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Bitcoin - Cryptographic hash function
 
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What cryptographic hash functions are and what properties are desired of them. More free lessons at: http://www.khanacademy.org/video?v=0WiTaBI82Mc 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: 220073 Khan Academy
What is a Bitcoin hash and SHA-256
 
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This video explains the concept of hashing and SHA-256 for newbies. For more information visit http://99bitcoins.com/what-is-bitcoin-hash/
Views: 57660 Ofir Beigel
Mining Bitcoin with pencil and paper
 
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Bitcoins are mined using a cryptographic algorithm called SHA-256. This algorithm is simple enough to be done with pencil and paper, as I show in this video. Not surprisingly, this is a thoroughly impractical way to mine. One round of the algorithm takes 16 minutes, 45 seconds which works out to a hash rate of 0.67 hashes per day. For details, see http://righto.com/sha
Views: 1185069 Ken Shirriff
Probability in Bitcoin Mining: The Hashing Function
 
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How does the hash function work in the world of Bitcoin mining? Peter Van Valkenburgh of the Coin Center explains how the hash function in Bitcoin uses entropy to select Bitcoin miners. As always, the Federalist Society takes no position on particular legal or public policy issues; all expressions of opinion are those of the speaker. Reach Peter Van Valkenburgh on Twitter: @valkenburgh https://twitter.com/valkenburgh Related links: What is Bitcoin Mining? https://youtu.be/qFOeFXwCuLw Bitcoin Hash Functions Explained https://www.coindesk.com/bitcoin-hash-functions-explained/ Bitcoin: Cryptographic Hash Functions (Khan Academy) https://www.khanacademy.org/economics-finance-domain/core-finance/money-and-banking/bitcoin/v/bitcoin-cryptographic-hash-function Bitcoin Miners Signal Revolt Amid Sluggish Blockchain https://www.bloomberg.com/news/articles/2017-03-13/bitcoin-miners-signal-revolt-in-push-to-fix-sluggish-blockchain Bitcoin Splits in 2 http://www.businessinsider.com/bitcoin-price-fork-happens-2017-8
Views: 42267 The Federalist Society
How Bitcoin mining actually works - What is the "cryptographic puzzle"?
 
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In this video I try to breakdown the "cryptographic problem" that people reference when they talk about bitcoin mining. 13uJjYF12aRVdwaiTmALx5XDfguQ9MnYtK
Views: 62273 Keifer Kif
What the Hash? - How Bitcoin and Blockchains use Hash Functions
 
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Learn what a hash function does and how it is used in bitcoin and blockchains in general. Leave questions in the comments and we'll do our best to answer! One way hash functions are used in the bitcoin network is to help secure transactions. They do this by creating a very difficult mathematical problem that miners must try and solve which in turn creates proof-of-work (POW) which leads to consensus across the network. To receive a FREE e-guide on How to Buy, Store and Invest in Cryptocurrency sign-up here: blockmatics.tech/eguide Thanks for watching! Instructor: Solomon Lederer, Ph.D. - @solled Directed by: Sean T. McKeough - @mckeough_ This video was produced by Blockmatics (TM). Copyright 2017 Blockmatics creates in-depth, interactive courses on blockchain technology designed for anybody. No coding necessary. To learn more: website: blockmatics.tech | follow us on twitter: @Blockmatics SHA256 Calculator Link http://passwordsgenerator.net/sha256-hash-generator/ Thank You to our Partner Rise. A Barclays Innovation Programme. To find out more: https://thinkrise.com
Views: 15730 Blockmatics
How Hash Algorithms Work – Bitcoin Hash Algorithm Explained
 
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How does hash algorithms actually work? Blockchain and Bitcoin utilise hash algorithms, but they can be somewhat hard to understand. This video aims to explain how these algorithms work, and what they are used for. 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: 2281 Oscar Alsing
Mining Bitcoin with Excel
 
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Learn how to mine Bitcoin with an Excel spreadsheet. Check out the following video for info on 21's Bitcoin computer, which can actually be used to mine Bitcoins and monetize your endpoint: https://youtu.be/mLwbBojDD_U In this video, we explain the algorithm behind Bitcoin mining and show you how you could (in theory) do it yourself! Download the spreadsheet here: https://www.dropbox.com/s/2erhq2uum7fvdc2/Bitcoin.xlsx?dl=0 See more at www.knowledgevideos.net The algorithm is from Jersey: 13GFWmp4HWdidJaTxWHCcaHPrqBPfddDHK NIST SHA-256 Description: http://csrc.nist.gov/groups/STM/cavp/documents/shs/sha256-384-512.pdf
Views: 169112 Knowledge
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
Hashing Algorithms and Security - Computerphile
 
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Audible free book: http://www.audible.com/computerphile Hashing Algorithms are used to ensure file authenticity, but how secure are they and why do they keep changing? Tom Scott hashes it out. More from Tom Scott: http://www.youtube.com/user/enyay and https://twitter.com/tomscott http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Pigeon Sound Effects courtesy of http://www.freesfx.co.uk/ Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 743652 Computerphile
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
Bitcoin - Hash Pointers and Data Structures
 
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Hash Pointers and Data Structures - Bitcoin and Cryptocurrency Technologies Part 1 - Introduction to Crypto and Cryptocurrencies Learn about cryptographic building blocks ("primitives") and reason about their security. Work through how these primitives can be used to construct simple crypto currencies.
Views: 1094 intrigano
Blockchain tutorial 3: Hash
 
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This is part 3 of the Blockchain tutorial explaining what hashes are. 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 #mobilefish #blockchain #bitcoin #cryptocurrency #ethereum
Views: 14029 Mobilefish.com
SHA: Secure Hashing Algorithm - Computerphile
 
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Secure Hashing Algorithm (SHA1) explained. Dr Mike Pound explains how files are used to generate seemingly random hash strings. EXTRA BITS: https://youtu.be/f8ZP_1K2Y-U Tom Scott on Hash Algorithms: https://youtu.be/b4b8ktEV4Bg http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 440546 Computerphile
What is Hashing & Digital Signature in The Blockchain?
 
