• Data Driven #5: Blockchain and Big Data

    What is a blockchain, and how does it relate to big data? Find out in episode 5 of the Data Driven series. Check out this playlist for more Data Driven videos about big data topics: http://bit.ly/sfdatadriven More information about the Syncfusion Big Data Platform: http://bit.ly/bigdataplatform16

    published: 20 Dec 2016
  • Opening supply chain data on the blockchain: Jessi Baker - ODI Summit 2015

    Jessi Baker (Provenance) argues that blockchain technology could be key in the opening up of supply chain data. ____________________ Get involved For more information on how you can learn more about open data and how it can benefit you, your business and the world, visit http://theodi.org. ____________________ ODI Summit This video was taken at the ODI Summit, where over 700 people from around the world joined the Open Data Institute (ODI) at the BFI to celebrate Generation Open. As part of the ODI Summit we heard from inspirational and diverse keynote speakers, including Sir Tim Berners-Lee, Martha Lane Fox, Sir Nigel Shadbolt and many more. ____________________ Find us online: ODI videos: bit.ly/odi_vimeo ODI photos: bit.ly/odi_flickr ODI audio: bit.ly/odi_soundcloud ODI slides: b...

    published: 16 Dec 2015
  • Factom - Big Data on the Bitcoin Blockchain - BnkToTheFuture Case Study

    http://bit.ly/1AJOQiZ Ever wondered what it would be like if you couldn’t prove your home, or even the land it’s built on, was actually yours? Ever pondered what happens to your data when you share it online, with your bank or with your government? At Bank to the future we believe that important records and data should be in your control, secure from hackers and stored in a way it cannot be tampered with. Well, you’ll be glad to know that these problems will soon become history. Factom developed technology to tackle these issues and chose to raise part of their funding on our Online Investment Platform - BankToTheFuture.com Unlike many companies, Factom believes that data should never be stored with one organisation. It is simply too attractive a target for hackers. Unlike banks,...

    published: 15 Apr 2016
  • "Blockchain & Big Data", Trent MConaghy, Founder & CTO at ascribe GmbH

    "Blockchain & Big Data", Trent MConaghy, Founder & CTO at ascribe GmbH Watch more from Data Natives 2015 here: http://bit.ly/1OVkK2J Visit the conference website to learn more: www.datanatives.io Follow Data Natives: https://www.facebook.com/DataNatives https://twitter.com/DataNativesConf Stay Connected to Data Natives by Email: Subscribe to our newsletter to get the news first about Data Natives 2016: http://bit.ly/1WMJAqS Presentation Slides: https://www.slideshare.net/secret/8gK4MtBHS8AJyU About the author: Trent McConaghy is co-founder & CTO of ascribe, which uses blockchain technology and internet-scale machine learning to secure digital creations. Before that, he co-founded Solido Design Automation, which uses large-scale machine learning to help drive Moore's Law. Solido is no...

    published: 18 Jan 2016
  • Mnar Muhawesh: Could Technology Behind Bitcoin [Blockchain] Revolutionize Data Privacy?

    Can bitcoin change how we communicate and share data online? In this episode of “Behind The Headline,” Jameson Lopp, a software developer at BitGo, tells host Mnar Muhawesh about the promise and potential of the blockchain, a key technology behind the digital currency that creates a new form of trust and security through a publicly shared ledger of transactions. As governments ramp up surveillance, blockchains can help us take back our privacy.

    published: 17 May 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
  • 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
  • Microsoft on Blockchain technology and Bitcoin (openname)

    In the past years cryptocurrency blockchains (like Bitcoin and Namecoin) have seen significant adoption with the promise of using such blockchains as general-purpose databases and/or key-value stores. Cryptocurrency blockchains provide a zero-trust infrastructure, where users can securely store and retrieve information while providing security guarantees that only the owner of a particular private-key can write/modify the data. In theory, many decentralized services/application can be built using cryptocurrency blockchains as key-value stores. However, the area is relatively new and rapidly evolving with little production experience/data available to guide design tradeoffs. In this talk, we describe our experience of operating a large real-world deployment of a decentralized naming service...

