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Hussein Hallak

Hussein Hallak
Hussein Hallak
Hussein Hallak

113 Resources

Annals of Tourism Research In Press, Corrected ProofWhat are Corrected Proof articles? Highlights • • • • • First page preview Click to open first page preview Open this preview in PDF View full text
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Much has been discussed about blockchain-based tokens lately. We hosted the inaugural Token Summit in New York on May 25th.
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Stanford University The Leland Stanford Junior University, commonly referred to as Stanford University or Stanford, is an American private research university located in Stanford, California on an 8,180-acre (3,310 ha) campus near Palo Alto, California, United States.
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Transactions are the most important part of the bitcoin system. Everything else in bitcoin is designed to ensure that transactions can be created, propagated on the network, validated, and finally added to the global ledger of transactions (the blockchain).
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Conceptually, the blockchain is a distributed database containing records of transactions that are shared among participating members. Each transaction is confirmed by the consensus of a majority of the members, making fraudulent transactions unable to pass collective confirmatio(...)
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Blockchain is not the first -and certainly will not be the last- network fever we will experience. This paper shows how blockchain networks will disrupt the urban context as well, similarly to what it is happening in the fintech and insurtech spaces, among many other emerging app(...)
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Consensus is a fundamental problem of distributed computing. While this problem has been known to be unsolvable since 1985, existing protocols were designed these past three decades to solve consensus under various assumptions.
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The paper focuses on various legal-related aspects of the application of blockchain technologies in the copyright sphere.
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Since its inception, the blockchain technology has shown promising application prospects. From the initial cryptocurrency to the current smart contract, blockchain has been applied to many fields.
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Abstract Based on the blockchain, homomorphic ElGamal encryption and ring signature, an electronic voting scheme based on blockchain is proposed for large-scale voting, which has the properties of decentralization, self-management, non-interactive and free-receipt, furthermore th(...)
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Incorporating currencies, payment methods, and protocols that computers use to talk to each other, digital currencies are poised to grow in use and importance.
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What is a Blockchain? Blockchains have their origins in cryptocurrency platforms, in particular bitcoin, where they represent historical records of verifiable monetary stake.
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The “DNA” of a permissioned blockchain network is no different than the “DNA” of an unpermissioned blockchain network. With the exception of one gene that has been mutated.
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Smart contracts, which are really scripts that have been saved onto a blockchain and operate in a distributed manner via all of the participants in the network, are a game changer for commercial and governance processes.
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To begin with, smart contracts are neither particularly smart nor are they, strictly speaking, contracts.
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You can download the reference client Bitcoin Core, also known as the "Satoshi client," from bitcoin.org.
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The bitcoin system, unlike traditional banking and payment systems, is based on de-centralized trust. Instead of a central trusted authority, in bitcoin, trust is achieved as an emergent property from the interactions of different participants in the bitcoin system.
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Bitcoin is structured as a peer-to-peer network architecture on top of the Internet.
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The blockchain data structure is an ordered, back-linked list of blocks of transactions. The blockchain can be stored as a flat file, or in a simple database. The Bitcoin Core client stores the blockchain metadata using Google’s LevelDB database.
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Mining is the process by which new bitcoin is added to the money supply. Mining also serves to secure the bitcoin system against fraudulent transactions or transactions spending the same amount of bitcoin more than once, known as a double-spend.
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The core principle in bitcoin is decentralization and it has important implications for security. A centralized model, such as a traditional bank or payment network, depends on access control and vetting to keep bad actors out of the system.
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Bitcoin was the result of 20 years of research in distributed systems and currencies and brought a revolutionary new technology into the space: the decentralized consensus mechanism based on proof of work.
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There are lots of ways to make money: You can earn it, find it, counterfeit it, steal it. Or, if you’re Satoshi Nakamoto, a preternaturally talented computer coder, you can invent it.
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Many thousands of articles have been written purporting to explain Bitcoin, the online, peer-to-peer currency. Most of those articles give a hand-wavy account of the underlying cryptographic protocol, omitting many details. Even those articles which delve deeper often gloss ove(...)