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What is Hashing & Digital Signature in The Blockchain? https://blockgeeks.com/ Today, we're going to be talking about the word blockchain and breaking it down to understand what does it mean when someone says, "Blockchain." What is hashing? Hashing refers to the concept of taking an arbitrary amount of input data, applying some algorithm to it, and generating a fixed-size output data called the hash. The input can be any number of bits that could represent a single character, an MP3 file, an entire novel, a spreadsheet of your banking history, or even the entire Internet. The point is that the input can be infinitely big. The hashing algorithm [00:01:00] can be chosen depending on your needs and there are many publicly available hashing algorithms. The point is that the algorithm takes the infinite input of bits, applies some calculations to them, and outputs a finite number of bits. For example, 256 bits. What can this hash be used for? A common usage for hashes today is to fingerprint files, also known as check zones. This means that a hash is used to verify that a file has not been [00:01:30] tampered with or modified in any way not intended by the author. If WikiLeaks, for example, publishes a set of files along with their MD5 hashes, whoever downloads those files can verify that they are actually from WikiLeaks by calculating the MD5 hash of the downloaded files, and if the hash doesn't match what was published by WikiLeaks, then you know that the file has been modified in some way. How does the blockchain make use of hashes? [00:02:00] Hashes are used in blockchains to represent the current state of the world. The input is the entire state of the blockchain, meaning all the transactions that have taken place so far and the resulting output hash represents the current state of the blockchain. The hash is used to agree between all parties that the world state is one in the same, but how are these hashes actually calculated? The first hash is calculated for the first block [00:02:30] or the Genesis block using the transactions inside that block. The sequence of initial transactions is used to calculate a block hash for the Genesis block. For every new block that is generated afterwords, the previous block's hash is also used, as well as its own transactions, as input to determine its block hash. This is how a chain of blocks is formed, each new block hash pointing to the block hash that came before it. This system of hashing guarantees that no transaction in the history can be tampered with because if any single part of the transaction changes, so does the hash of the block to which it belongs, and any following blocks' hashes as a result. It would be fairly easy to catch any tampering as a result because you can just compare the hashes. This is cool because everyone on the blockchain only needs to agree on 256 bits to represent the potentially infinite state of the blockchain. The Ethereum blockchain is currently tens of gigabytes, but the current state of the blockchain, as of this recording, is this hexadecimal hash representing 256 bits. What about digital signatures? Digital signatures, like real signatures, are a way to prove that somebody is who they say they are, except that we use cryptography or math, which is more secure than handwritten signatures that can be [00:04:00] easily forged. A digital signature is a way to prove that a message originates from a specific person and no one else, like a hacker. Digital signatures are used today all over the Internet. Whenever you visit a website over ACTPS, you are using SSL, which uses digital signatures to establish trust between you and the server. This means that when you visit Facebook.com, your browser can check the digital signature that came with the web page to verify that it indeed originated from Facebook and not some hacker. In asymmetric encryption systems, users generate something called a key pair, which is a public key and a private key using some known algorithm. The public key and private key are associated with each other through some mathematical relationship. The public key is meant to be distributed publicly to serve as an address to receive messages from other users, like an IP address or home address. The private key is meant to be kept secret and is used to digitally sign messages sent to other users. The signature is included with the message so that the recipient can verify using the sender's public key. This way, the recipient can be sure that only the sender could have sent this message. Generating a key pair is analogous to creating an account on the blockchain, but without having to actually register anywhere. Pretty cool. Also, every transaction that is executed on the blockchain is digitally signed by the sender using their private key. This signature ensures that only the owner of the account can move money out of the account.
Views: 24196 Blockgeeks
21. Cryptography: Hash Functions
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas covers the basics of cryptography, including desirable properties of cryptographic functions, and their applications to security. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 69160 MIT OpenCourseWare
Visualizing Bitcoin Blockchain Block Hashes
 
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This video shows a visualization of the hashes of the blocks on the Bitcoin blockchain which shows the difficulty increasing over time. Scripts used to produce output: Script 1 to export data from bitcoin-cli: for block in $(seq 1 $(bitcoin-cli getblockcount)); do hash="`bitcoin-cli getblockhash $block`"; diff=`bitcoin-cli getblock $hash | grep "^ \"difficulty\" :" | awk '{print $3}' | tr -d ','` date=`bitcoin-cli getblock $hash | grep "^ \"time\" :" | awk '{print $3}' | tr -d ','` date2=`date -d @$date` printf "%-65s %-8s %-22s %-15s\n" $hash $block $diff "$date2" done Script 2 to produce output file: cat hashes | while read line; do hash=`echo $line | awk '{print $1}' | tr [a-z] [A-Z]` height=`echo $line | awk '{print $2}'` date=`echo $line | awk '{print $5 " " $6 " " $9}' ` export BC_LINE_LENGTH=300 bin=`echo "ibase=16;obase=2;$hash" | bc ` length=${#bin} zeros=`expr 256 - $length` for zero in `seq 1 $zeros `; do if [ "$zero" -eq 32 ] ; then echo -n -e '\E[37;41m'"\033[1m0\033[0m" else echo -n -e '\E[33;44m'"\033[1m0\033[0m" fi done printf "%-20s %-7s %-12s\n" "$bin" "$height" "$date" done
What is a Bitcoin hash and SHA-256
 
