• The Bitcoin and Blockchain Technology Explained

    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 b...

    published: 23 Jun 2015
  • What is Blockchain

    Blockchain explained. Shai Rubin, CTO of Citi Innovation Lab, explains in an easy and simple way the basics of blockchain.

    published: 09 Jun 2016
  • How the blockchain is changing money and business | Don Tapscott

    What is the blockchain? If you don't know, you should; if you do, chances are you still need some clarification on how it actually works. Don Tapscott is here to help, demystifying this world-changing, trust-building technology which, he says, represents nothing less than the second generation of the internet and holds the potential to transform money, business, government and society. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and translated subtitles in many languages at http://www.ted.com/translate ...

    published: 16 Sep 2016
  • What Is Blockchain?

    By using math and cryptography, Blockchain is challenging the status quo in a radical way. Will governments and financial institutions embrace it?

    published: 21 Jan 2016
  • Block chain technology

    Read our report on the future of distributed ledger (or block chain) technology https://www.gov.uk/government/publications/distributed-ledger-technology-blackett-review

    published: 19 Jan 2016
  • Developing Blockchain Software

    This talk will explain what public blockchain systems like Bitcoin and Ripple are, the unique challenges of developing software for them, and how C++ helps to meet these challenges. Security issues are paramount. Blockchain systems are open source, have large attack surfaces, and can cause significant financial damage if they have exploitable defects. Performance and scalability are also major concerns. C++ provides a unique balance that helps meet these challenges. The language's design makes it possible to catch bugs at compile time, write modular code that can be tested, develop flexible data structures and manage resources. Yet, where performance is critical, it does not obscure what your code is making the computer actually do. EVENT: CppCon 2016 (http://CppCon.org) SPEAKER: David...

    published: 23 Nov 2017
  • How does a blockchain work - Simply Explained

    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

    published: 13 Nov 2017
  • 19 Industries The Blockchain Will Disrupt

    The blockchain is a distributed ledger technology that underlies cryptocurrencies like Bitcoin and platforms like Ethereum. It provides a way to record and transfer data that is transparent, safe, auditable, and resistant to outages. The blockchain has the ability to make the organizations that use it transparent, democratic, decentralized, efficient, and secure. It's a technology that holds a lot of promise for the future, and it is already disrupting many industries. Original post: http://futurethinkers.org/industries-blockchain-disrupt More podcasts & videos about the blockchain: http://futurethinkers.org/blockchain Support us on Patreon: https://www.patreon.com/futurethinkers Check out our merch store: https://www.redbubble.com/people/futurethinkers Blockchain startups and projec...

    published: 15 Jun 2017
  • How it Works: Blockchain

    Learn more about how blockchain works and see it in action within the diamond industry, which has been plagued by fraud, theft and controversy.

    published: 23 Sep 2016
  • Understand the Blockchain in Two Minutes

    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

    published: 18 Apr 2016
  • Blockchain Basics Explained - Hashes with Mining and Merkle trees

    A brief and simple introduction to the hash function and how blockchain solutions use it for proof of work (mining) and data integrity (Merkle Trees).

    published: 07 Feb 2016
  • Building a Blockchain in Under 15 Minutes - Programmer explains

    I wanted to demonstrate that the concept of a blockchain that powers almost all of the modern cryptocurrencies is very simple at its core. Bitcoin, Ethereum, Litecoin etc all are based on this blockchain technology. Many people think that the blockchain is a complicated thing while at it's core its just a clever use case of hashes. Enjoy guys! CODE: https://github.com/ivan-liljeqvist/SimpleBlockchain JOIN MY EXCLUSIVE MAILING LIST FOR EVEN MORE BLOCKCHAIN KNOWLEDGE: http://eepurl.com/c0hyc9 ESSENTIAL CRYPTO RESOURCES Hardware wallets: ♥ TREZOR https://trezor.io ♥ LEDGER NANO S https://www.ledgerwallet.com/r/4607 To buy cryptocurrencies: ♥ Coinbase https://www.coinbase.com/join/529bab0ab08ded7080000019 JOIN SLACK COMMUNITY http://slack-invite-ivan-on-tech.herokuapp.com https://stee...

    published: 31 Aug 2017
  • How the blockchain will radically transform the economy | Bettina Warburg

    Say hello to the decentralized economy -- the blockchain is about to change everything. In this lucid explainer of the complex (and confusing) technology, Bettina Warburg describes how the blockchain will eliminate the need for centralized institutions like banks or governments to facilitate trade, evolving age-old models of commerce and finance into something far more interesting: a distributed, transparent, autonomous system for exchanging value. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and transla...

