keyword
MENU ▼
Read by QxMD icon Read
search

Bitcoin

keyword
https://www.readbyqxmd.com/read/30118501/evolutionary-dynamics-of-cryptocurrency-transaction-networks-an-empirical-study
#1
Jiaqi Liang, Linjing Li, Daniel Zeng
Cryptocurrency is a well-developed blockchain technology application that is currently a heated topic throughout the world. The public availability of transaction histories offers an opportunity to analyze and compare different cryptocurrencies. In this paper, we present a dynamic network analysis of three representative blockchain-based cryptocurrencies: Bitcoin, Ethereum, and Namecoin. By analyzing the accumulated network growth, we find that, unlike most other networks, these cryptocurrency networks do not always densify over time, and they are changing all the time with relatively low node and edge repetition ratios...
2018: PloS One
https://www.readbyqxmd.com/read/30113977/fibrinogen-concentrate-is-it-standard-currency-or-bitcoin-in-bleeding-management
#2
Reney A Henderson, Michael A Mazzeffi, Kenichi A Tanaka
No abstract text is available yet for this article.
September 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/30110420/committing-to-quantum-resistance-a-slow-defence-for-bitcoin-against-a-fast-quantum-computing-attack
#3
I Stewart, D Ilie, A Zamyatin, S Werner, M F Torshizi, W J Knottenbelt
Quantum computers are expected to have a dramatic impact on numerous fields due to their anticipated ability to solve classes of mathematical problems much more efficiently than their classical counterparts. This particularly applies to domains involving integer factorization and discrete logarithms, such as public key cryptography. In this paper, we consider the threats a quantum-capable adversary could impose on Bitcoin, which currently uses the Elliptic Curve Digital Signature Algorithm (ECDSA) to sign transactions...
June 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29739758/bitcoin-technology-could-take-a-bite-out-of-nhs-data-problem
#4
Stephen Armstrong
No abstract text is available yet for this article.
May 8, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29542719/ai-researchers-embrace-bitcoin-technology-to-share-medical-data
#5
COMMENT
Amy Maxmen
No abstract text is available yet for this article.
March 15, 2018: Nature
https://www.readbyqxmd.com/read/29420512/bitcoin-s-alarming-carbon-footprint
#6
LETTER
Spyros Foteinis
No abstract text is available yet for this article.
February 8, 2018: Nature
https://www.readbyqxmd.com/read/29395209/endoscopic-mucosal-resection-the-new-gold-standard-or-the-bitcoin-of-the-present
#7
EDITORIAL
Mark D Iannettoni
No abstract text is available yet for this article.
May 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29291057/evolutionary-dynamics-of-the-cryptocurrency-market
#8
Abeer ElBahrawy, Laura Alessandretti, Anne Kandler, Romualdo Pastor-Satorras, Andrea Baronchelli
The cryptocurrency market surpassed the barrier of $100 billion market capitalization in June 2017, after months of steady growth. Despite its increasing relevance in the financial world, a comprehensive analysis of the whole system is still lacking, as most studies have focused exclusively on the behaviour of one (Bitcoin) or few cryptocurrencies. Here, we consider the history of the entire market and analyse the behaviour of 1469 cryptocurrencies introduced between April 2013 and May 2017. We reveal that, while new cryptocurrencies appear and disappear continuously and their market capitalization is increasing (super-)exponentially, several statistical properties of the market have been stable for years...
November 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29257809/the-world-bitcoin-created
#9
John Pavlus
No abstract text is available yet for this article.