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This video explains the concept of hashing and SHA-256 for newbies. For the complete text guide visit: http://bit.ly/2DmxbJj Join our 7-day Bitcoin crash course absolutely free: http://bit.ly/2pB4X5B Learn ANYTHING about Bitcoin and cryptocurrencies: http://bit.ly/2BVbxeF Get the latest news and prices on your phone: iOS - https://apple.co/2yf02LJ Android - http://bit.ly/2NrMVw2 See anything we haven't covered? Leave us a comment in the comment section below
Views: 7006 99Bitcoins
How hash function work?
 
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What is hash function/algorithm? What is mainly used for? What are three basic characteristics of a secure hash algorithm? In this video, I will also demonstrate how hash function works. Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Advanced Cryptography: https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Please leave comments, questions, and Please subscribe! Thank you very much! Sunny Classroom
Views: 36661 Sunny Classroom
Bitcoin - Cryptographic Hash Functions
 
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Cryptographic Hash Functions - Bitcoin and Cryptocurrency Technologies Part 1 - Introduction to Crypto and Cryptocurrencies Learn about cryptographic building blocks ("primitives") and reason about their security. Work through how these primitives can be used to construct simple crypto currencies.
Views: 1625 intrigano
Bitcoin Mining in 4 Minutes - Computerphile
 
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When a Bitcoin Miner Mines, what is happening? Dr Mike Pound exposes the process.. note: at 3:39 Mike mentions a Bitcoin is mined every ten minutes when it is actually a block that is mined every ten minutes, at time of recording a successful block generates 12.5 new Bitcoins. Password Cracking: https://youtu.be/7U-RbOKanYs Onion Routing (TOR): https://youtu.be/QRYzre4bf7I https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 90644 Computerphile
What is SHA 256 - How sha256 algorithm works | sha 256 bitcoin | sha 256 blockchain | sha2 in hindi
 
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Hi friends many of you are perplexed when you hear the term SHA 256 and pretty curious to know how does it works? Therefore today I brought before you very day to day life examples to explain you very easily this complex concept and I hope if you watch the video till last very minutely then surely you gonna have a crystal clear idea about the working #SHA256 in Blockchain, bitcoin, and other cryptographic stuffs. There are plenty of uses and questions about sha 256 algorithm explanation and sha256 encryption are explained in many video but I am sure that this gonna make clear your every bit of doubts. ------------------------------------------------------------------------- SUBSCRIBE LIKE SHARE COMMENT #sha256algorithm #sha256hash What is sha 256, How it works, sha 256 algorithm, sha 256 bitcoin, sha 256 blockchain in hindi, sha 256 in blockchain, SHA, SHA1, Secure Hashing Algorithm, sha 256 explained in hindi, in hindi, sha 256 mining, sha 256 algorithm explanation, sha 256 hash algorithm example, what is sha 256 hashing algorithm, whay is sha 256 hash, sha algorithm in cryptography, how sha 256 works, how sha256 algorithm works, how sha2 works, how sha256 hash works
Views: 494 Geeks Prix
Advanced Bitcoin Scripting -- Part 1: Transactions & Multisig
 
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This is the first part of a more technical talk where Andreas explores Bitcoin script, with examples from the 2nd edition of Mastering Bitcoin, focusing on the use of conditional statements, flow control, guard clauses and time locks. The examples will include advanced multi-signature scripts, hash time lock contracts and asymmetric revocable commitments. Then he answers questions about Bitcoin's quirky bugs, where Bitcoin differs from Ethereum at a scripting level, how SegWit works, how consensus rules change, and whether Bitcoin is more than just a currency. Watch Part 2 here: https://youtu.be/pQbeBduVQ4I This talk took place at the San Francisco Bitcoin Developer (@SFBitcoinDev) meetup on April 3rd, 2017: https://www.meetup.com/SF-Bitcoin-Devs/events/238773843/ Review materials on the topics presented: Chpt. 7: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch07.asciidoc Chpt. 12: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch12.asciidoc The fundamentals of Bitcoin script 2:17 Bitcoin's operators 5:00 Creating transactions (P2PKH - Pay to Public Key Hash) 6:30 Public Key CheckSigs, security by obfuscating public keys 7:42 Redeeming the script 9:05 The RIPEMD160 hash operation 12:05 OP_EQUALVERIFY, OP_CHECKSIG, & the elliptic curve digital signature algorithm (ECDSA) 14:05 Summary 18:30 Illustrating scripts: Equal, EqualVerify, CheckSig, CheckVerify, CheckMultisig, CheckLockTimeVerify 19:45 Guard clauses 23:02 Script-based timelocks 24:53 Flow control statements, interactive artificial intelligence 26:50 If, Else, EndIf 28:35 Unlocking scripts, what conditional flows do in Bitcoin 33:55 1-of-2 multi-signature script 35:44 1-of-2 multi-signature script with guard clause 38:28 2-of-3 multi-signature script 41:30 2-of-3 multi-signature script with timelock guard clause 43:20 BIP-113, how time is referenced in Bitcoin 44:42 Backup clause & other nuances in multi-signature schemes 46:58 Game theory, complexity from simplicity 52:36 2-of-3 multi-signature script, unlocking 53:45 RELATED: Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0 The rules of Bitcoin (part 1) - https://youtu.be/VnQu4uylfOs The rules of Bitcoin (part 2) - https://youtu.be/vtIp0GP4w1E Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM Irreversibility and consumer protection - https://youtu.be/R107YWu5XzU Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-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 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! If you want early-access to talks and a chance to participate in a monthly LIVE Q&A with Andreas, become a patron: https://www.patreon.com/aantonop 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: 30024 aantonop
WTF is a Hash (and Hashing) in Blockchain?
 
