A systematic literature review of the tension between the GDPR and public blockchain systems by Rahime Belen-Saglam, Enes Altuncu, Yang Lu, Shujun Li

“…Blockchain technology has been rapidly growing since Bitcoin was invented in 2008. The most common type of blockchain system, public (permissionless) blockchain system, has some unique features that lead to a tension with the European Union’s General Data Protection Regulation (GDPR) and other similar data protection laws. …”
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Application of Deep Learning Methods to Forecast Changes in Short-Term Exchange Rate Trends by Vasily Derbentsev, Vitalii Bezkorovainyi, Iryna Luniak

“…Forecast calculations of the dynamics of quotations of the euro/dollar currency pair and the most capitalised cryptocurrency – bitcoin/dollar are carried out using daily, four-hour, and hourly observations. …”
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The Shortest Verification Path of the MHT Scheme for Verifying Distributed Data by Daeyoub Kim, Jihoon Lee

“…NDN (named-data networking) and Bitcoin utilize MHT to verify transmitted data. However, a data authentication scheme based on the MHT has an inefficient factor that repeatedly computes the same node values of the MHT and are repeatedly computed. …”
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Аналіз і обґрунтування використання наявних блокчейн-рішень для захисту цифрових активів by Glib Tereshchenko, Iryna Kyrychenko

“…У статті розв’язуються такі завдання: розгляд сучасних блокчейн-технологій та їх ролі в забезпеченні безпеки цифрових активів; детальний аналіз популярних блокчейн-протоколів, зокрема Bitcoin, Ethereum та Hyperledger Fabric, з огляду на їх захищеність від різних видів кіберзагроз і атак. …”
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СИСТЕМИ УПРАВЛІННЯ НАВЧАННЯМ НА БЛОКЧЕЙНІ by Valerii Yalanetskyi

“…В контексті розвитку світової освітньої сфери із урахуванням сучасних трендів та викликів, в умовах трансформації соціальних послуг та сервісів до цифрових форм, актуальним дослідженням є пошук ідей, концепцій, стартапів, пілотних проєктів та особливостей запровадження технології блокчейн в освіту. Перший блокчейн Bitcoin проєктувався як надзвичайно безпечна та надійна інформаційна мережа для фінансового сектору, де зберігання та передавання ціннісних активів – основний функціонал. …”
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Speed vs. efficiency: A framework for high-frequency trading algorithms on FPGA using Zynq SoC platform by Abbas Ali, Abdullah Shah, Azaz Hassan Khan, Malik Umar Sharif, Zaka Ullah Zahid, Rabia Shahid, Tariqullah Jan, Mohammad Haseeb Zafar

“…Latency evaluation is conducted for Bitcoin and Ethereum within a single-day timeframe, utilizing the Xilinx Zynq-7000 programmable SoC XC7Z020-CLG484-1 platform.Additionally, various hardware/software (HW/SW) partitioning strategies are explored to leverage the flexibility of software alongside the performance advantages of hardware via the Zynq SoC platform. …”
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Investments: classic instruments of the stock exchange or cryptocurrency by N. Grebeniuk, A. Baklanova

“…The article analyzes the dynamics of growth of the total amount of shares on the New York Stock Exchange and the dynamics of growth and decline of the price of one bitcoin in recent years. The article also analyzes the changes in the Ukrainian stock exchange over the past three years and explains how the situation has developed in the world and separately in the country affects investment and the state of the main joint-stock companies of Ukraine. …”
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A Blockchain Solution for Securing Real Property Transactions: A Case Study for Serbia by Goran Sladić, Branko Milosavljević, Siniša Nikolić, Dubravka Sladić, Aleksandra Radulović

“…The origins of digital money and blockchain technology goes back to the 1980s, but in the last decade, the blockchain technology gained large popularity in the financial sector with the appearance of cryptocurrencies such as Bitcoin. However, recently, many other fields of application have been recognized, particularly with the development of smart contracts. …”
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Implementation of a Secure Storage Using Blockchain for PCA-FRF Sensor Data of Plate-Like Structures by Meisam Gordan, Pei Yi Siow, Ahmed Farouk Deifalla, Zhi Chao Ong, Zubaidah Ismail, Khoo Shin Yee

“…In general, Secure Hash Algorithm (SHA) is one of the most practical hash functions with efficient performance which has been employed in Bitcoin. Therefore, in this research, SHA-256 is considered to generate the hash for each block. …”
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Diabetic Retinopathy Detection: A Blockchain and African Vulture Optimization Algorithm-Based Deep Learning Framework by Posham Uppamma, Sweta Bhattacharya

“…Blockchain technology has gained immense momentum in the present era of information and digitalization and is likely to gain extreme popularity among the next generation, with diversified applications that spread far beyond cryptocurrencies and bitcoin. The application of blockchain technology is prominently observed in various spheres of social life, such as government administration, industries, healthcare, finance, and various other domains. …”
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Evaluating Cryptocurrency Market Risk on the Blockchain: An Empirical Study Using the ARMA-GARCH-VaR Model by Yongrong Huang, Huiqing Wang, Zhide Chen, Chen Feng, Kexin Zhu, Xu Yang, Wencheng Yang

