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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: 206838 Khan Academy
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: 3938 FINMAESTRO
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: 386093 Rodrigo Henrik
Blockchain - How To Verify A Bitcoin Transaction And Get Your Hash ID
 
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For more tips like these visit http://bodymindsuccess.com/bitcoin or subscribe to our channel
Views: 47023 Crypto Currency Wealth
Why are Bitcoin transactions so weird? Programmer explains.
 
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When you lookup a Bitcoin transaction in a block explorer it might seem strange and hard to understand. Transactions and unspent transaction output (UTXO) will be explained in this video. You will also get a deeper understanding of how Bitcoin operates under the hood. Let’s meet at BlockShowAsia in Singapore 29-30 November! (https://blockshowasia.com). I’ll be holding a keynote about Bitcoin Scaling and I will also moderate large parts of the event. Use my discount code IVANONTECH35 FB event for the Ivan on Tech meetup: https://www.facebook.com/events/148042682485027/ Thanks for watching guys 💝 🎤 If you would like me to speak at your conference, book me here: https://ivanontech.com 🍻 Join the crypto discussion forum - https://thecrypto.pub 📚 Get my free e-book on Bitcoin and Blockchain - http://eepurl.com/c0hyc9 you will receive the book in your inbox once you sign up 👫👭👬Social: LinkedIn: http://linkedin.com/in/ivanliljeqvist/ Instagram: http://instagram.com/ivanontech/ Steemit: https://steemit.com/@ivanli Facebook: http://facebook.com/ivanontech/ Exclusive email list: http://eepurl.com/c0hyc9 🤑 Buy cryptocurrencies: https://www.coinbase.com/join/529bab0ab08ded7080000019 💰 Secure your Crypto with Hardware Wallets: Ledger: https://www.ledgerwallet.com/r/4607 Trezor: https://trezor.io/?a=rvj3rqtje3ph Ivan on Tech by Ivan Liljeqvist
Views: 9405 Ivan on Tech
How to Trace a Bitcoin Transaction using a Bitcoin receiving address
 
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The Crypto Dad shows you how to trace a Bitcoin transaction. Important software used is: Electrum bitcoin wallet: https://electrum.org/#home The Blockchain explorer: https://blockchain.info/ X-Mirage Mirroring Software: http://www.x-mirage.com/ Get the Blockchain Bitcoin Wallet App! https://itunes.apple.com/us/app/blockchain-bitcoin-wallet/id493253309 Donate Bitcoins: 1JBxwXG8P6PYKKsrHKzQduM8s8RoV3dnjr
Views: 8730 Rex Kneisley
Bitcoin - The security of transaction block chains
 
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A detailed explanation of what makes bitcoin transaction block chains secure. More free lessons at: http://www.khanacademy.org/video?v=8zgvzmKZ5vo 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: 80221 Khan Academy
The Bitcoin Blockchain Explained
 
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Forget the currency; it’s the protocol behind it that matters. Blockchains will mutate and take over everything we do on the Web. Trusting strangers with your digital information may sound silly, but it’s actually a revolution in distributed computing. And one day, systems like Bitcoin could be the future of all secure digital transactions. Read more: http://bit.ly/29jiJ3B
Views: 107143 IEEE Spectrum
Blockchain/Bitcoin for beginners 8: Bitcoin addresses, public key hash, P2PKH transactions
 
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Before we delve into the inner workings of a bitcoin transaction I wanted to explain how the actual bitcoin address is derived from the public key which in turn is derived from the private key. I take through step by step all the steps required to derived the checksums etc and show with a real example of a real bitcoin transaction. Also discuss why checksums are included in Bitcoin addresses in order to eliminate the possibility of characters being corrupted, or modified in transit. This is the cool tool for converted from base 58 encoded value to hex value. http://lenschulwitz.com/base58 Good link talking about base 58 encoding. https://en.bitcoin.it/wiki/Base58Check_encoding
Views: 10360 Matt Thomas
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: 878738 Anders Brownworth
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: 31618 djp3
Block Chain Transaction Hash ID
 