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Got your shiny new ASIC miner? Wondering when it will pay off? If you enter your hash rate below, this page will calculate your expected earnings in both Bitcoins and dollars over various time periods (day, week, and month).
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If you have been paying attention to bitcoin at all lately, you may have noticed a lot of talk going on about 'forks'. Not like the kind you would find on a table, on a blockchain, a fork is a technical event that occurs because diverse participants need to agree on common rules(...)
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In the nineteen-seventies, the Internet was a small, decentralized collective of computers. The personal-computer revolution that followed built upon that foundation, stoking optimism encapsulated by John Perry Barlow’s 1996 manifesto “A Declaration of the Independence of Cybersp(...)
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Using metaphors from biological evolution, Andreas examines the currency ecosystem and its development. Presented in Milan in March 2016 to the Milan Bitcoin Meetup community: https://www.meetup.com/bitcoinmilano/Want to hear more about Bitcoin and open blockchains?Follow on Twit(...)
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On March 16th, the Cypriot President Nicos Anastasiades, who’d been in office for about a month, announced a strategy to solve the country’s banking crisis.
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Without a Bitcoin wallet, you can’t send or receive Bitcoin payments. So before you get bitcoins, you’ll need to buy, download, or create a bitcoin wallet. Are you a new Bitcoin user? We highly recommend the free Copay wallet that can be used on many operating systems.
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Major fortunes, millions of dollars in some cases, have been made and lost with alt-coins. So, it might be in your interest to keep reading and then continue with your research of the alt-coins.
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Economics 101 -- "How the Economic Machine Works."Created by Ray Dalio this simple but not simplistic and easy to follow 30 minute, animated video answers the question, "How does the economy really work?" Based on Dalio's practical template for understanding the economy, which he(...)
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How does IOTA's tangle work and how does it compare to a traditional blockchain like the one Bitcoin uses? In this video I'll explain these topics in a simple way!? SocialTwitter: https://twitter.com/savjeeFacebook: https://www.facebook.com/savjee✏️ Check out my bloghttps://www.s(...)
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How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English!? Follow me on Twitter: https://twitter.com/savjee✏️ Check out my blog: https://www.savjee.b(...)
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Learn and understanding what private keys are and how to keep them safe is essential to safely use cryptocurrency. We recommend using Bitcoin Core for network consensus and Armory to manage private keys.
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Bitcoin in five minutes: Blockchain technology will drastically change our lives.In the coming years, the technology behind crypto currencies such as Bitcoin will inevitably and radically change the role of traditional trusted parties such as banks, accountants, notaries, and gov(...)
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Cardano (ADA) is gaining a lot of traction, but what makes it so special? In this video I'll explain all the problems that the Cardano team intends to solve.It boils down to: Scalability, Interoperability and Sustainability. Watch the video to learn more!? SocialTwitter: https://(...)
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Lightning.network● Sources -https://docs.google.com/document/d/1a...♫ Music:Blue in Green - Rainy Streetshttps://soundcloud.com/blngrnhttp://coldbusted.org/vinyl-blue-in-g...? Join the Litecoin Communities:https://litecoinassociation.org/resou...❤ https://twitter.com/litecoinass(...)
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1. The Lightning Network's trustless anonymity 0:00Assignment of claims, a series of IOUs / forward-looking promises. You don't have to trust any of the partcipants in between, and if it's implemented properly you have no idea who the other participants are. Onion routing like To(...)
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NEO was developed by a blockchain R&D company called Onchain.Launched in 2014 as AntShares, it was rebranded as NEO in 2017.NEO focuses on innovating in the areas of digital asset transfer, smart contracts, and digital identity verification.Buy Bitcoin, Ethereum, and other curren(...)
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What is Cardano?In this video I will cover the basics of Cardano/ADA for beginners.I will go over some of the main features as well as the proof-of-stake protocol for Cardano/ADA called Ouroboros.n 2015 the Cardano Foundation founded Cardano. Cardano is a platform composed of a s(...)
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The most watched Bitcoin introduction video ever. This updated (04/2014) video explains how bitcoin works and the importance of this paradigm shifting technology.More information:https://www.weusecoins.comhttps://www.bitcoinmining.comFollow us on Twitter: https://www.twitter.com/(...)