December 19, 2017: Scientific American
https://www.readbyqxmd.com/read/29016974/blockchain-distributed-ledger-technologies-for-biomedical-and-health-care-applications
#10
REVIEW
Tsung-Ting Kuo, Hyeon-Eui Kim, Lucila Ohno-Machado
Objectives: To introduce blockchain technologies, including their benefits, pitfalls, and the latest applications, to the biomedical and health care domains. Target Audience: Biomedical and health care informatics researchers who would like to learn about blockchain technologies and their applications in the biomedical/health care domains. Scope: The covered topics include: (1) introduction to the famous Bitcoin crypto-currency and the underlying blockchain technology; (2) features of blockchain; (3) review of alternative blockchain technologies; (4) emerging nonfinancial distributed ledger technologies and applications; (5) benefits of blockchain for biomedical/health care applications when compared to traditional distributed databases; (6) overview of the latest biomedical/health care applications of blockchain technologies; and (7) discussion of the potential challenges and proposed solutions of adopting blockchain technologies in biomedical/health care domains...
November 1, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28714815/an-introduction-to-the-blockchain-and-its-implications-for-libraries-and-medicine
#11
Matthew B Hoy
The blockchain is a relatively new technology used to verify and store transaction records for online cryptocurrencies like Bitcoin. The system is redundant and distributed, making it difficult for transactions to be rescinded, duplicated, or faked. Beyond online currencies, the blockchain has potential uses in health care, education, and many other fields. This column will briefly describe what the blockchain is and how it is being used, potential future uses that may be of interest to librarians and medical practitioners, and some of the problems with the system...
July 2017: Medical Reference Services Quarterly
https://www.readbyqxmd.com/read/28649110/bitcoin-and-potos%C3%A3-silver-historical-perspectives-on-cryptocurrency
#12
Zac Zimmer
Bitcoin, the digital cryptocurrency, has been celebrated as the future of money on the Internet. Although Bitcoin does present several forward-looking innovations, it also integrates a very old concept into its digital architecture: the mining of precious metals. Even though Bitcoin explicitly invokes mining as a metaphor and gold as an example for understanding the cryptocurrency, there has been little critical work on the connections between Bitcoin and previous metalist currency regimes. The following essay proposes a historical comparison with colonial South American silver mining and the global currency regime based on the New World silver peso it created as a way to interrogate Bitcoin...
2017: Technology and Culture
https://www.readbyqxmd.com/read/28498843/when-bitcoin-encounters-information-in-an-online-forum-using-text-mining-to-analyse-user-opinions-and-predict-value-fluctuation
#13
Young Bin Kim, Jurim Lee, Nuri Park, Jaegul Choo, Jong-Hyun Kim, Chang Hun Kim
Bitcoin is an online currency that is used worldwide to make online payments. It has consequently become an investment vehicle in itself and is traded in a way similar to other open currencies. The ability to predict the price fluctuation of Bitcoin would therefore facilitate future investment and payment decisions. In order to predict the price fluctuation of Bitcoin, we analyse the comments posted in the Bitcoin online forum. Unlike most research on Bitcoin-related online forums, which is limited to simple sentiment analysis and does not pay sufficient attention to note-worthy user comments, our approach involved extracting keywords from Bitcoin-related user comments posted on the online forum with the aim of analytically predicting the price and extent of transaction fluctuation of the currency...
2017: PloS One
https://www.readbyqxmd.com/read/28085906/buzz-factor-or-innovation-potential-what-explains-cryptocurrencies-returns
#14
Sha Wang, Jean-Philippe Vergne
Cryptocurrencies have become increasingly popular since the introduction of bitcoin in 2009. In this paper, we identify factors associated with variations in cryptocurrencies' market values. In the past, researchers argued that the "buzz" surrounding cryptocurrencies in online media explained their price variations. But this observation obfuscates the notion that cryptocurrencies, unlike fiat currencies, are technologies entailing a true innovation potential. By using, for the first time, a unique measure of innovation potential, we find that the latter is in fact the most important factor associated with increases in cryptocurrency returns...
2017: PloS One
https://www.readbyqxmd.com/read/27886085/dirty-money-a-matter-of-bacterial-survival-adherence-and-toxicity
#15
Frank Vriesekoop, Jing Chen, Jenna Oldaker, Flavien Besnard, Reece Smith, William Leversha, Cheralee Smith-Arnold, Julie Worrall, Emily Rufray, Qipeng Yuan, Hao Liang, Amalia Scannell, Cryn Russell
In this study we report the underlying reasons to why bacteria are present on banknotes and coins. Despite the use of credit cards, mobile phone apps, near-field-communication systems, and cryptocurrencies such as bitcoins which are replacing the use of hard currencies, cash exchanges still make up a significant means of exchange for a wide range of purchases. The literature is awash with data that highlights that both coins and banknotes are frequently identified as fomites for a wide range of microorganisms...