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This short video explains how to get transaction Hash ID on Bitcoin, so as to have a third party/admin verify your successful transaction. Skype: omovaze Facebook: https://web.facebook.com/omovaze Twitter: https://www.twitter.com/omovaze?
Views: 3602 Alegbe Ecstasy
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, zordycorak@gmail.com, DFJWgXdBCoQqo4noF4fyVhVp8R6V62XdJx Russian caption translation by Alexandra Miklyukova Italian voice over: http://youtu.be/1aEf3qr7UdE Italian captions translated by Simone Falcini, 1H5KdCnBooxfqpXtyQBBAKKRU7MkCZCVCe
Views: 2600607 CuriousInventor
How to Read an Ethereum Blockchain Explorer Receipt
 
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In this video, BlockchainWTF's Jeremy Cogan explains how to read a receipt on a blockchain explorer. He'll cover the different capabilities of a blockchain explorer, how to read a receipt, and any associates fees that come with these transactions. KIN ICO or NO episode: https://blockchain.wtf/2017/09/series/ico-or-no/episode-11-kin/ Reach out and sign up for our mailing list at: https://blockchain.wtf/contact-us/ Don't worry, we don't bite! Let us know what you think below in the comments section below! * Twitter: https://twitter.com/blockchainwtf * Facebook: https://facebook.com/blockchainwtf * Website: https://blockchain.wtf Reach out and sign up for our mailing list at: https://blockchain.wtf/contact-us/
Views: 1670 Blockchain WTF
Bitcoin Basics: Blockchain Transactions Ep.4 (04/06/2018)
 
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Today on SomethingAboutCrypto I will be discussing the differences between a distributed ledger and blockchain in the second installment of Bitcoin Basics. I'll be showing you how to interact with the Bitcoin blockchain with a block explorer and also introducing a couple other fun visual resources to help understand the network's size. *Apologies for the slight lag at parts with the animated visuals* Bitcoin Block Explorer: https://btc.com/ Bitcoin Node Map: https://bitnodes.earn.com/ Real-Time Bitcoin Transactions: https://blocks.wizb.it/ Give the Brave Browser a try, support both the decentralized landscape and the SomethingAboutCrypto channel by signing up through this link: https://brave.com/som667 Twitter: https://twitter.com/JeremyDarvill Website: https://somethingaboutcrypto.ca/ *None of the information provided in this video is meant to be financial advice. It is all based on my personal opinions and experiences. Consult the proper legal, tax, or accounting professionals for any questions you have that fall into one of those realms*
What is an offchain transaction?
 
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What do people mean when they talk about offchain transactions? What does one look like, and where do they fit in the Bitcoin network? In this video, shot at a laundromat in West Pompano Beach, I discuss offchain transactions, Counterparty,and Bitcoin!
Views: 848 Bitcoin Uncensored
Miner rewards & transactions - Blockchain in Javascript (part 3)
 
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Implementing miner rewards and basic transactions in our Javascript based blockchain. Mining rewards steadily introduce new coins into the system. OOPS, I made a small mistake! In the minePendingTransactions() method, you have to pass the hash of the previous block when you're creating a new Block() instance. This was fixed on GitHub: ► Source code Available on GitHub: https://github.com/SavjeeTutorials/SavjeeCoin ►►► Buying Bitcoin or Ethereum Get $10 for free when buying through my affiliate link (thanks!): https://goo.gl/G9NQsu 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Overview of Blockchain.info Bitcoin Transaction Tracking
 
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Just a small overview of how to track your BTC transactions. One of the better sites to use http://blockchain.info
Views: 6273 NerdvanA Channel
Blockchain tutorial 27: Bitcoin raw transaction and transaction id
 