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🚀 Get the iPhone App! ► http://cryptoyum.com ★ Another part of the Getting Started Series! Feel free to suggest what I do and share next! Subscribe and Share! // GET STARTED 🚀 Become a Cryptonaut - Support us on http://patreon.com/pub 💻 Join us at the PUB! - http://thebitcoin.pub 🔑 Sign up for our Decentralized Newsletter - https://dctv.co/dctv-news 💰Get a Coinbase Wallet! - http://dctv.co/dctv-coinbase - Sign up! // WE DO SOCIAL 📔 Twitter - https://dctv.co/dctv-twitter 📔 Facebook - https://dctv.co/dctv-fb 💻 Google+ - https://dctv.co/dctv-googleplus ✏️ LinkedIn - https://dctv.co/dctv-linkedin Note: This is not financial advice as all investing is speculative. Have fun and good luck!
Views: 1395 Decentralized TV
How secure is 256 bit security?
 
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Supplement to the cryptocurrency video: How hard is it to find a 256-bit hash just by guessing and checking? What kind of computer would that take? Cryptocurrency video: https://youtu.be/bBC-nXj3Ng4 Thread for Q&A questions: http://3b1b.co/questions Several people have commented about how 2^256 would be the maximum number of attempts, not the average. This depends on the thing being attempted. If it's guessing a private key, you are correct, but for something like guessing which input to a hash function gives a desired output (as in bitcoin mining, for example), which is the kind of thing I had in mind here, 2^256 would indeed be the average number of attempts needed, at least for a true cryptographic hash function. Think of rolling a die until you get a 6, how many rolls do you need to make, on average? 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: 938989 3Blue1Brown
SHA-256 The Center Of Bitcoin - Andreas M.  Antonopoulos
 
01:22:48
►Edited by Crypto Current, Original Video Here: https://youtu.be/fw3WkySh_Ho ► These Andreas Antonopoulous videos are an editorial work by Crypto Current. Find all of Andreas’ original talks on his YouTube channel here: https://www.youtube.com/user/aantonop If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become an Andreas Antonopoulous patron here: https://www.patreon.com/aantonop Andreas M. Antonopoulos is a best-selling author, speaker, educator, and one of the world’s foremost bitcoin and open blockchain experts. He is known for delivering electric talks that combine economics, psychology, technology, and game theory with current events, personal anecdote, and historical precedent effortlessly transliterating the complex issues of blockchain technology out of the abstract and into the real world. ►Follow Andreas on Twitter: @aantonop https://twitter.com/aantonop ►Andreas Website: https://antonopoulos.com/ Andreas is the author of three books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin, “Mastering Ethereum: Building Smart Contracts and Dapps” the best technical guide to Ethereum and “The Internet of Money,” a book about why bitcoin matters. ►Get Mastering Bitcoin Here: https://amzn.to/2w9HBYy ►Get Mastering Ethereum Here: https://amzn.to/2CHIvzw ►Get Internet of Money Here: Vol 1: https://amzn.to/2MxRYQb Vol 2: https://amzn.to/2o2KqGl Crypto Current Links: ►Buy Bitcoin get $10 Free at http://bit.ly/TE_Coinbase ►Get your FREE Crypto Start-Up Guide at http://bit.ly/TE_CryptoGuide ►Buy physical Silver & Gold at http://bit.ly/TE_Silver ►Join the bitcoin revolution, learn how to buy bitcoin: http://bit.ly/Howtobuybitcoins ►Support Crypto Current: Patreon: http://bit.ly/TE_Patreon PayPal: http://bit.ly/TE_Paypal ►Donate Crypto to Crypto Current: Bitcoin: 1FEQWdgBv9RjUjKt2oASXLTqAAiDo13zjx Ethereum: 0x8c918EAAe0F78829eaF3BdA93180D9Ce1099FcB8 Thank YOU for watching and supporting! #bitcoin #Antonopoulos #crypto #AndreasAntonopoulos #bitcoinnews #cryptocurrency #ethereum #stocks #blockchain #finance #btc #биткоин #tech #money #investing
Views: 860 Crypto Current
Passwords & hash functions (Simply Explained)
 
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How can companies store passwords safely and keep them away from hackers? Well let's find out! With all the data breaches lately, it's likely that the password of one of your accounts has been compromised. Hackers now might know the password you've used, but they also might not.. To understand why, we'll take a look at what methods a company can use to protect user passwords. We'll take a look at encryption, hash functions and a multilayer approach! 📚 Sources Can be found on my website: https://savjee.be/videos/simply-explained/hash-functions/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Bitcoin Q&A: Migrating to post-quantum cryptography
 