    published: 07 Jun 2015
  • Bitcoin - Transaction block chains

    The mechanics of a bitcoin transaction block chain, which is a construct that is generated by bitcoin miners and functions as a global ledger for recording and validating bitcoins. More free lessons at: http://www.khanacademy.org/video?v=QzDO44oZWtE Video by Zulfikar Ramzan. Zulfikar Ramzan is a world-leading expert in computer security and cryptography and is currently the Chief Scientist at Sourcefire. He received his Ph.D. in computer science from MIT.

    published: 02 May 2013
  • The Future of Insurance : Blockchain, IoT and Big Data

    Presentation by Ugur Ozdemir of how "The Future of Insurance" will see out from the perspective of three disruptive innovations Blockchain, IoT and Big Data.

    published: 19 Jun 2016
  • EB107 – Gideon Greenspan: The Blockchain Is A New Database Paradigm

    Support the show, consider donating: 19DWzVMsCGzXjXT5xojjYdTeepSueBD2Mq (http://bit.ly/1jnTqRh) Gideon Greenspan, a computer scientist and CEO/Founder of the Israeli startup Coin Sciences, joined us for a discussion of their private blockchain platform MultiChain. Besides diving into the popular question of what's the point of a private blockchain, we covered his earlier colored coins implementation as well as his view that blockchains are best understood as a novel database paradigm. Topics covered included: - How Gideon got involved in the blockchain space - Their colored coins implementation MultiSpark and why it failed to get traction - Why he saw a market for an open-source private blockchain platform and started MultiChain - What mining diversity is and how it is used for consensus...

    published: 30 Nov 2015
  • BLOCKCHAIN FOR DUMMIES

    A Blockchain is a distributed database that maintains a continuously-growing list of records called blocks secured from tampering and revision. Blockchain tech is actually a way to structure data and it has so many disruptive applications. The blockchain allows competitors to share a digital distributed ledger across a network of computers without need for a central authority. Its decentralized. No single party has the power to tamper with the records: the math keeps everyone honest. Decentralization is achieved by automatically saving a copy of the entire register (i.e. the blockchain) on the computer of each network member upon accession and when any change is made. The blockchain derives its name from the chain formed by a succession of blocks of transactions.

    published: 28 Sep 2016
  • Hawk: The Blockchain Model of Cryptography and Privacy-Preserving Smart Contracts

    Hawk: The Blockchain Model of Cryptography and Privacy-Preserving Smart Contracts Andrew Miller (University of Maryland) Presented at the 2016 IEEE Symposium on Security & Privacy May 23–25, 2016 San Jose, CA http://www.ieee-security.org/TC/SP2016/ ABSTRACT Emerging smart contract systems over decentralized cryptocurrencies allow mutually distrustful parties to transact safely without trusted third parties. In the event of contractual breaches or aborts, the decentralized blockchain ensures that honest parties obtain commensurate compensation. Existing systems, however, lack transactional privacy. All transactions, including flow of money between pseudonyms and amount transacted, are exposed on the blockchain. We present Hawk, a decentralized smart contract system that does ...

    published: 02 Sep 2016
  • Apertus 0.3 Storing encrypted data on a blockchain

    Browse through the latest blockchain etchings at http://bitfossil.com/recent.aspx Download the latest Apertus client at http://Apertus.io In this demonstration we are using Apertus and the Vault feature to store an encrypted message on the bitcoin testnet and then later retrieving it.

    published: 08 Mar 2016
  • Blockchain for Healthcare - Jacob Boersma & Lucien Engelen at Our Future Health 2016

    Check out the science behind this talk at: https://api.iris.ai/shared/6803/

    published: 01 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
Data Driven #5: Blockchain and Big Data

Data Driven #5: Blockchain and Big Data

  • Order:
  • Duration: 3:42
  • Updated: 20 Dec 2016
  • views: 884
videos
What is a blockchain, and how does it relate to big data? Find out in episode 5 of the Data Driven series. Check out this playlist for more Data Driven videos about big data topics: http://bit.ly/sfdatadriven More information about the Syncfusion Big Data Platform: http://bit.ly/bigdataplatform16
https://wn.com/Data_Driven_5_Blockchain_And_Big_Data
Opening supply chain data on the blockchain: Jessi Baker - ODI Summit 2015

