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Bitcoin Transaction Details - Part 1
 
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A look at how a transaction is constructed This video is part of a larger online course, "From Barter to Bitcoin: Society, Technology and the Future of Money" run by Prof. Bill Maurer and Prof. Donald J. Patterson In addition to the video on YouTube there is a variety of other content available to students enrolled in the class. "In 2008, a person calling himself or herself or themselves Satoshi Nakamoto released a paper suggesting a system for an anonymous, peer-to-peer alternative money. Bitcoin was born. Although not the first digital currency ever proposed, nor the first challenger to fiat money, bitcoin is the first to have captured the broad imagination of speculators, coders, regulators, criminals and the mass media. This course puts Bitcoin in context: how do we understand money as a social, political and technological phenomenon? From discussions of ancient transactions to the rise of state-issued currencies, we will explore the social and technical aspects of bitcoin, its predecessors and potential successors, and how its features echo aspects of many different historical transaction systems. No prior knowledge of economics or computing is required. There is little academic writing on bitcoin. And this may be the first truly academic class on the topic. We want to put bitcoin in a wider perspective, to reflect on what it means for society, politics and economics, as well as how it helps us think about money both a social and a technical phenomenon. This class is not an advanced seminar on bitcoin--we will not be delving deeply into the inner workings of the system, but instead providing a bird's-eye overview with enough technical detail for you to be able to put media stories, hype and hope around bitcoin in perspective. Similarly, this is not a class in monetary economics--we won't go too deeply into monetary theory or policy, the money supply, or inflation. Instead the class invites you to think more deeply about one of the oldest systems of technology on the planet, and most ubiquitous: money, whether coin, cash, credit card or cryptocurrency, we humans have been making money for most of the past 10,000 years. How we do so in the future is a question bitcoin just maybe helps us answer."
Views: 31635 djp3
Mining Bitcoin with pencil and paper
 
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Bitcoins are mined using a cryptographic algorithm called SHA-256. This algorithm is simple enough to be done with pencil and paper, as I show in this video. Not surprisingly, this is a thoroughly impractical way to mine. One round of the algorithm takes 16 minutes, 45 seconds which works out to a hash rate of 0.67 hashes per day. For details, see http://righto.com/sha
Views: 1173362 Ken Shirriff
Mining Bitcoin with Excel
 
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Learn how to mine Bitcoin with an Excel spreadsheet. Check out the following video for info on 21's Bitcoin computer, which can actually be used to mine Bitcoins and monetize your endpoint: https://youtu.be/mLwbBojDD_U In this video, we explain the algorithm behind Bitcoin mining and show you how you could (in theory) do it yourself! Download the spreadsheet here: https://www.dropbox.com/s/2erhq2uum7fvdc2/Bitcoin.xlsx?dl=0 See more at www.knowledgevideos.net The algorithm is from Jersey: 13GFWmp4HWdidJaTxWHCcaHPrqBPfddDHK NIST SHA-256 Description: http://csrc.nist.gov/groups/STM/cavp/documents/shs/sha256-384-512.pdf
Views: 165668 Knowledge
Building a Blockchain in Under 15 Minutes - Programmer explains
 
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I wanted to demonstrate that the concept of a blockchain that powers almost all of the modern cryptocurrencies is very simple at its core. Bitcoin, Ethereum, Litecoin etc all are based on this blockchain technology. Many people think that the blockchain is a complicated thing while at it's core its just a clever use case of hashes. Enjoy guys! CODE: https://github.com/ivan-liljeqvist/SimpleBlockchain JOIN MY EXCLUSIVE MAILING LIST FOR EVEN MORE BLOCKCHAIN KNOWLEDGE: http://eepurl.com/c0hyc9 ESSENTIAL CRYPTO RESOURCES Hardware wallets: ♥ TREZOR https://trezor.io ♥ LEDGER NANO S https://www.ledgerwallet.com/r/4607 To buy cryptocurrencies: ♥ Coinbase https://www.coinbase.com/join/529bab0ab08ded7080000019 JOIN SLACK COMMUNITY http://slack-invite-ivan-on-tech.herokuapp.com https://steemit.com/@ivanli
Views: 341053 Ivan on Tech
Bitcoin - Transaction block chains
 
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The mechanics of a bitcoin transaction block chain, which is a construct that is generated by bitcoin miners and functions as a global ledger for recording and validating bitcoins. More free lessons at: http://www.khanacademy.org/video?v=QzDO44oZWtE Video by Zulfikar Ramzan. Zulfikar Ramzan is a world-leading expert in computer security and cryptography and is currently the Chief Scientist at Sourcefire. He received his Ph.D. in computer science from MIT.
Views: 206941 Khan Academy
Blockchain 101 - A Visual Demo
 
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This is a very basic visual introduction to the concepts behind a blockchain. We introduce the idea of an immutable ledger using an interactive web demo. Part 2 is here: https://youtu.be/xIDL_akeras If you are interested in playing with this on your own, it is available online at: http://anders.com/blockchain/ The code that runs this demo is also on GitHub: https://github.com/anders94/blockchain-demo I'm @anders94 on Twitter and @andersbrownworth on Steemit. Donations: BTC: 1K3NvcuZzVTueHW1qhkG2Cm3viRkh2EXJp ETH: 0x84a90e21d9d02e30ddcea56d618aa75ba90331ff ETC: 0xab75ad757c89fa33b92090193a797e6700769ef8
Views: 879223 Anders Brownworth
Creating a blockchain with Javascript (Blockchain, part 1)
 
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Learn how to write your own Blockchain with JavaScript. In this video I'll show you what is behind a blockchain by using simple code. It's not a complete implementation, but enough to understand how blockchains work and how they guarantee that blocks can never be changed. After creating our blockchain we'll try and tamper with it. This will demonstrate a blockchains ability to detect fraud. Next video (implementing proof-of-work): https://youtu.be/HneatE69814 💰 Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 ► Source code Available on GitHub: https://github.com/SavjeeTutorials/SavjeeCoin ► About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be ✉️ Subscribe to newsletter: https://goo.gl/nueDfz 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
How Bitcoin Works Under the Hood
 
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A somewhat technical explanation of how Bitcoin works. Want more? Check out my new in-depth course on the latest in Bitcoin, Blockchain, and a survey of the most exciting projects coming out (Ethereum, etc): https://app.pluralsight.com/library/courses/bitcoin-decentralized-technology Lots of demos on how to buy, send, store (hardware, paper wallet). how to use javascript to send bitcoin. How to create Ethereum Smart Contract, much more. Shorter 5 min introduction: https://www.youtube.com/watch?v=t5JGQXCTe3c Written version: http://www.imponderablethings.com/2013/07/how-bitcoin-works-under-hood.html My Bitcoin address: 13v8NB9ScRa21JDi86GmnZ5d8Z4CjhZMEd Arabic translation by Ahmad Alloush Spanish caption translation by Borja Rodrigo, [email protected], DFJWgXdBCoQqo4noF4fyVhVp8R6V62XdJx Russian caption translation by Alexandra Miklyukova Italian voice over: http://youtu.be/1aEf3qr7UdE Italian captions translated by Simone Falcini, 1H5KdCnBooxfqpXtyQBBAKKRU7MkCZCVCe
Views: 2600888 CuriousInventor
Write articles on blockchain and cryptocurrencies
 
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http://ytwizard.com/r/DDFMPH http://ytwizard.com/r/DDFMPH Write articles on blockchain and cryptocurrencies
Views: 12 Loc Nguyen
Blockchain vs. Bullshit
 
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In this talk, the speaker outlines the necessary criteria that will help us distinguish blockchains from bullshit, and why the goal of developing this technology should not be "banking the unbanked" but rather de-banking all of us. EVENT: Blockchain Africa Conference, March 2017 SPEAKER: Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin. PERMISSIONS: The original video was published on Andreas YouTube channel (https://www.youtube.com/channel/UCJWCJCWOxBYSi5DhCieLOLQ) with the Creative Commons Attribution license (reuse allowed). ORIGINAL SOURCE: https://www.youtube.com/watch?v=SMEOKDVXlUo
Views: 12220 Coding Tech
Satoshi Nakamoto | Is he Japanese?
 
