claimed that they had lost hundreds of millions US dollars worth of Bitcoins in an attack known as transaction malleability. Although known about since 2011, this was the first known attack that resulted in a company loosing multi-millions of US dollars in Bitcoins. Our reason for writing this paper is to understand Bitcoin transaction malleability and to propose an efficient solution. Our solution is a softfork (i.e., it can be gradually implemented). Towards the end of the paper we present a detailed analysis of our scheme with respect to various transaction malleability-based attack scenarios to show that our simple solution can prevent future incidents involving transaction malleability from occurring. We compare our scheme with existing approaches and present an analysis regarding the computational cost and storage requirements of our proposed solution, which shows the feasibility of our proposed scheme. Keywords Crypto-currency, Bitcoin, Transaction Malleability 1. Introduction After its introduction in 2008 by Satoshi Nakamoto, the Bitcoin crypto-currency has gained significant popularity amongst other various crypto-currencies. -
The Dealership of Tomorrow 2.0: America’S Car Dealers Prepare for Change
The Dealership of Tomorrow 2.0: America’s Car Dealers Prepare for Change February 2020 An independent study by Glenn Mercer Prepared for the National Automobile Dealers Association The Dealership of Tomorrow 2.0 America’s Car Dealers Prepare for Change by Glenn Mercer Introduction This report is a sequel to the original Dealership of Tomorrow: 2025 (DOT) report, issued by NADA in January 2017. The original report was commissioned by NADA in order to provide its dealer members (the franchised new-car dealers of America) perspectives on the changing automotive retailing environment. The 2017 report was intended to offer “thought starters” to assist dealers in engaging in strategic planning, looking ahead to roughly 2025.1 In early 2019 NADA determined it was time to update the report, as the environment was continuing to shift. The present document is that update: It represents the findings of new work conducted between May and December of 2019. As about two and a half years have passed since the original DOT, focused on 2025, was issued, this update looks somewhat further out, to the late 2020s. Disclaimers As before, we need to make a few things clear at the outset: 1. In every case we have tried to link our forecast to specific implications for dealers. There is much to be said about the impact of things like electric vehicles and connected cars on society, congestion, the economy, etc. But these impacts lie far beyond the scope of this report, which in its focus on dealerships is already significant in size. Readers are encouraged to turn to academic, consulting, governmental and NGO reports for discussion of these broader issues. -
Geraszimov-Doktrína – Egy Másik Megvilágításban
KATONAI NEMZETBIZTONSÁGI SZOLGÁLAT XVI. évfolyam 3–4. szám FELDERÍTŐ SZEMLE ALAPÍTVA: 2002 BUDAPEST 2017 A Katonai Nemzetbiztonsági Szolgálat tudományos-szakmai folyóirata Felelős kiadó Kovács József altábornagy, főigazgató Szerkesztőbizottság Elnök: Dr. Béres János vezérőrnagy Tagok: Dezső Sándor vezérőrnagy Dr. Magyar István ny. dandártábornok Dr. Tömösváry Zsigmond ny. dandártábornok Deák Anita alezredes Dr. Fürjes János alezredes Háry Szabolcs ezredes Dr. Magyar Sándor ezredes Dr. Tóth Sándor alezredes Dr. Vida Csaba alezredes Felelős szerkesztő: Deák Anita alezredes Olvasószerkesztő: Gál Csaba ny. ezredes Tördelőszerkesztő: Tóth Krisztina tzls. HU ISSN 1588-242X TARTALOM BIZTONSÁGPOLITIKA HOLECZ JÓZSEF ALEZREDES A GERASZIMOV-DOKTRÍNA – EGY MÁSIK MEGVILÁGÍTÁSBAN ...................................................... 5 BERTALAN DÁVID OGY. ALEZREDES A BIZTONSÁGI SZEKTOR SPECIÁLIS VONÁSAI .......................... 28 MEZŐ ANDRÁS ALEZREDES A DOKTRÍNAFEJLESZTÉS NEMZETKÖZI TAPASZTALATAI ... 45 HEGYI ÁGNES SZÁZADOS TERRORIZMUS A SZÁHEL-ÖVEZETBEN ....................................... 74 DR. GERENCSÉR ÁRPÁD KÖZÉP-ÁZSIAI SZÉLSŐSÉGES MOZGALMAK MEGJELENÉSI FORMÁI ÉS JELENTŐSÉGE .................................. 87 HÍRSZERZÉS – FELDERÍTÉS KOÓS GÁBOR NY. ALEZREDES – PROF. DR. SZTERNÁK GYÖRGY NY. EZREDES A FEGYVERES KÜZDELEM JELLEMZŐI KUTATÁSÁNAK FONTOSSÁGA, A HÍRSZERZÉS ÉS A FELDERÍTÉS JELENTŐSÉGE ..................... 97 DR. VIDA CSABA ALEZREDES AZ ELEMZŐ-ÉRTÉKELŐ MUNKA TERMÉKEI – NEMZETBIZTONSÁGI TÁJÉKOZTATÓK KÉSZÍTÉSE .............. 112 -
