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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: 35545 djp3
Bitcoin transaction demo
 
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Bitcoin transaction demo
Views: 4074 luke millard
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: 209758 Khan Academy
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: 2638955 CuriousInventor
How transactions are verified in Bitcoin Blockchain - Longest chain rule explained
 
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How transactions are verified in Bitcoin Blockchain - Longest chain rule explained Watch our earlier Blockchain videos Blockchain Simplified: https://www.youtube.com/watch?v=LWAYveDotb0&t=1s Blockchain Technology explained: https://www.youtube.com/watch?v=gVLIentRlIk&t=1s Have you wondered how transaction get approved in a Bitcoin block chain? Why you need to wait for 3 to 6 confirmations for the transactions to appear in your wallet. This video attempts to explain how a Bitcoin transaction is approved and the process behind it. Let’s assume Mr. Gobish transferred Bitcoin worth 100$ from one crypto exchange to another. Once he does the transfer, the transaction message is sent to the network and passed around all the network participants which are also called nodes. This is added to the transaction pool. Currently, the transaction is in an ‘unconfirmed’ state. All the transactions in the transaction pool will be in an unconfirmed status. Now we will understand who is a miner. In simple words, those who validate new transactions and record them on the global ledger of Blockchain are called miners and this activity is called mining. To make it simple, let’s assume there are currently 3 miners who are trying to confirm the transactions from transaction pool including Gobish’s transaction of $ 100. Normally miners will select those transactions which will generate a higher transaction fees for them. Currently, the numbers of confirmed blocks in the Blockchain public ledger is 998. Once the miners identify that the 998th block is a valid block they will try to create a candidate block by adding unconfirmed transactions from the transaction pool. Now these miners are trying to add the 999th block. To add the blocks they have to solve a complex mathematical problem. This is known as Proof of Work (POW). Let’s assume all the 3 miners were able to solve this problem and have Proof of Work. Now we have 3 different candidate blocks, let’s call them 999 A, 999B and 999C Now which of these block will form part of the valid block will depend upon the longest chain rule. Let’s understand what is longest chain rule is. Now there are other miners who are trying to create other valid blocks and based upon the speed by which a block is created others miners will keep on adding their blocks on top of the earlier blocks. Here in this case Minor C had a better processor which was able to create a block faster than the miner A and B and hence new blocks were created on top of the block 999C. Now the longest chain is the one created by 999C and it will be keep on adding other blocks like 1000, 1001 and so on as miner C solved the proof of work before miner A and B. So what happens to the blocks 999A and 999B? They have to create the Proof of Work again with new set of transactions from the transaction base. Each confirmations represent adding each block. Each confirmation will take on an average of around 10 minutes or more per block. Applying the longest chain rule and proof of work, unconfirmed transaction will become a confirmed transaction and added to the Blockchain ledger Once the blocks are added miner will receive a transactions fees and block fees which will be the new Bitcoin created as an incentive for approving the transactions. Block rewards will be reducing every year and in the end only transaction fees will be there as new Bitcoins will not be created. We will get in to more details about mining and the incentives in our subsequent video.
Views: 7677 FINMAESTRO
Bitcoin - Transaction records
 
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The basic mechanics of a bitcoin transaction between two parties and what is included within a given bitcoin transaction record. More free lessons at: http://www.khanacademy.org/video?v=9-9_v1wSPBQ 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: 111526 Khan Academy
Structure of a Block [Blockchain & Cryptocurrency (Bitcoin, Ethereum)]
 
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Full Course On Udemy Discounted Coupon 95% OFF - https://www.udemy.com/bitcoin-ethereum-blockchain/?couponCode=YOUTUBE Like our content and want to support us more directly? Help Us, Help You! https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=6DF2Q8TR5FB3E Udemy Coupons "Here are coupons for all of my udemy courses: -Three.js [50% OFF] - https://www.udemy.com/threejs-programming/?couponCode=10ONLY -Flappy Bird SFML Clone [50% OFF] - https://www.udemy.com/flappy-bird-sfml/?couponCode=50-OFF -HTML [50% OFF] - https://www.udemy.com/html-tutorials/?couponCode=50_P_OFF -CSS [50% OFF] - https://www.udemy.com/css-course/?couponCode=CSS50POFF -Tic-Tac-Toe Cocos2d-x [50% OFF] - https://www.udemy.com/tic-tac-toe-cocos2d-x-cpp/?couponCode=TTTCC2D-50OFF -Tic-Tac-Toe SFML [50% OFF] - https://www.udemy.com/tic-tac-toe-sfml/?couponCode=SFMLTTT-50OFF -Cocos2d-x Game Development [90% OFF] - https://www.udemy.com/cocos2d-x-v3-cpp/?couponCode=90-PERCENT-OFF -A-Frame WebVR (Virtual Reality) [75% OFF] - https://www.udemy.com/a-frame-webvr/?couponCode=75_PERCENT_OFF -Modern OpenGL [80% OFF] - https://www.udemy.com/opengl-tutorials/?couponCode=10GLCODE -Bootstrap 4 [80% OFF] - https://www.udemy.com/bootstrap-web/?couponCode=80-OFF -C++ Programming [90% OFF] - https://www.udemy.com/cpp-course/?couponCode=BIG_SAVING_CPP -Ionic AngularJS [75% OFF] - https://www.udemy.com/ionic-course/?couponCode=75_OFF -Swift Programming [87.5% OFF] - https://www.udemy.com/swift-ios-mac/?couponCode=DISCOUNT_10 For all new courses feel free to ask for a coupon, enjoy. If you like this stuff, as always, show the love through comments, likes, favorites, subscriptions, etc. Thousands of free videos at www.sonarlearning.co.uk If you have any questions feel free to post them at http://www.sonarlearning.co.uk/questions.php Our Website http://www.sonarsystems.co.uk/ Facebook - https://www.facebook.com/pages/Sonar-Systems/581403125243822 Twitter - https://twitter.com/SonarSystems Google+ - https://plus.google.com/+SonarsystemsCoUk/ Donate - https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=6DF2Q8TR5FB3E Our games made using Cocos2d-x ------------------------------------------------------ iOS: https://itunes.apple.com/us/artist/sonar-systems/id672545941 Google Play: https://play.google.com/store/apps/developer?id=Sonar+Systems Check out our Cocos2d-x book to learn how to make games https://www.packtpub.com/game-development/cocos2d-x-game-development-essentials
Views: 732 Sonar Systems
What is the merkle tree in Bitcoin?
 