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A smart contract is a special protocol intended to contribute, verify or implement the negotiation or performance of the contract. Smart contracts allow to perform credible transactions without third parties. These transactions are trackable and irreversible.
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The meltdown of “The DAO” and, more recently DDOS attacks on Ethereum have spurred a debate on the wisdom of “Turing completeness” in smart contract languages.
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The contract, a set of promises agreed to in a "meeting of the minds", is the traditional way to formalize a relationship. While contracts are primarily used in business relationships (the focus of this article), they can also involve personal relationships such as marraiges.
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The rise of Ethereum and other “Smart Contract” platforms like Waves or Neo was very confusing for Bitcoin maximalists. They missed out on huge gains, meanwhile new investors were (and still are) cashing in on the hype.
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Part 2: https://www.youtube.com/watch?v=TC-bD...In this video I give an introduction to smart contracts in ethereum.First I explain what accounts are in a simpler currency only blockchain.Then I show how ethereum introduces a second type of account: a code controlled account (aka(...)
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Learn more about how blockchain works and see it in action within the diamond industry, which has been plagued by fraud, theft and controversy.
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What are smart contracts and what do they have to do with blockchains and cryptocurrencies? Well, let's find in plain English!? Want to buy Bitcoin or Ethereum?Buy for $100 and get $10 free (through my affiliate link):https://www.coinbase.com/join/5928452...? Follow me on Twitter(...)
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What is a blockchain and how do they work? I'll explain why blockchains are so special in simple and plain English!? Want to buy Bitcoin or Ethereum?Buy for $100 and get $10 free (through my affiliate link):https://www.coinbase.com/join/5928452...? Sources* Original paper on Bloc(...)
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Distributed Ledger Platforms may be Getting All the Hype but the architecture of Bitcoin is more sophisticated than many people realise I was a guest of the Financial Services Club Scotland last week.
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You know that radical ideas are moving into the mainstream when IBM starts selling them. The Big Blue might be a pioneer in its research labs but with global clients in banking and health IBM can’t afford to play silly-buggers.
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uploaded by satoshi- for reddit
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The video shows a sample supply chain process between multiple parties.For more information, please visit http://www.ibm.com/blockchain/for_dev...
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In this tutorial my objective is to walk you through the steps required to create a descentralized application from start to finish and deploy it in ethereum.
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Join over 115,115 Members Angel Investors, Startups & Blockchain developers... No Thanks! If you want to know what is Ethereum and how it works and what it can be used for, without going deep into the technical abyss, this guide is perfect for you.
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Today’s ICOs are deeply flawed and lack the right incentives. Tokenized Securities Offerings (TSOs) are the solution. At Sia, we have closely watched over the last year as billions of dollars flow into ICOs.
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In 1998, the United States Department of Justice filed an antitrust complaint against Microsoft, accusing the company of abusing their monopoly power.
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How do banks pay each other? In most countries, when banks want to transfer money to each other, perhaps upon instruction from a customer, they don’t put bundles of banknotes in vans, they pay each other digitally. How does this work?
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This post aims to explain the various common forms of money that exist today, and the words we use to describe them. Confusingly, terminology differs from country to country and words are used to mean different things in different contexts.
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Every few days I hear the argument “If x% of the money in gold (or other asset class) moved into bitcoin, a single bitcoin should be worth $y”.  This article explains why this argument is utter nonsense.
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In the context of data security, the immutability of data stored on blockchains is important. What do people mean when they say “Blockchains are immutable”? In this post I try to explain the key concepts.
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Proof of Stake (PoS) is a category of consensus algorithms for public blockchains that depend on a validator's economic stake in the network. In proof of work (PoW) based public blockchains (e.g.
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Bitcoin and Ethereum, the most widely used blockchains, cannot currently support mainstream transaction usage.
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In the past 3 months, we’ve seen an explosion in interest in digital collectibles on the Ethereum blockchain.
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Decentralized applications (dApps) are becoming increasingly interesting to developers around the world. Unlike traditional applications built on platforms like iOS and Android, dApps connect users and developers directly without the need for a middleman to host and manage the co(...)
