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Build Your Own Distributed Database With Go
 
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Have you ever wanted to make a custom database? In this talk we will deep dive into how distributed databases and Blockchains make consensus. We will review how Raft and Paxos compare to Byzantine fault-tolerant systems in Blockchains such as Ethereum. You will learn how to build your own Database EVENT: GopherConSG 2018 SPEAKER: Matthew Campbell PERMISSIONS: Original video was published with the Creative Commons Attribution license (reuse allowed). CREDITS: Original video source: https://www.youtube.com/watch?v=k0-WyZCKF5I
Views: 14393 Coding Tech
Trent McConaghy  - BigchainDB : a Scalable Blockchain Database, in Python
 
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PyData Berlin 2016 This talk describes BigchainDB. BigchainDB fills a gap in the decentralization ecosystem: a decentralized database, at scale. It has big-data performance levels, a querying system, and a permissioning system that supports public and private versions. It's complementary to decentralized processing platforms like Ethereum, and decentralized file systems like IPFS. BigchainDB is written in Python. This talk describes BigchainDB. BigchainDB fills a gap in the decentralization ecosystem: a decentralized database, at scale. It points to performance of 1 million writes per second throughput, storing petabytes of data, and sub-second latency. The BigchainDB design starts with a distributed database (DB), and through a set of innovations adds blockchain characteristics: decentralized control, immutability, and creation & movement of digital assets. BigchainDB inherits characteristics of modern distributed databases: linear scaling in throughput and capacity with the number of nodes, a full-featured NoSQL query language, efficient querying, and permissioning. Being built on an existing distributed DB, it also inherits enterprise-hardened code for most of its codebase. Scalable capacity means that legally binding con- tracts and certificates may be stored directly on the blockchain database. The permissioning system enables configurations ranging from private enterprise blockchain databases to open, public blockchain databases. BigchainDB is complementary to decentralized processing platforms like Ethereum, and decentralized file systems like InterPlanetary File System (IPFS). This talk describes technology perspectives that led to the BigchainDB design: traditional blockchains, distributed databases, and a case study of the domain name system (DNS). We introduce a concept called blockchain pipelining, which is key to scalability when adding blockchainlike characteristics to the distributed DB. We present a thorough description of BigchainDB, a detailed analysis of latency, and experimental results. The talk concludes with a description of use cases. Slides: https://github.com/bigchaindb/bigchaindb
Views: 11596 PyData
Distributed Applications
 
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Take the full course: https://systemsacademy.io/courses/blockchain-introduction/ https://twitter.com/systemsacademy A Dapp is an application that runs on a network in a distributed fashion with participant information securely protected and operations executed in a decentralized fashion across a network of nodes. Dapps use open source code, operate autonomously with data and records cryptographically stored on a blockchain
Views: 3922 Systems Academy
New Era in Distributed Computing with Blockchains and Databases
 
01:15:46
A new era is emerging in the world of distributed computing with the growing popularity of blockchains (shared, replicated and distributed ledgers) and the associated databases as a way of integrating inter-organizational work. Originally, the concept of a distributed ledger was invented as the underlying technology of the cryptocurrency Bitcoin. But the adoption and further adaptation of it for use in the commercial or permissioned environments is what is of utmost interest to me and hence will be the focus of this keynote. Computer companies like IBM and Microsoft, and many key players in different vertical industry segments have recognized the applicability of blockchains in environments other than cryptocurrencies. IBM did some pioneering work by architecting and implementing Fabric, and then open sourcing it. Now Fabric is being enhanced via the Hyperledger Consortium as part of The Linux Foundation. A few of the other efforts include Enterprise Ethereum, R3 Corda and BigchainDB. While there is no standard in the blockchain space currently, all the ongoing efforts involve some combination of database, transaction, encryption, consensus and other distributed systems technologies. Some of the application areas in which blockchain pilots are being carried out are: smart contracts, supply chain management, know your customer, derivatives processing and provenance management. In this talk, I will survey some of the ongoing blockchain projects with respect to their architectures in general and their approaches to some specific technical areas. I will focus on how the functionality of traditional and modern data stores are being utilized or not utilized in the different blockchain projects. I will also distinguish how traditional distributed database management systems have handled replication and how blockchain systems do it. Since most of the blockchain efforts are still in a nascent state, the time is right for database and other distributed systems researchers and practitioners to get more deeply involved to focus on the numerous open problems. Speaker Bio Dr. C. Mohan has been an IBM researcher for 35 years in the database area, impacting numerous IBM and non-IBM products, the research and academic communities, and standards, especially with his invention of the ARIES family of database locking and recovery algorithms, and the Presumed Abort commit protocol. This IBM (1997), and ACM/IEEE (2002) Fellow has also served as the IBM India Chief Scientist for 3 years (2006-2009). In addition to receiving the ACM SIGMOD Innovation Award (1996), the VLDB 10 Year Best Paper Award (1999) and numerous IBM awards, Mohan was elected to the US and Indian National Academies of Engineering (2009), and was named an IBM Master Inventor (1997). This Distinguished Alumnus of IIT Madras (1977) received his PhD at the University of Texas at Austin (1981). He is an inventor of 50 patents. He is currently focused on Blockchain, Big Data and HTAP technologies (http://bit.ly/CMbcDB, http://bit.ly/CMgMDS). Since 2016, he has been a Distinguished Visiting Professor of China’s prestigious Tsinghua University. He has served on the advisory board of IEEE Spectrum, and on numerous conference and journal boards. Mohan is a frequent speaker in North America, Europe and India, and has given talks in 40 countries. He is very active on social media and has a huge network of followers. More information could be found in the Wikipedia page at http://bit.ly/CMwIkP
Centralised vs Distributed Databases
 
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A look at the advantages and disadvantages of whether having one centralised database file or having multiple database files on a network scenarios.
Views: 29183 Christopher Kalodikis
Centralised vs Decentralised vs Distributed Systems [Blockchain & Cryptocurrency]
 