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Keywords/phrases: Quantum cryptography, quantum cryptoanalysis, quantum computing. Bitcoin uses SHA-256. In cryptography there is a 20-30 year lifecycle for an algorithm before it gets exceeded by new technologies and developments in mathematics. Both the signing and hashing algorithms can be upgraded in Bitcoin if there is a need to do that. Quantum cryptography represents a threat only if unevenly distributed in commercial sectors. If it is available to only one actor, and not all actors, they are unlikely to use it against Bitcoin; instead they're going to keep it secret and use it when they're threatened by ex. cryptographically secure nuclear weapons. Intelligence agencies who have that kind of significant computing advantage don't use it until there is a dire emergency, because once you use it everyone will know you have it. After that all the algorithms get changed, so you better make it good. If it is widely available, all the miners update to quantum computers and we're going to be looking at several orders of magnitude in improvement, because running one is neither free nor easy. We don't know what the economics will be yet, but we will solve problems when it's necessary. Corporations and governments are not going to be happy with Bitcoin. Kings were not happy and yet the revolution happened anyway. Bitcoin is a global and technological revolution. They have adapted to new technologies for hundreds of years. The fact that they won't be happy doesn't concern me, because Bitcoin is a system that doesn't require their permission, approval, or cooperation. They can pretend it's going away but it isn't. We can talk all day about whether the government should or shouldn't regulate Bitcoin, but the real question is whether they can. They can regulate at the edge, the behaviour of users, but they can't regulate Bitcoin itself. Bitcoin is exciting because it introduces a new choice; it's not saying you can't do the old way (hierarchical central banking, border-restricted jurisdictions for currencies ), it's saying we can also do this.
Views: 19509 aantonop
Do you REALLY understand Bitcoin 51% Attack? Programmer explains.
 
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Bitcoin 51% attack is a theoretical attack that can be caused by someone who possesses 51% or more of the hashing power in the network. Today we talk about exactly what this attack is and how it can be executed. 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: 74128 Ivan on Tech
Bitcoin basics: What is the difficulty target and how does it adjust itself?
 
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How bitcoin mining works: https://www.youtube.com/watch?v=IVqD-_QskW0
Views: 2553 Keifer Kif
Zcash Mining Bitcoin SHA-256 Blackcoin Scrypt Litecoin
 
03:45
Check Out My Video! https://youtu.be/grcWFgmtxYo
Views: 1860 siriusdish
Bitcoin tutorial Episode 5: Cryptography, hash function, digital signature
 
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In this video we will look at Hash Functions Symmetric, Asymmetric Encryption and Digital Signatures
Views: 732 On1 Productions
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 If you want to contribute translated subtitles or to help review those that have already been made by others and need approval, you can click the gear icon in the video and go to subtitles/cc, then "add subtitles/cc". I really appreciate those who do this, as it helps make the lessons accessible to more people. 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: 2376913 3Blue1Brown
Cos'è la Bitcoin Hash Function? La Crittografia nella Blockchain
 
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Ricevi gratuitamente gli studi sui Pattern Armonici e di Analisi Tecnica ogni settimana sui mercati finanziari. Iscriviti qui: http://goo.gl/JIhOHJ ============= PARTECIPA AL MIO CORSO COMPLETO ONLINE SUL TRADING : https://goo.gl/8MGUDh ISCRIVITI AL MIO CORSO ONLINE SULLE CRIPTOVALUTE: https://goo.gl/i7FKxm ============= Puoi seguirmi sui miei canali social: TradingView: https://it.tradingview.com/u/marco_casario/ Facebook: https://www.facebook.com/The10MinTrader/ Twitter: https://twitter.com/The10MinTrader Instagram: https://www.instagram.com/the10mintrader/
Views: 2540 Marco Casario
How Does SHA256 Work?
 
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Since SHA1 has been broken, SHA256 is seen as one of the contenders to replace it. In this video I review why it might be needed and how it functions on a low and high level perspective by stepping through the algorithm with an example by converting abc to its digest. I did a similar explanation for SHA1 in another video so check that out. Ill also be doing some supplementary videos on the binary math...ill be having some fun with them :D Music Title Olympus by Ross Bugden https://www.youtube.com/watch?v=BnmglWHoVrk https://creativecommons.org/licenses/by/4.0/ Clips used One Piece film z - Eiichiro Oda, Tatsuya Nagamine Avatar the last Air Bender - Joaquim Dos Santos,Michael Dante DiMartino,Bryan Konietzko Ghost Pain - Masahiko Murata, Kazuchika Kise Terminator Genysis - Alan Taylor,Bill Carraro,Megan Ellison Phantasy Star Online - Keiichirô Kawaguchi,Kyohei Ito One Piece - Kōnosuke Uda, Eiichiro Oda,Alfred Kahn,Toei Animation,Yoshihiro Suzuki Animatrix- Peter Chung, Andrew R. Jones,Mahiro Maeda,Joel Silver The Matrix Reloaded - Lana Wachowski (as The Wachowski Brothers), Lilly Wachowski (as The Wachowski Brothers),Bruce Berman Bleach - Tite Kubo, TV Tokyo, Dentsu and Studio Pierrot Boruto: Naruto Next Generations - Noriyuki Abe and Hiroyuki Yamashita Samurai Champloo - Shinichirō Watanabe,Takatoshi Hamano,Takashi Kochiyama,Tetsuro Satomi
Views: 31579 EpicFactFind
Bitcoin - Proof of work
 
10:32
An explanation of cryptographic proof-of-work protocols, which are used in various cryptographic applications and in bitcoin mining. More free lessons at: http://www.khanacademy.org/video?v=9V1bipPkCTU 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: 186065 Khan Academy
Bitcoin hashes are just numbers. Programmer explains.
 