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GET THIS COURSE FOR $9.99 HERE: https://www.udemy.com/bitcoin-for-beginners-meet-the-architect-satoshi-nakamoto/?couponCode=YOUTUBE10 This lesson focuses on Satoshi Nakamoto's writing style. Discounted Coupon codes for other Courses: Bitcoin for Beginners: Bitcoin Mining and Blockchain basics ONLY $9.99 Here: https://www.udemy.com/bitcoin-for-beginners-bitcoin-mining-and-blockchain-basics/?couponCode=BITCOIN-10 Cryptocurrency Investment Course: Cryptocurrency Wallets ONLY $9.99 Here: https://www.udemy.com/cryptocurrency-investment-course-cryptocurrency-wallets/?couponCode=CRYPTO-10 Cryptocurrency Investment Course: Privacy Coins ONLY $9.99 Here: https://www.udemy.com/altcoin-investing-course-anonymous-cryptocurrencies/?couponCode=ALT-10 Bitcoin Trading & Bitcoin Mining Crypto Slang Course ONLY $9.99 Here: https://www.udemy.com/bitcoin-trading-bitcoin-mining-crypto-slang-course/?couponCode=YOUTUBE10 Get Started for free on Skillshare: https://skl.sh/2LNoFDN
Views: 65 Szabolcs Juhasz
Blockchain Websocket API - JavaScript
 
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Video tutorial on using blockchain.info's websocket API to monitor a specific Bitcoin address in real-time. Building Bitcoin Websites Book: https://www.amazon.com/Building-Bitcoin-Websites-Beginners-Development/dp/153494544X Google Chart API url for QR code: http://chart.googleapis.com/chart?chs=200x200&cht=qr&chl=
Views: 13004 m1xolyd1an
Python Bitcoin Tutorial for Beginners
 
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My Book: https://www.amazon.com/Building-Bitcoin-Websites-Beginners-Development/dp/153494544X A simple introduction tutorial to get started with the pybitcointools Python library. https://github.com/vbuterin/pybitcointools
Views: 52499 m1xolyd1an
What is a Smart Contract? A Beginner’s Guide
 
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What is a Smart Contract? A Beginner’s Guide You'll receive $10 in free bitcoin by signing up with this link http://bit.ly/2oesV41 Bitcoin & Etherum Storage Wallet: http://bit.ly/2o7BmgW Book Recommendations: http://amzn.to/2pv7kF4 Get One-to-One Consulting https://clarity.fm/ameerrosic Blockchain Training: http://bit.ly/2nGhdn0 Quadrigacx Canadian Crypto Exchange: http://bit.ly/2papyuV What are Smart Contracts? Smart contracts help you exchange money, property, shares, or anything of value in a transparent, conflict-free way, while avoiding the services of a middleman. The best way to describe smart contracts is to compare the technology to a vending machine. Ordinarily, you would go to a lawyer or a notary, pay them, and wait while you get the document. With smart contracts, you simply drop a bitcoin into the vending machine (i.e. ledger), and your escrow, driver’s license, or whatever drops into your account. More so, smart contracts not only define the rules and penalties around an agreement in the same way that a traditional contract does, but also automatically enforce those obligations. Example Suppose you rent an apartment from me. You can do this through the blockchain by paying in cryptocurrency. You get a receipt which is held in our virtual contract; I give you the digital entry key which comes to you by a specified date. If the key doesn’t come on time, the blockchain releases a refund. If I send the key before the rental date, the function holds it releasing both the fee and key to you and me respectively when the date arrives. The system works on the If-Then premise and is witnessed by hundreds of people, so you can expect a faultless delivery. If I give you the key, I’m sure to be paid. If you send a certain amount in bitcoins, you receive the key. The document is automatically cancelled after the time, and the code cannot be interfered by either of us without the other knowing, since all participants are simultaneously alerted. You can use smart contracts for all sort of situations that range from financial derivatives to insurance premiums, breach contracts, property law, credit enforcement, financial services, legal processes and crowd funding agreements. My name is Ameer Rosic, and I'm a serial entrepreneur, investor, marketing Strategist and Blockchain Evangelist Blog http://www.Ameerrosic.com Blockgeeks: http://www.blockgeeks.com Facebook http://www.Facebook.com/ameerrosic Twitter http://www.Twitter.com/ameerrosic InstaGram http://www.Instagram.com/ameerrosic
Views: 183733 Ameer Rosic
How does a blockchain work - Simply Explained
 
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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/59284524822a3d0b19e11134 📚 Sources can be found on my website: https://www.savjee.be/videos/simply-explained/how-does-a-blockchain-work/ 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be ✉️ Subscribe to newsletter: https://goo.gl/nueDfz 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
Views: 2022726 Simply Explained - Savjee
Ever wonder how Bitcoin (and other cryptocurrencies) actually work?
 
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Bitcoin explained from the viewpoint of inventing your own cryptocurrency. Videos like these made possible by patreon: https://patreon.com/3blue1brown Protocol Labs: https://protocol.ai/ Interested in contributing? https://protocol.ai/join/ Special thanks to the following patrons: http://3b1b.co/btc-thanks Some people have asked if this channel accepts contributions in cryptocurrency form as an alternative to Patreon. As you might guess, the answer is yes :). Here are the relevant addresses: ETH: 0x88Fd7a2e9e0E616a5610B8BE5d5090DC6Bd55c25 BTC: 1DV4dhXEVhGELmDnRppADyMcyZgGHnCNJ BCH: qrr82t07zzq5uqgek422s8wwf953jj25c53lqctlnw LTC: LNPY2HEWv8igGckwKrYPbh9yD28XH3sm32 Supplement video: https://youtu.be/S9JGmA5_unY Music by Vincent Rubinetti: https://soundcloud.com/vincerubinetti/heartbeat Here are a few other resources I'd recommend: Original Bitcoin paper: https://bitcoin.org/bitcoin.pdf Block explorer: https://blockexplorer.com/ Blog post by Michael Nielsen: https://goo.gl/BW1RV3 (This is particularly good for understanding the details of what transactions look like, which is something this video did not cover) Video by CuriousInventor: https://youtu.be/Lx9zgZCMqXE Video by Anders Brownworth: https://youtu.be/_160oMzblY8 Ethereum white paper: https://goo.gl/XXZddT Music by Vince Rubinetti: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown
Views: 2174702 3Blue1Brown
Recover Litecoin If Sent to Bitcoin Wallet Address Electrum
 
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This tutorial only works if you have access to your private keys of your BTC address, but if your wallet is ledger nano S you will have to follow a different guide since that creates Segwit addresses, they start with a 3, but they are different than a multisig. In this video I send litecoin to a multisig 2FA bitcoin address, and demonstrate how to recover it. This is useful if you accidentally copied a bitcoin address when you were intending to copy a litecoin address. So your LTC got locked in a BTC address. Always use strong passwords, never leave a wallet file without a password. Use a hardware wallet if you can. Control your own keys, do not leave coins on exchanges. I am going to leave the LTC in the wallet, help yourself, whoever takes it please leave a comment below. Also never show people your seed on internet unless you are intending to give away the coins, also it is really bad practice to put your seed in a text document, write it down by hand. :) Another consideration, disconnect yourself from the internet to do this tutorial, you really do not want to have your private keys on the screen or in plain text ever, unless you are disconnected from the internet and know your computer is clean hasn't been compromised. Donations BTC: 3BwGgXSE3XU2PpPygRiaaboYfYMsYBYdYB LTC: LeodZwYwJ7Fi2yv3HDJhmzEavHsfz7D59c
Views: 5500 digitalnutrition io
Adjustments to block size increases up ahead, Bitcoin ABC’s Amaury Sechet says
 