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Full Course On Udemy Discounted Coupon 95% OFF - https://www.udemy.com/bitcoin-ethereum-blockchain/?couponCode=YOUTUBE Like our content and want to support us more directly? Help Us, Help You! https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=6DF2Q8TR5FB3E Udemy Coupons "Here are coupons for all of my udemy courses: -Three.js [50% OFF] - https://www.udemy.com/threejs-programming/?couponCode=10ONLY -Flappy Bird SFML Clone [50% OFF] - https://www.udemy.com/flappy-bird-sfml/?couponCode=50-OFF -HTML [50% OFF] - https://www.udemy.com/html-tutorials/?couponCode=50_P_OFF -CSS [50% OFF] - https://www.udemy.com/css-course/?couponCode=CSS50POFF -Tic-Tac-Toe Cocos2d-x [50% OFF] - https://www.udemy.com/tic-tac-toe-cocos2d-x-cpp/?couponCode=TTTCC2D-50OFF -Tic-Tac-Toe SFML [50% OFF] - https://www.udemy.com/tic-tac-toe-sfml/?couponCode=SFMLTTT-50OFF -Cocos2d-x Game Development [90% OFF] - https://www.udemy.com/cocos2d-x-v3-cpp/?couponCode=90-PERCENT-OFF -A-Frame WebVR (Virtual Reality) [75% OFF] - https://www.udemy.com/a-frame-webvr/?couponCode=75_PERCENT_OFF -Modern OpenGL [80% OFF] - https://www.udemy.com/opengl-tutorials/?couponCode=10GLCODE -Bootstrap 4 [80% OFF] - https://www.udemy.com/bootstrap-web/?couponCode=80-OFF -C++ Programming [90% OFF] - https://www.udemy.com/cpp-course/?couponCode=BIG_SAVING_CPP -Ionic AngularJS [75% OFF] - https://www.udemy.com/ionic-course/?couponCode=75_OFF -Swift Programming [87.5% OFF] - https://www.udemy.com/swift-ios-mac/?couponCode=DISCOUNT_10 For all new courses feel free to ask for a coupon, enjoy. If you like this stuff, as always, show the love through comments, likes, favorites, subscriptions, etc. Thousands of free videos at www.sonarlearning.co.uk If you have any questions feel free to post them at http://www.sonarlearning.co.uk/questions.php Our Website http://www.sonarsystems.co.uk/ Facebook - https://www.facebook.com/pages/Sonar-Systems/581403125243822 Twitter - https://twitter.com/SonarSystems Google+ - https://plus.google.com/+SonarsystemsCoUk/ Donate - https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=6DF2Q8TR5FB3E Our games made using Cocos2d-x ------------------------------------------------------ iOS: https://itunes.apple.com/us/artist/sonar-systems/id672545941 Google Play: https://play.google.com/store/apps/developer?id=Sonar+Systems Check out our Cocos2d-x book to learn how to make games https://www.packtpub.com/game-development/cocos2d-x-game-development-essentials
Views: 3827 Sonar Systems
Blockchain tutorial 23: Ledger
 
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This is part 23 of the Blockchain tutorial explaining what a ledger is. This tutorial explains the differences between: - a centralised and a distributed ledger - a public ledger (permissionless ledger) and a private ledger (permissioned ledger) 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: 11055 Mobilefish.com
Build your own distributed database - GopherConSG 2018
 
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Speaker: Matthew Campbell Have you ever wanted to make a custom database? In this talk we will deep dive into how distributed databases and Blockchains make consensus. We will review how Raft and Paxos compare to Byzantine fault-tolerant systems in Blockchains such as Ethereum. You will learn how to build your own Database Produced by Engineers.SG
Views: 2009 Singapore Gophers
Distributed Database
 
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Views: 3341 Devin Shannon
الحلقة الثانية :  قواعد البيانات والبلوك تشين  Centralized DB vs Distributed DB VS BlockChain
 
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الحلقة الثانية : الفرق بين قواعد البيانات التقليدية والبلوك تشين بالعربى Centralized DB vs Distributed DB VS BlockChain ( Arabic Video) الحلقات السابقة :- الحلقة الاولى : اية هو البلوك تشين ? What is the Blockchain In Arabic سلسلة حلقات تعرفية عن تكنلوجيا لبلوك تشين والعملات الرقمية واهميتها https://www.youtube.com/watch?v=RbTLSzACuTE اوعي تنسي تشترك في القناة :) http://itshareacademy.com
The future will be decentralized | Charles Hoskinson | TEDxBermuda
 
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This talk was given at a local TEDx event, produced independently of the TED Conferences. Tech entrepreneur and mathematician Charles Hoskinson says Bitcoin-related technology is about to revolutionise property rights, banking, remote education, private law and crowd-funding for the developing world. Charles Hoskinson is Chief Executive Officer at Thanatos Holdings, Director at The Bitcoin Education Project, and President at the Hoskinson Content Group LLC. Charles is a Colorado based technology entrepreneur and mathematician. He attended University of Colorado, Boulder to study analytic number theory in graduate school before moving into cryptography and social network theory. His professional experience includes work with NoSQL and Bigdata using MongoDB and Hadoop for several data mining projects involving crowdsource research and also development of web spiders. He is the author of several white papers on the design and deployment of low bandwidth prolog based semantical web scraping bots as well as analysis of metamorphic computer viruses through a case study on Zmist. His current projects focus on evangelism and education for Bitcoin and fully homomorphic encryption schemes. About TEDx, x = independently organized event In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)
Views: 311860 TEDx Talks
What is DISTRIBUTED DATABASE? What does DISTRIBUTED DATABASE mean? DISTRIBUTED DATABASE meaning
 
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✪✪✪✪✪ WORK FROM HOME! Looking for WORKERS for simple Internet data entry JOBS. $15-20 per hour. SIGN UP here - http://jobs.theaudiopedia.com ✪✪✪✪✪ ✪✪✪✪✪ The Audiopedia Android application, INSTALL NOW - https://play.google.com/store/apps/details?id=com.wTheAudiopedia_8069473 ✪✪✪✪✪ What is DISTRIBUTED DATABASE? What does DISTRIBUTED DATABASE mean? DISTRIBUTED DATABASE meaning - DISTRIBUTED DATABASE definition - DISTRIBUTED DATABASE explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. A distributed database is a database in which storage devices are not all attached to a common processing unit such as the CPU, and which is controlled by a distributed database management system (together sometimes called a distributed database system). It may be stored in multiple computers, located in the same physical location; or may be dispersed over a network of interconnected computers. Unlike parallel systems, in which the processors are tightly coupled and constitute a single database system, a distributed database system consists of loosely coupled sites that share no physical components. System administrators can distribute collections of data (e.g. in a database) across multiple physical locations. A distributed database can reside on network servers on the Internet, on corporate intranets or extranets, or on other company networks. Because they store data across multiple computers, distributed databases can improve performance at end-user worksites by allowing transactions to be processed on many machines, instead of being limited to one. Two processes ensure that the distributed databases remain up-to-date and current: replication and duplication. 1. Replication involves using specialized software that looks for changes in the distributive database. Once the changes have been identified, the replication process makes all the databases look the same. The replication process can be complex and time-consuming depending on the size and number of the distributed databases. This process can also require a lot of time and computer resources. 2. Duplication, on the other hand, has less complexity. It basically identifies one database as a master and then duplicates that database. The duplication process is normally done at a set time after hours. This is to ensure that each distributed location has the same data. In the duplication process, users may change only the master database. This ensures that local data will not be overwritten. Both replication and duplication can keep the data current in all distributive locations. Besides distributed database replication and fragmentation, there are many other distributed database design technologies. For example, local autonomy, synchronous and asynchronous distributed database technologies. These technologies' implementations can and do depend on the needs of the business and the sensitivity/confidentiality of the data stored in the database, and the price the business is willing to spend on ensuring data security, consistency and integrity. When discussing access to distributed databases, Microsoft favors the term distributed query, which it defines in protocol-specific manner as "ny SELECT, INSERT, UPDATE, or DELETE statement that references tables and rowsets from one or more external OLE DB data sources". Oracle provides a more language-centric view in which distributed queries and distributed transactions form part of distributed SQL. Today the distributed DBMS market is evolving dramatically, with new, innovative entrants and incumbents supporting the growing use of unstructured data and NoSQL DBMS engines, as well as XML databases and NewSQL databases. These databases are increasingly supporting distributed database architecture that provides high availability and fault tolerance through replication and scale out ability. Some examples are Aerospike, Cassandra, Clusterpoint, ClustrixDB, Couchbase, Druid (open-source data store), FoundationDB, NuoDB, Riak and OrientDB. The blockchain technology popularised by bitcoin is an implementation of a distributed database.
Views: 9236 The Audiopedia
Code One Preview: Machine Learning, Blockchain, and Database Design
 