November 23, 2016: Microorganisms
https://www.readbyqxmd.com/read/27768691/modeling-and-simulation-of-the-economics-of-mining-in-the-bitcoin-market
#16
Luisanna Cocco, Michele Marchesi
In January 3, 2009, Satoshi Nakamoto gave rise to the "Bitcoin Blockchain", creating the first block of the chain hashing on his computer's central processing unit (CPU). Since then, the hash calculations to mine Bitcoin have been getting more and more complex, and consequently the mining hardware evolved to adapt to this increasing difficulty. Three generations of mining hardware have followed the CPU's generation. They are GPU's, FPGA's and ASIC's generations. This work presents an agent-based artificial market model of the Bitcoin mining process and of the Bitcoin transactions...
2016: PloS One
https://www.readbyqxmd.com/read/27695049/where-is-current-research-on-blockchain-technology-a-systematic-review
#17
REVIEW
Jesse Yli-Huumo, Deokyoon Ko, Sujin Choi, Sooyong Park, Kari Smolander
Blockchain is a decentralized transaction and data management technology developed first for Bitcoin cryptocurrency. The interest in Blockchain technology has been increasing since the idea was coined in 2008. The reason for the interest in Blockchain is its central attributes that provide security, anonymity and data integrity without any third party organization in control of the transactions, and therefore it creates interesting research areas, especially from the perspective of technical challenges and limitations...
2016: PloS One
https://www.readbyqxmd.com/read/27472850/darknet-and-bitcoin-the-obscure-and-anonymous-side-of-the-internet-in-healthcare
#18
Marco Masoni, Maria Renza Guelfi, Gian Franco Gensini
Illegal activities prosecutable by law in the real life can be committed on the internet alike. In the healthcare domain, we refer mainly to selling of illegal and counterfeit drugs, exchange of pedo-pornographic material and marketing of stolen medical records. These illegal activities are made easier by recent developments of the Internet that medical community must be aware of: darknet and bitcoin. The first allows anonymous surfing and the last anonymous financial transactions. After discussing which healthcare areas are affected by these technological developments of the Internet and the deriving consequences, then the Authors express their opinion on what actions can be taken to protect internet community...
November 14, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27471990/ocfentanil-overdose-fatality-in-the-recreational-drug-scene
#19
Vera Coopman, Jan Cordonnier, Marc De Leeuw, Vincent Cirimele
This paper describes the first reported death involving ocfentanil, a potent synthetic opioid and structure analogue of fentanyl abused as a new psychoactive substance in the recreational drug scene. A 17-year-old man with a history of illegal substance abuse was found dead in his home after snorting a brown powder purchased over the internet with bitcoins. Acetaminophen, caffeine and ocfentanil were identified in the powder by gas chromatography mass spectrometry and reversed-phase liquid chromatography with diode array detector...
September 2016: Forensic Science International
https://www.readbyqxmd.com/read/27441715/visualizing-dynamic-bitcoin-transaction-patterns
#20
Dan McGinn, David Birch, David Akroyd, Miguel Molina-Solana, Yike Guo, William J Knottenbelt
This work presents a systemic top-down visualization of Bitcoin transaction activity to explore dynamically generated patterns of algorithmic behavior. Bitcoin dominates the cryptocurrency markets and presents researchers with a rich source of real-time transactional data. The pseudonymous yet public nature of the data presents opportunities for the discovery of human and algorithmic behavioral patterns of interest to many parties such as financial regulators, protocol designers, and security analysts. However, retaining visual fidelity to the underlying data to retain a fuller understanding of activity within the network remains challenging, particularly in real time...
June 2016: Big Data
keyword
keyword
170329
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"