Public Blockchain - New Videos

Public Blockchain VS Consortium Blockchain VS Private Blockchain

Channel: B21 Block: Cryptocurrency & Blockchain Tutorials & Total View: 5546

Add Date: November 22, 2016, 12:31 pm & Duration: 00:04:27

Likes: 32 | Dislike: 5


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So as it stands there are three types of Blockchains available, and all three have there own positives and negatives. So we have public blockchain’s, consortium blockchain’s, and private blockchain’s.









What's the difference between public and private blockchain?

Channel: IBMBlockchain & Total View: 4536

Add Date: September 20, 2017, 5:06 am & Duration: 00:02:09

Likes: 17 | Dislike: 0


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Looking at the major differences between a private Blockchain with a public blockchain. Within a private blockchain we also know the participants in the network so we take a look at how we add a new participant into a blockchain network to know who they are.

IBM Blockchain:
Hyperledger Fabric:

Presented by Ant Cole | @AntCole

What is Blockchain?:
Learn More About IBM Blockchain Platform:

Blockchain: Differences between public and private blockchains

Channel: Rise Global & Total View: 1206

Add Date: March 10, 2017, 5:37 am & Duration: 00:17:34

Likes: 6 | Dislike: 0


fintech, blockchain, risevilnius, coingate, public, private

FinTech Re-Evolution | PSD2 & Blockchain
Part2 - Blockchain
Presenter - Rytis Bieliauskas (CoinGate)

Blockchain/Bitcoin for beginners 3: public/private keys, signatures... and first ever transaction

Channel: Matt Thomas & Total View: 16738

Add Date: July 2, 2016, 7:49 am & Duration: 00:36:25

Likes: 194 | Dislike: 6


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Detailed overview of public/private key encryption and live demo of exactly how digital signatures work on Mac, combining public and private keys and hash functions.

Welcome to episode 3 of my series on Blockchain/Bitcoin. I'm joined once again by my girlfriend Nadisha who is my classroom pupil...

I build on the hash function concepts from the previous episode and explain the basic concepts public and private keys and how to use them to create digital signatures - a key part of the bitcoin infrastructure.

We demonstrate in a Mac terminal how you can generate your own keys and encrypt and decrypt and sign your own resources - learning by doing always works.

We touch on bitcoin addresses, what they represent and how they are created.

Finally I go back for a refresh of the bitcoin blockchain browser and look at the first ever bitcoin transaction in the "Genesis Block" to show what a real bitcoin address looks like.

Bitcoin Blockchain browser

Online hash calculator - great way to practice and familiarise with hash functions - one of the most important building blocks of Blockchain/Bitcoin

Course to date (previous...

Blockchain 101 - Part 2 - Public / Private Keys and Signing

Channel: Anders Brownworth & Total View: 55572

Add Date: December 29, 2017, 4:41 pm & Duration: 00:08:54

Likes: 1820 | Dislike: 8


blockchain, bitcoin, demo, public key, private key, signatures, signing, verification, cryptography, cryptocurrency

This is part two in my basic visual introduction to the concepts behind a blockchain. We build on the concepts from the previous video and introduce public / private key pairs and signing using an interactive web demo.

If you missed it, part 1 is here:

If you are interested in playing with this on your own, it is available online at:

The code that runs this demo is also on GitHub:

If you want to know more about how public key cryptography works, see the Wikipedia page on it:

The details of how public keys relate to private keys are hard to summarize, but it has to do with Euler's theorem. Basically, using Euler's theorem there is some math you can do to a number given some parameters (which I'll call the public key) which allows someone with some other parameters (which I'll call the private key) to decipher the original number without having to do brute force factorization because there is a shortcut way to find the phi of a prime number. Rather than me butchering the explanation, check this video series out for a more...


Channel: Fujan Crypto Reports & Total View: 170

Add Date: April 12, 2018, 10:13 pm & Duration: 00:17:48

Likes: 4 | Dislike: 0


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The Difference Between Private and Public Blockchain

Channel: Equibit Group & Total View: 31

Add Date: May 25, 2018, 2:05 pm & Duration: 00:04:28

Likes: 3 | Dislike: 0


bitcoin, ethereum, erc20, coindesk, cointelegraph, forbes, fortune, techcrunch, crunchbase, lightning, blockchain, capital, securities, equibit, equity, stocks, bonds, trading, interest, dividend

An excerpt on a panel discussion hosted by the CFA Society of Toronto - "Blockchain and the Disruption to Financial Services"

Connect with us!