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This is part 27 of the Blockchain tutorial. This tutorial explains: - What Bitcoin raw transaction is. - Shows an example of a raw transaction using the very first transaction on the Genesis block. - What the difference is between big endian and little endian. - What a satoshi is. - What a Bitcoin transaction id or hash is and what its purpose is. - How to calculate the transaction id. In this video series different topics will be explained which will help you to understand blockchain. Bitcoin released as open source software in 2009 is a cryptocurrency invented by Satoshi Nakamoto (unidentified person or group of persons). After the introduction of Bitcoin many Bitcoin alternatives were created. These alternate cryptocurrencies are called Altcoins (Litecoin, Dodgecoin etc). Bitcoin's underlying technology is called Blockchain. The Blockchain is a distributed decentralized incorruptible database (ledger) that records blocks of digital information. Each block contains a timestamp and a link to a previous block. Soon people realises that there many other use cases where the Blockchain technology can be applied and not just as a cryptocurrency application. New Blockchain platforms were created based on the Blockchain technology, one of which is called Ethereum. Ethereum focuses on running programming code, called smart contracts, on any decentralized application. Using the new Blockchain platforms, Blockchain technology can be used in supply chain management, healthcare, real estate, identity management, voting, internet of things, etcetera, just to name a few. Today there is a growing interest in Blockchain not only in the financial sector but also in other sectors. Explaining how Blockchain works is not easy and for many the Blockchain technology remains an elusive concept. This video series tries to explain Blockchain to a large audience but from the bottom up. Keywords often used in Blockchain conversation will be explained. Each Blockchain video is short and to the point. It is recommended to watch each video sequentially as I may refer to certain Blockchain topics explained earlier. Check out all my other Blockchain tutorial videos https://goo.gl/aMTFHU Subscribe to my YouTube channel https://goo.gl/61NFzK The presentation used in this video tutorial can be found at: http://www.mobilefish.com/developer/blockchain/blockchain_quickguide_tutorial.html The 3 links mentioned in the video are: - The bitcoin_genesis_raw_tx.txt file http://www.mobilefish.com/download/cryptocurrency/bitcoin_genesis_raw_tx.txt - The Bitcoin protocol: https://en.bitcoin.it/wiki/Protocol_documentation#tx - The block explorer used in the video: https://blockchain.info/ The python script to calculate the transaction id: http://www.mobilefish.com/download/cryptocurrency/calculate_txid.py.txt The brainwallet tool to convert the raw transaction into a more readable text: http://www.mobilefish.com/services/cryptocurrency/brainwallet.html #mobilefish #blockchain #bitcoin #cryptocurrency #ethereum
Views: 4804 Mobilefish.com
Bitcoin Q&A: Empty blocks, orphan blocks, and valid chains
 
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What are empty blocks and are they necessarily bad? What are orphan blocks? Where do bitcoin balances come from? What is meaning of "the longest cumulative difficulty, valid chain"? These questions are from the MOOC 8.2, 9.2, 9.3, 9.4, and 9.5 sessions, which took place on September 15th 2017, February 23rd, March 2nd, March 9th, and March 16th 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Consensus Algorithms, Blockchain Technology, and Bitcoin - https://youtu.be/fw3WkySh_Ho Advanced Bitcoin Scripting Part 1: Transactions and Multisig - https://youtu.be/8FeAXjkmDcQ Advanced Bitcoin Scripting Part 2: SegWit, Consensus, and Trustware - https://youtu.be/pQbeBduVQ4I What is Consensus: Rules without Rulers - https://youtu.be/2tqo7PX5Pyc Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0 The mining process - https://youtu.be/L4Xtau0YMJw Genesis block and coinbase transactions - https://youtu.be/strhfzJ56QE The rules of Bitcoin (part 1) - https://youtu.be/VnQu4uylfOs The rules of Bitcoin (part 2) - https://youtu.be/vtIp0GP4w1E Decentralized power, leaderless governance - https://youtu.be/E5VbDlQTPzU Scaling, trust, and trade-offs - https://youtu.be/vCxmHwqyJWU Why running a node is important - https://youtu.be/oX0Yrv-6jVs Honest nodes and consensus - https://youtu.be/KAhY2ymI-tg Running nodes and payment channels - https://youtu.be/ndcfBfE_yoY What happens during a fork? - https://youtu.be/XBk8hBJ1xVo SegWit adoption - https://youtu.be/KCsTVTRk6I4 How do mnemonic seeds work? - https://youtu.be/wWCIQFNf_8g Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 5650 aantonop
A Bitcoin Blockchain Transaction Visualization + Sonification "chains" at ZKM (2016)
 