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CoinGeek’s Stephanie Tower caught up recently with Bitcoin ABC’s lead developer Amaury Sechet, who sees Bitcoin Cash as having a significant role in the development of a truly global payment system.
Views: 518 CoinGeek
Demo: Create an Ethereum Smart Contract
 
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http://bit.ly/bitcoincourse Demo showing how to send ether, create and deploy a Smart Contract using the Ethereum Wallet. Part of a larger 3.5 hr course on Bitcoin and Decentralized Technology.
Views: 117815 CuriousInventor
Bitcoin Mining Complete Guide & Tutorial (EASIEST METHOD Working 2018)
 
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Video tutorial/guide showing how to start mining Bitcoins from home super simple and easily, for beginners, or advanced users, using NiceHash. Bitcoins are a cryptocurrency, like Litecoins and Ethereum which offer an anonymous form of digital currency. This video will show you how to setup a bitcoin wallet, download and install the mining program (nicehash), link it up to your wallet using the bitcoin address, and use the optimal algorithm for mining the most bitcoins and earning the money. Mining these Bitcoins is a way to introduce new bitcoins into the world, as well as verify transactions occurring in the blockchain. You can earn bitcoins and money, by mining at home from your very own PC computer. I also include some tips which helped me mine! Techlore Website: http://www.techlore.tech My Video Equipment (Affiliate Link): https://www.amazon.com/shop/influencer20170928875 Instagram: @techlemur Discord: https://discord.gg/sdMv9Zj Minds: https://www.minds.com/Techlore DTube: https://d.tube/#!/c/techlore *ATTENTION* Nicehash has updated their program and the UI is very different from this video. I made an updated video so you can all follow along. Here is the link. Use the new program with Nvidia Cards: UPDATED VIDEO: https://www.youtube.com/watch?v=XnAjCMb_uEg Coinbase Link: https://www.coinbase.com/join/5942e0b5d26ede03db311893 NiceHash Link: https://www.nicehash.com/?p=nhmintro You should mine with a powerful Graphics Card (GPU), and only on desktop computers (Not laptops). You need a bitcoin wallet like Coinbase, and you will need NiceHash. Make sure to benchmark your algorithms to get the most amount of bitcoins. Bitcoin mining is the process of adding transaction records to Bitcoin's public ledger of past transactions or blockchain. This ledger of past transactions is called the block chain as it is a chain of blocks. The block chain serves to confirm transactions to the rest of the network as having taken place. Bitcoin nodes use the block chain to distinguish legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.
Views: 265913 Techlore
*Easy* Bitcoin Transaction Walkthrough
 
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Check out my other videos on my Blog http://www.onedailyidea.com This video is a walk through on how to do a transaction using Bitcoins. We utilize 2 different apps for this CoinBase app for the seller: http://blog.coinbase.com/post/44730207780/the-coinbase-android-app-has-launched Bitcoin Wallet: https://play.google.com/store/apps/details?id=de.schildbach.wallet We used Android phones but you can use any of the Smart phones on the market for this.
Views: 26539 Everyman DIY
DEVCON1: Understanding the Ethereum Blockchain Protocol - Vitalik Buterin
 
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DEVCON1 09:20am Day 3 Ethereum's Vitalik Buterin (https://twitter.com/VitalikButerin) presents on the intricacies of the Ethereum Blockchain Protocol.
Views: 119896 Ethereum
Blockchain Wallet | How To Create Blockchain Bitcoin Wallet | Blockchain Tutorial | Edureka
 
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( Blockchain Training : https://www.edureka.co/blockchain-training ) This video on Blockchain Wallet helps you to learn following topics: 1. Why we need Blockchain Wallet? 2. What is Blockchain Wallet? 3. Features of Blockchain wallet 4. Types of Wallet 5. Comparing Blockchain Wallet 6. Demo - Transferring Currency across Wallets Subscribe to our channel to get video updates. Hit the subscribe button above. #Blockchain #Blockchaintutorial #Blockchainonlinetraining #Blockchainforbeginners How it Works? 1. This is a 4 Week Instructor led Online Course, 20 hours of assignment and 20 hours of project work 2. We have a 24x7 One-on-One LIVE Technical Support to help you with any problems you might face or any clarifications you may require during the course. 3. At the end of the training you will be working on a real time project for which we will provide you a Grade and a Verifiable Certificate! - - - - - - - - - - - - - - - - - About the Course Edureka's Blockchain Course is designed to introduce you to the concept of Blockchain and explain the fundamentals of blockchain and bitcoin. Blockchain course will provide an overview of the structure and mechanism of blockchain. As a beginner, you will be learning the importance of consensus in transactions, how transactions are stored on blockchain, history of bitcoin and how to use bitcoin. Furthermore, you will be taught about the Ethereumplatform and its programming language. You will setup your own private blockchain environment using Ethereum. Also, you will develop a smart contract on private Ethereum blockchain and will be deploying the contract from web and console. The course is fed with various use-cases and examples, which makes the learning more interesting. After completing this Course, you should be able to: Comprehend the cryptography and cryptocurrency concepts Encompass the concept of blockchain Understand the importance of blockchain technology Have a deep insight into bitcoin and its network Perceive, how bitcoin transactions are validated by miners Create and use bitcoin account effectively Understand Ethereum blockchain Learn Solidity: Prominent language to develop smart contracts Deploy your private blockchain on web where you can visually see your chains Send transactions between nodes Develop more than one nodes on same blockchain Making your own cryptocurrency Discuss the compelling use-cases of the blockchain Interpret the prospects of blockchain. Assess, how blockchain can improve your business standards. - - - - - - - - - - - - - - - - - - - Who should go for this course? Anyone having basic programming knowledge and has a zeal to learn new technology can take up the course. Students and professionals aspiring to make a career in the Blockchain technology should opt for the course. - - - - - - - - - - - - - - - - Why learn Blockchain? Blockchain is a revolutionary technology. It is an ordered back linked-list data structure of blocks of transactions stored in a decentralized peer- to-peer network. It is the underlying infrastructure for bitcoin, a popular cryptocurrency. In near future, many companies will be adopting blockchain technologies for trading publicly. Apart from bitcoin, it can be used for a wide variety of applications such as tracking ownership, digital assets, physical assets, or voting rights. It can also store and run computer code called ‘smart contracts’. However, blockchain is still new and the communities are still exploring the best ways in which it can be used. For more information, please write back to us at [email protected] Call us at US: 1800 275 9730(toll free) or India: +91 88808 62004 Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka
Views: 9837 edureka!
Bitcoin NodeJS Part 1 - Hello World
 
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Bitcoin NodeJS Tutorial. Intro to NodeJS including installation, creating a basic http server, and fetching the current bitcoin price.
Views: 15503 m1xolyd1an
Smart contracts - Simply Explained
 
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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/59284524822a3d0b19e11134 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be 👍🏻 Like my Facebook page: https://www.facebook.com/savjee 📚 Sources can be found on my website: https://www.savjee.be/videos/simply-explained/smart-contracts/
Bitcoin Scaling Explained: Big Blocks vs. SegWit
 