    published: 08 Dec 2016
  • Blockchain 101 - A Visual Demo

    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

    published: 05 Nov 2016
  • The Bitcoin Blockchain Explained

    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

    published: 06 Jul 2016
  • Blockchain Overview

    Follow along with the eBook: https://goo.gl/EnpG5F or take the full course: http://complexitylabs.io/courses In this video, we are going to give a very high-level overview looking at the primary dimensions of this technology that we call the blockchain. We will firstly talk about the underlying technology, then the distributed ledgers that this technology supports, then the token economies those can be built on that ledger system. We will only touch upon these topics here to get an overview before going into them in more detail in future videos Produced by: http://complexitylabs.io Twitter: https://goo.gl/ZXCzK7 Facebook: https://goo.gl/P7EadV LinkedIn: https://goo.gl/3v1vwF

    published: 01 Jan 2018
  • Porgrammer explains PoW vs PoS | Blockchain

    What is the difference between proof of work and proof of stake?

    published: 06 May 2017
  • Blockchain Demystified | Daniel Gasteiger | TEDxLausanne

    A short story on how this new technology is shaping and moving beyond the bitcoin hype. In this talk, Daniel will attempt to reveal the principle behind Blockchain, its potential to defy current systems and why Blockchain is probably the biggest technological invention since the PC in the 1970s and the Internet in the 1990s. Daniel Gasteiger is an entrepreneur based in Zurich, co-founder of nexussquared. Daniel carries a driving passion to support and further develop the Swiss blockchain ecosystem. He embodies more than 20 years of experience in financial services - starting out as an FX trader at Credit Suisse, he then joined UBS in a variety of roles including until recently, managing the Chairman’s office as a Managing Director. In his recent co-authored whitepaper, “Act Now or Follow...

    published: 25 Apr 2016
  • IoT Blockchain Convergence

    Short video slide about the convergence of The Internet of Things(IoT) and the blockchain. Produced by: http://complexitylabs.io Twitter: https://goo.gl/ZXCzK7 Facebook: https://goo.gl/P7EadV LinkedIn: https://goo.gl/3v1vwF Transcription: The internet is evolving into a new technology paradigm based around smart systems, the blockchain, platforms, and IoT in the coming years, these technologies will interact and converge in new and unpredictable ways The convergence of IoT and blockchain will be a major part of this evolution, enabling new automated service systems and business models... but many unresolved issues remain IOT Internet of Things is the merging of our engineered physical environment with information systems to create smart adaptive objects and environments... it ...

    published: 25 Jun 2017
  • Cryptocurrency & Blockchain

    An in-depth look at Cryptocurrency & Blockchain, what they are, how they differ from existing methods, and what the advocates and critics have to say about them. Visit our Website: http://www.isaacarthur.net Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/ Support the Channel on Patreon: https://www.patreon.com/IsaacArthur or with Bitcoin: https://www.coinbase.com/IsaacArthur Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/ Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/cryptocurrency Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier Further Reading: Original Paper on bitcoin: Satoshi Nakamoto, "Bitcoin: A Peer-to-Peer Electronic Cash System" https://bitcoin.org/bit...

    published: 13 Oct 2016
  • Blockchain - A short introduction

    What is the Blockchain? This 2 minute video explains it in a very easy way. As usual, please leave you questions and ideas in the comments. with love your MinuteVideos Team Video Script: Scene 1 Blockchain is a Peer to Peer software technology that protects the integrity of a digital piece of information. It was invented to create the alternative currency Bitcoin but may be used for other cryptocurrencies, online signature services, voting systems and many other applications. In this video we explain how it works and what makes it special. Scene 2 Everyone uses paper money. When you get a 10 dollar bill you trust that it's not fake. If instead someone sent you an email saying "here's 10 dollars" you probably wouldn’t trust it. But when we "transfer money", use an ATM or pay with...

    published: 29 Apr 2016
  • Blockchain Technology Explained: What is a Blockchain?