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Oracle ACE Director Heli Helskyaho provides technical detail and background on the sessions she will present at Oracle Code One and at Oracle OpenWorld, Oct 22-25, 2018 in San Francisco. Code One Sessions: - Evaluation of Machine Learning in R and Python and In-Database Machine Learning [DEV4736] with Brendan Tierney, Oralytics Thurs, Oct 25, 9:00am - 9:45am | Moscone West - Room 2018 - Tracking Spare Parts with Blockchain [DEV5123] with Sonja Meyer (Oracle) and Jens Lusebrink (Oracle) Thurs, Oct 25, 2:00pm - 2:45pm | Moscone West - Room 2005 OpenWorld Sessions: Do We Still Need to Design Databases? [TRN1743] Mon, Oct 22, 3:45pm - 4:30pm | Moscone West - Room 3002 https://developer.oracle.com/ https://cloud.oracle.com/en_US/tryit
Views: 140 Oracle Developers
Blockchain tutorials | 2. Centralised vs Decentralised vs Distributed Systems
 
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Subscribe to my youtube channel: https://goo.gl/hts9Rf
Views: 587 Technology Team
HC30-T1-X: Blockchains and Distributed Ledgers
 
02:10:45
Tutorial 1, Hot Chips 30 (2018), Sunday, August 19, 2018. Organizer: Geoffrey Burr, IBM A New Era in Distributed Computing with Blockchains and Databases Dr. C. Mohan, IBM Fellow, IBM Research–Almaden A new era is emerging in the world of distributed computing with the growing popularity of blockchains (shared, replicated and distributed ledgers) and the associated databases as a way of integrating inter-organizational work. Originally, the concept of a distributed ledger was invented as the underlying technology of the cryptocurrency Bitcoin. But the adoption and further adaptation of it for use in the commercial or permissioned environments is what is of utmost interest to me and hence will be the focus of this tutorial. Computer companies like IBM and Microsoft, and many key players in different vertical industry segments have recognized the applicability of blockchains in environments other than cryptocurrencies. IBM did some pioneering work by architecting and implementing Fabric, and then open sourcing it. Now Fabric is being enhanced via the Hyperledger Consortium as part of The Linux Foundation. A few of the other efforts include Enterprise Ethereum, R3 Corda and BigchainDB. While there is no standard in the blockchain space currently, all the ongoing efforts involve some combination of database, transaction, encryption, consensus and other distributed systems technologies. Some of the application areas in which blockchain pilots are being carried out are: smart contracts, supply chain management, know your customer, derivatives processing and provenance management. In this talk, I will survey some of the ongoing blockchain projects with respect to their architectures in general and their approaches to some specific technical areas. I will focus on how the functionality of traditional and modern data stores are being utilized or not utilized in the different blockchain projects. I will also distinguish how traditional distributed database management systems have handled replication and how blockchain systems do it. Since most of the blockchain efforts are still in a nascent state, the time is right for database and other distributed systems researchers and practitioners to get more deeply involved to focus on the numerous open problems.
Views: 388 hotchipsvideos
BLOCKCHAIN FOR DUMMIES
 
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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.
Views: 2929 OKCYGENIO
Ethos Summit : Blockchain - The Ultimate Distributed System Paradigm Shift
 
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Maurice Herlihy has an A.B. in Mathematics from Harvard University, and a Ph.D. in Computer Science from M.I.T. He has served on the faculty of Carnegie Mellon University and the staff of DEC Cambridge Research Lab. He is the recipient of the 2003 Dijkstra Prize in Distributed Computing, the 2004 Gödel Prize in theoretical computer science, the 2008 ISCA influential paper award, the 2012 Edsger W. Dijkstra Prize, and the 2013 Wallace McDowell award. He received a 2012 Fulbright Distinguished Chair in the Natural Sciences and Engineering Lecturing Fellowship, and he is fellow of the ACM, a fellow of the National Academy of Inventors, the National Academy of Engineering, and the National Academy of Arts and Sciences.
Views: 449 Ethos
BLOCKCHAINS || SVC || SHINECITY GROUP
 
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BLOCKCHAINS.. A blockchain, originally block chain, is a continuously growing list of records, called blocks, which are linked and secured using cryptography. Each block typically contains a hash pointer as a link to a previous block, a timestamp and transaction data. By design, blockchains are inherently resistant to modification of the data. It is "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way". For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once recorded, the data in any given block cannot be altered retroactively without the alteration of all subsequent blocks, which requires collusion of the network majority. Blockchains are secure by design and are an example of a distributed computing system with high Byzantine fault tolerance. Decentralized consensus has therefore been achieved with a blockchain. This makes blockchains potentially suitable for the recording of events, medical records, and other records management activities, such as identity management, transaction processing, documenting provenance, food traceability or voting. The first blockchain was conceptualized in 2008 by an anonymous person or group known as Satoshi Nakamoto and implemented in 2009 as a core component of bitcoin where it serves as the public ledger for all transactions. The invention of the blockchain for bitcoin made it the first digital currency to solve the double spendingproblem without the need of a trusted authority or central server. The bitcoin design has been the inspiration for other applications. Note:- This video only and only by education purpose.
What is DISTRIBUTED DATA STORE? What does DISTRIBUTED DATA STORE mean?
 