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Explanation of cryptographic hash: https://youtu.be/IVqD-_QskW0?t=1m13s 13uJjYF12aRVdwaiTmALx5XDfguQ9MnYtK
Views: 19083 Keifer Kif
The Bitcoin and Blockchain Technology Explained
 
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A block chain is a transaction database shared by all nodes participating in a system based on the Bitcoin protocol. A full copy of a currency's block chain contains every transaction ever executed in the currency. With this information, one can find out how much value belonged to each address at any point in history. ------------------------------------------------------------------- BUY BITCOIN SAFELY HERE: http://bit.ly/BuyBitcoinNow ------------------------------------------------------------------- REGISTER FOR A COINBASE ACCOUNT: http://bit.ly/CoinbaseBitcoinSignup ------------------------------------------------------------------- Every block contains a hash of the previous block. This has the effect of creating a chain of blocks from the genesis block to the current block. Each block is guaranteed to come after the previous block chronologically because the previous block's hash would otherwise not be known. Each block is also computationally impractical to modify once it has been in the chain for a while because every block after it would also have to be regenerated. These properties are what make double-spending of bitcoins very difficult. The block chain is the main innovation of Bitcoin. Honest generators only build onto a block (by referencing it in blocks they create) if it is the latest block in the longest valid chain. "Length" is calculated as total combined difficulty of that chain, not number of blocks, though this distinction is only important in the context of a few potential attacks. A chain is valid if all of the blocks and transactions within it are valid, and only if it starts with the genesis block. For any block on the chain, there is only one path to the genesis block. Coming from the genesis block, however, there can be forks. One-block forks are created from time to time when two blocks are created just a few seconds apart. When that happens, generating nodes build onto whichever one of the blocks they received first. Whichever block ends up being included in the next block becomes part of the main chain because that chain is longer. More serious forks have occurred after fixing bugs that required backward-incompatible changes. Blocks in shorter chains (or invalid chains) are not used for anything. When the bitcoin client switches to another, longer chain, all valid transactions of the blocks inside the shorter chain are re-added to the pool of queued transactions and will be included in another block. The reward for the blocks on the shorter chain will not be present in the longest chain, so they will be practically lost, which is why a network-enforced 100-block maturation time for generations exists. These blocks on the shorter chains are often called "orphan" blocks. This is because the generation transactions do not have a parent block in the longest chain, so these generation transactions show up as orphan in the listtransactions RPC call. Several pools have misinterpreted these messages and started calling their blocks "orphans". In reality, these blocks have a parent block, and might even have children. Because a block can only reference one previous block, it is impossible for two forked chains to merge. • How do Bitcoin Transactions Work? http://www.coindesk.com/information/how-do-bitcoin-transactions-work/ ------------------------------------------------------------------- DID YOU LIKE THIS VIDEO? ------------------------------------------------------------------- Enjoy this video? Click "Mark as good" and give your "LIKE". Subscribe to our channel and follow our publications. Consider making a small Bitcoin donation to this address: 3C2Ti2wegJDFw1Kp3w71Mtr9bKkhyCz8fa. ------------------------------------------------------------------- BUY BITCOIN SAFELY HERE: http://bit.ly/BuyBitcoinNow ------------------------------------------------------------------- REGISTER FOR A COINBASE ACCOUNT: http://bit.ly/CoinbaseBitcoinSignup ------------------------------------------------------------------- ------------------------------------------------------------------- Video credits ------------------------------------------------------------------- http://www.bitcoinproperly.org/ Tags: BTC Bitcoin Bit coin Altcoin Cryptocurrency Buy Bitcoin Sell Bitcoin Bitcoin trading Bitcoin value Bitcoin wallet Bitcoin blockchain Blockchain Satoshi Nakamoto Digital currency
Views: 395420 Rodrigo Henrik
Talk on "The UTXO Transaction Model of Blockchain" | Bitcoin Transaction | Bitcoin Script
 
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The presentation is from my talk on "The UTXO transaction model of blockchain" given at Pramati Technology office in Chennai and was broadcasted to Hyderabad and Bangalore. -------------------------------------------------------------------------------- In this talk I have discussed the following : - Overview of Blockchain (a very basic intro) - What are the transaction models? - Account and UTXO model intro - Designing data structure for UTXO transaction example - The fish transaction - Comparing that DS of the actual Bitcoin transaction. - Understanding Bitcoin scripts. - Bitcoin scripts execution on Stack. -------------------------------------------------------------------------------- Subscribe, Like or do whatever only if you understood the concept. Otherwise, drop comments with your questions.
Views: 75 Vishwas Bhushan
Bitcoin Data Structure Explained – Blockchain Data Structure – What Is A Data Structure?
 
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In this video, we talk about data structures, and I briefly describe the blockchain data structure, and how it can be compared to other data structures. As we know, Bitcoin is built upon the blockchain, and to understand bitcoin it is crucial to understand the blockchain. PEACE! ---------------------------------------------------------------------------------------------- JOIN NO PMO NATION 👬: ---------------------------------------------------------------------------------------------- 👬 Instagram: https://www.instagram.com/nopmonation/ ---------------------------------------------------------------------------------------------- JOIN THE ARMY OF HAPPIER AND STRONGER PEOPLE 👬: ---------------------------------------------------------------------------------------------- 🎓 SUBSCRIBE ON YOUTUBE: https://goo.gl/JDWLKZ 🎓 JOIN US ON SLACK: https://goo.gl/srBTka 🎓 JOIN MY EXCLUSIVE MAILING LIST: http://eepurl.com/di4dNj ---------------------------------------------------------------------------------------------- POPULAR EDUCATION SERIES 💝: ---------------------------------------------------------------------------------------------- 🎓 MASTER NOFAP: https://goo.gl/z6E6HU 🎓 BECOME HAPPIER: https://goo.gl/DZ4cps 🎓 ATTRACT WOMEN: https://goo.gl/MKxdeS 🎓 MACHINE LEARNING: https://goo.gl/hULpKQ 🎓 ARTIFICIAL INTELLIGENCE: https://goo.gl/pzCWpU ---------------------------------------------------------------------------------------------- HOW TO ASK OSCAR QUESTIONS 🎤: ---------------------------------------------------------------------------------------------- 👬 MESSAGE ME ON INSTAGRAM: https://www.instagram.com/oscaralsing/ 👬 ASK ME ON SLACK: https://goo.gl/srBTka Linkedin: https://www.linkedin.com/in/oscaralsing/ Facebook: https://www.facebook.com/oscaralsingcom Website: http://www.oscaralsing.com ---------------------------------------------------------------------------------------------- PRODUCTS I LOVE ❤️: ---------------------------------------------------------------------------------------------- LIFE-CHANGING BOOKS: https://goo.gl/MMH4XG MY CAMERA/PROGRAMMING GEAR: https://goo.gl/WPCkZr ---------------------------------------------------------------------------------------------- ABOUT OSCAR 💝: ---------------------------------------------------------------------------------------------- Oscar is a leader, educator and programmer specialised in Artificial Intelligence and Machine Learning who strives to build a world where all leadership spawns from an intrinsic compassion for others. He is heavily interest in mindfulness and meditation and is a daily Brazilian Jiu-Jitsu practitioner. Furthermore, he Loves lifting heavy things and reads a lot of books and believes in a world where compassion and mutual understanding and respect permeate all of our actions. 🎉 Leader of the Year (2017, All Swedish Students) 🎉 10/100 @ Sweden's Top Future 100 Leaders 2018 🎉 37/100 @ Sweden's Top Future 100 Leaders 2017
Views: 439 Oscar Alsing
Blockchain/Bitcoin for beginners 7: Blockchain header: Merkle roots and SPV transaction verification
 
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How are transactions stored (and recorded) in the Blockchain blocks? Using a concept called a Merkle tree - in this video I break it down in depth with a simple example and show how a SPV node (Simple Payment Verification) node that does not keep a full copy of the blockchain transaction history - just the headers of the blocks - can verify from an adjacent (but not necessarily trusted) full node, which block a transaction is part of just from knowing the MERKLE PATH from the full node. http://chimera.labs.oreilly.com/books/1234000001802/ch07.html
Views: 12210 Matt Thomas
Blockchain Basics Explained - Hashes with Mining and Merkle trees
 
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A brief and simple introduction to the hash function and how blockchain solutions use it for proof of work (mining) and data integrity (Merkle Trees).
Views: 210992 Chainthat
Bitcoin: Transactions - Part6
 
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In this video, we go over the structure of a transaction. This vide has been split into three parts to allow for better user consumption.
BES171/Money#3: Bitcoin Simplified, Blockchain technology how useful in Banking transactions?
 