    This video https://youtu.be/eXJHPDs4M3Y provides an easy to understand introduction to Blockchain Technology. Please leave comments and questions below the video. Here is the full transcript for your convenience: What is a Blockchain? A Blockchain is a distributed database that multiple parties share and everyone can trust. A Blockchain network provides a mutually trusted, transparent way of sharing and transacting. Each party participating in a Blockchain network maintains their own copy of the database. What makes Blockchain secure? Transactions on the database are atomic (this means that they're processed one at a time). The next transaction will be a different write or a read, but only after the preceding transaction has completed (or failed). Each write to the database is consider...

    published: 12 Mar 2017
  • Blockchain Simplified: Centralized Systems vs Distributed Systems - The Basics - E01

    The term 'blockchain' has been increasingly thrown around due to a rise in cryptocurrency popularity. Here is a speedy explanation of what it is and how it works. The below terms may be useful before watching the video: Encryption: - The process of converting information or data into a code, mainly to prevent unauthorized access. Hash Code: - A hash function is any function that can be used to map data of arbitrary size to data of fixed size. The values returned by a hash function are called hash values, hash codes, digests, or simply hashes. Centralized System: - A system where decisions for the system goal are made in a central mechanism and transmitted to executive components. Distributed System: - A distributed system consists of a collection of autonomous computers, connected th...

    published: 25 Jun 2017
  • Blockchain: Massively Simplified | Richie Etwaru | TEDxMorristown

    Richie Etwaru, discusses the opportunity and implications of blockchain as a paradigm to slow/chose the expanding trust gap in commerce. He unpacks blockchain to a level of simplicity to be consumed by those that are just starting to understand and explore the paradigm. He lays out a current state of commerce, suggesting that every company is currently at risk of being disrupted or incurring severe strain from a blockchain version of itself. Professionally, Richie Etwaru is a c-level at a Fortune 500 Company, an author, the owner of international patents, the founder of multiple ventures, an experienced keynote speaker, an angel investor, a member of advisory boards, and a recognized thought leader in the area of digital, technology, and design. Specific to this TEDx talk, Richie is an...

    published: 15 May 2017
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The Bitcoin and Blockchain Technology Explained
6:16

The Bitcoin and Blockchain Technology Explained

  • Order:
  • Duration: 6:16
  • Updated: 23 Jun 2015
  • views: 370989
videos
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
https://wn.com/The_Bitcoin_And_Blockchain_Technology_Explained
What is Blockchain
13:59

What is Blockchain

  • Order:
  • Duration: 13:59
  • Updated: 09 Jun 2016
  • views: 1140616
videos
Blockchain explained. Shai Rubin, CTO of Citi Innovation Lab, explains in an easy and simple way the basics of blockchain.
https://wn.com/What_Is_Blockchain
How the blockchain is changing money and business | Don Tapscott
18:50

How the blockchain is changing money and business | Don Tapscott

  • Order:
  • Duration: 18:50
  • Updated: 16 Sep 2016
  • views: 997219
videos
What is the blockchain? If you don't know, you should; if you do, chances are you still need some clarification on how it actually works. Don Tapscott is here to help, demystifying this world-changing, trust-building technology which, he says, represents nothing less than the second generation of the internet and holds the potential to transform money, business, government and society. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and translated subtitles in many languages at http://www.ted.com/translate Follow TED news on Twitter: http://www.twitter.com/tednews Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: http://www.youtube.com/user/TEDtalksDirector
https://wn.com/How_The_Blockchain_Is_Changing_Money_And_Business_|_Don_Tapscott
What Is Blockchain?
2:20

What Is Blockchain?

  • Order:
  • Duration: 2:20
  • Updated: 21 Jan 2016
  • views: 547772
videos
By using math and cryptography, Blockchain is challenging the status quo in a radical way. Will governments and financial institutions embrace it?
https://wn.com/What_Is_Blockchain
Block chain technology
5:15

Block chain technology

  • Order:
  • Duration: 5:15
  • Updated: 19 Jan 2016
  • views: 238086
videos
Read our report on the future of distributed ledger (or block chain) technology https://www.gov.uk/government/publications/distributed-ledger-technology-blackett-review
https://wn.com/Block_Chain_Technology
Developing Blockchain Software
59:37

Developing Blockchain Software

  • Order:
  • Duration: 59:37
  • Updated: 23 Nov 2017
  • views: 129110
videos
This talk will explain what public blockchain systems like Bitcoin and Ripple are, the unique challenges of developing software for them, and how C++ helps to meet these challenges. Security issues are paramount. Blockchain systems are open source, have large attack surfaces, and can cause significant financial damage if they have exploitable defects. Performance and scalability are also major concerns. C++ provides a unique balance that helps meet these challenges. The language's design makes it possible to catch bugs at compile time, write modular code that can be tested, develop flexible data structures and manage resources. Yet, where performance is critical, it does not obscure what your code is making the computer actually do. EVENT: CppCon 2016 (http://CppCon.org) SPEAKER: David Schwartz PERMISSIONS: Event organizer provided Coding Tech with the permission to republish this video. ORIGINAL SOURCE: https://www.youtube.com/watch?v=w4jq4frE5v4&t=1s
https://wn.com/Developing_Blockchain_Software
How does a blockchain work - Simply Explained
6:00