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Daito Manabe + Yusuke Tomato + 2bit Ishii with support of sivira https://sivira.co
Views: 5622 daito manabe
Blockchain tutorial 26: Bitcoin transaction
 
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This is part 26 of the Blockchain tutorial explaining how to make a bitcoin transaction. A real demonstration is given how to make a bitcoin transaction on the Bitcoin Testnet. This tutorial shows the following: - How to create multiple public and private bitcoin Testnet key pairs. - How to claim some bitcoins from a faucet and transfer it to a sender address. - How to make a bitcoin transaction by transferring all bitcoins from a sender address to receiver address. This tutorial also explains: - What UTXO (Unspent Transaction Output) is. - What a confirmation is. In this video series different topics will be explained which will help you to understand blockchain. Bitcoin released as open source software in 2009 is a cryptocurrency invented by Satoshi Nakamoto (unidentified person or group of persons). After the introduction of Bitcoin many Bitcoin alternatives were created. These alternate cryptocurrencies are called Altcoins (Litecoin, Dodgecoin etc). Bitcoin's underlying technology is called Blockchain. The Blockchain is a distributed decentralized incorruptible database (ledger) that records blocks of digital information. Each block contains a timestamp and a link to a previous block. Soon people realises that there many other use cases where the Blockchain technology can be applied and not just as a cryptocurrency application. New Blockchain platforms were created based on the Blockchain technology, one of which is called Ethereum. Ethereum focuses on running programming code, called smart contracts, on any decentralized application. Using the new Blockchain platforms, Blockchain technology can be used in supply chain management, healthcare, real estate, identity management, voting, internet of things, etcetera, just to name a few. Today there is a growing interest in Blockchain not only in the financial sector but also in other sectors. Explaining how Blockchain works is not easy and for many the Blockchain technology remains an elusive concept. This video series tries to explain Blockchain to a large audience but from the bottom up. Keywords often used in Blockchain conversation will be explained. Each Blockchain video is short and to the point. It is recommended to watch each video sequentially as I may refer to certain Blockchain topics explained earlier. Check out all my other Blockchain tutorial videos https://goo.gl/aMTFHU Subscribe to my YouTube channel https://goo.gl/61NFzK The presentation used in this video tutorial can be found at: http://www.mobilefish.com/developer/blockchain/blockchain_quickguide_tutorial.html The 3 bitcoin node.js scripts can be found at: http://www.mobilefish.com/developer/nodejs/nodejs_quickguide_bitcoinjs.html The Bitcoin faucet used in this video is: https://testnet.coinfaucet.eu/en/ The Bitcoin Testnet explorer used in this video is: https://live.blockcypher.com/btc-testnet/ #mobilefish #blockchain #bitcoin #cryptocurrency #ethereum
Views: 4515 Mobilefish.com
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: 258441 Mrunal Patel
How to Confirm the Unconfirmed Bitcoin Transactions Quickly
 
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Nowadays we have seen that Bitcoin is a good source of investment creating its high demand in the market and due to network congestion transactions are getting very delayed, In this video i will tell you how to receive the bitcoin in your wallet in 10 - 15 minutes
Views: 22654 Dinesh Varyani
Blockchain - How To Verify A Bitcoin Transaction And Get Your Hash Id [Bitcoin Block Explorer]
 
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🔥Certified Forex & Binary Options Broker🔥 with Unlimited $1000 Practice Account! + 💲Now Trade & Buying Most Crypto Currency (ETH,BTC,XRP,NEO...) ➡ https://goo.gl/YtLFVh THIS VIDEO IS NOT INVESTMENT ADVICE. General Risk Warning: The financial services provided by this website carry a high level of risk and can result in the loss of all your funds. You should never invest money that you cannot afford to lose.................................................................................................................Bitcoin chain Blockchain automated bitcoin trading software blockchain unverified transaction Bitcoin Blockchain Explorer Blockchain Explorer Block Explorer vs Website blockchain explorer tutorial forex trading for beginners Future of the Internet blockchain institute for the future bitcoin trading software blockchain explorer btc instant bitcoin payment blockchain confirmation what is cryptocurrency blockchain futures lab bitcoin currency trading risk unverified blockchain bitcoin confirmations three blue one brown how to trade bitcoin cryptocurrency blockchain explorer Bitcoin Blockchain bitcoin faucet script blockchain explained How to Read Receipts instant bitcoin vps block forex online forum bitcoin blockchain bitcoin transaction decentralized apps cryptocurrencies blockchain viewer Bitcoin (Currency) digital signature bitcoin explained Charles Hoskinson digital currency CardanoFoundation Cryptocurrency Digital Currency trading software block chain getting started Vitalik buterin bitcoin explorer биткоин кошелек биткоин майнинг биткоин новости биткоин аккаунт bitcoin trading
Blockchain for Dummies - Part 2 - Bitcoin transactions
 