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What is DISTRIBUTED DATA STORE? What does DISTRIBUTED DATA STORE mean? DISTRIBUTED DATA STORE meaning - DISTRIBUTED DATA STORE definition - DISTRIBUTED DATA STORE explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ A distributed data store is a computer network where information is stored on more than one node, often in a replicated fashion. It is usually specifically used to refer to either a distributed database where users store information on a number of nodes, or a computer network in which users store information on a number of peer network nodes. Distributed databases are usually non-relational databases that make a quick access to data over a large number of nodes possible. Some distributed databases expose rich query abilities while others are limited to a key-value store semantics. Examples of limited distributed databases are Google's BigTable, which is much more than a distributed file system or a peer-to-peer network, Amazon's Dynamo and Windows Azure Storage. As the ability of arbitrary querying is not as important as the availability, designers of distributed data stores have increased the latter at an expense of consistency. But the high-speed read/write access results in reduced consistency, as it is not possible to have both consistency, availability, and partition tolerance of the network, as it has been proven by the CAP theorem. In peer network data stores, the user can usually reciprocate and allow other users to use their computer as a storage node as well. Information may or may not be accessible to other users depending on the design of the network. Most peer-to-peer networks do not have distributed data stores in that the user's data is only available when their node is on the network. However, this distinction is somewhat blurred in a system such as BitTorrent, where it is possible for the originating node to go offline but the content to continue to be served. Still, this is only the case for individual files requested by the redistributors, as contrasted with a network such as Freenet where all computers are made available to serve all files. Distributed data stores typically use an error detection and correction technique. Some distributed data stores (such as Parchive over NNTP) use forward error correction techniques to recover the original file when parts of that file are damaged or unavailable. Others try again to download that file from a different mirror...
Views: 899 The Audiopedia
Exergy: Set the Data Free
 
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Exergy™ is a distributed ledger system combining software and hardware layers, a token system for permitting data, and an architecture that advances market design and technology in tandem. Through our blockchain software, Exergy creates secure data pathways for decentralized markets, peer-to-peer transactions, predictive analytics, micro-hedging and other applications that are only beginning to be explored.
Views: 2101 LO3 Energy
Hashgraph vs Blockchain | Is This Is The End of Bitcoin ?
 
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The Hashgraph is a protocol that provides a distributed consensus ledger. It allows community users to generate transactions, and agree on the order in which they did the transactions, in an environment where everyone trusts no single user. Blockchain distributed data structure that enables identifying and tracking transactions digitally and sharing this information across a the network, creating in a sense a distributed trust network. The distributed ledger technology offered by blockchain provides a transparent and secure means for tracking the ownership and transfer of assets. ================================================= 💰Get a Coinbase Wallet! - https://www.coinbase.com/join/5a4bf25... Sign up! 💰Get a Binance Wallet! - https://www.binance.com/?ref=21867060 Sign up! =================================================== ★ Any donation is highly appreciated. 🔑 BTC Wallet Address: 16EtKHG2rwH2NqA4MniK4JRhzPyv5AeiER 🔑 ETH Wallet Address: 0x1db0fa9a379e46cb205a39a0766e30d3e3d0d11e 🔑 LTC Wallet Address: LRcmBavhskBURqmw1sujV5LS8WUPvfaNj8 =================================================== ➤ How to Invest In Crypto: https://www.youtube.com/watch?v=M4Nlj-y9utI ➤Top Richest in Crypto: https://www.youtube.com/watch?v=Q2kT6ypgoVY ➤ Cool Facts About Bitcoin: https://www.youtube.com/watch?v=iOPn4f6OeyY ==================================================== Thank you so much for watching! ==================================================== Hashgraph | blockchain | hashgraph vs blockchain | Bitcoin | Cryptocurrency
Views: 10086 Aimstone
L12: What is a Blockchain?
 
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The blockchain is a fairly simple data structure. In this video I introduce the bitcoin blockchain, and explain everything you need to know about it to understand blockchain consensus. As a bonus I explain how Merkle trees are used to save disk space. The next video in this series will cover the consensus algorithm itself. This is a lecture from the Distributed Systems class. See www.distributedsystemscourse.com for more information.
Building a Blockchain in Under 15 Minutes - Programmer explains
 
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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
Views: 404510 Ivan on Tech
A Guide to Building Your First Decentralized Application
 
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Web 3.0 is here! Welcome to the dark side of web and mobile development (in a good way). Lets talk about how we can use blockchains, distributed hash tables, and peer to peer protocols to create decentralized applications! Code for this video: https://github.com/llSourcell/Your_First_Decentralized_Application Follow me: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology More learning resources: https://www.safaribooksonline.com/library/view/decentralized-applications/9781491924532/ch01.html https://github.com/DavidJohnstonCEO/DecentralizedApplications https://coinsutra.com/dapps-decentralized-applications/ https://medium.com/@mvmurthy/full-stack-hello-world-voting-ethereum-dapp-tutorial-part-1-40d2d0d807c2 https://blockgeeks.com/guides/dapps-the-decentralized-future/ https://dappsforbeginners.wordpress.com/tutorials/your-first-dapp/ https://ethereum.stackexchange.com/questions/122/how-to-create-a-dapp-from-scratch-on-ethereum https://blog.coinbase.com/app-coins-and-the-dawn-of-the-decentralized-business-model-8b8c951e734f Join us in the Wizards Slack channel: http://wizards.herokuapp.com/ And please support me on Patreon: https://www.patreon.com/user?u=3191693 Follow me: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology Instagram: https://www.instagram.com/sirajraval/ Instagram: https://www.instagram.com/sirajraval/ Credits to Mahesh Murthy for the code and inspiration: http://www.zastrin.com Signup for my newsletter for exciting updates in the field of AI: https://goo.gl/FZzJ5w Hit the Join button above to sign up to become a member of my channel for access to exclusive content!
Views: 321406 Siraj Raval
How does a blockchain work - Simply Explained
 
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What is a blockchain and how do they work? I'll explain why blockchains are so special in simple and plain English! 💰 Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 📚 Sources can be found on my website: https://www.savjee.be/videos/simply-explained/how-does-a-blockchain-work/ 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be ✉️ Subscribe to newsletter: https://goo.gl/nueDfz 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
Views: 2737826 Simply Explained - Savjee
What is BLOCKCHAIN? The best explanation of blockchain technology
 