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- Bitcoin is in news again because of its Blockchain technology, which is now used by ICICI, Yes Banks and others for maintaining ledgers. - What is Bitcoin? Why it was issued? How does it work? How is it used in illegal activities? What is bitcoin mining and hashrate? - What are the applications of bitcoin's blockchain technology for financial transactions? - What is the stand of RBI and Ratan Watal committtee on the blockchain technology? Next lecture: Since demonetization the focus has been on promoting the usage of bank money and digital payments; therefore, next time we'll dwell further into theory and current affairs on these issues, including recommendations of Ratan Watal and Chandrababu Naidu Committees, and Economic Survey for promotion of digital payment, and the recommendation have been implemented in Budget-2017 to reduce cash-transaction. Powerpoints available under Mrunal.org/download - Faculty Name: You know who - Powerpoint available at http://Mrunal.org/download goto Mediafire folder - "Powerpoint" -"1_Economy_Mrunal" - there goto "BES17_Budget_Eco_Survey" and you'll find the powerpoints. - Exam-Utility: UPSC IAS IPS Civil service exam, Prelims, CSAT, Mains, Staff selection SSC-CGL, IBPS, SBI, RBI and other banking exams; LIC, EPFO, FCI & other PSU exams; CDS, CAPF and other defense services exams; GPSC, MPPCS, RPSC & other State PCS services exams with Indian Economy, Budget, Banking, Public Finance in its syllabus- with descriptive questions and answer writing.
Views: 275611 Mrunal Patel
Make Your Bitcoin Transactions Fully Anonymous | Blockchain Central
 
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This week on Blockchain Central: we will talk about Bitcoin tumbler or mixer. What are mixers? What is their purpose? Are they legal? Let's find out! __ 'Blockchain Central' is your #1 trusted source for everything crypto. Our host Blue will guide you through weekly news about the political, legal and financial sides of crypto currencies like Bitcoin and Ethereum as well as recent developments in Blockchain technology, Initial Coin Offerings (ICOs) and new coins/tokens. This channel is produced in cooperation with the Frankfurt School Blockchain Center and their experts working on Blockchain technology and DLT. This content does neither represent financial, legal or tax advice, nor is it supposed to be understood or interpreted as solicitation to buy or sell any securities, coins or tokens! Subscribe to our channel to watch a new video every Monday & Thursday!
Views: 80 Blockchain Central
Introduction to Bitcoin, Blockchain and Decentralized Technology
 
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I'm excited to announce a new course available at pluralsight: https://app.pluralsight.com/library/courses/bitcoin-decentralized-technology?utm_source=youtube&utm_medium=video&utm_campaign=authordemo Outline Module 1: Bitcoin Concepts and Basic Use - Demo: buying a digital video online - What gives Bitcoin value? - Big Ideas: openness, privacy, decentralized, cryptocurrency, programmable - Basic structure: a collectively maintained ledger - Transactions: how money is sent in Bitcoin - Smart Contract example: crowdfunding - Getting Bitcoin: exchange, ATM, in person, pros / cons - Demo: buying Bitcoin on an exchange - Wallets: How to store and use Bitcoin, mobile, online, hardware, cold storage - Demo: using a hardware wallet - Bitcoin mining - Demo: accepting Bitcoin on a website with BitPay Module 2: How Bitcoin Works Under the Hood - Bitcoin software universe: from wallets and libraries to full nodes - Demo: Installing Bitcore, javascript Bitcoin library, create Bitcoin address - Digital Signatures, - Bitcoin addresses - Transaction structure, UTXOs, scripts - Demo: creating and sending a transaction on testnet with Bitcore - Ledger consensus (voting) & security - Cryptographic hashes - The blockchain: structure that holds transactions - Coin creation, double spend attacks - SPV (Simplified Payment Verification) Wallets Module 3: Advanced Bitcoin - HD (Hierarchical Deterministic) Wallets - Mnemonic codes (human friendly private key storage) - Demo: derive Bitcoin HD addresses securely on public server without private keys using Bitcore - Multisignature Addresses for shared wallets & backup - Low trust escrow with multisignature addresses - Bitcoin challenges: centralization due to mining & software control, blocksize debate - Soft vs Hard Forks (software upgrade procedures) - Segregated Witnesses - Payment Channels & Lightning Networks (secure, off-chain transactions) - Check Lock Time Verify (time-based script logic) - Replace by Fee (update stuck transactions) - Payment Protocol (secure payment address delivery) - CoinJoin (mixing transactions for privacy) Module 4: Beyond Bitcoin - Altcoins, metacoins, colored coins & side chains - Comparison metrics - Byzantine General’s problem - Proof-of-Work Consensus Alternatives (Primecoin, Foldingcoin) - Proof-of-Stake (Peercoin, NXT, future Ethereum, Bitshares delegated Proof-of-Stake) - Permissioned / Private blockchains for banking, enterprise (distributed database or something more? Multichain, R3) - Seeking high performance blockchains (Tendermint, Ripple, BigChainDB) - Privacy procotols & projects - why needed? (Monero, Ring Signatures, Stealth Addresses) - Zero Knowledge Proofs & Zerocash - Stability coins: Digix, Tether, BitUSD, Nubits, MakerDAO - Ethereum - Open, Decentralized Computer for Smart Contracts - Demo: create and use Smart Contract (create your own token) on Ethereum - Prediction Markets & Augur - IoT (Internet of Things) and DAOs (Decentralized Autonomous Organizations), with Slock.it - Decentralized Storage with Storj & IPFS (Interplanatary File System) - Decentralized Identity and Reputation (Namecoin, Identify & Onename)
Views: 47912 CuriousInventor
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: 2524070 Simply Explained - Savjee
Learning Bitcoin 2- Bitcoin Block Structure (Part 1)
 
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Discussion on the basic structure of Bitcoin Block
Views: 221 Experience&Embrace
Bitcoin part 2: The Blockchain and Mining
 
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An explanation of how Bitcoin solves the double spending problem by utilizing a data structure called the block chain. This also involves a explanation of bitcoin mining and how bitcoins come into existence. While this can be viewed independently it helps having watched my previous video: - Cryptography Intro https://youtu.be/MjHDWWLAQlM - Bicoint Part 1: Wallets and Transactions https://youtu.be/WmkrOwrxNGk - Bitcoin Part 2: The Blockchain and Mining https://youtu.be/VV9KQFwIYxs - Bitcoin Part 3: Smart Contracts https://youtu.be/No8bacycrBQ - Ripple Payment System https://youtu.be/_TXduhKbe-c I will also briefly discuss Bitcoin scaling problems and why Bitcoin has forked, creating other currencies such as Bitcoin Cash.
Views: 59 Erik Engheim
Simple Blockchain in 5 Minutes
 