Opening supply chain data on the blockchain: Jessi Baker - ODI Summit 2015

  • Order:
  • Duration: 7:02
  • Updated: 16 Dec 2015
  • views: 1056
videos
Jessi Baker (Provenance) argues that blockchain technology could be key in the opening up of supply chain data. ____________________ Get involved For more information on how you can learn more about open data and how it can benefit you, your business and the world, visit http://theodi.org. ____________________ ODI Summit This video was taken at the ODI Summit, where over 700 people from around the world joined the Open Data Institute (ODI) at the BFI to celebrate Generation Open. As part of the ODI Summit we heard from inspirational and diverse keynote speakers, including Sir Tim Berners-Lee, Martha Lane Fox, Sir Nigel Shadbolt and many more. ____________________ Find us online: ODI videos: bit.ly/odi_vimeo ODI photos: bit.ly/odi_flickr ODI audio: bit.ly/odi_soundcloud ODI slides: bit.ly/odi_scribd ODI tweets: bit.ly/odi_tweet ODI blog: theodi.org/blog Our website: http://www.theodi.org
https://wn.com/Opening_Supply_Chain_Data_On_The_Blockchain_Jessi_Baker_Odi_Summit_2015
Factom - Big Data on the Bitcoin Blockchain - BnkToTheFuture Case Study

Factom - Big Data on the Bitcoin Blockchain - BnkToTheFuture Case Study

  • Order:
  • Duration: 4:37
  • Updated: 15 Apr 2016
  • views: 1430
videos
http://bit.ly/1AJOQiZ Ever wondered what it would be like if you couldn’t prove your home, or even the land it’s built on, was actually yours? Ever pondered what happens to your data when you share it online, with your bank or with your government? At Bank to the future we believe that important records and data should be in your control, secure from hackers and stored in a way it cannot be tampered with. Well, you’ll be glad to know that these problems will soon become history. Factom developed technology to tackle these issues and chose to raise part of their funding on our Online Investment Platform - BankToTheFuture.com Unlike many companies, Factom believes that data should never be stored with one organisation. It is simply too attractive a target for hackers. Unlike banks, Factom believes that customers should only share their important information as and when it is needed. Unlike governments, Factom believes that important records should be stored in a tamper proof way, transparently and impossible to be altered. ...and we agree. BnkToTheFuture.com is the largest Online Investment Platform with thousands of professional investors waiting to invest in Financial and Technological innovation. Go to our homepage and you’ll get to see the total number of professional investors, how much they have invested, and the amount of dividends that they’ve received. Factom was a perfect match for us. They had built technology that stored huge data on the Bitcoin Blockchain secure from hackers, scalable and in a way that can never be tampered. They had already funded the development of the not-for-profit side of their technology by issuing their own CryptoCurrency, but were now ready to fund the for-profit side of their business. They secured a partnership with MicroSoft, a contract to build smart Cities in China and an initial agreement to build a proof-of-concept product to store land title deeds for a government. They wanted funding from professional investors who believed in them and knew the value of their business. and they wanted the investment to come through fast, in different currencies and with a streamlined compliance and documentation process. A solution was found, and Factom decided to list on Bank To The Future. We gave Factom access to a global community of thousands of qualifying investors ready to invest in Financial and Technological innovation. We gave them a platform that complies with international financial regulations tailored for most major currencies and countries. We structured the investment in a way that meant they only get one registered investor. We cut out the painful admin, legal costs and problems raising further finance in the future, as compliance and documentation was completed by us in an optimised investment structure. And all under a “no win, no fee” agreement with no up-front costs. We provided all our investors with one investment agreement and a forum to communicate with the team quickly, efficiently and privately with additional investor protections. Investors can download all legal work, due diligence and certificates via our platform whenever they want. We also invested in Factom through one of our Venture Capital funds - Bitcoin Capital, meaning, investors got to co-invest with us on the same terms and our interests are aligned. If Factom floats on a stock market, is acquired in the future or pays investors dividends, investors get their returns minus our 5% fee. We built our Online Investment Platform with one purpose in mind - to prepare for a radically different future in Financial and Technological Innovation... Businesses just like Factom can raise finance in a safe, fast and effective way, while our investors get to allocate a portion of their wealth to an extremely disruptive and fast growing area that many are beginning to see could change the world of finance - FOREVER! Just like Factom, you can get involved by making a quick online application for finance at BankToTheFuture.com or register to see if you qualify to invest. http://bit.ly/1AJOQiZ
https://wn.com/Factom_Big_Data_On_The_Bitcoin_Blockchain_Bnktothefuture_Case_Study
"Blockchain & Big Data", Trent MConaghy, Founder & CTO at ascribe GmbH