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Blockchain explained in plain English Understanding how blockchain works and identifying myths about its powers are the first steps to developing blockchain technologies. Blockchain is an algorithm and distributed data structure for managing electronic cash without a central administrator among people who know nothing about one another. Originally designed for the crypto-currency Bitcoin, the blockchain architecture was driven by a radical rejection of at (government-guaranteed) money and bank-controlled payments. Blockchain is a special instance of Distributed Ledger Technologies (DLTs), almost all of which have emerged in Bitcoin's wake. HOW DOES BLOCKCHAIN WORK? Blockchain is a Distributed Ledger Technology (DLT) that was invented to support the Bitcoin cryptocurrency. Bitcoin was motivated by an extreme rejection of government-guaranteed money and bank-controlled payments. The developer of Bitcoin, Satoshi Nakamoto envisioned people spending money without friction, intermediaries, regulation or the need to know or trust other parties. Technically, the original blockchain is separable from Bitcoin, but this report will show that the blockchain design is so specific to Bitcoin that it's not a good fit for much else. The central problem in electronic cash is Double Spend. Because pure electronic money is just data, nothing stops a currency holder from trying to spend it twice. Blockchain solves the Double Spend problem without a digital reserve fund or similar form of umpire. Blockchain monitors and verifies Bitcoin transactions by calling upon a decentralized network of volunteer-run nodes to, in effect, vote on the order in which transactions occur. The network's algorithm ensures that each transaction is unique. Video created by the Centre of International Governance Innovation.
Views: 638886 Lucas Mostazo
"The hows and whys of a distributed SQL database" by Alex Robinson
 
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Until recently, developers have had to deal with some serious tradeoffs when picking a database technology. One could pick a SQL database and deal with their eventual scaling problems or pick a NoSQL database and have to work around their lack of transactions, strong consistency, and/or secondary indexes. However, a new class of distributed database engines is emerging that combines the transactional consistency guarantees of traditional relational databases with the horizontal scalability and high availability of popular NoSQL databases. In this talk, we'll examine the history of databases to see how we got here, covering the motivations for this new class of systems and why developers should care about them. We'll then take a deep dive into the key design choices behind one open source distributed SQL database, CockroachDB, that enable it to offer such properties and compare them to past SQL and NoSQL designs. We will look specifically at how to achieve the easy deployment and management of a scalable, self-healing, strongly-consistent database with techniques such as dynamic sharding and rebalancing, consensus protocols, lock-free transactions, and more. Alex Robinson COCKROACH LABS Alex Robinson is a member of the technical staff at Cockroach Labs, the startup leading the development of the fully open source (Apache-licensed) CockroachDB project. Previously, he was a senior software engineer at Google, where he spent his last two years as a core developer of both Kubernetes and Container Engine. Prior to that, he worked on Google's cloud logging and monitoring infrastructure and improved the efficiency of privacy checks at Facebook.
Views: 6385 Strange Loop
"Blockchain: Alternative Distributed Systems" Webinar
 
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With many of the world’s largest companies aggressively exploring and testing blockchain use cases, it is clear that the technology is poised to disrupt many industries. However, what remains unclear are the inner mechanisms of the technology itself. What makes blockchain different from distributed databases? What new paradigms do blockchains enable that previous technologies could not unlock? How does this affect the design and implementation of blockchain systems? In this webinar, Fraktal Group will explore the technical philosophy behind blockchain technology and distributed systems, and highlight the key differences between both.
Future block-chain technology by UK Government
 
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Interesting information relating to bitcoin and digital coins with other industry applications relating to the blockchain distributed ledger. A blockchain — originally block chain — is a distributed database that maintains a continuously-growing list of ordered records called blocks. Each block contains a timestamp and a link to a previous block. By design blockchains are inherently resistant to modification of the data — once recorded, the data in a block cannot be altered retroactively. Blockchains are secure by design and an example of a distributed computing system with high byzantine fault tolerance. Decentralised consensus can therefore be achieved with a blockchain. This makes blockchains suitable for the recording of events, title, medical records and other records management activities, identity management, transaction processing and proving provenance. This offers the potential of mass disintermediation and vast repercussions for how global trade is conducted. Official PDF http://bit.ly/blockchain-uk
Views: 425 Bitcoin Bank
14  Introduction to Sharding
 
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Views: 65931 B's March
Distributed trust with blockchain
 
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A blockchain is a distributed database that maintains a continuously growing list of ordered records called blocks. Each block contains a timestamp and a link to a previous block.[6] By design, blockchains are inherently resistant to modification of the data — once recorded, the data in a block cannot be altered retroactively.
Views: 46 Koen Fierens
TED Talks: The Blockchain Explained Simply
 
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YOcoin based on the Ethereum Blockchain is Bitcoin 2.0 This is the Future of Cryptocurrency... Sign up and purchase YOcoin at the secure link below. www.YOcoinEX.org or www.YOcoinUSA.org Feel free to ask any questions Learn more at www.YOcoin.org Facebook- www.Facebook.com/YOcoinUSA/ Instagram- www.Instagram.com/YOcoinUSA/ Twitter- www.Twitter.com/YOcoinUSA
Views: 514014 YOcoin
Blockchain
 
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The blockchain is a distributed database that is used to maintain a continuously growing list of records, called blocks. Each block contains a timestamp and a link to a previous block. A blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. By design, blockchains are inherently resistant to modification of the data. Once recorded, the data in any given block cannot be altered retroactively without the alteration of all subsequent blocks and a collusion of the network majority. Functionally, a blockchain can serve as "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way. The ledger itself can also be programmed to trigger transactions automatically." Blockchains are secure by design and are an example of a distributed computing system with high Byzantine fault tolerance. Decentralized consensus has therefore been achieved with a blockchain. This makes blockchains potentially suitable for the recording of events, medical records and other records management activities, such as identity management, transaction processing, and documenting provenance. https://en.wikipedia.org/wiki/Blockchain
Views: 23 Steven Waters
Hierarchical Distributed Ledger for Sensor Data using Ethereum Blockchain
 
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This is a Blockchain based Project created by me (Shivam Pathak) and my friend Kshitiz Srivastava under the guidance of Prof. Irfan Siddavatam. The video is intended for field (Blockchain & IOT) experts. In this project we have created an IOT based application for trading sensor data and maintaining a distributed ledger for the same. The system developed is scalable as we have created 2 level (local and global) blockchain hierarchy, where the local blockchains can be added as much as required and interact with one global blockchain. The above video is the simulation of the distributed application created where I have emphasized more on web application usage part (as the in depth explanation would require an hour long explanation).
Views: 78 Shivam Pathak
What is DISTRIBUTED LEDGER? What does DISTRIBUTED LEDGER mean? DISTRIBUTED LEDGER meaning
 