14:47
What are Bitcoin hashes and how can they be compared to hashes? https://steemit.com/@ivanli What is inside a bitcoin block: https://www.youtube.com/watch?v=qLM-UC_eqIY
Views: 2976 Ivan on Tech
Blockchain/Bitcoin for beginners 2: Hashing, blockchain networks, blockchain browser
 
26:39
Episode two of my series on Blockchain/Bitcoin. I build on the physical analogy in the first episode and explain the basic concepts behind a real blockchain network. Then go on to talk about hashing, and then give a live demo of the real Bitcoin blockchain to illustrate what a real blockchain looks like Bitcoin Blockchain browser https://blockchain.info Online hash calculator - great way to practice and familiarise with hash functions - one of the most important building blocks of Blockchain/Bitcoin http://www.fileformat.info/tool/hash.htm Course to date (previous videos) 1. https://youtu.be/xwA2TkcAQgQ
Views: 9801 Matt Thomas
Introduction to Bitcoin: What Is A Bitcoin Hash?
 
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Der all, this is Coin Girl and in today's video I want to talk and explain a bit what the Bitcoin Hash is. I talk about hash functions in general then how it applies to Bitcoin and why it gives so much power to the blockchain system. Read some more about hash and mining here: 1. https://coinsutra.com/bitcoin-hash/ 2. https://www.coindesk.com/bitcoin-hash-functions-explained/ If you enjoyed this video, you can buy me a cup of coffee using: Bitcoin: 1CGqMPRpsH2CNxkqbTU8mTGtoALSomPXny Ethereum: 0xe23F3F1Eaa8d96C5E5A5906E1666E35fF4C905FB Don't forget to engage with me on: Twitter: https://twitter.com/CoinGirlHere Facebook: https://www.facebook.com/coingirl/ Instagram: https://instagram.com/CoinGirlHere See you soon!
Views: 205 Coin Girl
How Does SHA-1 Work - Intro to Cryptographic Hash Functions and SHA-1
 
12:16
Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com SHA-1 stands for Secure Hash Algorithm 1, a cryptographic hash function developed by the NSA that can be used to verify that a file has been unaltered. In this video, we go over the basic features and common implementations of cryptographic hash functions before diving into the inner workings of a Javascript implementation of the SHA-1 function. Although out of use now, walking through the hash function code provides valuable insight into how these algorithms work. Watch this video to learn: - What are Cryptographic Hash Functions - Practical uses for Cryptographic Hash Functions - How does SHA-1 work
Views: 10206 Fullstack Academy
Hashing, Encryption, Blockchain & Bitcoin Mining with Python
 
01:51:19
This video illustrates the concepts of Hashing, Encryption, Blockchain and Bitcoin Mining by the use of straightforward Python code. It is from a free Webinar by The Python Quants. Check out our Python for Finance Online Training Classes, including the first University Certificate in Python for Finance. http://training.tpq.io
Views: 11898 Yves Hilpisch
Blockchain 101 - A Visual Demo
 
17:50
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: 928187 Anders Brownworth
BITCOIN [ Class 3]: Bitcoin Mining/ Proof of Work - Hash Functions - Merkle Trees (2018)
 
11:48
Get More Tech Videos - Subscribe ➜ http://bit.ly/2Mtee9Z Share This Video ➜ https://youtu.be/UH8zL-_1cx4 ---------------------------------------------------------------------------------------------------------------- In this Video you will learn in details what Mining in Bitcoin is all about. We dive deep into: 🔸 What exactly the miners have to do in order to mine the block 🔸 Their economical incentives 🔸 What is inside of a Block 🔸 What a Merkel Root & a Merkel Tree is 🔸 Hash Functions 🔸 & More.... Pay attention to this video, because this information is probably the most important and complete one, in order to take your knowledge about Bitcoin to the next level..... ---------------------------------------------------------------------------------------------------------------- 🔷 FIND ME ON SOCIAL MEDIA 🔷 ➜ Facebook: https://www.facebook.com/Tech-With-Catalina-424220764702118/ ➜ Steemit: https://steemit.com/@techwithcatalina/feed ➜ Instagram: https://www.instagram.com/techwithcatalina/ ➜ Twitter: https://twitter.com/techwithcatalin ***DISCLAIMER***: This is NOT financial advice. You are responsable for your decisions and investments you do. I am only sharing my personal opinion.
Views: 174 Tech with Catalina
What Bitcoin Miners Actually Do
 
09:54
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: 101166 Alex Millar
Bitcoin : How to Find Hash ID and What is it? | BITCOIN SIMPLIFIED #4
 