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A blockchain is a data structure that was first introduced by Satoshi Nakamoto in the Bitcoin protocol white paper almost a decade ago. Bitcoin's blockchain stores transaction data, but we can store any type of data in a blockchain. Ethereum, for example, enables users to store code snippets called 'smart contracts' in their blockchain. In this video, we'll build a simple blockchain in Python that uses proof-of-work consensus, just like the Bitcoin protocol does. There's a lot of misunderstanding around what the blockchain is and what it can do so I hope this demonstrates how simple it really is. Enjoy! Code for this video: https://github.com/llSourcell/Simple_Blockchain_in_5_Minutes Please Subscribe! And like. And comment. That's what keeps me going. Want more education? Connect with me here: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology instagram: https://www.instagram.com/sirajraval How does this apply to AI? Watch this: https://www.youtube.com/watch?v=5Tr13l0O1Ws More learning resources: https://anders.com/blockchain/blockchain.html https://www.youtube.com/watch?v=wVVGv2bmxow&vl=en https://www.youtube.com/watch?v=LZEHOlZY2To https://www.youtube.com/watch?v=gSQXq2_j-mw https://github.com/llSourcell/Learn_Blockchain_in_2_months Join us in the Wizards Slack channel: http://wizards.herokuapp.com/ School of AI: https://www.theschool.ai And please support me on Patreon: https://www.patreon.com/user?u=3191693 Signup for my newsletter for exciting updates in the field of AI: https://goo.gl/FZzJ5w Hiring? Need a Job? See our job board!: www.theschool.ai/jobs/ Need help on a project? See our consulting group: www.theschool.ai/consulting-group/
Views: 17456 Siraj Raval
What is inside a Bitcoin block? Programmer explains.
 
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What is inside a bitcoin block and what is the importance of blocks? https://steemit.com/@ivanli HOW BLOCKCHAIN WORKS https://www.youtube.com/watch?v=Egp8wNvu6k8&t=301s Donation Addresses ( only for you that ABSOLUTELY want to support, you don't have to ) ❤️ 💎 ETH 0x27F80bc928aB65B499514D9a429249F55849fc75 💎 LTC LWzA2kd6PB3niQcegAmJbTTpE5ovf812Mj 💎 BTC 1QLBCmPsrDS8YHe5AApPyFsHFnvPsTenj4
Views: 11624 Ivan on Tech
Bitcoin Cold Storage Part 1: Introduction / The Basics
 
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In part 1 we discuss exactly what Bitcoin cold storage is, how it works and get a basic understanding of the crypto and transaction structure behind it all. Tip address: 1BU35jLYsUboxDjo3wYy15eV53gKXXMby1 Each piece of content has its own unique Bitcoin tip address. This means when you send in a tip you're not only helping me continue my work, you're also voting with your wallet and telling me what you liked.
Views: 13773 Coding In My Sleep
Dev++ 01-01-EN | Foundational Math, ECDSA and Transactions - Jimy Song
 
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Jimmy Song explains the basics of cryptography that serves as a foundation for Bitcoin transactions. This course provides in-depth coverage of Elliptic Curve Digital Signature Algorithm (ECDSA), how ECDSA functions and how it is used to provide signing and verification of Bitcoin transactions. After covering the basics, Jimmy dives into and explains Bitcoin transaction data structure, including Bitcoin scripting opcodes - how these transactions are formed and interpreted by Bitcoin nodes. This session contains multiple sections at following timestamps: Finite Fields - https://youtu.be/e6voIwB-An4?t=4m50s Elliptic Curves - https://youtu.be/e6voIwB-An4?t=21m11s Elliptic Curves over Finite Fields - https://youtu.be/e6voIwB-An4?t=32m32s Mathematical Group - https://youtu.be/e6voIwB-An4?t=37m59s Bitcoin Addresses - https://youtu.be/e6voIwB-An4?t=50m08s ECDSA - https://youtu.be/e6voIwB-An4?t=57m42s Bitcoin Transactions - https://youtu.be/e6voIwB-An4?t=1h10m14s Bitcoin Scripts - https://youtu.be/e6voIwB-An4?t=1h17m27s Transaction Validation - https://youtu.be/e6voIwB-An4?t=1h25m Pay to Script Hash - https://youtu.be/e6voIwB-An4?t=1h29m27s To complete tasks in this course, you will need to setup the appropriate python environment as follows: Install python3, virtualenv, git $ git clone http://github.com/bitcoinedge/devplusplus $ cd devplusplus $ virtualenv -p python3 .venv $ . .venv/bin/activate $ pip install -r requirements.txt $ jupyter notebook Your browser should open up a jupyter notebook For additional information, please visit http://bitcoinedge.org
Views: 2513 Bitcoin Edge
Bitcoin News: The Structure of Crypto Industry is Solid
 
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Bitcoin News: The Structure of Crypto Industry is Solid
Views: 2493 The Cryptoniac
Bram Cohen: Data Structures for Scaling Bitcoin
 
46:32
Bram Cohen, author of the BitTorrent protocol, spoke about data structures for scaling Bitcoin. Link to slides: https://drive.google.com/file/d/0BwQpYqkQqA9cc0N4SlN2M05MS1RRRy1vZV9tZEE2VC1ZdUh3/view?usp=sharing Blockchain growth results in challenges for scaling nodes: Downloading the complete blockchain, running a lightweight node, and validating transactions in memory all become problematically expensive. Two approaches to lessening load will be presented: A transaction bitfield so transaction validation can be done with no disk access, and a very optimized general purpose Merkle trie to allow nodes to be pruned and allow the myriad other use cases of Merkle tries.
Views: 1756 SF Bitcoin Developers
Blockchain - The block structure
 
02:51
Blockchain - The block structure Watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Joshi, Tutorials Point India Private Limited
Ethereum vs Hyperledger | Which Blockchain Technology to Choose | Blockchain Training |  Edureka
 
08:39
( Blockchain Training : https://www.edureka.co/blockchain-training ) This Edureka Blockchain video on Ethereum vs Hyperledger will give you a complete fundamental understanding regarding the differences between Ethereum and Hyperledger This video helps you compare Hypereledger and Ethereum as platforms and chooose the best platform for your business. Subscribe to our channel to get video updates. Hit the subscribe button above. #Blockchain #Blockchaintutorial #Blockchainonlinetraining #Blockchainforbeginners #Hyperledgerforbeginners 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 Ethereum platform 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 blockchaintechnologies 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] or call us at IND: 9606058406 / US: 18338555775 (toll free). Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka
Views: 29884 edureka!
Considerations for Company Sale Transaction Structure
 
06:32
Most common considerations when structuring the sale of a privately held emerging technology company
Dev++ 01-02-EN | Blocks and Blockchain - John Newbery
 
01:41:44
John Newbery dives in-depth into Bitcoin blockchain primitives. This course covers all essential elements of the Bitcoin blockchain that start with discussion of the double spend problem, what is a chain of blocks, what is a proof of work and how does the mining process work, difficulty changes, bitcoin asset issuance, block header structure, transactions, merkle proofs, simple payment verification (SPV), chain forks and how is the main chain determined, structure of segregated witness transaction etc. For additional information, please visit http://bitcoinedge.org
Views: 635 Bitcoin Edge
Blockchain Tutorials- Bitcoin Block Structure
 