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What is DISTRIBUTED LEDGER? What does DISTRIBUTED LEDGER mean? DISTRIBUTED LEDGER meaning - DISTRIBUTED LEDGER definition - DISTRIBUTED LEDGER explanation. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. A distributed ledger (also called a shared ledger, or referred to as distributed ledger technology) is a consensus of replicated, shared, and synchronized digital data geographically spread across multiple sites, countries, or institutions. There is no central administrator or centralized data storage. A peer-to-peer network is required as well as consensus algorithms to ensure replication across nodes is undertaken. One form of distributed ledger design is the blockchain system, which can be either public or private. But not all distributed ledgers have to necessarily employ a chain of blocks to successfully provide secure and valid achievement of distributed consensus: a blockchain is only one type of data structure considered to be a distributed ledger. In 2016, numerous banks tested distributed ledgers for international payments. Incumbent banks are investing heavily in distributed ledgers as a cost-saving measure and a way to reduce operational risks. The future use of distributed ledgers is expected to monetize the Internet of things in a programmable economy.
Views: 944 The Audiopedia
CyberVein -  Interconnecting the Data that runs the World
 
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- Join us - Telegram: https://t.me/CyberVein Twitter: https://twitter.com/cyberveingroup Whitepaper: https://www.cybervein.org/whitepaper Website: https://www.cybervein.org - Read more - WHITEPAPER https://www.cybervein.org/whitepaper HOW CYBERVEIN MODIFIES DAG TO REVOLUTIONIZE DECENTRALIZED DATABASES https://www.cybervein.org/post/interconnecting-the-data-that-runs-the- world-how-and-why-cybervein-puts-entire-databases-on-the-blockchain SOLVING THE COLLABORATION PARADOX IN SCIENCE WITH DECENTRALIZED DATABASES https://www.cybervein.org/post/solving-the-collaboration- paradox-in-science-with-decentralized-databases PROJECT OVERVIEW https://www.cybervein.org/post/interconnecting-the-data-that-runs-the- world-how-and-why-cybervein-puts-entire-databases-on-the-blockchain CYBERVEIN FOR SMART CITIES https://www.cybervein.org/post/to-make-smart-cities- secure-and-efficient-blockchains-need-to-evolve BEYOND SUPPLY CHAINS - HOW DECENTRALIZED DATABASES CAN REVOLUTIONIZE JUST-IN-TIME PRODUCTION https://www.cybervein.org/post/beyond-supply-chains-how-decentralized- databases-can-revolutionize-just-in-time-production - About CyberVein - The CyberVein network is the first Distributed Ledger System allowing for the decentralized management of complex databases on the blockchain itself, without requiring centralized storage providers. This novel implementation of blockchain technology is only possible thanks to improvements to DAG ledger design developed by CyberVein. ​ Just as the Internet is a public network of networks, CyberVein is a public network of immutable databases, on which information can easily be traded, interconnected, and transformed into structured knowledge. Why do we need decentralised databases? Maintaining databases with qualities that are normally attributed to blockchains -meaning immutability, security, and transparency - makes enormous sense in a variety of industry, research and governance use cases. Players in the global market often need to share information and rely on data they pool and maintain collectively. Supply chain management is one obvious scenario, but there are many more. This can be very problematic if these players have good reasons not to trust each other. Immutable, decentralized databases solve this gracefully. For academia, research and the public sector, use cases are virtually limitless. Scientific processes such as peer review can be revolutionized in the truest sense of the word, while making collaborative research much more efficient. Smart governments and smart cities rely on the collection of vast amounts of data generated by the public, providing city administrators with enormous power and knowledge which aren’t necessarily shared with the public. CyberVein allows this data to be stored in public, decentralized databases, protecting it from malevolent manipulation as well as from attacks, while providing an immutable record of how said data is processed and used. What is CyberVein’s Larger Vision? CyberVein’s eventual goal is to create a universal “Internet of Data”, inter-connecting databases of entire industries, and hence increasing the overall value and connectivity of human knowledge. CyberVein databases are equipped with innate monetization functions, allowing owners of data to define its value. With this, CyberVein incentivises the sharing and trading of data - even among competing entities or organizations that otherwise wouldn’t have the budget to maintain large data sets in the public domain. Technological Innovation Traditional blockchains are not designed to store vast amounts of structured data, especially if this data is being constantly processed by many participants in parallel. In order to build a network of decentralized databases, CyberVein has reinvented fundamental blockchain principles, transforming distributed ledgers into a powerful data management network. To optimize DAG ledgers for the handling of databases, CyberVein improves on Directed Acyclic Graph architectures by introducing a resource conserving consensus algorithm, as well as a smart contracting language and virtual machine, optimised for the management of massive amounts of data.
Views: 7841 CyberVein English
GOTO 2016 • Conflict Resolution for Eventual Consistency • Martin Kleppmann
 
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This presentation was recorded at GOTO Berlin 2016 http://gotober.com Martin Kleppmann - Researcher at University of Cambridge ABSTRACT What do collaborative editors like Google Docs, the calendar app on your phone, and multi-datacenter database clusters have in common? Answer: They all need to cope with network interruptions, and still work offline. They all allow state to be updated [...] Download slides and read the full abstract here: https://gotocon.com/berlin-2016/presentations/show_talk.jsp?oid=7910 https://twitter.com/gotober https://www.facebook.com/GOTOConference http://gotocon.com
Views: 13411 GOTO Conferences
Blockchain Applications Helps Real Estate Companies in Ghana Bitland 2016
 