How does a blockchain work - Simply Explained

  • Order:
  • Duration: 6:00
  • Updated: 13 Nov 2017
  • views: 1425917
videos
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
https://wn.com/How_Does_A_Blockchain_Work_Simply_Explained
19 Industries The Blockchain Will Disrupt
9:57

19 Industries The Blockchain Will Disrupt

  • Order:
  • Duration: 9:57
  • Updated: 15 Jun 2017
  • views: 1155466
videos
The blockchain is a distributed ledger technology that underlies cryptocurrencies like Bitcoin and platforms like Ethereum. It provides a way to record and transfer data that is transparent, safe, auditable, and resistant to outages. The blockchain has the ability to make the organizations that use it transparent, democratic, decentralized, efficient, and secure. It's a technology that holds a lot of promise for the future, and it is already disrupting many industries. Original post: http://futurethinkers.org/industries-blockchain-disrupt More podcasts & videos about the blockchain: http://futurethinkers.org/blockchain Support us on Patreon: https://www.patreon.com/futurethinkers Check out our merch store: https://www.redbubble.com/people/futurethinkers Blockchain startups and projects featured in this video: Bitcoin - https://bitcoin.org/ Abra - https://www.goabra.com/ Provenance - https://www.provenance.org/ Fluent (Rebranded to Hijro) - https://hijro.com/ SKUChain - https://skuchain.com/ Blockverify - http://www.blockverify.io/ Augur - https://augur.net/ Networking and IoT Adept - http://www.coindesk.com/ibm-reveals-proof-concept-blockchain-powered-internet-things/ Aeternity - https://www.aeternity.com/ Arcade City - https://arcade.city/ La'Zooz - http://www.shareable.net/blog/lazooz-the-decentralized-crypto-alternative-to-uber Innogy - https://bitcoinmagazine.com/articles/innogy-charges-new-electric-car-fleet-using-ethereum-blockchain/ UBS - https://www.ubs.com/microsites/blockchain-report/en/home.html ZF - http://www.econotimes.com/UBS-bank-innogy-and-ZF-partner-to-provide-blockchain-backed-wallets-for-cars-471860 Online Data Storage Storj - https://storj.io/ IPFS - https://ipfs.io/ BitGive Foundation - https://bitgivefoundation.org/ Democracy Earth - http://democracy.earth/ Follow My Vote - https://followmyvote.com/ GovCoin - http://www.businesswire.com/news/home/20160707005803/en/GovCoin-Systems-Implements-Social-Welfare-Payments-Distribution Dubai Blockchain Strategy - http://www.smartdubai.ae/dubai_blockchain.php Circles - aboutcircles.com Gem - https://gem.co/ Tierion - https://tierion.com/ TransactiveGrid - http://transactivegrid.net/ Mycelia - http://myceliaformusic.org/ Ujo Music - https://ujomusic.com/ OpenBazaar - https://www.openbazaar.org/ OB1 - https://ob1.io/ Ubitquity - https://www.ubitquity.io/ Consensys - https://consensys.net/about/ Ethereum - https://www.ethereum.org/ Future Thinkers is a podcast about evolving technology, society and consiousness. If you want to learn more about the blockchain technology, you can listen to some of our episodes going in depth. http://futurethinkers.org/blockchain/ Support us on Patreon: https://www.patreon.com/futurethinkers Donate through Paypal or cryptocurrency: http://futurethinkers.org/support Check out our merch store: https://www.redbubble.com/people/futurethinkers
https://wn.com/19_Industries_The_Blockchain_Will_Disrupt
How it Works: Blockchain
3:35

How it Works: Blockchain

  • Order:
  • Duration: 3:35
  • Updated: 23 Sep 2016
  • views: 474523
videos
Learn more about how blockchain works and see it in action within the diamond industry, which has been plagued by fraud, theft and controversy.
https://wn.com/How_It_Works_Blockchain
Understand the Blockchain in Two Minutes
2:26

Understand the Blockchain in Two Minutes

  • Order:
  • Duration: 2:26
  • Updated: 18 Apr 2016
  • views: 1820533
videos
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
https://wn.com/Understand_The_Blockchain_In_Two_Minutes
Blockchain Basics Explained - Hashes with Mining and Merkle trees
3:24