"Blockchain & Big Data", Trent MConaghy, Founder & CTO at ascribe GmbH

  • Order:
  • Duration: 21:04
  • Updated: 18 Jan 2016
  • views: 279
videos
"Blockchain & Big Data", Trent MConaghy, Founder & CTO at ascribe GmbH Watch more from Data Natives 2015 here: http://bit.ly/1OVkK2J Visit the conference website to learn more: www.datanatives.io Follow Data Natives: https://www.facebook.com/DataNatives https://twitter.com/DataNativesConf Stay Connected to Data Natives by Email: Subscribe to our newsletter to get the news first about Data Natives 2016: http://bit.ly/1WMJAqS Presentation Slides: https://www.slideshare.net/secret/8gK4MtBHS8AJyU About the author: Trent McConaghy is co-founder & CTO of ascribe, which uses blockchain technology and internet-scale machine learning to secure digital creations. Before that, he co-founded Solido Design Automation, which uses large-scale machine learning to help drive Moore's Law. Solido is now widely used in developing next-gen computer chips. Before that, he co-founded ADA, which used machine learning for analog synthesis. ADA was acquired in 2004. Trent has written two critically-acclaimed books on machine learning, creativity and circuit design, in addition to 50 papers+patents. He has given keynotes & invited talks at MIT, Columbia, Berkeley, JPL, Samsung, Qualcomm, Nvidia, Data Science Day, PyData, and more.
https://wn.com/Blockchain_Big_Data_,_Trent_Mconaghy,_Founder_Cto_At_Ascribe_Gmbh
Mnar Muhawesh: Could Technology Behind Bitcoin [Blockchain] Revolutionize Data Privacy?

Mnar Muhawesh: Could Technology Behind Bitcoin [Blockchain] Revolutionize Data Privacy?

  • Order:
  • Duration: 12:30
  • Updated: 17 May 2016
  • views: 605
videos
Can bitcoin change how we communicate and share data online? In this episode of “Behind The Headline,” Jameson Lopp, a software developer at BitGo, tells host Mnar Muhawesh about the promise and potential of the blockchain, a key technology behind the digital currency that creates a new form of trust and security through a publicly shared ledger of transactions. As governments ramp up surveillance, blockchains can help us take back our privacy.
https://wn.com/Mnar_Muhawesh_Could_Technology_Behind_Bitcoin_Blockchain_Revolutionize_Data_Privacy
Blockchain Basics Explained - Hashes with Mining and Merkle trees

Blockchain Basics Explained - Hashes with Mining and Merkle trees

  • Order:
  • Duration: 3:24
  • Updated: 07 Feb 2016
  • views: 18270
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
Blockchain Technology Explained: What is a Blockchain?

Blockchain Technology Explained: What is a Blockchain?