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Blockchain Applications Helps Real Estate Companies in Ghana Bitland 2016 http://bitlandglobal.com Blockchain Cadastr Ghana | blockchain applications (bitcoin, ethereum) are a form of smart secure technology application. Blockchains uses code and is even used social, in workshops and by microsoft contracts. | WANT TO INVEST IN GHANA !? THAN MAKE SURE YOUR LAND TITLE IS PROPERLY PROTECTED USING OUR SERVICES THEREFOR THE BLOCKCHAIN WHAT IS BLOCKCHAIN ? A block chain or blockchain is a distributed database, introduced in Bitcoin, that maintains a continuously-growing list of data records that each refer to previous items on this list and is thus hardened against tampering and revision. The initial and most widely known application of block chain technology is the public ledger of transactions for bitcoin, which has been the inspiration for other cryptocurrencies and distributed database designs. TRUSTED TIMESTAMP The bitcoin block chain can be used as a trusted timestamp for arbitrary messages. Third party application services store messages directly in the block chain, allowing anyone who has the block chain to read the message WHO SHOULD CONTACT BITLAND !? Bitland is currently offering services to citizens of Ghana as well as companies and farm unions in Ghana - Bitland will investigate the land title that was issued by the land commission of Ghana - then survey the land (as land surveyor in Ghana) - talk to nearby neighbours (to confirm the land-title validity by mouth). - Record the GPS coordinates with a GPS device - Write down the GPS coordinates of the property - Back in the office will submit the data and information to the Blockchain computer registry - Finally Bitland will send a paper-copy of the submitted records to the customer and rightful property owner (as a certificate). BITLAND AND THE GHANA LAND COMMISSION The Bitland Land Registry Procedure is done in addition to the Land Commission procedure. Bitland creates an extra record (elsewhere) that acts as a benchmark. This record is stored in a blockchain meaning that it is super secure and impossible to forge or tamper with (even by Bitland). You could say that it becomes “written in stone”. Should later on a legal land dispute arise then this conflict can be settled (outside of court) quick and easy (meaning with low costs such as the cost of sending a fax with a fax machine to fax the Bitland Certificate). BITLAND INVESTOR RELATIONSHIPS Bitland provides the best services to property investors in Ghana and foreign investment. Bitland can (also) help property investors each step of the way to secure land title registration as well as finding properties to invest in .. We also investors in properties in our portfolio. Bitland has the contacts, the network, the web presence, the know how and good intentions. Bitland is connected to dozens of farm unions so for those interested in gold mining, cacao farming or housing then contact Bitland as well. Note that Bitland values her integrity and besides is aware that maintaining a good reputation can only fulfill our long term global aspirations. We work and worked closely with the Ghana Land Commission Office. BITLAND GLOBAL Bitland is currently (also) developing a Global Blockchain Cadastral System so the Bitcoin-Blockchain Technology can be offered on a large scale .. for example all African nations. Bitland’s efforts will likely (also) uncover vast amounts of money in unknown real estate rights. CALL: +233246255577 EMAIL: [email protected] PERSON: mr. Narigamba Mwinsuubo FACEBOOK: http://www.facebook.com/narigamba FACEBOOK PAGE: https://www.facebook.com/realestatela... GOOGLE+: https://plus.google.com/u/0/109196501... GOOGLE COLLECTION: https://plus.google.com/u/0/collectio... TWITTER: https://twitter.com/realestateghana YOUTUBE: https://www.youtube.com/watch?v=d5cpe... CHANNEL: https://www.youtube.com/channel/UCM-m... REAL ESTATE: https://www.youtube.com/watch?v=MnJKI... FORUM: https://youtu.be/tla6_T1Yt40 #GHANA #REALESTATE #BITLAND #BLOCKCHAIN#LEGAL #ARCHITECTS #GOLDMINING #CACOA #CACAO #FARMERS #WondaWorld #LANDREGISTRATION #LANDGHANA VISIT: http://bitlandglobal.com
BLOCKCHAIN
 
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blockchain,originally block chain, is a growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. By design, a blockchain is resistant to modification of the data. It is "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way". For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for inter-node communication and validating new blocks. Once recorded, the data in any given block cannot be altered retroactively without alteration of all subsequent blocks, which requires consensus of the network majority. Although blockchain records are not unalterable, blockchains may be considered secure by design and exemplify a distributed computing system with high Byzantine fault tolerance. Decentralized consensus has therefore been claimed with a blockchain. For more information visit our website-: https://www.ajath.com
Views: 6 Ajath Infotech
Storj - Distributed cloud storage - BnkToTheFuture Case Study
 
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http://bit.ly/2gCCCGd These days it’s impossible for businesses and governments around the world to protect confidential files from hackers. In 2014, hackers gained access to very private pictures of Hollywood actresses in the notorious Apple iCloud hack. Heads of state and presidential candidates like Angela Merkel and Hillary Clinton have been spied on, their phones compromised, and emails leaked. On top of this, Edward Snowden revealed how a large number of companies are forced by governments to hand over your files. They are given little choice. As long as all these files keep being stored on servers belonging to big companies like Amazon, Google, Apple and Dropbox, hackers will keep hacking. Unfortunately, because they have much of the world's files, they are a constant target for hackers as well as government demands. At BnkToTheFuture we believe that there must be a better way and when we found Storj, we began to realise that these problems may become history. Storj developed files storage solutions to tackle these issues and chose to raise part of their funding on our Online Investment Platform - BnkToTheFuture.com When the creator of Bitcoin invented the Blockchain it made it possible for you to own your own money and send it cheaper, faster and more securely than when using a bank. Storj allows anybody to store their files encrypted across a Blockchain-based decentralised network of computers rather than trusting one company to keep them safe. This means that just like Bitcoin they can be stored cheaper, faster and more securely and there is no central point of failure. It also means that anybody can rent out their spare hard drive space and get paid for contributing to the network. 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 see the total number of professional investors, how much they have invested, and the amount of dividends that they’ve received. Storj was a perfect match for us. They had a top lineup of support from angel investors at Google Ventures, Qualcomm Ventures, Techstars and now BnkToTheFuture. They wanted more 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. We gave Storj 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 Storj through one of our Venture Capital funds, meaning, investors got to co-invest with us on the same terms and our interests are aligned. If Storj 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 Storj 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 Storj, you can get involved by making a quick online application for finance at BnkToTheFuture.com or register to see if you qualify to invest. http://bit.ly/2gCCCGd
Views: 1599 BnkToTheFuture.com
what is blockchain? (Basic)
 
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A blockchain, originally block chain, is a growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a merkle tree root hash). By design, a blockchain is resistant to modification of the data. It is "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way". For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for inter-node communication and validating new blocks. Once recorded, the data in any given block cannot be altered retroactively without alteration of all subsequent blocks, which requires consensus of the network majority. Although blockchain records are not unalterable, blockchains may be considered secure by design and exemplify a distributed computing system with high Byzantine fault tolerance. Decentralized consensus has therefore been claimed with a blockchain. Blockchain was invented by Satoshi Nakamoto in 2008 to serve as the public transaction ledger of the cryptocurrency bitcoin. The invention of the blockchain for bitcoin made it the first digital currency to solve the double-spending problem without the need of a trusted authority or central server. The bitcoin design has inspired other applications, and blockchains which are readable by the public are widely used by cryptocurrencies. Blockchain is considered a type of payment rail. Private blockchains have been proposed for business use. Sources such as the Computerworld called the marketing of such blockchains without a proper security model "snake oil". reference: https://en.wikipedia.org/wiki/Blockchain If you belong to the video clip and doesn't want to appear on my link, please message me, the video will be deleted after i have received message to discard it. Video courtesy of DiscoverWithSaad
Views: 7 NAW LAWT MARIP
The Blockchain: A New Security Mindset for an IoT World | Michael Casey
 
