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Blockchain Abstraction Library
Gallovič, Ľubomír ; Ryšavý, Ondřej (referee) ; Veselý, Vladimír (advisor)
This thesis deals with cryptocurrencies and the underlying principles they are based on. It describes the blockchain technology and explores various cryptocurrencies that utilize it with the focus on their similarities and differences. The next part analyzes InsightAPI, the existing tool for real-time Bitcoin blockchain exploration. It then describes the proposed solution for the Ethereum blockchain explorer, highlights the implementation details, and shows results of its testing. The created tool allows the user to quickly gather information about desired blocks, users, and transactions of the Ethereum blockchain.
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Virtual Wallet Compatible with Cryptocurrency
Marušin, Marek ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
The purpose of this thesis is to identify differences between classical payment systems and cryptocurrencies. A paper also compares the most well-known cryptocurrencies and explains how they work. By analyzing the principles of cryptocurrencies focused mainly on the Ethereum, we can see how virtual wallets for these digital tokens can be implemented and how we can work with custom tokens. A demonstration of created virtual wallet for Ethereum and custom ERC20 tokens is shown. Implemented practical example using Python programming language covers principles as generating private and public keys with appropriate addresses, manipulation with tokens and transactions or providing tests.
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Selected Topics of Cryptocurrencies with Focus on Taxation of Income Received from This Asset Type
Malá, Ingrid ; Kopřiva, Jan (referee) ; Svirák, Pavel (advisor)
The thesis explains the main characteristics and cryptocurrency definition. The thesis also offers cryptocurrency awareness analysis of Czech respondents. As part of this thesis there are also described legal and tax environments in the Czech Republic. The thesis focuses on specifics of taxation of income from cryptocurrency transactions. When the tax liability arises, it submits proposals to which category does the income belong and it comprehensively describes the procedure for calculating the tax base and subsequent taxation. In the case of legal entities, it presents the basic procedures for dealing with cryptocurrencies in the company. It deals with the „de lege ferenda“ taxation of income.
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Cryptocurrencies and Their Trading Options
Kubík, Lubomír ; Dušková, Monika (referee) ; Luhan, Jan (advisor)
The bachelor thesis focuses on the development and formation of cryptocurrencies especially the most common cryptocurrency Bitcoin. It describes the principles of blockchain and decentralized currencies. It focuses on the comparison of individual kinds of cryptocurrencies which are compared from several points of view, such as their origin, the principle of their functioning and value. Furthermore the possibilities of acquiring and trading cryptocurrencies are analyzed and compared. These options include extraction, purchase through digital currency exchange and exchange trading. Individual solutions are compared in terms of their convenience for a particular user.
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The Profitability of Standard Trading Strategies in Cryptocurrency Markets
Duda, Miroslav ; Krištoufek, Ladislav (advisor) ; Brož, Václav (referee)
The thesis attempts to determine how strategies used for forecasting and trad- ing on foreign exchange and stock markets perform when applied to cryptocur- rency markets. The approaches explored are ARIMA, VAR, MA Crossover, and Granger Causality using gold prices and S&P 500. The currencies traded are Bitcoin, Ethereum, Binance Coin, and Basic Attention Token. The models are trained on logarithmically transformed and differenced time series composed of the currencies' daily and hourly closing prices. Applying these strategies mostly leads to ambiguous results, with MA Crossover generally performing better than VAR, which in turn performs better than ARIMA. However, every strategy was moderately successful for at least one of the currencies examined. Trading on the hourly dataset was negatively influenced by sudden price jumps. ARIMA and VAR perform better in the inter-bubble periods. No significant Granger causality was found. Keywords Cryptocurrency, Trading, Bitcoin, Ethereum, Binance Coin, Basic Attention Token, ARIMA, VAR, MA Crossover, Granger Causality Title The Profitability of Standard Trading Strategies in Cryptocurrency Markets Author's e-mail miroslav.duda11@gmail.com Supervisor's e-mail ladislav.kristoufek@fsv.cuni.cz
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Examining the relationships among cryptocurrencies using Google Trends
Heller, Michael ; Krištoufek, Ladislav (advisor) ; Džmuráňová, Hana (referee)
The topic of our thesis is the examination of the relationships among cryptocur- rencies using Google Trends. In our thesis, we concentrated on four cryptocur- rencies, namely: Bitcoin, Litecoin, Ethereum Classic and Ethereum. We obtained the data of daily opening prices, daily trading volumes and daily Google Trends queries in order to examine the relationships among the four cryptocurrencies. Applying the Vector autoregression model and Vector error correction model, we constructed four models. The first model contains only four time series of daily prices of cryptocurrencies. The second model is the first model enriched by the respective four time series of Google Trends queries. The third model contains the four time series of daily trading volumes of the four cryptocurrencies. The fourth model is the third model enriched by the four time series of Google Trends queries of respective cryptocurrencies. Then we applied the Impulse response analysis and the Forecast error variance decomposition in order to find some relationships among the variables. We found that there is some correlation among prices, volumes and Google Trends queries containing the names of the four cryptocurrencies. According to our results acquired by the Forecast error variance decomposition, in all our models, Bitcoin has the...
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Interplay between Bitcoin price and its mining difficulty
Ondruška, Daniel ; Krištoufek, Ladislav (advisor) ; Debatz, Laure (referee)
Cryptocurrencies are well known asset that almost everyone at least heard of. Some of these cryptocurrencies have all of its supply already in circulation, while others do not. Two biggest cryptocurrencies, Ethereum and Bitcoin, have their supply being increased every day through the process known as mining, which many never even heard of. This process and its interaction with price are the main topic of this thesis. Price and hash rate, which is good and flexible index of difficulty of mining, of Bitcoin and Ethereum are studied and it is shown, that there is an interplay among both currencies but also withing the currency itself.
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Cybercriminality in area of cryptocurrencies
Jucovič, Adam ; Gřivna, Tomáš (advisor) ; Bohuslav, Lukáš (referee)
(english) This thesis deals with cybercriminality in area of cryptocurrencies. The thesis first of all describes basic terms, sources of law and issues of jurisdictions in area. Furthermore it deals with delineation of selected crimes commited in connection with cryptocurrencies. Part of the thesis focuses on issues with anonymity and proving. Key words Cybercriminality, Cryptocurrencies, Computer Criminality
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Tax aspects of disposal of cryptocurrencies
Čech, Jakub ; Vybíral, Roman (advisor) ; Karfíková, Marie (referee)
Title: Tax aspects of disposal of cryptocurrencies This thesis aims to answer the selected questions from the legal and, above all, the tax- law framework. Cryptocurrencies are a fairly young phenomenon, which is still developing. They are mainly used as an alternative to state-recognized currencies or a specific investment instrument. Because of the significant profits that transactions can bring with them, the issue of determining related tax obligations is important. The work is divided into 4 basic parts. The first part deals with the general definition of the cryptocurrencies and other relevant institutes. The second part deals with personal income tax and the third part deals with value added tax. The final fourth part deals with the issue of the future development of cryptocurrencies regulation. In the first part, focus is placed on the general definition of cryptocurrencies within the rule of law, with emphasis on comparison with selected traditional institutes of financial law. Attention is also paid to the specific features of cryptocurrencies that are relevant in terms of tax administration and related tax duties. Considerable attention is also paid to the criminal law consequences that might arise in the event of non-compliance with tax obligations. At the end of this section, the...
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