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Hi All, In this short video, we will give you a conceptual understanding of how bitcoin transactions work and why Bitcoin can be considered a valid payment system. In future videos, we will look into smart-contract and other blockchain applications before going deeper into the more technical details. (e.g. how are blocks created, where do bitcoins come from, etc.) Stay tuned for more. Learn everything in one book: https://goo.gl/mXwxNE Social media links: Facebook: https://goo.gl/RKz9Vh Twitter: https://goo.gl/6bkofK LinkedIn: https://goo.gl/qR5jTG Instagram: https://goo.gl/mZLUoy
Views: 48336 jeanlucverhelst
We Grow Bitcoins Tutorial: How to Speed Up Your Bitcoin Transactions on The Block Chain 2017
 
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http://bit.ly/TripleYourBitcoins - Profit from Bitcoin | 62.76 Bitcoin per month Setup Both of These Bitcoin Wallets: Setup Your Coin Base Wallet: http://bit.ly/xecoinbase Setup Your BlockChain Wallet: https://blockchain.info/wallet/#/signup Get a Bitcoin Debit Card: http://bit.ly/2bitcoindebitcard Get a Bitcoin Visa: http://bit.ly/2bitcoinvisa Do You Need to Upgrade With Cash? http://bit.ly/BTCCoinMama Learn more about how you can earn income with the most amazing Bitcoin Project presented in at least the last 9 years. Find out how you can begin acquiring 62.76 Bitcoin each month We Grow Bitcoin, #wegrowbitcoins Your Timing to join us and be placed into the next highest position on our team, the fastest growing team in all of We Grow Bitcoins!!! Watch all the videos! Comment! Join and change your life! We Grow Bitcoins is the first Global Sharing Bitcoin network: a crowdfunding program using the blockchain as its own wallet infrastructure. It gives you the possibility of acquiring Bitcoin, worldwide via the internet and peer to peer sharing - all without limitations of exchanges. You only need an Internet connection provided by your service provider home, mobile or public WI-FI and a small fraction of Bitcoin to start. You can join our community for free and if you agree to share you will receive pages of information on Bitcoin, the Blockchain and how and when to share. http://bit.ly/TripleYourBitcoins Get a position for 100% FREE, then if you chose to share, upgrade to Level 1 by donating a small fraction of Bitcoin with the next 48 hours. Get Back To The Person That Shared This Video With You... Don't wait!!! First mover advantage right at the launch... "I joined at 5PM and had 5 people sending money to me the very next morning, and I had not told a single soul about it" This team is growing so fast that we'll have people receive over $60,000 in there first month." There is Nothing out there today that can hold a candle to this... Join Now!!!! Leave me a comment and I'll help you get the Bitcoins to get started and put you in the position to Get Cash Fast... We Grow Bitcoins will be the next “Big Thing”, —analysts predict a market value over $60,000 per Bitcoin by 2018. A new transfer of wealth may very well enter the world’s financial markets over the next three years. WGB is breaking into this paradigm by using an innovative 5x3 model that uses the upgrades or donations you receive, to help you move into each new level without ever purchasing additional Bitcoin again. This is because of the community beliefs that by sharing with one another, "If you give, you will receive" With only a small 5x3 matrix (155 total positions) it is easy to see why even the below average marketer can see above average success. We Grow Bitcoins, Bitcoin, Blockchain Wallet, Fundmycause, BTC, BlockchainWallet, fundmycause, facebook live, We Grow Bitcoins official launch, fund my cause compensation, fund my cause payplan, bitcoin 2017, How to Buy Bitcoin, How to join Gladicoin, How to trade on Polonix, How to trade on Bitfinex, How to buy ripple, how to get a bitpay credit card, how to join trade coin club, ant miner, genesis mining, bitpay, paxful, liberty x http://bit.ly/TripleYourBitcoins
How To Get A Transaction ID (Hash Code) When Block Explorer Down
 