Blockchain tutorial 23: LedgerBlockchain tutorial 23: Ledger
00:02:35May 2, 2017, 10:23 am
Blockchain tutorial 23: Ledger

Channel: & Total View: 6966

Add Date: May 2, 2017, 10:23 am & Duration: 00:02:35

Likes: 79 | Dislike: 3


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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...

Distributed Credit Chain ICO Review - a public blockchain to transform financial services

Channel: ICO TOP 4.0 & Total View: 9754

Add Date: May 27, 2018, 8:15 am & Duration: 00:05:53

Likes: 71 | Dislike: 12


Distributed Credit Chain, ICO, ICO Review, Distributed Credit Chain ICO Review

Distributed Credit Chain ICO Review - a public blockchain to transform financial services
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Public vs Permission Blockchain Part 1 Finding a definition | Blockchain: Out of the Labs

Channel: DraperTV & Total View: 75

Add Date: June 2, 2017, 10:02 am & Duration: 00:09:42

Likes: 0 | Dislike: 0


Draper University, DraperU, Entrepreneur, Entrepreneurship, Starting up, Startup, Silicon Valley, DraperTV, Changing the world, Timothy C. Draper

Daniel Cawrey (Pactum) leads the panel on permission and public blockchains. Panelists include:
Catheryne Nicholson (Blockcypher)
David Haimes (Oracle)
Sean Barclay (IBM)
Shelly Kumar
For more information, check out:
More videos and livestreams:
Residential program:
Online Courses:

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Alex Tapscott: "Blockchain Revolution" | Talks at Google

Channel: Talks at Google & Total View: 177716

Add Date: July 11, 2016, 2:41 pm & Duration: 00:56:39

Likes: 1720 | Dislike: 67


bitcoin, blockchain, talks at google, technology, banking, fintech, the future, disruption, paradigm shift

Talks at Google in London were delighted to welcome Alex Tapscott to talk about his book Blockchain Revolution, looking at how the technology behind Bitcoin can reshape the world of business and transform the old order of human affairs for the better.

Alex can be found on Twitter at: @alextapscott

Book on Google Play - with free first chapter!

About the Book:
The technology likely to have the greatest impact on the future of the world economy has arrived, and it's not self-driving cars, solar energy, or artificial intelligence. It’s called the blockchain.

The first generation of the digital revolution brought us the Internet of information. The second generation powered by blockchain technology is bringing us the Internet of value: a new, distributed platform that can help us reshape the world of business and transform the old order of human affairs for the better.

Blockchain is the ingeniously simple, revolutionary protocol that allows transactions to be simultaneously anonymous and secure by maintaining a tamperproof public ledger of value. Though it's the technology that drives bitcoin and other digital currencies,...

Blockchain Types & Their Use-Cases - Public, Consortium & Private

Channel: Inchained & Total View: 550

Add Date: October 5, 2017, 11:59 pm & Duration: 00:04:52

Likes: 28 | Dislike: 0


blockchain, bitcoin, ethereum, hyperledger, types, public, private, solidity, use-case, inchained

Discussion on the three types of Blockchains : Public, Consortium & Private.
The advantages & disadvantages of each of those & the business use-case associated with them.

Zilliqa ICO Review - Public Blockchain PlatformZilliqa ICO Review - Public Blockchain Platform
00:26:50October 29, 2017, 9:00 am
Zilliqa ICO Review - Public Blockchain Platform

Channel: Ian Balina & Total View: 40227

Add Date: October 29, 2017, 9:00 am & Duration: 00:26:50

Likes: 272 | Dislike: 51


ian balina, hacking the system, icos, initia coin offerings, token sales, token generation events, Zilliqa ico, Zilliqa initial coin offering, Zilliqa token sale, Zilliqa token generation event, Zilliqa tge

In this video, I review Zilliqa's upcoming initial coin offering.

In my point of view Zilliqa is a strong buy, its the 6th best ICO of month.