10:09
Bitcoin Block Structure http://tutorialsdiary.com/block-structure-in-bitcoin-blockchain/ Block structure http://tutorialsdiary.com/block-in-blockchain/ Merkle Tree Introduction http://tutorialsdiary.com/merkle-tree-in-blockchain/
Views: 32 Tutorials Diary
Making Sense of Blockchain Data Structures and Cryptocurrencies like Bitcoin,  Bhairav Mehta
 
57:29
Bhairav Mehta, Senior Data Scientist at Apple • What is Blockchain? • Blockchain Mechanics – Making Sense of blockchain data structures. • Blockchain and Cryptocurrencies History to today and future. • Blockchain Investigations: how blockchain technology works under the hood? • Bitcoin with Ruby, PyCoin: Python open source libraries for Blockchain, Segregated witness, CLTV, CSV, and advanced OPCODES, Mechanics of Lightning Network channels. • Ethereum: How to create smart contract apps using Ethereum. • CryptoCurrency Security Standard CSSS Bhairav Mehta is Senior Data Scientist with extensive professional experience and academic background. Bhairav works for Apple Inc. as Sr. Data Scientist. Bhairav Mehta is experienced engineer, business professional and seasoned Statistician / programmer with 19 years of combined progressive experience working on data science in electronics consumer products industry (7 years at Apple Inc.), yield engineering in semiconductor manufacturing (6 years at Qualcomm and MIT Startup) and quality engineering in automotive industry (OEM, Tier2 Suppliers, Ford Motor Company) (3 years). Bhairav founded a start up DataInquest Inc. in 2014 that is specialized in training/consulting in Artificial Intelligence, Machine Learning, Blockchain and Data Science. Bhairav Mehta has MBA from Johnson School of Management at Cornell University, Masters in Computer science from Georgia Tech (Expected 2018), Masters in Statistics from Cornell University, Masters in Industrial Systems Engineering from Rochester Institute of Technology and BS Production Engineering from Mumbai University. http://www.meetup.com/SF-Bay-ACM/ http://www.sfbayacm.org/
What is Mining difficulty in HIndi/Urdu| Blockchain|Block|Mining Reward|Full overview with example
 
13:55
What is mining difficulty in Hindi/Urdu|Bitcoin Mining| Blockchain|Block|Mining Reward|HashRate|Full overview with example A blockchain is a digitized, decentralized, public ledger of all cryptocurrency transactions. Constantly growing as ‘completed’ blocks (the most recent transactions) are recorded and added to it in chronological order, it allows market participants to keep track of digital currency transactions without central recordkeeping. Each node (a computer connected to the network) gets a copy of the blockchain, which is downloaded automatically. Originally developed as the accounting method for the virtual currency Bitcoin, blockchains – which use what's known as distributed ledger technology (DLT) – are appearing in a variety of commercial applications today. Currently, the technology is primarily used to verify transactions, within digital currencies though it is possible to digitize, code and insert practically any document into the blockchain. Doing so creates an indelible record that cannot be changed; furthermore, the record’s authenticity can be verified by the entire community using the blockchain instead of a single centralized authority What is the Bitcoin Mining Block Reward? https://www.bitcoinmining.com/what-is-the-bitcoin-block-reward/ https://bitcoinwisdom.com/bitcoin/difficulty https://en.bitcoin.it/wiki/Difficulty https://blockchain.info/stats ▀▄▀▄▀▄HashFlare▄▀▄▀▄▀ USE CODE 'Hf17prof5' for 5% DISCOUNT Join Hashflare: https://hashflare.io/r/B348A574 ▀▄▀▄▀▄Genisis Mining▄▀▄▀▄▀ ****Use my promo code for "Of5HqX" for 3% off your purchase and I'll return the favor :) **** www.genesis-mining.com Genesis mining is one of the largest most popular cloud mining services and they've been in business for over 3 years now. They are a reputable REAL business and I'm using genesis mining to set myself up with LONG TERM passive income. They will start start paying me from 15 march 2018 Some Use ful website:- Mining Profit calculation https://www.cryptocompare.com/mining/... https://www.coinwarz.com/calculators Market Update https://coinmarketcap.com/ Some other programs you may enjoy: ▀▄▀▄▀▄USI Tech▄▀▄▀▄▀ https://invamrit.usitech-int.com/enro... ▀▄▀▄▀▄bitconnect▄▀▄▀▄▀ https://bitconnect.co/?ref=invamrit Join my team and subcribe to help me make regular videos and lets grow together and do comment what else do you think i should make video of. Genesis Mining Genesis Mining Review Genesis Mining 2017 Genesis Mining 2018 Genesis Mining tutorial Genesis Mining calculator Genesis Mining scam Genesis Mining ethereum Genesis Mining profit Genesis Mining ether Genesis Mining promo code Genesis Mining Bitcoin Genesis Cloud Mining Genesis cloud mining scam Genesis cloud mining review Genesis cloud mining tutorial Genesis cloud mining promo code Genesis cloud mining explained genesis mining genesis cloud mining HashFlare Mining HashFlare Review HashFlare 2017 HashFlare 2018 HashFlare tutorial HashFlare calculator HashFlare scam HashFlare ethereum HashFlare profit HashFlare ether HashFlare promo code HashFlare Bitcoin HashFlare Cloud Mining HashFlare cloud mining scam HashFlare cloud mining review HashFlare cloud mining tutorial HashFlare cloud mining promo code HashFlare cloud mining explained HashFlare mining HashFlare cloud mining Bitcoin Bitcoin mining Bitcoin cloud mining Bitcoin mining explained Bitcoin for beginners What is bitcoin bitcoin 2017 earn bitcoin free bitcoin bitcoin faucets what is bitcoin invest bitcoin USI Tech USI Tech tutorial USI Tech review USI Tech presentation USI Tech english USI Tech scam USI Tech proof USI Tech withdrawal USI Tech Hindi USI Tech urdu USI Tech bangla USI Tech bitcoin USI Tech info USI Tech webinar USI Tech tutorial USI Tech reviews What is USI Tech USI Tech calculator usi tech Usi tech Passive Crypto passive Crypto Bitconnect bitconnect bcc Bitconnect scam Bitconnect proof Bitconnect withdraw Bitconnect review Bitconnect tutorial Bitconnect english Bitconnect blockchain Bitconnect hindi Hashflare Hashflare mining Hashflare cloud mining Hashflare scam Bitcoin mining Hashing24 Hashing24 Bitfury Bitfury Hashing 24 Hashing24 scam Hashing24 mining HashFlare SHA-256(bitcoin mining) price increased . is it last chance to invest? bitcoin, btc, bitcoin cash, bch, roger ver, bch pump, bitcoin cash pump, bitcoin transaction, transaction speed, bitcoin cash vs bitcoin,btc vs bch,bitcoin scaling, btc scaling, unconfirmed transactions, bitcoin fees, high fees, bch fee,litecoin, bitcoin bubble, bitcoin cash bubble, bigger blocksize, bitcoin problem, bitcoin issue, gdax, coinbase, bch coinbase, bch gdax, sunnydecree, jihan wu, bitmain, bitcoin cash future, bitcoin future, lightning network, btc sidechain What is bitcoin Mining overview in hindi?
Views: 636 Passive Crypto
Bitcoin Blockchain Explained | Understanding Bitcoin and Blockchain | Blockchain Training | Edureka
 