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Like this video? To get more like it, please donate: 1LUmMWrsLiAGd3tSVeqYLePeJPNZ1ykZCs We'll produce another video once we hit 0.15 BTC Based on this article by Jimmy Song: https://segwit.org/understanding-segregated-witness-905cc712c692
Views: 20261 World Crypto Network
Public & Private Keys Explained (Litecoin/Bitcoin)
 
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By now you have most probably already heard of the term Public & Private keys, but what exactly are they and more to the point what do they even do? Note, 204 Tresvigintillion is the amount of time a standard desktop PC would take to crack a key - via Howseucreismypassword.net Bloomberg Video: http://www.bloomberg.com/news/videos/b/9a33c478-516f-4fc9-8a11-0e9cb7c5b066) 🎧 Music: ♪ Kontinuum - Aware ♪ L'impératrice - Vanille Fraise
Views: 75724 Franklyn [Litecoin]
Simple introduction to smart contracts on a blockchain
 
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Simple introduction to smart contracts on a blockchain
Views: 220434 Chainthat
Bitcoin Protocol Explained - Timestamp Server / Global Ledger
 
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Bitcoin Protocol Paper Playlist: http://www.youtube.com/watch?v=UieiMU-ImvI&list=PLQVvvaa0QuDcq2QME4pfeh0cE71mkb_qz&feature=share All Bitcoin Videos Playlist: http://www.youtube.com/watch?v=UieiMU-ImvI&feature=share&list=PLQVvvaa0QuDebbCxrDPCux6SzC1RET4mF In this short video, the Bitcoin timestamp server / global ledger is discussed. As usual, however, we present ourselves with an ending challenge which is to be covered in the, you guessed it, next video! The idea of the global ledger / timestamp server is so that everyone can share a log of all transactions that have occurred, and so that every node (computer) is aware of the the status of the network. http://seaofbtc.com http://sentdex.com http://hkinsley.com https://twitter.com/sentdex Bitcoin donations: 1GV7srgR4NJx4vrk7avCmmVQQrqmv87ty6
Views: 7557 sentdex
Bitcoin Lesson | Mining
 
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A simple technical explanation of how Mining works in Bitcoin. 00:49 - What is Mining? 08:39 - Hash Function 13:55 - Mining Basics ↳ 23:03 - Target ↳ 28:08 - Mining Simulator 33:20 - Mining Technical 54:46 - Live Coding Example For more simple explanations of how bitcoin works, visit my website: http://learnmeabitcoin.com http://learnmeabitcoin.com/code - Mining Simulator & Command-Line Tools http://learnmeabitcoin.com/glossary/block-header - Block Header If you found this video helpful, please buy me a beer: 1AKDDsfTh8uY4X3ppy1m7jw1fVMBSMkzjP
Views: 2894 learnmeabitcoin
Bitcoin fork Explained
 
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To clarify, we've assembled quick rundown on how different forks work. http://www.coindesk.com/short-guide-bitcoin-forks-explained/ The basics Before we get into the classifications, it's worth noting that bitcoin forks already occur quite regularly. A byproduct of distributed consensus, forks happen anytime two miners find a block at nearly the same time. The ambiguity is resolved when subsequent blocks are added to one, making it the longest chain, while the other block gets "orphaned" (or abandoned) by the network. But forks also can be willingly introduced to the network. This occurs when developers seek to change the rules the software uses to decide whether a transaction is valid or not. When a block contains invalid transactions, that block is ignored by the network, and the miner who found that block loses out on a block reward. As such, miners generally want to mine only valid blocks and build on the longest chain. Following are some of the more common forks and their traits. Hard fork What is it? A hard fork is a software upgrade that introduces a new rule to the network that isn't compatible with the older software. You can think of a hard fork as an expansion of the rules. (A new rule that allows block size to be 2MB instead of 1MB would require a hard fork). What happens? Nodes that continue running the old version of the software will see the new transactions as invalid. So, to switch over to the new chain and to continue to mine valid blocks, all of the nodes in the network need to upgrade to the new rules. What can go wrong? The problem comes when some sort of political impasse arises, and a portion of the community decides to stick by the old rules no matter what. The hash rate, or network computing power, behind the old chain is irrelevant. What matters is that its data (and ruleset) is still perceived to have value, meaning miners still want to mine a chain and developers still want to support it. The ethereum DAO hard fork was a perfect case study of how a community can split over rules. Now, we have two blockchains using a variant of the software – ethereum and ethereum classic, both of which boast a different ethos and a different currency. Soft fork What is it? A soft fork, by contrast, is any change that's backward compatible. Say, instead of 1MB blocks, a new rule might only allow 500K blocks. What happens? Non-upgraded nodes will still see the new transactions as valid (500k is less than 1MB in this example). However, if non-upgraded nodes continue to mine blocks, the blocks they mine will be rejected by the upgraded nodes. This is why soft forks need a majority of hash power in the network. What can go wrong? When a soft fork is supported by only a minority of hash power in the network, it could become the shortest chain and get orphaned by the network. Or, it can act like a hard fork, and one chain can splinter off. Soft forks have been the most commonly used option to upgrade the bitcoin blockchain so far because it's argued they present a lower risk of splitting the network. Past examples of successful soft forks include software upgrades like BIP 66 (which dealt with signature validation) and P2SH (which altered bitcoin's address formatting). User-activated soft fork What is it? A user-activated soft fork (UASF) is a controversial idea that explores how a blockchain might add an upgrade that is not directly supported by those who provide the network's hashing power. The idea with UASF is that instead of waiting for a threshold of support from mining pools, the power to activate a soft fork goes to the exchanges, wallets and businesses who are running full nodes. (In bitcoin, a full node, even if it is not a mining node, is still responsible for validating blocks.) What happens? The majority of major exchanges would need to publicly support the change before it could be written into a new version of code. After that, the new software (which has an activation point in the future) gets installed on nodes that want to participate in the soft fork. What can go wrong? This method requires a much longer lead time to work than a hash-power-triggered soft fork. In fact, it's believed it may take as long as a year or more to write the code and get everyone ready. Further, if the majority of miners end up not ‘falling in line’ and activating the new rules, they could use their overwhelming hash power to split the network. Currently this idea is theoretical and has not been implemented.
Views: 168 Bounce Twins
BitCoin - Cynical Scam or The Saviour of Capitalism
 
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http://www.grahamrowan.com/ It's got regulators in a flap all over the world. Its value is being driven up to speculative levels, over $900 at the time of writing. It could be the hole in the dyke that breaks state monopolies on currencies and makes money printing obsolete. Yet most people don't know a thing about it. One of the challenges you may face is paying $900 for something that doesn't exist. They're not coins, they're just a virtual unit of exchange. They don't sit in a bank account, but transactions in them are sent between bitcoin 'wallets' which are held at digital 'addresses ' with balances that fluctuate over time. Every transaction that ever took place is stored in a vast general ledger called the 'block chain'. If you want to work out the balance held at any bitcoin address, the information isn't held at that address; you must reconstruct it by looking at the block chain. The weird thing is that everyone in the Bitcoin network knows about every transaction and the history of each Bitcoin's flow around the network is fully visible from the time it was first 'created'. One way I saw it described was to think of your Bitcoin address as a safe deposit box with a glass front. Everyone knows what is in it, but only the private key can unlock it to take things out or put things in. When you want to send Bitcoins to someone, you use your private key to sign a message with the input (where the Bitcoin came to you from), the amount and the Bitcoin address of the person it's going to. It goes from your wallet into the Bitcoin network where it's verified by 'miners'. This is the complicated part. When a block of transactions is created, miners apply a mathematical formula to it, turning it into a far shorter, seemingly random sequence of letters and numbers known as a 'hash'. Miners also use the hash of the last block in the block chain to generate the new hash for this block chain. This becomes a kind of digital wax seal confirming that this block -- and every block after it -- is legitimate, because if you tampered with it, everyone would know. Why would people spend time 'solving' these transactions? Because they get rewarded with Bitcoins for their trouble. And good old mathematics maintains the integrity of the system. UK regulators have so far asked for more time to consider where they stand on Bitcoin. Latest noises suggest that Bitcoin won't be treated as money but will be classified as single-purpose 'vouchers', which could carry a VAT liability on any bitcoins that are sold. Germany has classed them as private money, while exempting them from capital gains tax if they are held for more than a year. Government agencies are concerned about the fact that transactions can be carried out anonymously. We're all now money laundering suspects until we prove our innocence, so you can imagine the paranoia this must be creating in our political masters. Bitcoin may or may not turn out to be a viable proposition. But if this turns out to be the first faltering steps in creating an alternative currency that cuts out banks and governments, it could be the salvation of capitalism. Watch out Yellen and Carney. Beware, Obama and Cameron. It's possible you are about to become completely irrelevant. Happy days...
Views: 310 Elite Investor TV
Three Easy Ways to Generate Bitcoin Addresses on your Website
 