09:29
How to find your Bitcoin Transaction hash ID in the top 4 eWallets Xapo Blockchain Coinbase Circle What is Hash ID and How to Find your Hash ID for Bitcoin transactions? Find me on Facebook :   https://goo.gl/7fRuDH 🔑A MUST HAVE : BITCOIN SAFEST WALLET (hardware, offline) ►Ledger Nano S (Bitcoin, Ethereum, Dash, Ripple, Strat, PIVX and many more): http://bit.ly/2i5T2Nh 🚩 Get $10 worth of Bitcoin on your first $100 purchase from Coinbase with this link: http://bit.ly/2meNAEf 🚩 Mining Bitcoin : use the code 28Xwzx and get a discount every time you purchase hashpower to mine Bitcoin or Ethereum (and more) at: https://www.genesis-mining.com/ 🚩🚩Discount code : 28Xwzx (apply at purchase) 🏆 Popular Bitcoin Exchanges : •Binance http://bit.ly/2AMfkXA •Kucoin http://bit.ly/2Fq9FKc •Changely http://bit.ly/2wB4g1D •Poloniex https://poloniex.com 🌐To Buy Bitcoin (also Ethereum, Lite, Dash) try these: ►BitPanda (BTC, ETH, DASH) http://bit.ly/2qIwK2N ►Coinbase (BTC, ETH, LITE) http://bit.ly/2meNAEf ►Xapo : https://xapo.com ►💎Useful wallets with internal exchange features: ►Coinomi : https://coinomi.com (android mobile app) ►Exodus : https://www.exodus.io/ (desktop app) ►Jaxx : https://jaxx.io/ (chrome ext; desktop app; mobile app) 💻Find me on social media: ►Facebook : https://goo.gl/7fRuDH ►Twitter: https://twitter.com/busyjordy ►Steemit: https://steemit.com/@busyjordy 🚩 What Is Bitcoin and the Blockchain* • Bitcoin is a computer program, a payment system, a store of value, a digital asset and basically cash for the internet community. • Bitcoin operates independently of a central bank or Government. • Bitcoin transcends borders • Only 21million Bitcoin can be created. • Basic economics tells that Capped supply plus Increased Demand will result in an increase the value of Bitcoin overtime. • Bitcoin is digital cash - Valuable - Divisible - Portable - Durable Other useful links to buy Bitcoin: ►Local Bitcoins (world*) localbitcoins.com ►Argentina - https://www.ripio.com/es/comprar-bitcoins-argentina/ ►India - https://www.unocoin.com/ & https://www.zebpay.com/ ►Indonesia - bitcoin.co.id ►Philippines - coins.ph ►Singapore - coinhako.com ►Thailand - coins.th (* indicates some exceptions)
Views: 6266 OJ Jordan
Bitcoin Whiteboard: Bitcoin Consensus Algorithms - Andreas M. Antonopoulos
 
27:22
This is part of a presentation in collaboration with the Department of Computer Science, at University College London (UCL). Andreas is a UCL alumni. Part of an academic lecture that Andreas M. Antonopoulos gave at the beginning of 2016 explaining the consensus algorithm, "Proof of Work", used by bitcoin and many other blockchains. Watch the full presentation here https://youtu.be/fw3WkySh_Ho Andreas 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. Get the books on Amazon http://amzn.to/2zpekI0 Follow Andreas on Twitter @aantonop https://twitter.com/aantonop Subscribe to Andreas's YouTube channel https://www.youtube.com/user/aantonop Check out Andreas's website https://antonopoulos.com/ Support Andreas by becoming a Patreon https://www.patreon.com/aantonop This is part of a video that was first published under a creative commons licence https://creativecommons.org/ on 31 Jan 2016 the aantonop YouTube channel https://www.youtube.com/user/aantonop and can be found here https://youtu.be/fw3WkySh_Ho About the Creative Commons Licence: One goal of Creative Commons is to increase the amount of openly licensed creativity in “the commons” — the body of work freely available for legal use, sharing, repurposing, and remixing. Follow Bitcoinboy on Twitter @BitCoinBoy https://twitter.com/BitCoinBoy If you'd like to support this channel 1BtCboyxPL4WNutwq79oqsQ5Vc25SchoZp
Views: 2973 Bitcoinboy
CRYPTO PREDICTIONS 2019 | FREE BITCOIN HEX | TRON DEVELOPMENTS
 
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#newkidsontheblockchain #cryptonews #bitcoinhex Following on from our mammoth EOS special last week The New Kids On The Blockchain are back to our usual crypto and blockchain format. On this weeks show. News Roundup (see below for notes) David Siegel on the year ahead in crypto and tokenisation, security tokens, equity tokens and more. Check him out here: 👉https://pillarproject.io/ 👉https://medium.com/@pullnews Richard Heart talks about launch of Bitcoin Hex and how to get your free coins. Check him out here: 👉Bitcoin Hex https://bitcoinhex.com/ 👉https://www.youtube.com/channel/UCta3TYFhzfpPvOtKBDifYJA 👉@RichardHeartWin ‏ NEWS: 👉From coin market cap it’s a mild red pretty much across the board today (at time of press Sat 19th 7am) 👉From INVEST IN BLOCKCHAIN 5 Crypto Predictions For 2019 1. The BTC Bear Market is Over, No New Highs and No New Lows 2. Some Altcoins Reach and Exceed Their Previous All-Time Highs (in BTC) 3. Regulators Target Some Big-Name ICOs, Refunding Investors 4. Ethereum Goes Proof-of-Stake 5. 51% Attacks Increase on “Shared Hashing Algorithm” Coins 👉FROM NEWSBTC Crypto Market Wrap: TenX Surging on Reissued PAY Credit Cards TenX tops the fomo chart for the top one hundred at the moment with a surge of almost 50%. The reissue of PAY powered credit cards in Singapore appears to be driving momentum. South Koreans are jumping on this token as Bithumb gets almost half the daily volume in KRW at the moment. 👉FROM COIN TELEGRAPH Crypto Analyst Brian Kelly: ‘No Shot’ for Bitcoin ETF in 2019 Crypto entrepreneur and regular contributor to CNBC, Brian Kelly, claimed that there is no chance for a Bitcoin (BTC) exchange-traded fund (ETF) approval in 2019. Discussing the overall state of the cryptocurrency market, Kelly predicted that 2019 will turn out better than 2018. The analyst argued that “we are somewhere close to the end of [the bear market], but we might have another dip lower, it wouldn’t surprise me at all.” 👉FROM AMB CRYPTO Tron is expected to launch BitTorrent livestreaming feature in 2019 Tron [TRX], the ninth largest cryptocurrency by market cap, continues to strive forward in the market. The Foundation has made another announcement pertaining to their next big plan for BitTorrent, one of the biggest Torrent platform around the globe with over 100 million monthly users. https://www.investinblockchain.com/crypto-predictions-2019/ https://www.newsbtc.com/2019/01/19/crypto-market-wrap-tenx-surging-on-reissued-pay-credit-cards/ https://coinmarketcap.com/ https://cointelegraph.com/news/crypto-analyst-brian-kelly-no-shot-for-bitcoin-etf-in-2019 https://ambcrypto.com/tron-is-expected-to-launch-bittorrent-livestreaming-feature-in-2019-says-foundation/ 👉Don’t forget to check out Crypto Smoothie at www.cryptosmoothie.com 👉https://www.newkidsontheblockchain.com/ 🎶🎵Music by http://www.bensound.com With any film clips used or news stories featured we are NOT claiming ownership and the copyright remains with the owner and we are using under fair use. NB. All information shared here is for information only and should not be considered any kind of financial advice. Always do your own research.
Blockchain/Bitcoin for beginners 8: Bitcoin addresses, public key hash, P2PKH transactions
 