23:09
( Blockchain Training : https://www.edureka.co/blockchain-training ) In this Edureka live session, you will understand fundamental concepts of Bitcoin and Blockchain with a demo on Bitcoin transaction. This session helps you to learn following topics: 1. What is Bitcoin? 2. Bitcoin Transaction 3. What is Blockchain? 4. Features of Blockchain 5. Demo: Bitcoin Transaction 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] or call us at IND: 9606058406 / US: 18338555775 (toll free). Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka
Views: 5588 edureka!
Blockchain Technology Architecture
 
07:01
#blockchain
Views: 3167 Telusko
Bitcoin Internals: Verifying Merkle Roots using Merkle Proofs in JavaScript
 
10:33
In this video we expand on the previous one where we computed a given list of transactions Merkle root using Merkle trees. We will now compute a Merkle proof for a given transaction, allowing clients to validate that a transaction exists in a block without having to download it's entire contents. This technique is used widely in light-weight Bitcoin clients (using Simplified Payment Verification). We codify a JavaScript solution which will create a Merkle proof for a transaction and then do the inverse and validate that proofs claim based on the blocks Merkle root. Discussed in the video: - https://bitcoin.org/en/glossary/simplified-payment-verification - https://www.bitcoinbook.info/ The source-code for this video can be found here: https://gist.github.com/eddmann/6b8d0ddd3123c37f296b7680b8fa198a
Views: 3470 Edd Mann
Blockchain Interview Questions and Answers | Blockchain Technology | Blockchain Tutorial | Edureka
 
34:06
** Blockchain Training : https://www.edureka.co/blockchain-training ** This Edureka's Blockchain video consists of the frequently asked Blockchain Interview Questions which will help you in the preparation of Blockchain Interviews. Below are the topics covered in this session: 1. Blockchain Market Trends 2. General Blockchain Interview Questions 3. Advanced Blockchain Interview Questions Here is the link to the Blockchain blog series: https://goo.gl/DPoAHR Check out our Blockchain Tutorial Playlist: http://bit.ly/2PZb8fd Subscribe to our channel to get video updates. Hit the subscribe button above. Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka #Blockchain #Blockchaintutorial #Blockchainonlinetraining #Blockchainforbeginners #BlockchainInterviewQuestions How it Works? 1. This is a 5 Week Instructor led Online Course, 30 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 Ethereum platform 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: 1. Comprehend the cryptography and cryptocurrency concepts 2. Encompass the concept of blockchain 3. Understand the importance of blockchain technology 4. Have a deep insight into bitcoin and its network 5. Perceive, how bitcoin transactions are validated by miners 6. Create and use bitcoin account effectively 7. Understand Ethereum blockchain 8. Learn Solidity: Prominent language to develop smart contracts 9. Deploy your private blockchain on web where you can visually see your chains 10. Send transactions between nodes 11. Develop more than one nodes on same blockchain 12. Making your own cryptocurrency 13. Discuss the compelling use-cases of the blockchain 14. Interpret the prospects of blockchain. 15. 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] or call us at IND: 9606058406 / US: 18338555775 (toll free).
Views: 5822 edureka!
TechTalk 11/17/15 - Blockchain: The Part of the Iceberg Beneath Bitcoin
 
56:31
In this TechTalk, Dr. John Callahan discussed "Blockchain: The Part of the Iceberg Beneath Bitcoin." He examined the general structure of blockchain technologies that support bitcoin, their foundations, exploits, and new applications including alt coins, smart contracts, and distributed applications (DAPs). He also presented the broad technical possibilities of blockchain, and surveyed the social and legal impacts of a pseudo-anonymous transaction ledger for currencies, contracts, file systems, databases, and other proposed applications. Callahan is currently the chief scientist of the Applied Information Sciences Branch of the Asymmetric Operations Sector at the Johns Hopkins Applied Physics Laboratory.
Ethereum Smart Contracts Tutorial | Deploying Smart Contracts | Blockchain Training | Edureka
 
29:26
( Blockchain Training : https://www.edureka.co/blockchain-tra... ) This Edureka Ethereum Smart Contracts Tutorial (Ethereum blog: https://goo.gl/9vFwJj ) video will give you a complete understanding on Ethereum and Smart Contracts. This video helps you to learn following topics: 1. Why is Ethereum needed? 2. What is Ethereum? 3. Types of Ethereum Accounts 4. Smart Contracts 5. Solidity 6. Ethereum Virtual Machine and Gas 7. Demo: Deploying Smart Contracts 8. Blockchain Use Cases: DApps and DAOs Subscribe to our channel to get video updates. Hit the subscribe button above. Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka #Ethereumtutorial #Ethereum #Ethereumonlinetraining #Ethereumforbeginners #Smartcontracts 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 Ethereum platform 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: 1. Comprehend the cryptography and cryptocurrency concepts 2. Encompass the concept of blockchain 3. Understand the importance of blockchain technology 4. Have a deep insight into bitcoin and its network 5. Perceive, how bitcoin transactions are validated by miners 6. Create and use bitcoin account effectively 7. Understand Ethereum blockchain 8. Learn Solidity: Prominent language to develop smart contracts 9. Deploy your private blockchain on web where you can visually see your chains 10. Send transactions between nodes 11. Develop more than one nodes on same blockchain 12. Making your own cryptocurrency 13. Discuss the compelling use-cases of the blockchain 14. Interpret the prospects of blockchain. 15. 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] or call us at IND: 9606058406 / US: 18338555775 (toll free).
Views: 13250 edureka!
MimbleWimble with Andrew Poelstra
 
49:22
Andrew Poelstra from Blockstream discussed MimbleWimble. "MimbleWimble is a blockchain design with no script support and blinded amounts. Like proverbial black holes, transaction outputs have no hair. This simplicity allows aggressive compaction and aggregation, resulting in a blockchain with much better scalability than any other design to date."
Views: 12928 SF Bitcoin Developers
Are Counterparty transactions too expensive?
 
04:55
Counterparty transactions are no more expensive than Bitcoin transactions, though it's often that people use Counterparty transactions in ways that aren't entirely cost effective. In this video, I discuss the basic structure of Counterparty's transactions, why Counterparty's transaction costs are a feature, and how to more effectively use Counterparty for value transfers.
Views: 98 Bitcoin Uncensored
Blockchain 101 Ep 42 - What's the relationship between Bitcoin and blockchain
 
01:06
Blockchain is Bitcoin’s underlying technology, and Bitcoin was its very first application. As mentioned before, each Bitcoin transaction is recorded on a decentralized ledger, which is the blockchain. Using a physical ledger book as an analogy for blockchain, each block is like a page of the book. A new page is added to it every 10 minutes, and each page records the transactions that happened within that 10 minutes. The blocks are connected chronologically and added through cryptography, forming a chain-like structure, hence the name: Blockchain. After the whitepaper “Bitcoin: A peer-to-peer Electronic Cash System” was released, major financial institutions at home and abroad have been studying Bitcoin’s underlying blockchain technology, developing practical use cases for various industries. Follow us on: Huobi Pro: https://www.huobi.pro Youtube: https://www.youtube.com/HuobiPro Twitter: https://twitter.com/huobi_pro Facebook: https://www.facebook.com/huobipro Instagram: https://www.instagram.com/huobipro Medium: https://medium.com/@huobipro Telegram: https://t.me/huobiproofficial
Views: 377 Huobi Global
De-anonymizing Bitcoin one transaction at a time (Mathieu Lavoie & David Décary-Hétu)
 