Blockchain Basics Explained - Hashes with Mining and Merkle trees

  • Order:
  • Duration: 3:24
  • Updated: 07 Feb 2016
  • views: 171832
videos
A brief and simple introduction to the hash function and how blockchain solutions use it for proof of work (mining) and data integrity (Merkle Trees).
https://wn.com/Blockchain_Basics_Explained_Hashes_With_Mining_And_Merkle_Trees
Building a Blockchain in Under 15 Minutes - Programmer explains
14:28

Building a Blockchain in Under 15 Minutes - Programmer explains

  • Order:
  • Duration: 14:28
  • Updated: 31 Aug 2017
  • views: 278117
videos
I wanted to demonstrate that the concept of a blockchain that powers almost all of the modern cryptocurrencies is very simple at its core. Bitcoin, Ethereum, Litecoin etc all are based on this blockchain technology. Many people think that the blockchain is a complicated thing while at it's core its just a clever use case of hashes. Enjoy guys! CODE: https://github.com/ivan-liljeqvist/SimpleBlockchain JOIN MY EXCLUSIVE MAILING LIST FOR EVEN MORE BLOCKCHAIN KNOWLEDGE: http://eepurl.com/c0hyc9 ESSENTIAL CRYPTO RESOURCES Hardware wallets: ♥ TREZOR https://trezor.io ♥ LEDGER NANO S https://www.ledgerwallet.com/r/4607 To buy cryptocurrencies: ♥ Coinbase https://www.coinbase.com/join/529bab0ab08ded7080000019 JOIN SLACK COMMUNITY http://slack-invite-ivan-on-tech.herokuapp.com https://steemit.com/@ivanli
https://wn.com/Building_A_Blockchain_In_Under_15_Minutes_Programmer_Explains
How the blockchain will radically transform the economy | Bettina Warburg
14:58

How the blockchain will radically transform the economy | Bettina Warburg

  • Order:
  • Duration: 14:58
  • Updated: 08 Dec 2016
  • views: 1249931
videos
Say hello to the decentralized economy -- the blockchain is about to change everything. In this lucid explainer of the complex (and confusing) technology, Bettina Warburg describes how the blockchain will eliminate the need for centralized institutions like banks or governments to facilitate trade, evolving age-old models of commerce and finance into something far more interesting: a distributed, transparent, autonomous system for exchanging value. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and translated subtitles in many languages at http://www.ted.com/translate Follow TED news on Twitter: http://www.twitter.com/tednews Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: http://www.youtube.com/user/TEDtalksDirector
https://wn.com/How_The_Blockchain_Will_Radically_Transform_The_Economy_|_Bettina_Warburg
Blockchain 101 - A Visual Demo
17:50

Blockchain 101 - A Visual Demo

  • Order:
  • Duration: 17:50
  • Updated: 05 Nov 2016
  • views: 808760
videos
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
https://wn.com/Blockchain_101_A_Visual_Demo
The Bitcoin Blockchain Explained
3:41

The Bitcoin Blockchain Explained

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  • Duration: 3:41
  • Updated: 06 Jul 2016
  • views: 100749
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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
https://wn.com/The_Bitcoin_Blockchain_Explained
Blockchain Overview
12:02

Blockchain Overview

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  • Duration: 12:02
  • Updated: 01 Jan 2018
  • views: 4462
videos
Follow along with the eBook: https://goo.gl/EnpG5F or take the full course: http://complexitylabs.io/courses In this video, we are going to give a very high-level overview looking at the primary dimensions of this technology that we call the blockchain. We will firstly talk about the underlying technology, then the distributed ledgers that this technology supports, then the token economies those can be built on that ledger system. We will only touch upon these topics here to get an overview before going into them in more detail in future videos Produced by: http://complexitylabs.io Twitter: https://goo.gl/ZXCzK7 Facebook: https://goo.gl/P7EadV LinkedIn: https://goo.gl/3v1vwF
https://wn.com/Blockchain_Overview
Porgrammer explains PoW vs PoS | Blockchain
11:18

Porgrammer explains PoW vs PoS | Blockchain

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  • Duration: 11:18
  • Updated: 06 May 2017
  • views: 26546
videos
What is the difference between proof of work and proof of stake?
https://wn.com/Porgrammer_Explains_Pow_Vs_Pos_|_Blockchain
Blockchain Demystified | Daniel Gasteiger | TEDxLausanne
11:20