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http://cryptomafia.co This is another method of getting your Transaction ID or Hash Code from coinbase when the block explorer is down.
Views: 517 Warp9
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: 2173123 3Blue1Brown
How to check Bitcoin transactions - Hodl Hodl Exchange
 
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In this video we use blockexplorer.com and blockchain.info to check our Bitcoin transactions, learning important information and details about our crypto transactions. Hodl Hodl Exchange: https://hodlhodl.com Hodl Hodl Exchange TESTNET: https://testnet.hodlhodl.com/ Follow us on Twitter: https://twitter.com/hodlhodl Join our Telegram chat: https://t.me/HodlHodl Read our Blog: https://medium.com/@hodlhodl Email: support@hodlhodl.com
Views: 103 Hodl Hodl exchange
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: 2017953 Simply Explained - Savjee
What does a Bitcoin transaction really look like?
 
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In this video, taken from a lesson in my Bitcoin Advanced Level: Transactions course, I show what a Bitcoin transaction really looks like. In other words, not just as it looks on a block explorer, but what the actual information recorded on the Bitcoin blockchain looks like. Sign up to receive George Levy's FREE email newsletter and a video email course on blockchain, Bitcoin and cryptocurrency ($47 Value yours free) at: https://GeorgeLevy.com/Free George Levy is an instructor at Blockchain Institute of Technology, and the author of the best selling online courses Blockchain and Bitcoin Fundamentals, Cryptocurrency Fundamentals, Bitcoin Advanced Level: Transactions and multiple other courses. Subscribe to this channel to stay up to date on new educational videos published each Thursday! Follow George Levy at the following links: https://Twitter.com/GeorgeLevy https://Facebook.com/GeorgeLevyBlockchain (Official Facebook Page) Special offer for George Levy channel viewers, open a new Bitcoin wallet for Free and get $10 bonus in Bitcoin at: https://blockchaininformer.com/btcwallet
Views: 4043 George Levy
Blockchain/Bitcoin for beginners 6: blocks and mining, content and creation of bitcoin blocks
 
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In this video we introduce the basic concepts behind how new blocks are created in the Bitcoin blockchain. We start by taking another look at the blockchain.info website to see some sample blocks and then to a quick screencast explaining how new, unconfirmed transactions are collected by mining nodes and included in new transaction blocks, whose header needs to be hashed along with a random number to produce an output hash meeting a set requirement. I mention that the requirement is that the generated hash starts with a specified number of leading zeros...this is a slight (and very common) simplification, the reality is that the hash must be LESS than or equal to a specic 256 bit binary number. See here: https://youtu.be/4QxOUwG8a2Y I introduce the concepts of difficulty targets and validation of blocks
Views: 9379 Matt Thomas
Blockchain.ie - Irelands Blockchain Explorer
 
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http://www.Blockchain.ie - Irelands Blockchain Explorer Blockchain Ireland - n the context of its first digital currency, Bitcoin, a “Blockchain is a digital ledger that records every Bitcoin transaction that has ever occurred. It is protected by cryptography so powerful that breaking it is typically dismissed as “impossible”. More importantly, though, the blockchain resides not in a single server, but across a distributed network of computers. Accordingly, whenever new transactions occur, the blockchain is authenticated across this distributed network, then the transaction is included as a new “block” on the chain.” Bitcoin, in its simplest form is a digital currency. The Blockchain system itself is what allows people worldwide to transfer money quickly and at virtually no cost. Blockchain.ie are members & partly funded by the official Irish Bitcoin Foundation (http://www.Bitcoinirl.ie) & the Blockchain Standards Authority of Ireland (http://www.BSAI.ie) We recognise that decentralised and distributed digital currency and payment systems in which payments are processed and secured by advanced cryptography and distributed computing power is the way of the future. Our team, in the Fintech capital of the world – Dublin, Ireland, have been chosen to bring this futurism of the Blockchain, Bitcoin to this planet we call earth. Blockchain technology continues to redefine the global financial sector everyday. Futurism as its core – See what it can do for you. http://www.www.Blockchain.ie
Views: 180 Blockchain Ireland
Transaction and Proof Methods Used in Block Chain Technology Bitcoin and Gridcoin
 