43:33
De-anonymizing Bitcoin one transaction at a time The aims of this presentation are twofold. The first is to present an open-source tool we developed that analyzes all of the bitcoin transactions and regroups bitcoin addresses based on their incoming and outgoing transactions. This allows for a more accurate mapping of individuals’ online activities no matter how many bitcoin addresses they are using. The second aim of this presentation is to provide real world use cases for the tool to better understand online illicit activities. To do so, we will present two case studies of extortion scams and online drug dealing. Each case will follow the growth of the illicit activities through time and the strategies used to manage the incoming bitcoins. Biography David Décary-Hétu Prof. Décary-Hétu has a Ph.D. in criminology from the University of Montreal. He has worked as a Senior Scientist at the School of Criminal Sciences of the Université de Lausanne before his current position as an Assistant Professor at the School of Criminology of the University of Montreal. His thesis focused on the impact of the Internet on crime as well as how offenders have adapted to the virtual environment. Prof. Décary-Hétu has since continued his research on online illicit markets and is now particularly interested in cryptomarkets, 2nd generation online illicit markets. He has developed the DATACRYPTO tool that he uses to collect large amounts of information on cryptomarket participants. His research goals are to better understand the structure of markets and the social network of actors who participate in them as well as to understand the performance in the context of online illicit markets. To achieve these objectives, Prof. Décary-Hétu uses a quantitative approach that takes advantage of big data, data mining and social network analysis. The results of his research, funded by both the provincial and federal governments, have been published in journals such as the Journal of Research in Crime and Delinquency, have been presented at numerous conferences and have been disseminated to a wide audience in a number of interviews with the media. Mathieu Lavoie Graduated from ETS, Mathieu works as a pentester for a large financial institution.He previously worked as a malware researcher at ESET and as a computer security freelancer. During his free time, he is an avid participant to many CTFs with others gin addicted from DCIETS where he developed a deep love-hate relationship with Crypto Challenges or DEFCON’s so-called ““Web”” Challenges. As such he was multiple times a finalist at the CSAW competition, and can even be seen somewhere on their website (no points for this flag) He speak at some security conferences including the first NorthSec and HOPE conference.
Views: 240 Hackfest HF
Bitcoin Protocol Tutorial #8: Incentive
 
08:53
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 Bitcoin protocol paper tutorial, the incentive section is covered. The question is, why take part in the network and help with transactions? Also, why choose to be a part of the network rather than using your computing power to attack the network? http://seaofbtc.com http://sentdex.com http://hkinsley.com https://twitter.com/sentdex Bitcoin donations: 1GV7srgR4NJx4vrk7avCmmVQQrqmv87ty6
Views: 3541 sentdex
Bitcoin: Creation, Circulation, Usage, Problems & Advantages - Currency of Internet
 
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Expect atleast one question in your exam from this lecture! Dr. Manishika Jain explains tCreation, Circulation, Usage, Problems & Advantages of Bitcoins - Cryptocurrency "If you can't explain it simply, you don't understand it well enough." - Albert Einstein Why Use Bitcoin? Peer to peer Account cant be closed On digital wallet Simple as email Secured by Miners (rewarded for maintaining ledger) Changing finance Minimize transaction fee Cannot be frozen & blocked Cryptocurrency - Anonymous Crypto = Hidden Key Signature Bitcoin/Altcoins – 1st decentralized cryptocurrency in 2009 Why Use Bitcoin? @4:014 Cryptocurrency – Anonymous @6:49 Double Spending Problem @8:15 Open Ledger @10:27 Distributed Open Ledger @11:47 Miners @12:53 Block Chain @17:37 Block Chain – Public Distributed Ledger @21:30 Bitcoin Circulation @22:48 History of Cryptocurrency @23:04 Algorithms @24:11 SHA-2 @24:14 Scrypt @24:33 Bitcoin (BTC, XBT) @24:48 Satoshi @25:58 Why Bitcoin Fluctuates @27:33 Who Accepts? @29:37 Global Scenario @30:04 Bitcoin in India @31:18 Bitcoin Thefts @32:52 Mt. Gox @33:09 Bitfinex @ 33:49 #Bitcoin #Ledger #Centralized #Anonymous #Decentralized #Transaction #Frozen #Rewarded #Einstein #Manishika #Examrace Double Spending Problem Open Ledger Chain of transactions Open & public Decide valid/not valid Centralized place Block Chain New group of accepted transactions 6 times every hour – blocks made Nonce: Arbitrary number may only be used once Block Chain – Public Distributed Ledger Its not bitcoin but backend of bitcoin Ledger is open and public Ledger exists in many nodes - decentralized Removes dependency on 3rd party No trusted entity Faster/Immediately Cheaper For new block – 12.5 BTC Every hour 12.5×6=75 BTC After 2.1 lakh block (4 years), amount of BTC is halved – ultimately zero BTC – only transaction fee Bitcoin Circulation 21 million bitcoins in 100 years About over 13 million bitcoins in circulation by 2014 8 million bitcoins will be mined in next 95 years History of Cryptocurrency 1998: We-Dai – b-money – distributed electronic cash system BitGold by Nick Szabo 2009: Bitcoin - used SHA-256, a cryptographic hash function, as its proof-of-work scheme 2011: Namecoin 2011: Litecoin - used scrypt as its hash function Peercoin: proof-of-work/proof-of-stake hybrid 2014: Treasury Algorithms SHA-2 (Secure Hash Algorithm 2) by NSA - cryptographic hash functions Scrypt: Password-based key derivation function – make it difficult to do hardware attacks Bitcoin (BTC, XBT or ) Key and Signature Signatures are unique By Satoshi Nakamoto 31 May 2017: 1 bitcoin = $2257.96 or Rs. 143126.45 Mathematically limited to 21 million bitcoins Satoshi Satoshi / Austrian – one hundred million of BTC (smallest unit) Japanese character シ ("shi") - proposed Katakana symbol サ ("sa") - proposed Circled shi (㋛) Hiragana shi (し) Why Bitcoin Fluctuates? Rate in 2010 ($0.08) USA (buy – uptick) Zambia (sell – downtick) 30 minutes later Decrease in Bitcoin rate by: Merchants accepting Bitcoin Miners “cashing out” to pay bills with fiat Redemption of transmission bitcoin Conversion of bitcoin salaries to fiat (increase in unused bitcoin) Who Accepts? More than 1 lakh retailers Wallet applications Apple Dell Newegg e-Bay Dish Network Global Scenario Japan – Bitcoin made legal (law passed) Australia – removed double tax on bitcoin users Bangladesh – Illegal – 12 years in jail Kyrgyzstan – Illegal (no prohibition from buying and selling) Ecuador – banned (creating its own virtual currency) Bolivia – Banned Vietnam – prohibits credit institutions from dealing in cryptocurrency Bitcoin in India BTCXIndia: 1st bitcoin exchange in India with KYC and AML guidelines Unocoin Zebpay – 5 lakh app downloads & 2,500 users per day are added Fiat is needed to purchase Bitcoin to enter market in India – entry by donations, services or mining Still researching on bitcoin to make it legal Market acceptance, customer trust, investment security, money laundering, hawala Bitcoin Thefts Mt. Gox –mtgox.com, short for "Magic: The Gathering Online eXchange’ in 2006. World’s leading bitcoin exchange in 2013-14 - 850,000 bitcoins were stolen which amounted to $450 million & finally bankruptcy declared Bitfinex - $72 million stolen in Hong Kong based exchange - customers would forfeit 36% of their holdings and be given "BFX tokens" instead that could be redeemed by the exchange or converted to shares in its parent company iFinex. Join our fully evaluated UPSC Geography optional test series at - https://www.doorsteptutor.com/Exams/IAS/Mains/Optional/Geography/Test-Series/, Post evaluation get personalized feedback & improvement call for each test. Ready-made fully solved questions for GS at https://www.doorsteptutor.com/Exams/IAS/Prelims/ Don't miss preparing for IAS CSAT Paper II - http://www.examrace.com/IAS/IAS-FlexiPrep-Program/Postal-Courses/Examrace-IAS-CSAT-Prelims-Paper-II-Series.htm
Views: 9028 Examrace
What is Blockchain? | Introduction to Blockchain Technology | Blockchain Tutorial | Simplilearn
 