Blockchain Demystified | Daniel Gasteiger | TEDxLausanne

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  • Duration: 11:20
  • Updated: 25 Apr 2016
  • views: 318876
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A short story on how this new technology is shaping and moving beyond the bitcoin hype. In this talk, Daniel will attempt to reveal the principle behind Blockchain, its potential to defy current systems and why Blockchain is probably the biggest technological invention since the PC in the 1970s and the Internet in the 1990s. Daniel Gasteiger is an entrepreneur based in Zurich, co-founder of nexussquared. Daniel carries a driving passion to support and further develop the Swiss blockchain ecosystem. He embodies more than 20 years of experience in financial services - starting out as an FX trader at Credit Suisse, he then joined UBS in a variety of roles including until recently, managing the Chairman’s office as a Managing Director. In his recent co-authored whitepaper, “Act Now or Follow Later”, he achieves a remarkable ‘call to action’ by describing why Switzerland must seize the Fintech challenge. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx
https://wn.com/Blockchain_Demystified_|_Daniel_Gasteiger_|_Tedxlausanne
IoT Blockchain Convergence
5:33

IoT Blockchain Convergence

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  • Duration: 5:33
  • Updated: 25 Jun 2017
  • views: 8428
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Short video slide about the convergence of The Internet of Things(IoT) and the blockchain. Produced by: http://complexitylabs.io Twitter: https://goo.gl/ZXCzK7 Facebook: https://goo.gl/P7EadV LinkedIn: https://goo.gl/3v1vwF Transcription: The internet is evolving into a new technology paradigm based around smart systems, the blockchain, platforms, and IoT in the coming years, these technologies will interact and converge in new and unpredictable ways The convergence of IoT and blockchain will be a major part of this evolution, enabling new automated service systems and business models... but many unresolved issues remain IOT Internet of Things is the merging of our engineered physical environment with information systems to create smart adaptive objects and environments... it is a fast-growing, increasingly complex network of connected physical systems that are able to process information and communicate peer to peer in order to enable common services. These devices are becoming increasingly ubiquitous ranging from autonomous vehicles to sensors monitoring industrial processes, to smart homes and smart cities. IoT is growing rapidly, according to Gartner the global IoT network will connect 26 billion devices by 2020. The development of an IOT infrastructure to our economies will probably be the greatest engineering challenge of our time... dealing with the sheer amount of data due to come on-stream and security are primary concerns... before mainstream Internet-of-Things adoption can really take hold in a safe and sustainable fashion, these, among other issues, will need to be resolved. Blockchain The blockchain is a secure distributed database for recording transactions... millions of computers networked to create a distributed database for recording and authenticating exchanges of value. With the blockchain, value of any kind can be exchanged directly peer to peer without a centralized authority to record and validate the transaction. The blockchain can provide an automated and secure transaction infrastructure for next generation IoT systems... in its capacity to track billions of connected devices and enable the frictionless processing of transactions and coordination between devices. This decentralized approach would eliminate single points of failure, bottlenecks and potentially make data and transactions more secure.... creating a more resilient ecosystem for devices to run on. Likewise, it would automate transactions, enabling fully autonomous service systems; reduce cost and reduce settlement time from days to seconds One example of an IoT Blockchain system is Slock, a door lock that is connected to a smart contract on the blockchain that controls when and who can open the lock. “The owner of a Slock can set a deposit amount and a price for renting his property, and the user will pay that deposit through a transaction to the Ethereum blockchain, thereby getting permission to open and close that smart lock through their smart phone.” - Christoph Jentzsch Such technology bridges the blockchain and the physical world by making automated smart contracts, thus enabling the frictionless and automated temporary exchange of assets such as bikes, parking lots or rooms. "Smart contracts, a feature of “Bitcoin 2.0” technologies such as Ethereum, could soon operate on the Internet of Things (IoT), control objects in the physical world, and power a new decentralized version of the sharing economy, for example sharing services similar to Uber and Airbnb that operate in pure P2P mode without centralized management." - Bitcoin Magazine Leveraging blockchain for IoT offers new ways to automate business processes and build distributed autonomous service systems... "The true value of the underlying technology -- the blockchain -- has only just begun to be explored, and potential applications to the Internet of Things and Smart Systems are vast."
https://wn.com/Iot_Blockchain_Convergence
Cryptocurrency & Blockchain
30:17