A Probe Survey of Bitcoin Transactions Through Analysis of Advertising in an On-Line Discussion Forum
Acta Informatica Pragensia, 2019, 8(2), 112–131 DOI: 10.18267/j.aip.127 Original Article A Probe Survey of Bitcoin Transactions Through Analysis of Advertising in an On-Line Discussion Forum Zoltan Ban 1, Jan Lansky 1, Stanislava Mildeova 1, Petr Tesar 1 Abstract Cryptocurrencies have become a major phenomenon in recent years. For IT, a breakthrough is both the cryptocurrency itself as a commodity and the technology that cryptocurrency development has brought. The article focuses on the bitcoin cryptocurrency as the most important cryptocurrency. A relatively unexplored topic is what goods or services are purchased for bitcoins. To track what bitcoins are spent on, it is necessary to look for places that are dedicated to trading cryptocurrencies. The bitcointalk.org forum was chosen as a source for our data mining. The aim of the article is to find an answer to the research question: What are bitcoins on the discussion forum bitcointalk.org planned to be spent on? As part of the research, an application was developed using a PHP script to gather information from the discussion forum (bitcointalk.org). There is some evidence which suggests what types of products or services people spend cryptocurrencies on. This research has proven that cryptocurrencies are used to buy and sell goods or services in the electronics and computer world segments. Today, these segments are widespread, which may speed up the integration of cryptocurrencies into everyday life. This applies, of course, only if the risks associated with cryptocurrencies do not increase. Keywords: Cryptocurrency, Bitcoin, On-Line Advertisement, Text Mining, Cybersecurity, Discussion Forum. -
Bitcoin and Money Laundering: Mining for an Effective Solution
Indiana Law Journal Volume 89 Issue 1 Article 13 Winter 2014 Bitcoin and Money Laundering: Mining for an Effective Solution Danton Bryans Indiana University Maurer School of Law, [email protected] Follow this and additional works at: https://www.repository.law.indiana.edu/ilj Part of the Internet Law Commons, and the Law and Economics Commons Recommended Citation Bryans, Danton (2014) "Bitcoin and Money Laundering: Mining for an Effective Solution," Indiana Law Journal: Vol. 89 : Iss. 1 , Article 13. Available at: https://www.repository.law.indiana.edu/ilj/vol89/iss1/13 This Note is brought to you for free and open access by the Law School Journals at Digital Repository @ Maurer Law. It has been accepted for inclusion in Indiana Law Journal by an authorized editor of Digital Repository @ Maurer Law. For more information, please contact [email protected]. Bitcoin and Money Laundering: Mining for an Effective Solution * DANTON BRYANS INTRODUCTION Technology forges ahead at a rapid pace, whether we like it or not. Criminals recognize this inevitability and use technological improvements to advance their craft,1 committing crimes from half a world away in real time. Meticulous criminals also use technological advancements to distance themselves from their illegal activities and profits through use of virtual banking and electronic money transfer systems, which allow criminals to buy, sell, and exchange goods without any physical interaction. Though such services use digital logs that serve to identify a sender and a receiver’s digital identities, criminals possess the means to obfuscate their digital identity by simply spoofing their Internet Protocol address or by using another individual’s account, essentially making their activities untraceable. -
Download Criminal Complaint Filed in the Eastern District of California
AO 91 (Rev. 11/11) Criminal Complaint UNITED STATES DISTRICT COURT for the Eastern District of California United States of America ) V. ) MARCOS PAULO DE OLIVEIRA ) Case No. ANNIBALE, ) aka "Med3lin," ) aka "Med3lln," ) aka "Med3lln WSM" ) Defendant(s) CRIMINAL COMPLAINT I, the complainant in this case, state that the following is true to the best of my knowledge and belief. On or about the date( s) of October 2017 through April 2019__ in the county of Sacramento in the Eastern District of California , and elsewhere, the defendant(s) violated: Code Section Offense Description 21 U.S.C. §§ 841 and 846 Distribution and Conspiracy to Distribute Controlled Substances 18 U.S.C. §§ 1956 and 1957 Money Laundering This criminal complaint is based on these facts: (see attachment) IX! Continued on the attached sheet. -j- ;1 ·) / , / l 1 - • / L ',;;;_ . _/__I-- / Complainant's signature JAY D. DIAL, Jr., Special Agent Dl'llg Enforcem~_11t Ad111inistration Printed name and title Sworn to before me and signed in my presence. ;]t "-" ' Date: l.2 _/,_ I ---=- (.