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This is the first video in a series where I attempt to deconstruct complex topics related to Bitcoin, Gridcoin, and other Crypto-Currencies (alt-coins) that use block chain technology in a way everyone can understand. In this episode we talk about transaction signing, also known as timestamping or how transactions on the block chain are approved. We talk about the three primary methods, Proof of Work, Proof of Stake and Proof of Research. Leave a comment to let us know what topics you would like to see covered in future episodes
Views: 5256 Grid Research Corp
BlockChain Explained | What are Blocks | Bitcoin Transactions Demo | Block Chain concepts | POC
 
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This video explains What is a BlockChain, A demo with Bitcoin transaction, Use Cases and Security Considerations while implementing BlockChain.
Views: 166 Technlogy - Backers
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: 11175 Matt Thomas
How to Quickly make blockchain to confirm transaction
 
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Confirm your bitcon transaction quickly
Views: 24870 drigweeu henry
Bitcoin transaction demo
 
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Bitcoin transaction demo
Views: 3027 luke millard
How Bitcoin Works in 5 Minutes (Technical)
 
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A short introduction to 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. Written Version: http://www.imponderablethings.com/2014/04/how-bitcoin-works-in-5-minutes.html Less technical version: https://www.youtube.com/watch?v=t5JGQXCTe3c Donation address: 1K7A6wsyxj6fThtMYcNu6X8bLbnNKovgtP Germain caption translation provided by adi331 : 19s6rqRfHa19w7wcgwtCumPs1vdLDj1VVo (thanks!!)
Views: 5565105 CuriousInventor
Understand the Blockchain in Two Minutes
 
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Over the past decade, an alternative digital paradigm has slowly been taking shape at the edges of the internet. This new paradigm is the blockchain. After incubating through millions of Bitcoin transactions and a host of developer projects, it is now on the tips of tongues of CEOs and CTOs, startup entrepreneurs, and even governance activists. Though these stakeholders are beginning to understand the disruptive potential of blockchain technology and are experimenting with its most promising applications, few have asked a more fundamental question: What will a world driven by blockchains look like a decade from now? Learn more: http://www.iftf.org/blockchainfutureslab Contact us: http://www.iftf.org/blockchainfutureslab/contact
What are Bitcoin Transaction Confirmations?
 
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In this video I answer a question from one of the students of the Bitcoin Advanced Level Transactions Course and I explain what Bitcoin transaction confirmations are. Join me as I take you along while I conduct a real Bitcoin transaction, and we go for a ride along the Bitcoin blockchain so you can see the process of how transactions gain confirmations. Sign up to receive George Levy's FREE email newsletter and a video email course on blockchain, Bitcoin and cryptocurrency ($47 Value yours free) at: https://GeorgeLevy.com/Free Subscribe to this channel to stay up to date on new educational videos published each Thursday! Follow George Levy at the following links: https://GeorgeLevy.com (George Levy Website) https:/Twitter.com/GeorgeLevy https://Facebook.com/GeorgeLevyBlockchain (Official Facebook Page) Special offer for George Levy YouTube channel viewers, open a new Bitcoin wallet for Free and get $10 bonus in Bitcoin at: https://blockchaininformer.com/btcwallet
Views: 342 George Levy
What Bitcoin Miners Actually Do
 
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Blockchain explorers: blockchain.info, blockr.io, blockexplorer.com To do a SHA 256 on a string of text: http://www.xorbin.com/tools/sha256-hash-calculator To do a SHA 256 on a file: https://md5file.com/calculator My Medium Post that I used to make this video: https://medium.com/@TheAlexGalaxy/what-bitcoin-miners-actually-do-bc80185c0e52#.91ac9ld9h
Views: 96752 Alex Millar
VeriCoin Help: How to Navigate the VeriCoin Block Explorer
 