  • Order:
  • Duration: 4:01
  • Updated: 12 Mar 2017
  • views: 63
videos
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
Microsoft on Blockchain technology and Bitcoin (openname)

Microsoft on Blockchain technology and Bitcoin (openname)

  • Order:
  • Duration: 1:19:30
  • Updated: 07 Jun 2015
  • views: 592
videos
In the past years cryptocurrency blockchains (like Bitcoin and Namecoin) have seen significant adoption with the promise of using such blockchains as general-purpose databases and/or key-value stores. Cryptocurrency blockchains provide a zero-trust infrastructure, where users can securely store and retrieve information while providing security guarantees that only the owner of a particular private-key can write/modify the data. In theory, many decentralized services/application can be built using cryptocurrency blockchains as key-value stores. However, the area is relatively new and rapidly evolving with little production experience/data available to guide design tradeoffs. In this talk, we describe our experience of operating a large real-world deployment of a decentralized naming service, called Openname, built on top of a cryptocurrency blockchain (Namecoin). We present the various challenges that we had to overcome while registering/updating over 30,000 users on the blockchain and discuss how our experience informed the design of a new blockchain-based key-value store, called Blockstore. All of our code is available as open-source at http://github.com/openname.
https://wn.com/Microsoft_On_Blockchain_Technology_And_Bitcoin_(Openname)
Bitcoin - Transaction block chains

Bitcoin - Transaction block chains

  • Order:
  • Duration: 11:25
  • Updated: 02 May 2013
  • views: 119046
videos
The mechanics of a bitcoin transaction block chain, which is a construct that is generated by bitcoin miners and functions as a global ledger for recording and validating bitcoins. More free lessons at: http://www.khanacademy.org/video?v=QzDO44oZWtE Video by Zulfikar Ramzan. Zulfikar Ramzan is a world-leading expert in computer security and cryptography and is currently the Chief Scientist at Sourcefire. He received his Ph.D. in computer science from MIT.
https://wn.com/Bitcoin_Transaction_Block_Chains
The Future of Insurance : Blockchain, IoT and Big Data

The Future of Insurance : Blockchain, IoT and Big Data

  • Order:
  • Duration: 41:52
  • Updated: 19 Jun 2016
  • views: 3346
videos
Presentation by Ugur Ozdemir of how "The Future of Insurance" will see out from the perspective of three disruptive innovations Blockchain, IoT and Big Data.
https://wn.com/The_Future_Of_Insurance_Blockchain,_Iot_And_Big_Data
EB107 – Gideon Greenspan: The Blockchain Is A New Database Paradigm

EB107 – Gideon Greenspan: The Blockchain Is A New Database Paradigm

  • Order:
  • Duration: 1:03:03
  • Updated: 30 Nov 2015
  • views: 1551
videos
Support the show, consider donating: 19DWzVMsCGzXjXT5xojjYdTeepSueBD2Mq (http://bit.ly/1jnTqRh) Gideon Greenspan, a computer scientist and CEO/Founder of the Israeli startup Coin Sciences, joined us for a discussion of their private blockchain platform MultiChain. Besides diving into the popular question of what's the point of a private blockchain, we covered his earlier colored coins implementation as well as his view that blockchains are best understood as a novel database paradigm. Topics covered included: - How Gideon got involved in the blockchain space - Their colored coins implementation MultiSpark and why it failed to get traction - Why he saw a market for an open-source private blockchain platform and started MultiChain - What mining diversity is and how it is used for consensus in MultiChain - How permissions work in MultiChain - The issues of privacy in blockchains and why you can't have auditability and privacy - How private blockchains differ from regular distributed databases - The five criteria to decide if a project needs a blockchain - The problem he sees with smart contract blockchains Links mentioned in this episode: - Multichain website http://bit.ly/1HAp61D - Multichain Whitepaper http://bit.ly/1MZE12a - Colored coin protocol CoinSpark http://bit.ly/1lqg390 - Avoiding the pointless blockchain project: http://bit.ly/1SsbOEP - Private blockchains are more than 'just' shared databases http://bit.ly/1ToiODm - Smart contracts: The good, the bad and the lazy http://bit.ly/1SsbTII Sponsors: - Ledger Nano: Smart card security for your Bitcoins - Get 10% off your first order when you use the code EB09 at http://ledgerwallet.com (valid until 09/30/15) - Vaultoro: Trade gold to Bitcoin instantly and securely starting at just 1mg at http://vaultoro.com - Hide.me: Protect your privacy and personal data with a free VPN account at Hide.me/epicenter Show notes: http://epicenterbitcoin.com/podcast/107 SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-107 Epicenter Bitcoin is hosted by Brian Fabian Crain, Sébastien Couture & Meher Roy. - Visit our website: http://epicenterbitcoin.com - Subscribe to our newsletter: http://epicenterbitcoin.com/newsletter - Twitter: http://twitter.com/epicenterbtc
https://wn.com/Eb107_–_Gideon_Greenspan_The_Blockchain_Is_A_New_Database_Paradigm
BLOCKCHAIN FOR DUMMIES