Cryptocurrency & Blockchain

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  • Duration: 30:17
  • Updated: 13 Oct 2016
  • views: 86803
videos
An in-depth look at Cryptocurrency & Blockchain, what they are, how they differ from existing methods, and what the advocates and critics have to say about them. Visit our Website: http://www.isaacarthur.net Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/ Support the Channel on Patreon: https://www.patreon.com/IsaacArthur or with Bitcoin: https://www.coinbase.com/IsaacArthur Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/ Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/cryptocurrency Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier Further Reading: Original Paper on bitcoin: Satoshi Nakamoto, "Bitcoin: A Peer-to-Peer Electronic Cash System" https://bitcoin.org/bitcoin.pdf Charles Stross Blog Entry "Why I want Bitcoin to die in a fire" http://www.antipope.org/charlie/blog-static/2013/12/why-i-want-bitcoin-to-die-in-a.html Daneil Jeffries rebuttal, "Why Charles Stross Doesn’t Know a Thing about Bitcoin": https://bitcoinmagazine.com/articles/charles-stross-doesnt-know-thing-bitcoin-1389147532 Abrahim Ladha’s “Hypothetical Problems concerning the Theory of Relativity on Cryptographic Currency Implementations”: https://arxiv.org/abs/1604.04265 Paul Krugman's paper "Theory of Interstellar Trade": https://www.princeton.edu/~pkrugman/interstellar.pdf
https://wn.com/Cryptocurrency_Blockchain
Blockchain - A short introduction
2:08

Blockchain - A short introduction

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  • Duration: 2:08
  • Updated: 29 Apr 2016
  • views: 185051
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What is the Blockchain? This 2 minute video explains it in a very easy way. As usual, please leave you questions and ideas in the comments. with love your MinuteVideos Team Video Script: Scene 1 Blockchain is a Peer to Peer software technology that protects the integrity of a digital piece of information. It was invented to create the alternative currency Bitcoin but may be used for other cryptocurrencies, online signature services, voting systems and many other applications. In this video we explain how it works and what makes it special. Scene 2 Everyone uses paper money. When you get a 10 dollar bill you trust that it's not fake. If instead someone sent you an email saying "here's 10 dollars" you probably wouldn’t trust it. But when we "transfer money", use an ATM or pay with a deposit card that's pretty much exactly what we do. We're sending money in a digital message. Scene 3 To make sure no one's cheating or sending money they don't have, these “messages” go through a few trusted banks that keep a record of everything. They know how much money everyone has and deduct it properly for every transaction. Scene 4 But this becomes expensive when there’s a million transactions around the world every minute. The Economist estimates that banks charged us more than 1.7 trillion dollars to process these payments in 2014. That’s about 2% of the entire world economy! With blockchain we can save a lot of this cost because it lets us send money just like sending an email. Scene 5 Instead of sending a lot of payment information through a few servers, blockchain uses thousands of personal computers on the internet. All transactions are copied and cross checked between every computer in a system wide accounting book called the ledger, which becomes very safe at scale. Scene 6 Blockchain doesn’t just allow us to create safe money online, it lets us protect any piece of digital information. This could be online Identity cards, voter ballots, contracts and many other “legal instruments”, bringing bureaucracy into the 21st century.
https://wn.com/Blockchain_A_Short_Introduction
Blockchain Technology Explained: What is a Blockchain?
4:01

Blockchain Technology Explained: What is a Blockchain?

