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Cryptocurrency – a modern kind of money
Petrenec, Vojtěch ; Baumgartnerová, Alena (referee) ; Jašková, Jana (advisor)
Kryptoměna se stala známým fenoménem ve světě bankovních a elektronických plateb, ale pro širokou veřejnost je stále záhadou, a ne vše je vysvětleno tak, aby s ní mohl kdokoliv obchodovat. Tato práce se zaměřuje na kryptoměny. Studie se zaměřuje na původ kryptoměn, principy, na kterých jejich zabezpečení funguje, proč jsou jejich transakce nevysledovatelné a jak jsou tyto převody prováděny. Následně se práce zabývá tím, kde může majitel uchovávat své kryptoměny, jaké typy peněženek existují, čím se těžba kryptoměn zabývá a co lze jejím prostřednictvím získat. Jednotlivé kryptoměny jsou diskutovány ke konci práce, včetně jejich historie a které peněženky jsou vhodné pro každou minci. Dále se tato práce věnuje fiat měnám, včetně jejich historie a ekonomických funkcí, které plní. Nakonec jsou tyto ekonomické funkce aplikovány na kryptoměny. Cílem této práce je získat větší přehled o kryptoměnách, včetně toho, co jsou zač, jak fungují a jak s nimi zacházet.
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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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Decentralized E-Voting on Solana Blockchain
Hošala, Martin ; Očenášek, Pavel (referee) ; Homoliak, Ivan (advisor)
Táto práca bola zameraná na zistenie využiteľnosti Solana blockchainu pre hlasovací systém BBB-Voting a vytvorenie prototypu tohto systému na základe poskytnutých riešení pre Ethereum. Problém s Ethereom je jeho výkon - väčšie voľby by trvali týždne. Solana sľubuje omnoho vyššý výkon. Na vytvorenie výsledného riešenia bolo potrebné analyzovať systém Solana, BBB-Voting, navrhnúť BBB-Voting pre Solanu, implementovať a otestovať ho. Výsledný prototyp je implementovaný v jazyku Rust pomocou frameworku Anchor. Počas vývoja bolo zistené, že algoritmus, ktorý vrámci protokolu BBB-Voting slúži pre overovanie hlasov je príliš výpočetne náročný a preto kôli súčastnému limitu na Solane nie je možné systém nasadiť na mainnet. Avšak očakáva sa, že tento limit sa bude meniť a systém bude v budúcnosti môcť byť nasadený. V takom prípade sa hrubý odhad zrýchlenia oproti Etherovým náprotivkom pohybuje okolo 3000%. Cena hlasovania na Solane je taktiež rádovo nižšia. Vrámci práce bol vyvinutý aj front-end pre hlasovanie - single-page webová aplikácia vytvorená pomocou ReactJS.
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Virtual Currencies
Mlýnková, Veronika ; Sikora, Marek (referee) ; Zeman, Václav (advisor)
This bachelor thesis deals with the topic of virtual currencies based on the blockchain technology. The foundations of the cryptocurrency workings are explained on cryptocurrency Bitcoin, which is later described in a greater detail from technological point of view. In addition to the general workings of a bitcoin network, this thesis describes creation of bitcoin addresses, the composition of transactions and the way they are sign and verified. A broader view of cryptocurrencies is offered within the fourth chapter, with the classification into generations and explanation of terms coin, token and stable coin. Chapter Ethereum explains the meaning of smart contracts and decentralized applications. Within the thesis a laboratory task was performed, which describes the procedure for programming a simplified version of blockchain in Python. To summarize the discussed topic, an educational web application was created.
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Vliv vybraných proměnných na trh s kryptoměnami
Doležal, Daniel
Doležal, D. The impact of selected variables on the cryptocurrency market. Diploma thesis. Brno: Mendel University, 2023. The thesis deals with the selection of individual factors and the subsequent identification of whether or not these factors have an influence on the development of the price of Bitcoin. The variables are selected based on scientific articles that deal with this issue and subsequently are subjected to regression analysis. The analysis itself focuses on the period from the last Bitcoin halving, i.e. on those variables that could have potentially influenced the development of the price of our asset in the last approximately three years. The focus is on the general influence of explanatory variables that influence the price of Bitcoin, but also on a comparison of the significance and nature of the influence of individual determinants on the second largest cryptocurrency by market capitalization, Ethereum. The results of the work are critically evaluated with scientific articles and recommendations for investors are made based on the information obtained.