23:28
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: 11352 Matt Thomas
Blockchain/Bitcoin for beginners 9: Bitcoin difficulty, target, BITS  - all you need to know
 
48:16
In this video I break the somewhat confusing and mysterious question of how exactly the block difficulty is defined, represented and updated. There is a simplification/misconception that the requirement is just to find a hash with a required number of leading zeros in hex. This is not the case, it's a little more intricate than that.... I show some examples of real blocks - in particular focusing on the genesis block, and how import it is for initializing the difficulty of mining a block. I clarify the relationship between BITS (in the block header) difficulty, and the actual 256 hash target. Links Blockchain explorer https://www.smartbit.com.au/ Difficult history chart http://www.coindesk.com/data/bitcoin-mining-difficulty-time/ Hex converter http://www.binaryhexconverter.com/hex-to-decimal-converter
Views: 5647 Matt Thomas
What Hashing is and How Mining Works - BCH Hard Fork Hash War
 
20:33
Visit our website: https://altcoinbuzz.io In this video, Kunal describes what hashing means in cryptocurrency, what constitutes a hash rate, and how mining works. He explains how hash rate is a determination of productivity, and how processing power is the new currency. ----------------------------------------------------------------------------------- CHECK OUT OUR PODCAST: https://bit.ly/2sZCAiF New episode every Monday and Friday! ----------------------------------------------------------------------------------- Check out Altcoin Buzz Ladies! https://www.youtube.com/channel/UCxulvI2C9wUvvDDNS7S35fA/videos ---------------------------------------------------------------------------------- Connect with us on Social Media: Twitter: https://bit.ly/2GDAoCp Facebook: https://bit.ly/2wYksLB Telegram: https://bit.ly/2IAqDuI ---------------------------------------------------------------------------------- Looking for the best cryptocurrency wallets? Check these out: BitLox: https://bit.ly/2rWQnHa CoolWallet S: https://bit.ly/2Liy5bv Trezor: https://bit.ly/2IXrZic Ledger Nano S: https://bit.ly/2IyE3al KeepKey: https://bit.ly/2x5TlhM Read about them here: https://bit.ly/2rTdthZ --------------------------------------------------------------------------------- References: 1) https://www.blockchain.com/explorer 2) https://www.techopedia.com/definition/14316/hashing 3) https://www.investopedia.com/terms/p/productivity.asp 4) https://www.webopedia.com/TERM/C/cryptocurrency-mining.html 5) https://github.com/tpruvot/ccminer/releases 6) https://www.extremetech.com/computing/251379-cryptocurrency-craze-sends-gpu-prices-skyrocketing 7) https://en.bitcoinwiki.org/wiki/Mining_algorithms 8 ) https://bitcoin.stackexchange.com/questions/9219/what-is-the-difference-between-kh-s-mh-s-and-gh-s 9) https://bitinfocharts.com/comparison/bitcoin-hashrate.html 10) https://www.blockchain.com/en/charts/hash-rate 11) https://data.bitcoinity.org/bitcoin/hashrate/6m?c=m&g=15&t=a 12) https://www.cryptocompare.com/mining/calculator/btc?HashingPower=&HashingUnit=TH%2Fs&PowerConsumption=1234&CostPerkWh=0.001&MiningPoolFee=1 13) https://www.bitcoinblockhalf.com/ 14) https://altcoinbuzz.io/bitcoin-cash-fork-bitcoin-abc-vs-bitcoin-satoshis-vision/ 15) https://www.ccn.com/hash-wars-calvin-ayre-coingeek-refuse-to-concede-defeat-in-bitcoin-cash-fork-fight/ -------------------------------------------------------------------------------- DISCLAIMER The information discussed on the Altcoin Buzz YouTube, Altcoin Buzz Ladies YouTube, Altcoin Buzz Podcast or other social media channels including but not limited to Twitter, Telegram chats, Instagram, facebook, website etc is not financial advice. This information is for educational, informational and entertainment purposes only. Any information and advice or investment strategies are thoughts and opinions only, relevant to accepted levels of risk tolerance of the writer, reviewer or narrator and their risk tolerance maybe different than yours. We are not responsible for your losses. Bitcoin and other cryptocurrencies are high-risk investments so please do your due diligence and consult the financial advisor before acting on any information provided. Copyright Altcoin Buzz Pte Ltd. All rights reserved.
Views: 2211 Altcoin Buzz

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