___ ,,--- "'-~ Judge 's signature City and state: Sacramento, CA Allls__on Claire, U_.§~ Magi~trate__.J__udge Printed name and title AO 91 (Rev. 11/11) Criminal Complaint UNITED STATES DISTRICT COURT for the Eastern District of California United States of America ) V. ) MARCOS PAULO DE OLIVEIRA ) Case No. ANNIBALE, ) aka "Med3lin," ) aka "Med3l1n," ) aka "Med3lln_WSM" ) Defendant(s) CRIMINAL COMPLAINT I, the complainant in this case, state that the following is true to the best of my knowledge and belief. On or about the date(s) of ~tober 20 I 7 through April 2019_ in the county of . -
Disruptive Business Models – Challenges and Opportunities for Tax Administrations 3 C O N T E N T
DISRUPTIVE BUSINESS MODELS CHALLENGES AND OPPORTUNITIES FOR TAX ADMINISTRATIONS WWW.IOTA-TAX.ORG Published by IOTA, 2017, Budapest Editorial Board: Miguel Silva Pinto, Neil Sawyer, Ágnes Kővágó Address: Wesselényi utca 16., H-1077, Budapest, Hungary Phone: +36 (1) 478-30-30, Email: [email protected] ISBN 978-615-00-0275-0 WWW.IOTA-TAX.ORG FOREWORD Dear Readers, This publication is founded on the presentations and debates held during the technical session of the 21st IOTA General Assembly, which took place in Kyiv, on 28-30 June 2017. The working programme addressed the changes in the economy driven by technology and multiplication of new and innovative business models. The assembly focused on how this trend is causing both challenges and opportunities for tax administrations to re-invent themselves in order to keep pace with the present and anticipate the future. The book’s structure follows the technical sessions of the assembly and the articles have been prepared by many of the speakers and include not only what they have presented but their further thoughts on the subject as well. Pekka Ruuhonen, Giorgi Tabuashvili and Gerry Harrahill, Commissioners from the Finnish, Georgian and Irish Tax Administrations provide their insights on the strategies their organisations are following to ensure the supply of better services to their taxpayers and to tackle the challenges of digital business models. Chiara Putzolu, Dirk Dierickx and Alan Carter, from the Italian, Belgian and UK’s administrations offer an insight into their country’s compliance models and methodologies to address sharing/collaborative businesses.JB Hillman from Vertex explains the potential of disruptive technologies to improve the effectiveness of tax administrations. -
Transparent and Collaborative Proof-Of-Work Consensus
StrongChain: Transparent and Collaborative Proof-of-Work Consensus Pawel Szalachowski, Daniël Reijsbergen, and Ivan Homoliak, Singapore University of Technology and Design (SUTD); Siwei Sun, Institute of Information Engineering and DCS Center, Chinese Academy of Sciences https://www.usenix.org/conference/usenixsecurity19/presentation/szalachowski This paper is included in the Proceedings of the 28th USENIX Security Symposium. August 14–16, 2019 • Santa Clara, CA, USA 978-1-939133-06-9 Open access to the Proceedings of the 28th USENIX Security Symposium is sponsored by USENIX. StrongChain: Transparent and Collaborative Proof-of-Work Consensus Pawel Szalachowski1 Daniel¨ Reijsbergen1 Ivan Homoliak1 Siwei Sun2;∗ 1Singapore University of Technology and Design (SUTD) 2Institute of Information Engineering and DCS Center, Chinese Academy of Sciences Abstract a cryptographically-protected append-only list [2] is intro- duced. This list consists of transactions grouped into blocks Bitcoin is the most successful cryptocurrency so far. This and is usually referred to as a blockchain. Every active pro- is mainly due to its novel consensus algorithm, which is tocol participant (called a miner) collects transactions sent based on proof-of-work combined with a cryptographically- by users and tries to solve a computationally-hard puzzle in protected data structure and a rewarding scheme that incen- order to be able to write to the blockchain (the process of tivizes nodes to participate. However, despite its unprece- solving the puzzle is called mining). When a valid solution dented success Bitcoin suffers from many inefficiencies. For is found, it is disseminated along with the transactions that instance, Bitcoin’s consensus mechanism has been proved to the miner wishes to append.