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  • Duration: 4:01
  • Updated: 12 Mar 2017
  • views: 15092
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This video https://youtu.be/eXJHPDs4M3Y provides an easy to understand introduction to Blockchain Technology. Please leave comments and questions below the video. Here is the full transcript for your convenience: What is a Blockchain? A Blockchain is a distributed database that multiple parties share and everyone can trust. A Blockchain network provides a mutually trusted, transparent way of sharing and transacting. Each party participating in a Blockchain network maintains their own copy of the database. What makes Blockchain secure? Transactions on the database are atomic (this means that they're processed one at a time). The next transaction will be a different write or a read, but only after the preceding transaction has completed (or failed). Each write to the database is considered a ‘block’. Each new block contains a cryptographic hash (a unique fingerprint) of the previous block, creating a chain that can always be validated by checking the hashes back to the original root block. Before a block can be committed, all participants are required to validate the transaction and provide consensus that the block can be added to the chain. This effectively makes it impossible to add a record unless all parties participating in the blockchain agree the record is valid. Because all records are chained together by their hash value, once committed to the chain, all records are immutable (they cannot be changed). It is impossible to alter a previous record without altering every party’s copy of the chain. If one node is compromised, then it can no longer participate in the chain until it regenerates the true chain from the other participants. How does Blockchain prevent double spending? A major challenge of digitising assets is the potential to spend/redeem/use an asset multiple times. Because digital assets are much easier to forge than many traditional assets (such as currency, tickets, physical coupons, etc.), a secure system is required to ensure that an asset is only used once. With Blockchain, every time an asset is used or consumed, the owner of the asset signs the transfer with a private cryptographic key. This key is unique to the owner and is extremely difficult to forge. In order to initiate the transaction, the transferrer requires both the asset and their private key. The Blockchain will check both the validity of the key, and ownership of the asset. Therefore, even if the asset is cloned, it cannot be used without the private key. Once the transaction has been committed to the chain, the owner of the asset will have changed. This means, each node that receives a second transaction requesting transfer of ownership (or redemption, etc.) will see that there was a previous transaction that already transferred the asset and will reject that transaction. This prevents a second transfer block from being added to the chain. How does Blockchain ensure privacy? Personal data and identifiers are not required to be stored in the chain. Such data is stored as a hash value which provides both anonymity and security. The user may provide data such as their name, telephone number, email address, Facebook account id, unique user name, password etc. (in reality a combination of these values is used) to determine their identity. This data is hashed to provide a unique token that can only be recreated by providing the original values, and only this hash is stored to identify the party in the chain. Since it is impossible to obtain the input values by reverse engineering a hash value, the user is practically anonymous to all parties within the chain. But, they can be validated whenever required by providing the original values used to create the hash. How is PassKit utilising Blockchain? PassKit provides a private blockchain service to parties that wish to issue, record or redeem anything of value. This can be anything from loyalty points, punch card programmes, event tickets, boarding passes, to government identification, insurance policies or claim histories, tax records and educational transcripts. We utilise existing mobile wallet technology as a gateway for transacting, validating or querying our secure, private Blockchain networks. We ensure that mobile wallet content can be validated and trusted in a frictionless, realtime manner, by both consumers and by the businesses and institutions with whom they transact.
https://wn.com/Blockchain_Technology_Explained_What_Is_A_Blockchain
Blockchain Simplified: Centralized Systems vs Distributed Systems - The Basics - E01
3:45

Blockchain Simplified: Centralized Systems vs Distributed Systems - The Basics - E01

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  • Duration: 3:45
  • Updated: 25 Jun 2017
  • views: 823
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The term 'blockchain' has been increasingly thrown around due to a rise in cryptocurrency popularity. Here is a speedy explanation of what it is and how it works. The below terms may be useful before watching the video: Encryption: - The process of converting information or data into a code, mainly to prevent unauthorized access. Hash Code: - A hash function is any function that can be used to map data of arbitrary size to data of fixed size. The values returned by a hash function are called hash values, hash codes, digests, or simply hashes. Centralized System: - A system where decisions for the system goal are made in a central mechanism and transmitted to executive components. Distributed System: - A distributed system consists of a collection of autonomous computers, connected through a network and distribution middleware, which enables computers to coordinate their activities and to share the resources of the system, so that users perceive the system as a single, integrated computing facility. Facebook: https://www.facebook.com/theblockchainguys/ Twitter: https://twitter.com/BlockchainGuys Instagram: https://www.instagram.com/theblockchainguys/ Reddit: https://www.reddit.com/user/theblockchainguys/ Get in touch: info@theblockchainguys.com theblockchainguys@gmail.com Don't forget to Like, Share & Subscribe for more.
https://wn.com/Blockchain_Simplified_Centralized_Systems_Vs_Distributed_Systems_The_Basics_E01
Blockchain: Massively Simplified | Richie Etwaru | TEDxMorristown
22:55

Blockchain: Massively Simplified | Richie Etwaru | TEDxMorristown

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  • Duration: 22:55
  • Updated: 15 May 2017
  • views: 992200
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Richie Etwaru, discusses the opportunity and implications of blockchain as a paradigm to slow/chose the expanding trust gap in commerce. He unpacks blockchain to a level of simplicity to be consumed by those that are just starting to understand and explore the paradigm. He lays out a current state of commerce, suggesting that every company is currently at risk of being disrupted or incurring severe strain from a blockchain version of itself. Professionally, Richie Etwaru is a c-level at a Fortune 500 Company, an author, the owner of international patents, the founder of multiple ventures, an experienced keynote speaker, an angel investor, a member of advisory boards, and a recognized thought leader in the area of digital, technology, and design. Specific to this TEDx talk, Richie is an adjunct professor of blockchain management at Syracuse University in New York, he has delivered over 100 blockchain keynotes across the world, he has written well read blockchain blogs, he has been interviewed on blockchain in online TV shows, and has advised governments and venture funds on blockchain opportunities. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
https://wn.com/Blockchain_Massively_Simplified_|_Richie_Etwaru_|_Tedxmorristown
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