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A Bitcoin ATM (also referred to as a Bitcoin kiosk) is a physical device used for withdrawing Bitcoin and other cryptocurrencies as cash. Users can also use Bitcoin ATMs to buy Bitcoin with money and have the purchased cryptocoins sent to their software or hardware wallets.
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Although ‘Bitcoin‘ and ‘Ethereum’ are terms that are often paired together, the reality is that they are vastly different. The only thing Ethereum shares with Bitcoin is that it’s a cryptoasset running on top of blockchain.
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Users can express their opinions on the outcomes of different issues by buying shares in a given outcome. The system operates, as with other prediction markets, on the principle that the ‘wisdom of the crowd’ is a superior forecasting tool than individual views.
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Cardano is a cryptocurrency project and decentralized public blockchain developing a smart contract platform that aims to deliver more advanced features than previous protocols.
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Well if this scam is so brilliant, then it surely deserves a full-blown inquiry. In this post we will go through the details of this scam and hopefully we’ll learn a thing or two about Ethereum, private keys and scams.
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The core code supporting Bitcoin was published in April 2009. Since then, the number of projects on GitHub related to blockchain has grown significantly, averaging more than 8,600 new projects a year. In 2016 alone, there were almost 27,000 new projects (figure 3).
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Join over 115,115 Members Angel Investors, Startups & Blockchain developers... No Thanks! Metropolis is upon us! Or at least it’s the first iteration. After a lot of deliberations and updates, the time has finally arrived for the next big jump.
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Canadian writers and researchers, Alex and Don Tapscott, authors of the new book Blockchain Revolution, explain that blockchain goes way beyond the second coming of the internet.
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What is Ethereum? According to the Ethereum website, “Ethereum is a decentralized platform that runs smart contracts.
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Over the last few years over $1bn has been invested in digital currency startups from venture capital firms and institutional investors. Then something odd started happening over the last 4 months.
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We have sat here for the last 3 years seeing only infrastructure apps like wallets and exchanges emerge on top of Bitcoin. Why is that?
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I’ve been at a few events recently where people talk about the “market cap(italisation)” of utility tokens issued in ICOs, and comparing them to the market cap of cryptocurrencies or (even worse) listed companies.  This is truly dreadful and misleading, perhaps sometimes intentio(...)
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YouTube/Market Watch George Weiksner and his father Michael are creating an ethereum-based token that can be used across multiple gaming platforms.George was first introduced to cryptocurrencies by his dad, Michael Weiksner, who has worked in the industry in the past.
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The terms “block” and “blockchain” are now invariably tied to Bitcoin. The highest level of abstraction of a bitcoin is the block. This is, however, a bit of misnomer; think of the block more so as a page. Imagine an old-school accountant’s ledger.
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Syrian refugees could regain legal identities that were lost when they fled their homes
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The economist credited with predicting the 2008 global financial crisis said a 12% fall in the value of bitcoin on Friday was the latest proof that the cryptocurrency was the biggest bubble in history and destined for a crash.
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September has been a wild ride for bitcoin owners: the digital currency began the month nudging an all-time high of $5,000 before losing nearly 40% of its value in a spectacular crash. Now, a recovery has seen bitcoin pop back over $4,000 as of Monday morning.
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This list describes cryptocurrencies. Each gets four words. There are many.
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Last year, The DAO, a decentralized ‘autonomous’ investment fund, got hacked for $50 million. In July, a hacker was able to steal $31M of Ether by exploting a bug found in Parity’s wallets.
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In this guide you’ll learn all you need to take a web app that you already have and convert it into a dapp. I’ll walk you through all the steps from start to finish. At the end of it, you’ll know how to create your own decentralized application based on your web apps in any situa(...)
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I have been learning about Ethereum blockchain platform for some time and the more I learn, the more exciting it looks. There are lots of resources (articles, videos, platform documentation) about Ethereum, it’s easy to get overwhelmed.
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As you are beginning with Ethereum development, and after going through some of the many excellent tutorial posts out there, you are faced with the challenge of building your first Ethereum-based app.