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This Blockchain tutorial will help you understand what is cryptocurrency, types of cryptocurrency, what is Blockchain, how Bitcoin transaction works, features of Blockchain and Walmart problem. The blockchain is the digital ledger of economic transactions worldwide. It is the world’s leading platform for digital assets. Dive into this budding world of digital currency with our comprehensive online Blockchain training course and learn everything you need to know about Blockchain technology: the pioneer of the digital asset. Now, lets deep dive into this tutorial and understand the basics of Blockchain. Below topics are explained in this Blockchain tutorial: 1. What is a Cryptocurrency? 2. The types of Cryptocurrency 3. What is Blockchain? 4. How a Bitcoin transaction works 5. The features of Blockchain 6. The Walmart problem. To learn more about Blockchain, subscribe to our YouTube channel: https://www.youtube.com/user/Simplilearn?sub_confirmation=1 You can also go through the slides here: https://goo.gl/XQJ9K7 Watch more videos on Blockchain: https://www.youtube.com/playlist?list=PLEiEAq2VkUUKmhU6SO2P73pTdMZnHOsDB #Whatisblockchain #Blockchain #Blockchaintutorial #Bitcoin #Blockchainonlinetraining #Blockchainforbeginners #BlockchainTechnology #Simplilearn Simplilearn’s Blockchain Certification Training has been designed for developers who want to decipher the global craze surrounding Blockchain, Bitcoin and cryptocurrencies. You’ll learn the core structure and technical mechanisms of Bitcoin, Ethereum, Hyperledger and Multichain Blockchain platforms, use the latest tools to build Blockchain applications, set up your own private Blockchain, deploy smart contracts on Ethereum and gain practical experience with real-world projects. Why learn Blockchain? Blockchain technology is the brainchild of Satoshi Nakamoto, which enables digital information to be distributed. A network of computing nodes makes up the Blockchain. Durability, robustness, success rate, transparency, incorruptibility are some of the enticing characteristics of Blockchain. By design, Blockchain is a decentralized technology which is used by a global network of the computer to manage Bitcoin transactions easily. Many new business applications will result in the usage of Blockchain such as Crowdfunding, smart contracts, supply chain auditing, Internet of Things(IoT), etc. This Blockchain Certification course offers a hands-on training covering relevant topics in cryptocurrency and the wider Blockchain space. From a technological standpoint, you will develop a strong grasp of core Blockchain platforms, understand what Bitcoin is and how it works, learn key vocabulary and concepts commonly used when discussing Blockchain and understand why engineers are motivated to create an app with Ethereum. Hands-on exercises and projects will give you practical experience in real-world Blockchain development scenarios. After completing this course, you will be able to: 1. Apply Bitcoin and Blockchain concepts in business situations 2. Build compelling Blockchain applications using the Ethereum Blockchain 3. Design, test and deploy secure Smart Contracts 4. Use the latest version of Ethereum development tools (Web3 v1.0) 5. Develop Hyperledger Blockchain applications using Composer Framework 6. Model the Blockchain applications using Composer modeling language 7. Develop front-end (client) applications using Composer API 8. Leverage Composer REST Server to design a web-based Blockchain solution 9. Design Hyperledger Fabric Composer Business Network 10. 10. Understand the true purpose and capabilities of Ethereum and Solidity 11. See practical examples of Blockchain and mining 12. Describe the various components of Hyperledger Fabric Technology (Peers, Orderer, MSP, CA) The Blockchain Certification Training Course is recommended for: 1. Developers 2. Technologists interested in learning Ethereum, Hyperledger and Blockchain 3. Technology architects wanting to expand their skills to Blockchain technology 4. Professionals curious to learn how Blockchain technology can change the way we do business 5. Entrepreneurs with technology background interested in realizing their business ideas on the Blockchain 6. Anyone interested in ERC20 tokens and ICOs Learn more at: https://www.simplilearn.com/blockchain-certification-training?utm_campaign=What-is-Blockchain-WeuJqKEfSxM&utm_medium=Tutorials&utm_source=youtube For more updates on courses and tips follow us on: - Facebook: https://www.facebook.com/Simplilearn - Twitter: https://twitter.com/simplilearn - LinkedIn: https://www.linkedin.com/company/simplilearn - Website: https://www.simplilearn.com Get the Android app: http://bit.ly/1WlVo4u Get the iOS app: http://apple.co/1HIO5J0
Views: 22181 Simplilearn
"Blockchain" or Bitcoin: Understanding the differences
 
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In this talk, Andreas explores the rise of the term "blockchain" as a counterweight to bitcoin. The term blockchain does not provide a definition, as it has been diluted to be meaningless. Saying "blockchain" simply invites questions, such as "what is the consensus algorithm". Meanwhile, bitcoin continues to offer an alternative to the traditional financial system. Andreas looks at the value of private ledgers, which he sees as having a small impact on finance, versus open, global and accessible payment and currency systems such as bitcoin which he sees as fostering a global revolution in finance and access to financial tools. Want to hear more about Bitcoin and open blockchains? Follow on Twitter: @aantonop Visit my website: https://antonopoulos.com/ Read more: “Mastering Bitcoin” - https://www.bitcoinbook.info/ “The Internet of Money” - https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/1537000454 via OpenBazaar: ob://efece349f9830a6d6167c3bbc6ed3ce855277a8f (https://duosear.ch/efece349f9830a6d6167c3bbc6ed3ce855277a8f/listing/974a62586f0e48c53b7c19592f9ceb64a4b08e84)
Views: 61511 aantonop
Programmer explains Merkle Tree | Blockchain technology
 
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What are merkle trees and how are they used in blockchains such as Bitcoin or Ethereum? https://steemit.com/@ivanli Thanks for watching guys, if you'd like to support me and donate to the channel, here are my addresses: 💎 ETH 0x27F80bc928aB65B499514D9a429249F55849fc75 💎 LTC LWzA2kd6PB3niQcegAmJbTTpE5ovf812Mj 💎 BTC 1QLBCmPsrDS8YHe5AApPyFsHFnvPsTenj4 💎 DASH XfX56mNDawvmxxWv3nF9Ev93W4MsmCbeXp
Views: 9967 Ivan on Tech
Linda Xie on Bitcoin Traceability
 
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Linda Xie is the co-founder of Scalar Capital and previously a product manager at Coinbase working on compliance investigations. Linda describes how 3rd parties are able to trace Bitcoin transactions and how privacy and compliance can co-exist.
Views: 700 Zcash