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Síťový a substituční efekt na kryptoměnových trzích
Vařejka, David
Vařejka, D. Network and substitution effect on cryptocurrency markets. Diploma thesis. Brno: Mendel University, 2023. This thesis examines the extent of substitution and network effects in the cryptocurrency market. These phenomena are investigated based on the relationships of individual cryptocurrency returns and other sentiment indicators. The theoreti-cal part of the thesis characterizes the network and substitution effects and further describes the consequences of their effects on the cryptocurrency market. The empirical part of the thesis is based on panel regression analysis with fixed effects. The dataset under study contains 31 cryptocurrencies for the period from the fourth quarter of 2017 to the first quarter of 2023. The selected data is weekly in nature. The results of the empirical analysis confirm the statistical significance of the included variables, the overall robustness of the model, and point to a long-lasting substitution effect in the cryptocurrency market.
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Využití technologie blockchain pro výpůjční systémy
Janečka, Martin
This thesis focuses on blockchain technology. It provides a systematic literature review that explores the use of blockchain in rental systems. As part of this thesis, several projects and solutions were analyzed. Based on the review, the thesis also contains the design and implementation of a proof-of concept blockchain solution of a rental system.
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Impact of total transaction fees on the price of Bitcoin and Ethereum
Černý, David ; Krištoufek, Ladislav (advisor) ; Hronec, Martin (referee)
The aim of this thesis is to explore the price dynamics of Bitcoin and Ethereum with special emphasis on the role of transaction fees, which can provide insight into network congestion and user behaviour, and may also reflect the future economic viability of these networks. Previous research has shown intertwin- ing relationships between variables and suggested possible endogeneity in a cryptoasset environment. For these purposes, a system of two simultaneous equations for transaction fees and price was developed and subsequently esti- mated using the 2SLS method. The analysis covers relationships from both long-term and short-term perspectives. It turns out that the price dynamics of both assets is determined by a diverse mix of fundamental, economic and spec- ulative factors, despite the narrative that the price of cryptoassets is primarily driven by speculative factors. Furthermore, in the context of the fee-price re- lationship, it turned out that the relationship is a priori that the price impacts the fees, however, at some intervals, the opposite relationship is also shown, which is rather an exception. An important contribution could be the finding of a stable positive effect of the total number of active addresses in Bitcoin on transaction fees, which might bring new insights to the...
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Application of fuzzy logic as a support for decision-making in financial market
Abrahám, Adam ; Šuňavcová, Nikola (referee) ; Janková, Zuzana (advisor)
This thesis focuses on the application of fuzzy logic in supporting of decision-making in financial markets, especially in cryptocurrency investment. Firstly, the theory of fuzzy logic and its various applications are comprehensively discussed. Subsequently, cryptocurrencies and their investment criteria are analyzed. Based on this analysis, a fuzzy system is proposed as a decision-making tool for cryptocurrency investment. Specifically, the fuzzy system enables the evaluation of the risk and return of the investment in a particular cryptocurrency. The implementation of the proposed system, using MS Excel and MathWorks MATLAB, is also described. The experimental results show that the proposed fuzzy system is an effective decision-making tool for cryptocurrency investment.
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Secure and Efficient State Preservation in Ethereum-Based Smart Contract Platforms
Eršek, Martin ; Perešíni, Martin (referee) ; Homoliak, Ivan (advisor)
Táto práca prezentuje riešenie problémov s uchovaním stavu v rámci Etherea. Na základe analýzy vnútorného fungovania Etherea a prečítania relevantnej literarúry boli adresované relevantné problémy. Proof-of-concept riešenie vykazuje sľubné výsledky ako je 33% redukcia vo veľkosti dôkazov členstva, ako aj takmer 50% redukciu v priemernom čase vykonávania transakcií v porovnaní s aktuálnym prístupom. Navyše, navrhované riešenie umožňuje efektívne paralelné spracovanie transakcií s viac ako 97% šancou bezkonfliktného vykonania 8 náhodných transferov natívnej meny. Potenciálna nadväzujúca práca zahŕňa implementáciu klienta schopného paralelného spracovávania transakcií do produkčného riešenia, ktoré rozšíri aktuálne možnosti manažmentu stavu v Ethereu.
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