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Many of the technologies we now take for granted were quiet revolutions in their time. Just think about how much smartphones have changed the way we live and work. It used to be that when people were out of the office, they were gone, because a telephone was tied to a place, not(...)
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Welcome to the future of forecasting Augur combines the magic of prediction markets with the power of a decentralized network to create a stunningly accurate forecasting tool - and the chance for real money trading profits Subscribe for updates about Augur We won't share y(...)
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The way media and experts are nearly universally labelling bitcoin’s vertiginous price surge a “bubble” is just another bizarre episode in the cryptocurrency’s odd saga. Generally, bubbles are not called as they happen.
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WIRED has been reporting on digital currency Bitcoin for several years, but in the past few months, a single bitcoin's trading value has swung significantly making it a regular fixture in headlines.
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Blockchain also has potential applications far beyond bitcoin and cryptocurrency. Blockchain is, quite simply, a digital, decentralized ledger that keeps a record of all transactions that take place across a peer-to-peer network.
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Bitcoin, and its fundamental technology blockchain, have been popping up in the news plenty over the past few years.
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Donate Bitcoin documentaries from around the world. Want more Bitcoin Films? Then support us! The Team Behind We are a team of volunteers who are excited about how bitcoins are used by people around the world.
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It seems the Bitcoin community is not correctly tallying the true cost of Bitcoin transactions. The belief is that Cost = Miner Fee. We’ll show why this is wrong, but the fee is of course part of the cost, so let’s examine it first…
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This talk is about the Role of Bitcoin as Money. This talk is intended to give people a better understanding of money itself.
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Bitcoin’s surge may be ending. The cryptocurrency took the spotlight last year, skyrocketing into mainstream consciousness with a massive price rise. Whilst it still holds the highest value, the price of a single Bitcoin halved at the beginning of 2018 and there's no telling wher(...)
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Many have heard of bitcoin, but few understand its various aspects… That’s why we have carefully prepared this 60 minute bitcoin crash course. No prior knowledge required! Just read, watch the videos, and in one hour, you’ll know what bitcoin is all about.
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In a recent interview with Tuur Demeester, Paul Sztorc made the interesting claim that “non-Bitcoin blockchains are disrespectful to Satoshi.” He has elsewhere and for a long time criticized non-Bitcoin digital assets of all forms.
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Join over 115,115 Members Angel Investors, Startups & Blockchain developers... No Thanks! What is cryptocurrency:  21st-century unicorn – or the money of the future? This introduction explains the most important thing about cryptocurrencies.
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Many talented tech developers have devoted their efforts to cryptocurrency mining, while others have focused on more entrepreneurial pursuits such as developing exchanges, wallet services, and alternative cryptocurrencies.
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Few people understand what it is, but Wall Street banks, IT organizations, and consultants are buzzing about blockchain technology. It's hard to remove blockchain from Bitcoin, so we'll start with Bitcoin as we work to understand this technology's potential. Bitcoin. Blockchain.(...)
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Unless you’re hiding under the rock, I am sure you’d have heard of Bitcoins and Blockchain. After all, they are the trending and media’s favorite topics these days — the buzzwords of the year.
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Leanne Kemp is using the blockchain in an unconventional way: to fight crime. The system created to run the bitcoin cryptocurrency has often been associated with less than reputable activities – from drug trafficking to ransomware payments – but Everledger is using the blockchain(...)
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In this video, I explore the reality of how "decentralized" the current top 10 (by market cap) cryptocurrencies are. We focus on mining and wealth distribution, breaking down the numbers for each of these currencies. Stay tuned for a link to the "Are we decentralized yet?" spread(...)
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Andreas Antonopoulos - The Death of Money - Part 1 of 2. SUBSCRIBE ON YOUTUBE: http://bit.ly/SubscribeToLondonRealFREE FULL EPISODE: https://londonreal.tv/andreas-antonop...Andreas Antonopoulos is a Greek California-based information security expert, tech-entrepreneur and author.(...)
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Nick Szabo (@NickSzabo4) is a polymath. The breadth and depth of his interests and knowledge are truly astounding. He’s a computer scientist, legal scholar, and cryptographer best known for his pioneering research in digital contracts and cryptocurrency.
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