Results 51 to 60 of about 70,553 (202)
Data mining for detecting Bitcoin Ponzi schemes
, 2018 Soon after its introduction in 2009, Bitcoin has been adopted by cyber-criminals, which rely on its pseudonymity to implement virtually untraceable scams. One of the typical scams that operate on Bitcoin are the so-called Ponzi schemes.
Bartoletti, Massimo +2 more
core +1 more source
Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions
Canadian Journal of Statistics, EarlyView.Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni +2 more
wiley +1 more source
Direito & TI, 2016 A tecnologia proposta por Satoshi Nakamoto em 2008 no artigo intitulado "Bitcoin: A Peer-to-Peer Electronic Cash System", é um sistema de pagamentos com base em uma moeda puramente virtual e criptografada que vem provocando uma profunda reflexão sobre a política monetária mundial.
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Social signals and algorithmic trading of Bitcoin
, 2015 The availability of data on digital traces is growing to unprecedented sizes, but inferring actionable knowledge from large-scale data is far from being trivial.
Garcia, David, Schweitzer, Frank
core +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Blockchain technology has emerged as a potential disruptor in non‐financial reporting practices for firms to publicly report their social and environmental impact with its promise of immutability and decentralization. In this context, this study employs a bibliometric analysis to explore the scientific advancements of blockchain applications ...
Nurgul Aiupova +2 more
wiley +1 more source
Majority is not Enough: Bitcoin Mining is Vulnerable
, 2013 The Bitcoin cryptocurrency records its transactions in a public log called the blockchain. Its security rests critically on the distributed protocol that maintains the blockchain, run by participants called miners.
Eyal, Ittay, Sirer, Emin Gun
core +1 more source
Intraday Functional PCA Forecasting of Cryptocurrency Returns
Journal of Forecasting, EarlyView.ABSTRACT We study the functional PCA (FPCA) forecasting method in application to functions of intraday returns on Bitcoin. We show that improved interval forecasts of future return functions are obtained when the conditional heteroscedasticity of return functions is taken into account.
Joann Jasiak, Cheng Zhong
wiley +1 more source
EnergiesThis study investigates the asymmetric impacts of Bitcoin prices on Bitcoin energy consumption. Two series are shown to be chaotic and non-linear using the BDS Independence test.
Kais Tissaoui +4 more
doaj +1 more source
Bitcoin: a Money-like Informational Commodity [PDF]
, 2014 The question "what is Bitcoin" allows for many answers depending on the objectives aimed at when providing such answers. The question addressed in this paper is to determine a top-level classification, or type, for Bitcoin.
Bergstra, Jan A., Weijland, Peter
core +2 more sources
International Journal of Finance &Economics, EarlyView.ABSTRACT This paper examines the impact of regulatory controls on Bitcoin's excess returns and volatility. The paper innovates by proxying changes in the regulatory environment using global Google search volume intensity data. The generated regulatory indices accurately identify episodes of regulatory tightening within cryptocurrency markets.
Robert Mullings
wiley +1 more source