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An even bigger explosion in cybercrime awaits unless we contend with the inconsistency between our prevailing, centralized system for securing information and the increasingly decentralized nature of a peer-to-peer and device-to-device economy. The distributed, decentralized structure of the IoT world will demand a distributed, decentralized trust structure for managing data. The blockchain points to a solution. Michael Casey discusses the security challenges at the Next Money 2017 Fintech Finals
Views: 1554 Next Money
01 Microsoft Blockchain as a Service  -Distributed Ledgers
 
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Are you interested in blockchain technology? Want help getting started? The applications and solutions that can be created with this technology provide some unique and very valuable features which highlight the future of building secure applications that enable data-sharing in a way never before imagined. And Microsoft has been hard at work building integration into the Azure platform. Join the experts to explore the components in isolation and in these new solutions. Find out how blockchains function at a low level, look at leveraging a variety of different chains in a solution, and see how to get started building decentralized applications. Explore distributed ledgers (the core blockchain concept), find out how to implement DevOps for blockchain applications, see tool and framework options, and much more. Get the details you need to start architecting solutions using Azure Blockchain as a Service. 1 | Distributed Ledgers 101 Explore distributed ledgers, one of the most fundamental models that make up blockchains. Find out how consensus algorithms work, the math behind the madness, and how ledgers are built and managed. 2 | Smart Contracts Explained Learn about smart contracts, how they have extended blockchain to make it a viable product for enterprises, and how to build and debug your first smart contract. 3 | Decentralized Applications and Architecture Find out how decentralized applications differ from traditional client server or web-based applications. Learn how to design a solution using blockchain. 4 | DevOps for Blockchains on Azure Learn how to construct automated deployments of the smart contract backend. Learn about how these differ from traditional application deployment. 5 | Development of Decentralized Applications Learn about how next-generation, decentralized applications that leverage blockchain technologies can be developed and built. Learn Learn about distributed ledgers, the core blockchain concept. Explore smart contracts and how they are used by blockchain. Get the details on application design for decentralized blockchain applications. Find out how to implement DevOps for blockchain applications. See tool and framework options for building blockchain applications. Learn how ledgers are built and managed.
Views: 638 RG Edu
Blockchain: Real World Use Cases
 
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At Global Architecture Week 2015, we covered ‘Digital Currencies and Cash’ and their relevance to Tax and Welfare Authorities, concluding with the message: “It’s not about Bitcoin, it’s about the Blockchain”. Blockchain technology has the potential to enable a new mutually trusted, transparent way of sharing and transacting. In the UK Public Sector, Sir Mark Walport’s report Distributed Ledger Technology: Beyond Blockchain encouraged Government to assess its early use and potential. Meanwhile in the private sector, Blockchain FinTech excitement among start-ups and venture capitalists remained strong for a technology promised to be “like a whole new internet for value exchange”. But where are the real world use cases today? What is it that makes a use case more likely to succeed? In this talk, Nick Meyne, Enterprise Architect, Capgemini shares and discusses a number of Capgemini examples. Filmed at Capgemini Week of Innovation Networks 2016 in Telford, UK.
Views: 135219 Capgemini
Top 5 Technologies
 
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Top 5 Technologies in 2019 : https://youtu.be/aCY1GyKVpBw Python Tutorial for Beginners: https://goo.gl/cLKYQP 5 skills for IT Professional: https://goo.gl/ba6Ui7 Top 5 technologies to learn in 2018. Technologies are : IoT (Internet of Things) Cloud Computing Blockchain Artificial Intelligence Big Data IoT : The Internet of things (IoT) is the network of physical devices, vehicles, home appliances and other items embedded with electronics, software, sensors, actuators, and network connectivity which enables these objects to connect and exchange data. The IoT allows objects to be sensed or controlled remotely across existing network infrastructure. Cloud Computing: Cloud computing enables ubiquitous access to shared pools of configurable system resources and higher-level services that can be rapidly provisioned with minimal management effort, often over the Internet. Cloud computing relies on sharing of resources to achieve coherence and economy of scale, similar to a utility. Third-party clouds enable organizations to focus on their core businesses instead of expending resources on computer infrastructure and maintenance. Cloud providers typically use a "pay-as-you-go" model. Blockchain: A blockchain is a continuously growing list of records, called blocks, which are linked and secured using cryptography which is resistant to modification of the data. Each block typically contains a hash pointer as a link to a previous block, a timestamp and transaction data. Blockchains are secure by design and are an example of a distributed computing system The first blockchain was conceptualized in 2008 by an anonymous person or group known as Satoshi Nakamoto and implemented in 2009 as a core component of bitcoin where it serves as the public ledger for all transactions. Artificial intelligence: AI is intelligence displayed by machines. In computer science, AI research is defined as the study of "intelligent agents": any device that perceives its environment and takes actions that maximize its chance of success at some goal. Colloquially, the term "artificial intelligence" is applied when a machine mimics "cognitive" functions that humans associate with other human minds, such as "learning" and "problem-solving Big Data: Big data is data sets that are so voluminous and complex that traditional data processing application software is inadequate to deal with them. Big data challenges include capturing data, data storage, data analysis, search, sharing, transfer, visualization, querying, updating and information privacy. There are three dimensions to big data known as Volume, Variety and Velocity. Editing Monitors : https://amzn.to/2RfKWgL https://amzn.to/2Q665JW https://amzn.to/2OUP21a. Editing Laptop : ASUS ROG Strix - (new version) https://amzn.to/2RhumwO Camera : https://amzn.to/2OR56AV lens : https://amzn.to/2JihtQo Mics https://amzn.to/2RlIe9F https://amzn.to/2yDkx5F Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko: https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1 You can also support us: https://goo.gl/5PB5RN
Views: 391637 Telusko
Experiences with Scaling Blockchain-based Data Stores
 
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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.
Views: 1102 Microsoft Research
Distributed Storage Systems Made Easy
 
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Every distributed storage system makes tradeoffs between performance, resource usage, consistency, and availability to meet its environment or design goals. However, when faced with new environments or workloads, these tradeoffs change --- requiring new systems to be built or existing ones to be modified. Unfortunately, new systems often take a lot of development time and modifying an existing system is no easy feat. I present a new approach that greatly simplifies the development of new storage systems. The approach is based on the fundamental insight that given a set of basic replication mechanisms, the design of data storage systems can be separated into the definition of how data and updates are routed among nodes and the definition of when it is safe to access data. This approach is realized by the PADS policy architecture. With PADS, a designer implements a distributed storage system by specifying routing policy and blocking policy. This talk presents the approach, details of PADS, and how PADS has been used build a dozen systems covering a large part of the design space. Each of these systems required only a few weeks of development time and could be modified to adapt to new goals with little effort.
Views: 2120 Microsoft Research