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This tutorial goes over 3 easy ways to generating fresh bitcoin addresses on the fly for your website. coinbase.com bitpay.com block.io blockchain.info blockchain.info/q/newkey phpfiddle: http://phpfiddle.org/main/code/g5hu-cez3 phpCoinAddress: https://github.com/zamgo/PHPCoinAddress code example w/ phpcoinaddress: http://pastebin.com/BX0xLfU9
Views: 10186 m1xolyd1an
Compile Bitcoin's source code (0.13)
 
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This short video shows how to compile the bitcoin source code on linux (ubunu). an easy task to do but it take some time (around 15 min) please read the instruction in the official github https://github.com/bellaj/bitcoin/blob/master/doc/build-unix.md in the video i am compiling the version 0.13 Note: you could choose which version to use by typing "get tag" to show you all the released versions of bitcoin then "git checkout v0.**" if you need the version 0.**. If you choose an old version please read the documentation (doc/build-unix.md )in order to install to suit dependencies. when the process finish you get your bitcoind (server) and bitcoin-qt (client). Note : If these prerequisites are missing, the build process will fail.If this happens because you missed a prerequisite, you can install it and then resume the build process. to customize the build process. Type ./configure --help to see the various options: $ ./configure --help `configure' configures Bitcoin Core 0.** to adapt to many kinds of systems. Usage: ./configure [OPTION]... [VAR=VALUE]...
Views: 4678 Badr Bellaj
BB How to write a letter of happiness - Sam
 
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COME JOIN WWW.BITCOINBEAST.ORG AND GET OPPROTUNITY TO EARN 220% MONTHLY WITHOUR DOING ANY TASK. If you want to register, please send me the bellow information to Skype ID: mr.sam168, then I will give you the login detail Real Name in ID card: Email: Phone Number: Country: ‪#‎Bitcoinbeast‬ ‪#‎cryptocurrency‬ ‪#‎litecoin‬ ‪#‎dogecoin‬ ‪#‎bitcoinbeastpays‬ ‪#‎beastians‬ ‪#‎beastteam‬ ‪#‎beastfamily‬ ‪#‎beastcommunity‬ ‪#‎earnbitcoins‬ ‪#‎mmmbeast‬ ‪#‎beastisbeast‬ ‪#‎coinbease‬ ‪#‎beasthelp‬ What is Bitcoin Beast, how to register with bicoin beast? Is bitcoinbeast Scam? How to register with BB How to Activate BB account How to PH in BB How to GH in BB Introduction BB profile How to write LOH in BB How to Verify OTP Code
Views: 230 Bitcoin Beast
The Case for Bitcoin Free Audiobook
 
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Get a full audiobook of your choice, legally and zero cost : http://mkdi.space/11/b019ncepdi Format: Unabridged Written by: Mark Jeffrey Release date: 12/31/2015 Duration: 1 hr and 39 mins Language: English Genre: business, personal finance & investing Summary: In this follow-up to his best-selling Bitcoin Explained Simply, industry expert Mark Jeffrey now makes an argument for what Bitcoin actually means: how it will disrupt banking and other industries and why it is the greatest "store of value" ever invented. The very notion of what we think of as "money" is about to change radically. Imagine programmable money, smart contracts, perfect voting, third-party-less escrow of titles and deeds, side chains (other block chains that interact with Bitcoin's main block chain), and the ability to be your own bank. And while Bitcoin's "store of value" characteristics are expanding and strengthening due to technological advances, other new technologies are simultaneously diminishing the "store of value" characteristics of gold and traditional currencies. In short: Gold is Bronze Age; Bitcoin is Silicon Age. Contact me for any question: [email protected]
Views: 1 Jason Hernandez
How to Create Block Chain Account and Fix Wallet ID Urdu Hindi 00 00 36 00 10 32 00 00 00 00 09 47
 
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Here is the complete tutorial on what is btc wallet how to use btc wallet in urdu hindi Video Link : Your Video Short Link https://youtu.be/ze6WWwd1-JI Please notice that this video is in Urdu or Hindi language which is primary language of Indo Pak. In This Video, you will learn, 1- what is btc wallet how to use btc wallet in urdu hindi 2- what is btc wallet 3- how to use btc wallet 4- how to create account in btc wallet 5- how to send and receive bitcoin through btc wallet 5- introduction of Blockchain bitcoin wallet 6- how to use Blockchain bitcoin wallet Youtube is the only platform where you can earn millions in no time.YouTube is a video-sharing website headquartered in San Bruno, California, United States. The service was created by three former PayPal employees in February 2005. In November 2006, it was bought by Google for US$1.65 billion. Our Social Pages for more similar videos, Tips and News: Face book https://web.facebook.com/FaisalGul68 Blockchain URL https://www.blockchain.com/ Category Howto & Style License Standard YouTube License Category People & Blogs License Standard YouTube License
Views: 20 Faisal Gul
2 How to create a local private multi-node Ethereum network (geth console)  - Ethereum from scratch:
 
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Part two of my hands on tutorial series on Ethereum. In the first video we installed Geth - in this one we actually get our hands dirty and start using it. We are just creating a private local ethereal network - with two nodes - I show how to initialise a new blockchain from a sample genesis block, how to start the javascript console and some basic commands to get you started. I start a miner, show the block height increasing and that the blockchain is being communicated across both separate nodes. This is intended to be a very hands on tutorial so please follow along. ______________________________________________________________ Here is the script from the session. NOTE angle brackets i.e. the GREATER THAN SYMBOL are not allowed in the description so I've replaced with &gt - you need to replace with the GREATER THAN symbol when running the command 0. Set up the environment cd ~ mkdir ethereum echo 'export ethereum_home=/Users/mattthomas/ethereum' (double right arrow) ~/.bash_profile ~/.bash_profile cd ethereum vi $ethereum_home/genesis.json (pasre this with cmd v in edit mode) { "nonce": "0x0000000000000042", "timestamp": "0x0", "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000", "extraData": "0x0", "gasLimit": "0x8000000", "difficulty": "0x400", "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000", "coinbase": "0x3333333333333333333333333333333333333333", "alloc": { } } Save with esc !wq 1. initialise the block geth --datadir "$ethereum_home/youtube1" init "$ethereum_home/genesis.json" 2. start the console geth --datadir "$ethereum_home/chain5" console 2 &gt console.log 3.create a 2nd node geth --datadir "$ethereum_home/youtube1-a" init "$ethereum_home/genesis.json" 4. Start on a different port and specify networkid geth --datadir "$ethereum_home/youtube1-a" --port 30304 --nodiscover --networkid 1234 console 2 &gt console.log 5. get the admin.nodeInfo enode from the second instance and copy it into admin.addPeer in the first node 6. Restart specifying IPC path geth --datadir "$ethereum_home/youtube1-a" --port 30304 --nodiscover --ipcpath "$ethereum_home/youtube1-a/geth.ipc" --networkid 1234 console 2 &gt console.log 7 run get attach to attach another window to the node using the pic file geth attach ipc:$ethereum_home/youtube1-a/geth.ipc 8 Key commands from the javascript console Personal.newAccount() (add password) Miner.start(1) - start mining eth.blockNumber - current block height eth.getBlock(number).miner - miner of block at that number eth.getBalance(account address) - current balance of that account
Views: 28650 Matt Thomas
New Research Claims Satoshi Mined Far Fewer Bitcoins Than Previously Thought
 