“…This study utilizes the Autoregressive Moving Average (ARMA) model combined with the Generalized Autoregressive Conditionally Heteroscedastic (GARCH) model to analyze the volatility of three major cryptocurrencies—Bitcoin (BTC), Ethereum (ETH), and Binance Coin (BNB)—over a period from January 1, 2017, to October 29, 2022. …”
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Less Is More: Understanding Network Bias in Proof-of-Work Blockchains by Yifan Mao, Shaileshh Bojja Venkatakrishnan

“…There has been a significant increase in profit in mining blocks. For instance, Bitcoin miners currently receive over USD 200,000 per mined block. …”
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Fast Popularity Value Calculation of Virtual Cryptocurrency Trading Stage Based on Machine Learning by Tong Zhu, Tong Zhu, Chenyang Liao, Ziyang Zhou, Xinyu Li, Qingfu Zhang

“…Since the launch of the first virtual cryptocurrency bitcoin in 2009, it has developed rapidly worldwide. …”
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Is There an Asymmetric Relationship between Economic Policy Uncertainty, Cryptocurrencies, and Global Green Bonds? Evidence from the United States of America by Aamir Aijaz Syed, Farhan Ahmed, Muhammad Abdul Kamal, Assad Ullah, Jose Pedro Ramos-Requena

“…Likewise, the study also confirms a bidirectional relationship between bitcoins and green bonds. A positive shock in bitcoin increases the performance of green bonds and vice versa. …”
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A Review of the Fractal Market Hypothesis for Trading and Market Price Prediction by Jonathan Blackledge, Marc Lamphiere

“…A short case study is presented which reports on the use of this approach to forecast Bitcoin exchange rate values.…”
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E-MONEY FROM THE TECHNOLOGICAL POINT OF VIEW by N. N. Kolosovskaya

“…The future legislation should also pay attention to the Internet sites that accept bitcoins as a means of payment, and define the legal status of subjects involved in civil circulation. …”
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Deep learning approaches for MIMO time-series analysis by Fachrul Kurniawan, Sarina Sulaiman, Siaka Konate, Modawy Adam Ali Abdalla

“…The analysis is conducted on a dataset comprising the stock price of Bitcoin. The dataset consists of 2950 rows from December 2017 to December 2021. …”
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A Novel Decentralized Blockchain Architecture for the Preservation of Privacy and Data Security against Cyberattacks in Healthcare by Ajitesh Kumar, Akhilesh Kumar Singh, Ijaz Ahmad, Pradeep Kumar Singh, Anushree, Pawan Kumar Verma, Khalid A. Alissa, Mohit Bajaj, Ateeq Ur Rehman, Elsayed Tag-Eldin

“…The paper introduces a novel blockchain mechanism for secure healthcare sector data management, which reduces the communicational and computational overhead costs compared to the existing bitcoin network and the lightweight blockchain architecture. …”
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Overview of blockchain assets theft attacks and defense technology by Beiyuan YU, Shanyao REN, Jianwei LIU

“…Since Satoshi Nakamoto’s introduction of Bitcoin as a peer-to-peer electronic cash system, blockchain technology has been developing rapidly especially in the fields of digital assets transferring and electronic currency payments.Ethereum introduced smart contract code, giving it the ability to synchronize and preserve the execution status of smart contract programs, automatically execute transaction conditions and eliminate the need for intermediaries.Web3.0 developers can use Ethereum’s general-purpose programmable blockchain platform to build more powerful decentralized applications.Ethereum’s characteristics, such as central-less control, public and transparent interaction data guaranteed by smart contracts, and user-controlled data, have attracted more attentions.With the popularization and application of blockchain technology, more and more users are storing their digital assets on the blockchain.Due to the lack of regulatory and governance authority, public chain systems such as Ethereum are gradually becoming a medium for hackers to steal digital assets.Generally, fraud and phishing attacks are committed using blockchain to steal digital assets held by blockchain users.This article aims to help readers develop the concept of blockchain asset security and prevent asset theft attacks implemented using blockchain at the source.The characteristics and implementation scenarios of various attacks were effectively studied by summarizing the asset theft attack schemes that hackers use in the blockchain environment and abstracting research methods for threat models.Through an in-depth analysis of typical attack methods, the advantages and disadvantages of different attacks were compared, and the fundamental reasons why attackers can successfully implement attacks were analyzed.In terms of defense technology, defense schemes were introduced such as targeted phishing detection, token authorization detection, token locking, decentralized token ownership arbitration, smart contract vulnerability detection, asset isolation, supply chain attack detection, and signature data legitimacy detection, which combine attack cases and implementation scenarios.The primary process and plans for implementation of each type of defense plan were also given.And then it is clear which protective measures can protect user assets in different attack scenarios.…”
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DIGITAL CURRENCIES, SWOT ANALYSIS by Kjartan Sigurðsson, Grétar Þór Eyþórsson, Helga Kristjánsdóttir

“…The paper highlights the increased international trade and discussion in recent years of digital currencies, also known as virtual currencies or cryptocurrencies, including the bilateral trade coin bitcoin (BTC). Scholars have emphasised the need to consider different preconditions, focusing primarily on domestic perspectives of payment intermediation within individual countries. …”
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