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Full Video Description Below Our Videos are Best Viewed in 720p HD Please LIKE, SUBSCRIBE and SHARE. Thank you! Like Bitcoin, VeriCoin also has its own Block explorer where users can confirm transactions and browse the network as a whole. Users can get the current Block Height, Age, Transactions, Value Out, Difficulty and how it was Extracted. In this tutorial a Community member explores the different aspects of CryptoID's Block Explorer including categories like the Latest Blocks, the Rich List, the Largest Wallets, an Overview Tab, an Extraction Tab, a Network tab (with GeoLocation) and a VeriCoin Overview Tab. *CryptoID: https://chainz.Cryptoid.info/vrc/ VeriCoin Website: http://VeriCoin.info VeriCoin Forums: https://VeriCoinForums.com VeriCoin Twitter: https://Twitter.com/VeriCoin VeriCoin Google+: https://Plus.Google.com/+VeriCoinChannel VeriCoin Facebook: https://Facebook.com/VeriCoin VeriCoin YouTube: https://YouTube.com/user/VeriCoinChannel VRC Faucet Tutorial: http://Vericoin-CryptoCurrency.Blogspot.com VRC Faucet Direct Link: http://fauc.at/Index/Vericoin SuperNET Website: http://SuperNET.org SuperNET Radio: http://SuperNETRadio.com
Views: 3398 VeriCoin
How To Find Your Bitcoin Transaction On The BlockChain - Hash ID.
 
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How To Find Your Bitcoin Transaction On The BlockChain - Hash ID. Get a Free Bitcoin wallet at Coinbase: http://coinbase.loubiz.com
Views: 226 Louis Miller
ep 14: OP_RETURN, proof of existence explained with demo
 
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In this video, I'm taking a slight diversion to introduce an example of how the blockchain can be used for things other than transfer payments in the underlying transaction currency of that particular blockchain. We look at how by using the OP_RETURN transaction output type, we can include up to 40 bytes of freeform data, in the bitcoin transaction. Once the transaction gets mined into a block, like any other transaction, it becomes part of the unchangeable history of the blockchain. One use of this is known as "proof of existence" - if you can encode the hash of any document or file or digital asset in the blockchain, you can prove beyond reasonable doubt that the file existed in that particular exact state on or prior to the timestamp on that block. This has all sorts of potential applications.... I take you through a live example of an upload to this great website https://proofofexistence.com/ - they provide an interface to get your files hashed (locally) and arrange for that hash to be included in the OP_RETURN of a bitcoin transaction. You can then see the hash in that transaction on the following blockchain explorer (some explorers don't show transactions with OP_RETURN statements in there) https://www.blocktrail.com/BTC/tx/9fc5c20918333683fece4d82aabcc7c225a03606ef2bd8ed286b64bf65890cd7 Any questions please ask
Views: 2744 Matt Thomas
How To Check Any Bitcoin Wallet Balance And Bitcoin Transactions | Bitcoin Book Give Away
 
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To Buy the book "BITCOIN BASICS: LOGIC AND MAGIC OF DIGITAL GOLD" click on the link :: https://amzn.to/2KiEj9S For Bitcoin and Cryptocurrency news follow our FACEBOOK PAGE:: https://www.facebook.com/bitcoinbasics.club Follow us on Quora:: https://www.quora.com/profile/Gaurav-Bansal-16 About the Video :: This video contains instructions on :: 1: How to check balance of any Bitcoin wallet in the world. 2: How to confirm the status of any Bitcoin Transaction. Note:: 1: To check the balance of any Bitcoin wallet, you shall require the wallet address 2: To confirm the status of any Bitcoin Transaction you need to have the Transaction ID (also referred as "Reference number" on some exchanges) Sources used :: Any of the following links can be used to perform the above-mentioned tasks:: 1: www.blockchain.info 2: www.blockexplorer.com
Views: 4262 Bitcoin Basics Club
Off Chain Transactions -  Bitcoin 2013 Conference -  Peter Todd
 
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Conference talk with Peter Todd about off chain transactions. http://www.ebuybitcoin.net
Views: 281 eBuy Bitcoin