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Based on five-year-old research, Bitcoin enthusiasts and critics alike have often held that Satoshi Nakamoto originally mined some 1,000,000 bitcoin in the early days of the network. New numbers from BitMEX Research , however, demonstrates this number could be off by 300,000-400,000 total bitcoin. Breaking Down Lerners Research The oft-cited 1,000,000 coins estimation comes from research conducted by Bitcoin developer and RSK founder Sergio Demian Lerner and presented on Bitcointalk in 2013. Lerner came to this conclusion by examining the Total Network Strength of Bitcoins blockchain in 2009. At 7 MH/s, he argued, Satoshi must have been mining alone in the networks first two weeks, and, since the networks hashrate remained at 7MH/s for the entirety of 2009, he must have been mining alone for the entire year. In the comment section of the forum, Lerner was met with some understandable criticism and skepticism. Counter arguments posit that his MH/s estimation doesnt include a large enough sample size and is based on unreliable block timestamps. Many forum users also recalled mining themselves in the early days of the network. These arguments and anecdotes were enough for community members to shrug off Lerners claims, until a few days later, he came back with more evidence derived from a different method and posted it on his personal blog . Lerners new findings were derived by using Bitcoins ExtraNonce value, a bit of data in coinbase transactions that miners can use if it takes them too long to find a block. Lerners research was accompanied by two graphs that, he argued, illustrate that Satoshi was the only miner working in the networks infancy. As the slopes that represent the ExtraNonce value are of the same size and gradient, the argument goes, its reasonable to assume that they represent the same miner. This method and its findings were enough to convince most of Lerners naysayers; as a result, many assumed that Satoshi netted roughly 1,000,000 bitcoin as a reward for his solitary mining in the early days of his creation. BitMEX Rethinks Lerners Method This week, BitMEX Research revisited Lerners research, although it arrived at a different conclusion. BitMEXResearch does agree with Lerners findings to a point, and they have no problems with his method. But they also argue that his findings only support his argument up to August 2009. After August 2009, the pattern breaks down to some extent. The gradient of the slopes varies considerably (from 1.1 nonces per block to 10 nonces per block),BitMEXResearch explains. At the same time, the height of the slopes is inconsistent and there are many large gaps between them. Therefore, although the image still looks compelling, the evidence that the miner is one entity is somewhat weak, in our view. The research finally concludes that the number of blocks allocated to the dominant miner is grossly overestimated. The authors continue to write that [even] if the slopes are similar, this could be because different entities had a similar setup. Each miner is not independent, in the sense that they are likely to be running the same software or could be using the same popular hardware, which could produce the same pattern. A more likely figure for how many bitcoins Satoshi mined, the report reads, is likely between 600,000 and 700,000. Its important to note that the biggest assumption in this case is that Satoshi is the dominant miner in the networks early days. Theres no hard evidence to confirm this hypothesis, somethingBitMEXacknowledges in its report. The Implications of This Evidence In the Bitcointalk Forum detailing Lerners original evidence, some community members argue that the mining rewards reaped by the first miner (be that person Satoshi or otherwise) is unethical. In effect, these critics say, these rewards act like a pre-mine of sorts. With no one else on the network, Satoshi would have been able to mine without competition and, as a result, he accumulated a treasure trove of bitcoin. Whether this critique is valid or not, the new evidenceBitMEXpresents may partly mitigate these concerns. Though these same critics may find little solace in the notion that Satoshi or the first miner may only own 30-40 percent fewer coins than originally evidenced, it appears as though, at least from August 2009 on, Satoshi wasnt the only miner on the network. BitMEXcalls into question just how many blocks Satoshi mined, meaning that the first years block rewards may not have been so centrally allocated as originally assumed. Under this argument, the network was more active in its nascency thanks to a handful of early adopters, so Satoshi couldnt have monopolized it as some critics claim. #lerner #mining #BitMEX #satoshi #Bitcoin #RSK
Views: 6 bitcoin news
How and Why Bitcoin Will Go Mainstream – The Best of Bitcoin, Part 1
 
01:02:26
Subscribe to stay up to date with the latest videos ► https://www.sbry.co/suBiH Episode 32 - How and Why Bitcoin Will Go Mainstream – The Best of Bitcoin, Part 1 There’s little doubt that one topic dominated financial headlines in 2017…and it took most investors by complete surprise. Bitcoin’s parabolic rise from $997 on January 1, 2017 to almost $20,000 this year has been nothing short of spectacular. In part 1 of the Best of Bitcoin, you’ll hear from Wall Street Journal senior writer Paul Vigna, author of the Age of Cryptocurrency and the upcoming Truth Machine. Paul helps you understand the origins of Bitcoin and how the underlying decentralized blockchain technology running it has the power to reinvent traditional financial and social structures. Porter interviews perma-bear David Tice who tells you why he thinks bitcoin is real, why it’s here to stay, and how it offers a complete paradigm shift for how businesses can operate. Tama Churchouse, editor of Crypto Capital and senior analyst at Stansberry Churchouse Research joins Buck and Porter to tell you exactly why Asia is the melting pot of crypto activity, how to get started in Bitcoin, which crypto assets to watch, and why learning the difference between Bitcoin, blockchain, and token function is crucial before investing in the crypto space. www.stansberrybitcoin.com Be sure to click here to never miss an episode ↓ SPOTIFY ► https://www.sbry.co/ufnNP GOOGLE PLAY MUSIC ► https://www.sbry.co/lkwhp ITUNES ► https://www.sbry.co/7OQ79 SOUNDCLOUD ► https://www.sbry.co/jHn5h STITCHER ► https://www.sbry.co/tEkL5 Check out NewsWire’s Investors MarketCast ↓ GOOGLE PLAY MUSIC ► https://www.sbry.co/dzzKq APPLE ITUNES ► https://www.sbry.co/GoCV0 STITCHER ► https://www.sbry.co/s86p1 ———————————— Follow us on Twitter ► https://www.sbry.co/p11ih Join our Facebook Community ► https://www.sbry.co/fMckK Check out our website ► https://www.sbry.co/wUAye Check out Stansberry NewsWire ►https://www.sbry.co/IhNeW Check out Health and Wealth Bulletin ► https://www.sbry.co/iHRmD Check out Extreme Value ► https://www.sbry.co/EvIiH ———————————— SHOW HIGHLIGHTS: 1:49 Buck explains the special nature of this end-of-year podcast and gets right into the No. 1 financial development that took almost everyone by surprise. The experts he and Porter are re-running for part one of this "Best of Bitcoin" segment will demystify three crucial questions: what the blockchain revolution will mean for you, why it's here to stay, and the best way for you to profit today. 9:40 Paul Vigna explains the most important feature of blockchain technology: the idea that you have an "open ledger" database that's maintained by a network of computers all running the exact same software that all make copies of any transaction made on any one of them. The end of financial privacy? Maybe – but here's why what you get in return is far more valuable. 12:25 Buck asks Paul why Bitcoin can't be counterfeited. Paul explains why Bitcoin's scarcity is a core feature of the currency, going back to creator Satoshi Nakamoto's 21 million Bitcoin limit and why if anyone tried to counterfeit Bitcoins, every other user would instantly know. 15:11 Paul explains the two major benefits of Bitcoin. "Bitcoin's entire existence in history is really a reaction to the existing monetary system and the existing financial system. It's designed to get around things its creator saw as problems." 18:25 Why does law enforcement love Bitcoin? Paul shares the story of how Bitcoin's radical transparency led them to the infamous drug dealer "Dread Pirate Roberts" and why it's not a good vehicle for committing crimes as many assume. 41:45 Buck wonders what happens to Bitcoin and other digital currencies when government gets antsy and decides to throw up roadblocks – or even ban it altogether. Porter explains the government's single biggest deterrent to standing in blockchain's way. 52:06 Porter asks cryptocurrency expert Tama Churchouse why, when Bitcoin is already un-hackable, impossible to counterfeit, and immune from central banking madness, more and more cryptocurrencies keep popping up. What do they have that Bitcoin doesn't?
How to Create a Free Online Bitcoin Wallet
 