BLOCKCHAIN FOR DUMMIES

  • Order:
  • Duration: 1:45
  • Updated: 28 Sep 2016
  • views: 906
videos
A Blockchain is a distributed database that maintains a continuously-growing list of records called blocks secured from tampering and revision. Blockchain tech is actually a way to structure data and it has so many disruptive applications. The blockchain allows competitors to share a digital distributed ledger across a network of computers without need for a central authority. Its decentralized. No single party has the power to tamper with the records: the math keeps everyone honest. Decentralization is achieved by automatically saving a copy of the entire register (i.e. the blockchain) on the computer of each network member upon accession and when any change is made. The blockchain derives its name from the chain formed by a succession of blocks of transactions.
https://wn.com/Blockchain_For_Dummies
Hawk: The Blockchain Model of Cryptography and Privacy-Preserving Smart Contracts

Hawk: The Blockchain Model of Cryptography and Privacy-Preserving Smart Contracts

  • Order:
  • Duration: 17:21
  • Updated: 02 Sep 2016
  • views: 901
videos
Hawk: The Blockchain Model of Cryptography and Privacy-Preserving Smart Contracts Andrew Miller (University of Maryland) Presented at the 2016 IEEE Symposium on Security & Privacy May 23–25, 2016 San Jose, CA http://www.ieee-security.org/TC/SP2016/ ABSTRACT Emerging smart contract systems over decentralized cryptocurrencies allow mutually distrustful parties to transact safely without trusted third parties. In the event of contractual breaches or aborts, the decentralized blockchain ensures that honest parties obtain commensurate compensation. Existing systems, however, lack transactional privacy. All transactions, including flow of money between pseudonyms and amount transacted, are exposed on the blockchain. We present Hawk, a decentralized smart contract system that does not store financial transactions in the clear on the blockchain, thus retaining transactional privacy from the public's view. A Hawk programmer can write a private smart contract in an intuitive manner without having to implement cryptography, and our compiler automatically generates an efficient cryptographic protocol where contractual parties interact with the blockchain, using cryptographic primitives such as zero-knowledge proofs. To formally define and reason about the security of our protocols, we are the first to formalize the blockchain model of cryptography. The formal modeling is of independent interest. We advocate the community to adopt such a formal model when designing applications atop decentralized blockchains.
https://wn.com/Hawk_The_Blockchain_Model_Of_Cryptography_And_Privacy_Preserving_Smart_Contracts
Apertus 0.3 Storing encrypted data on a blockchain

Apertus 0.3 Storing encrypted data on a blockchain

  • Order:
  • Duration: 3:08
  • Updated: 08 Mar 2016
  • views: 116
videos
Browse through the latest blockchain etchings at http://bitfossil.com/recent.aspx Download the latest Apertus client at http://Apertus.io In this demonstration we are using Apertus and the Vault feature to store an encrypted message on the bitcoin testnet and then later retrieving it.
https://wn.com/Apertus_0.3_Storing_Encrypted_Data_On_A_Blockchain
Blockchain for Healthcare - Jacob Boersma & Lucien Engelen at Our Future Health 2016

Blockchain for Healthcare - Jacob Boersma & Lucien Engelen at Our Future Health 2016

  • Order:
  • Duration: 10:55
  • Updated: 01 Jun 2016
  • views: 2159
videos
Check out the science behind this talk at: https://api.iris.ai/shared/6803/
https://wn.com/Blockchain_For_Healthcare_Jacob_Boersma_Lucien_Engelen_At_Our_Future_Health_2016
How the blockchain is changing money and business | Don Tapscott

How the blockchain is changing money and business | Don Tapscott

  • Order:
  • Duration: 18:50
  • Updated: 16 Sep 2016
  • views: 138621
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
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