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Check out my facebook at: https://www.facebook.com/pages/All-How-2s/198429346974010 or my twitter: https://twitter.com/AllHow2s Or my website where I have a lot of other great tutorials (such as how to take a screenshot, or how to get the start button back on Windows 8): www.allhow2s.com This video will show you how to create a free online bitcoin wallet, where you can send, receive and store bitcoins in. AN IMPORTANT NOTE: Treat this the same as a bank account, but even then much more securely than that. If a hacker gained access to your account, or you gave out your password, your bitcoins could be stolen, and there is ABSOLUTELY nothing you can do in that event. There are no charge backs, and no one will reimburse you. Authorities would not even be able to track down the person who stole them. So be careful! With that said, these bitcoin wallets are very secure, and can be accessed from your internet browser, or from an app on your phone (blockchain app). The site uses a very cool authentication system that means that even they don't have access to your bitcoins, only the person with the password does. Just please read up on the security information of the wallet before you store a large amount of bitcoins there, as I don't take any responsibility for any coins you might lose. I have used this wallet for a while with no issues. The site to go to is blockchain.info. Then click the wallet option at the top right. Then, choose the create wallet option at the top left. Here you can enter an email if you choose (I would recommend entering one, but if you want to remain completely anonymous then you can). Then, enter a password that is at least 10 characters long, has an uppercase letter, and a number. After this, hit continue. It should then pop up with a page with a pneumonic device that can be used for password recovery. WRITE THIS DOWN OR PRINT IT OUT! It is your only option in the case of a lost/forgotten password. After this hit continue, and then just type in your password to log into your wallet. Here you can do all the things you would do with any other bitcoin wallet, such as receive and send coins. You can also set up two factor authentication in the settings here, so that it requires a second password for more protection. Your bitcoin address that you can receive bitcoins on will be on the front page of your wallet in the form of a long string of letters and numbers, as well as a QR code (that can be scanned by a phone). This is the address you can paste into a site such as http://www.bitvisitor.com/?ref=1H4v3X6Yf4SjUndU4r18ybvzzFfdwfoVk8 which will then send you bitcoins. This is also the bitcoin address you would input to a mining pool to receive the bitcoins you have mined. You can also send bitcoins from this wallet. All you have to do is copy and paste the address you want to send bitcoins to in the send address box. (For instance my address is 1H4v3X6Yf4SjUndU4r18ybvzzFfdwfoVk8 so you could copy and paste that in to send me bitcoins. Keep in mind that there is a "Miner's fee" for sending bitcoins. This fee supports the bitcoin network and keep it operating well. Currently the fee is .0001 bitcoins (about 10 cents) per transaction. If you have any issues just leave a comment below and I will get back to you!
Views: 34098 howtwos101
An Open Source History: from Linux to Bitcoin's Blockchain | Rusty Russell | TEDxAdelaide
 
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Blockchains are an exciting solution to an old problem, but the first blockchain was produced and is still maintained by a group of volunteers, releasing world-class software for all to use freely.  Rusty Russell uses his 20 years of experience writing community-produced software to describe how we got here, and just possibly, what will happen in the future. Rusty Russell is an Australian free software programmer and advocate, best known for his work alongside Linux luminaries like Linus Torvalds over the last few decades. He founded the influential linux.conf.au series of conferences in 1999 which continue to this day, and is responsible for dozens of projects which contribute to the productivity of programmers around the world. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx
Views: 3635 TEDx Talks
block chain software
 
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www.stelware.com/ block chain software
Views: 103 Amit Mallik
Block 60K
 
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Battling it out at the dawn of the third epoch! Will Python sync to the chain or with C++ mine block 60000 first? Sample my quite awesome video skills and find out!
Views: 380 Gav Would
Python 3 Programming Tutorial: If Statement
 
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The if statement is one of the most basic forms of logic that can be introduced into your program. The idea of the if statement is to assess whether something is the case, and, if it is, then to perform the following block of code within the statement. Sample code for this basics series: http://pythonprogramming.net/beginner-python-programming-tutorials/ Python 3 Programming tutorial Playlist: http://www.youtube.com/watch?v=oVp1vrfL_w4&feature=share&list=PLQVvvaa0QuDe8XSftW-RAxdo6OmaeL85M In this tutorial you are shown how to use the if statement in python 3.3. http://seaofbtc.com http://sentdex.com http://hkinsley.com https://twitter.com/sentdex Bitcoin donations: 1GV7srgR4NJx4vrk7avCmmVQQrqmv87ty6
Views: 153264 sentdex
Mt. Gox Bitcoin exchange goes offline after $350 million hack
 
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Mt. Gox, once the world's largest bitcoin exchange, is now offline after losing about $350 million to a two year-long hack that went undetected by the company. Mt. Gox said that it was experiencing technical issues and recently stopped all customer withdrawals of bitcoin after it noticed what it called "unusual activity". The "unusual activity" turned out to be hackers that were robbing the company blind. The hacking attack is explained in a leaked Gox "crisis strategy draft" plan that was published Monday by Ryan Selkis, a bitcoin entrepreneur and blogger. The document claims that Mt. Gox is insolvent after losing 744,408 bitcoins, worth about $350 million at Monday's market prices. The theft is a setback for supporters of Bitcoin, who have been pushing for widespread adoption of the digital currency. Mt. Gox posted a statement on its website Tuesday afternoon. "In the event of recent news reports and the potential repercussion on MtGox's operations and the market, a decision was taken to close all transactions for the time being in order to protect the site and our users. We will be closely monitoring the situation and will react accordingly," it said. Mt. Gox stopped transfers of bitcoin to external addresses on Feb 7. The company said it found a bug that allowed hackers to fool the transaction process into sending double the correct amount of bitcoins. According to the leaked document, hackers were even able to take out bitcoins from supposedly secure "cold" wallets that Mt. Gox stored offline. The documents said, "the cold storage has been wiped out due to a leak in the hot wallet." The theft is a huge blow to those with massive Bitcoin boners, as serious investors will no doubt continue to write off Bitcoin. Might as well just park your money in the bank where it's safe. ----------------------------------------­----------------------------------------­ Welcome to TomoNews, where we animate the most entertaining news on the internets. Come here for an animated look at viral headlines, US news, celebrity gossip, salacious scandals, dumb criminals and much more! Subscribe now for daily news animations that will knock your socks off. For news that's fun and never boring, visit our channel: https://www.youtube.com/user/TomoNewsUS Subscribe to stay updated on all the top stories: http://www.youtube.com/subscription_center?add_user=TomoNewsUS Stay connected with us here: Facebook http://www.facebook.com/TomoNewsUS Twitter @tomonewsus http://www.twitter.com/TomoNewsUS Google+ http://gplus.to/TomoNewsUS Instagram @tomonewsus http://instagram.com/tomonewsus -~-~~-~~~-~~-~- Please watch: "Crying dog breaks the internet’s heart — but this sad dog story has a happy ending" https://www.youtube.com/watch?v=4prKTN9bYQc -~-~~-~~~-~~-~-
Views: 4695 TomoNews US
Rick Astley - Never Gonna Give You Up (Video)
 
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Rick Astley - Never Gonna Give You Up (Official Music Video) - Listen On Spotify: http://smarturl.it/AstleySpotify Learn more about the brand new album ‘Beautiful Life’: https://RickAstley.lnk.to/BeautifulLifeND Buy On iTunes: http://smarturl.it/AstleyGHiTunes Amazon: http://smarturl.it/AstleyGHAmazon Follow Rick Astley Website: http://www.rickastley.co.uk/ Twitter: https://twitter.com/rickastley Facebook: https://www.facebook.com/RickAstley/ Instagram: https://www.instagram.com/officialric... Lyrics We're no strangers to love You know the rules and so do I A full commitment's what I'm thinking of You wouldn't get this from any other guy I just wanna tell you how I'm feeling Gotta make you understand Never gonna give you up Never gonna let you down Never gonna run around and desert you Never gonna make you cry Never gonna say goodbye Never gonna tell a lie and hurt you We've known each other for so long Your heart's been aching, but You're too shy to say it Inside, we both know what's been going on We know the game and we're gonna play it And if you ask me how I'm feeling Don't tell me you're too blind to see Never gonna give you up Never gonna let you down Never gonna run around and desert you Never gonna make you cry Never gonna say goodbye Never gonna tell a lie and hurt you Never gonna give you up Never gonna let you down Never gonna run around and desert you Never gonna make you cry Never gonna say goodbye Never gonna tell a lie and hurt you (Ooh, give you up) (Ooh, give you up) Never gonna give, never gonna give (Give you up) Never gonna give, never gonna give (Give you up) We've known each other for so long Your heart's been aching, but You're too shy to say it Inside, we both know what's been going on We know the game and we're gonna play it I just wanna tell you how I'm feeling Gotta make you understand Never gonna give you up Never gonna let you down Never gonna run around and desert you Never gonna make you cry Never gonna say goodbye Never gonna tell a lie and hurt you Never gonna give you up Never gonna let you down Never gonna run around and desert you Never gonna make you cry Never gonna say goodbye Never gonna tell a lie and hurt you Never gonna give you up Never gonna let you down Never gonna run around and desert you Never gonna make you cry Never gonna say goodbye Never gonna tell a lie and hurt you"
Views: 479311170 RickAstleyVEVO
An Introduction to Blockchain with Mark Russinovich : Build 2018
 
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In this session, Mark explains how blockchains work, including how they use hashes, transactions, blocks and proof-of-work consensus algorithms to build distributed ledgers. He presents the capabilities of some of the most common blockchain networks, then describes how the COCO Framework addresses their limitations to make blockchains suitable for a wide variety of business consortiums. Create a Free Account (Azure): https://aka.ms/c9-azurefree
Views: 19818 Microsoft Developer
What is Bitcoin - Bitcoin Mining - How bitcoin works - Explained - In Hindi
 
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What is Bitcoin, what is bitcoin mining, how bitcoin works I am going to explain you in Hindi Bitcoin was created by the "Satoshi Nakamoto". Bitcoin is a form of digital currency, created and stored electronically. No institution or country controls the bitcoin(decentralised currency). Bitcoins are not printed like normal currency for example dollars, euro, pounds, Indian rupee etc. Bitcoin is produced digitally by people by solving complex mathematical problems. It’s a type of cryptocurrency. Or we can call as mining by using computing power. Cryptocurrency A form of currency based on mathematics alone. Instead of fiat currency, which is printed, cryptocurrency is produced by solving mathematical problems based on cryptography. This can be used to purchase goods and services, the bitcoins can be purchased online and can be sell online. You cannot make unlimited bitcoins as the protocol or coding associated with it does not do so, the coding or algorithm derived was in such a way that only 21 Million bitcoins will be produced in the world. However the bitcoin can be divided into smaller parts (the smallest divisible amount is one hundred million of a single bitcoin and is called satoshi named on founder). When your bitcoins are sent, there’s no getting them back, unless the recipient returns them to you. They’re gone forever. Bitcoin transactions are sent from and to electronic bitcoin wallets, and are digitally signed for security. There are no bitcoins, only records of bitcoin transactions. To send bitcoins, you need two things: a bitcoin address and a private key. A bitcoin address is generated randomly, and is simply a sequence of letters and numbers. The private key is another sequence of letters and numbers, but unlike your bitcoin address, this is kept secret. How does Bitcoin mining work Lots of people send bitcoins over the internet all the time. It's very difficult to track the transactions like who sent to whom, so the bitcoin network takes a list of all transactions for a particular period of time and list them in a block. Now it’s a miners job to confirm those transactions and write them into general ledger. How miners make Bitcoins All miners compete among themselves to create a Hash by a code specifically written to mine blocks. Every time someone successfully creates a hash 25 bitcoins are given as reward and blockchain is updated. This is the incentive to mine and keep transactions working. Creating hash is easy but bitcoin network makes it more difficult over the time as part of the algorithm used. Bitcoin protocol does not accept old hash, its demands the hash to look some different way having some zeroes in starting etc.. Miners use a random piece of data(called nonce) to create hash\blocks they don’t mess with other people data. Nonce used with the transaction data to create a hash.If the hash doesn’t fit the required format, the nonce is changed, and the whole thing is hashed again. It can take many attempts to find a nonce that works, and all the miners in the network are trying to do it at the same time. That’s how miners earn their bitcoins. How to Buy\Sell Bitcoins Today in many countries we have bitcoin exchanges where you can online buy and sell bitcoin easily. Bitcoin wallets are used to store bitcoins. ASIC An Application Specific Integrated Circuit is a silicon chip specifically designed to do a single task. In the case of bitcoin, they are designed to process SHA-256 hashing problems to mine new bitcoins. Bitcoin ATM A bitcoin ATM is a physical machine that allows a customer to buy bitcoin with cash. Hash A mathematical process that takes a variable amount of data and produces a shorter, fixed-length output. A hashing function has two important characteristics. 1. It is mathematically difficult to work out what the original input was by looking at the output. 2. Changing even the tiniest part of the input will produce an entirely different output. Good site https://www.bitcoinmining.com/getting-started/ Bitcoin Mining Software https://www.bitcoinmining.com/bitcoin-mining-software/ Bitcoin exchanges List https://bitcoin.org/en/exchanges Please watch the complete video for proper understanding. If you like my video please make me happy by sharing it on social media and subscribing my YouTube channel Links to things I use to create my videos Samson Go Mic : http://amzn.to/2naBtLM Pop Filter : http://amzn.to/2nAxB7N JBL Earphones : http://amzn.to/2naHx7i Microsoft Office 365 : http://amzn.to/2nojNNc Memory Card : http://amzn.to/2naCzar HP Laptop : http://amzn.to/2nG2XqJ Share, Support, Subscribe!!! Youtube: https://www.youtube.com/c/TECHBULU Twitter: https://twitter.com/techbulu Facebook: https://www.facebook.com/techbulu/ Pinterest: https://www.pinterest.com/techbulu/ Google Plus: https://goo.gl/sZhdc0 BlogSite: http://www.techbulu.com/
Views: 1834 TECH BULU