Zilliqa is the world's first high-throughput public blockchain platform - designed to scale to thousands ​of transactions per second.

Zilliqa brings the theory of sharding to practice with its novel protocol that increases transaction rates as its network expands. The platform is tailored towards enabling secure data-driven decentralised apps, designed to meet the scaling requirements of machine learning and financial algorithms.

​Zilliqa has been under research and development for two years, and powered several ground-breaking deployments commercially.

Buy My Weekly ICO Report:

Sign up for my favorite cryptocurrency exchange here:

Join My Telegram Mastermind: htto://






Apa itu Bitcoin Private Key Dan Public Key? Dunia Blockchain

Channel: Kendrick Kalim & Total View: 2817

Add Date: September 30, 2017, 5:46 pm & Duration: 00:07:23

Likes: 44 | Dislike: 1

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#209 Amrit Kumar & Xinshu Dong: Zilliqa – A Scalable Sharded Public Blockchain

Channel: Epicenter & Total View: 2669

Add Date: November 14, 2017, 9:53 am & Duration: 01:13:00

Likes: 38 | Dislike: 0


Bitcoin, Blockchain, Cryptocurrrency, Economics, Finance, FinTech, Startups, OpenSource

Support the show, consider donating:
BTC: 1CD83r9EzFinDNWwmRW4ssgCbhsM5bxXwg (
ETH: 0x8cdb49ca5103Ce06717C4daBBFD4857183f50935 (

Scaling public blockchains such as Bitcoin and Ethereum is a long standing technical challenge. In this episode, we cover Zilliqa which has pioneered a design to scale public blockchain throughput with the number of nodes by sharding the blockchain. Sharding has been hitherto proposed as a scaling technique by Ethereum. Zilliqa is one of the first projects to propose a concrete design with an operational testnet processing a couple thousand transactions per second across several shards.

Our guests, Xinshu Dong (CEO) and Amrit Kumar (Crypto Lead), walk us through the objectives, protocol design and fundraising structure of this innovative project. We also briefly cover Zilliqa's novel approach to designing a smart contract language and execution environment.

Topics discussed in this episode:
- Sharding as a scaling technique
- Different kinds of sharding, including state sharding and non-state sharding
- How Zilliqa works under the hood - consensus algorithms & transaction processing
- Zilliqa's novel approach for a smart contract...

Hash Graph: The Next Big Public Ledger Launching March 13th?? (Blockchain Beach Day Conference)

Channel: Crypt0 & Total View: 6540

Add Date: February 24, 2018, 4:00 pm & Duration: 00:13:38

Likes: 215 | Dislike: 27


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Introduction to Blockchain for GovernmentIntroduction to Blockchain for Government
00:02:45November 3, 2017, 9:38 am
Introduction to Blockchain for Government

Channel: KPMG US & Total View: 2243

Add Date: November 3, 2017, 9:38 am & Duration: 00:02:45

Likes: 31 | Dislike: 0

What is the potential for harnessing distributed ledger technology in the public sector?

Public vs Permission Blockchain Part 3 Cryptocurrency | Blockchain: Out of the Labs

Channel: DraperTV & Total View: 37

Add Date: June 2, 2017, 10:03 am & Duration: 00:08:52

Likes: 1 | Dislike: 0


Draper University, DraperU, Entrepreneur, Entrepreneurship, Starting up, Startup, Silicon Valley, DraperTV, Changing the world, Timothy C. Draper

Daniel Cawrey (Pactum) leads the panel on permission and public blockchains. Panelists include:
Catheryne Nicholson (Blockcypher)
David Haimes (Oracle)
Sean Barclay (IBM)
Shelly Kumar
For more information, check out:
More videos and livestreams:
Residential program:
Online Courses:

Subscribe for more videos!

Blockchain/Bitcoin for beginners 8: Bitcoin addresses, public key hash, P2PKH transactions

Channel: Matt Thomas & Total View: 9078

Add Date: September 30, 2016, 10:00 pm & Duration: 00:23:28

Likes: 136 | Dislike: 5


P2PKH, Bitcoin, blockchain, tutorial, how to, begineer, screencast, SHA258, base 58 check, checksum

Before we delve into the inner workings of a bitcoin transaction I wanted to explain how the actual bitcoin address is derived from the public key which in turn is derived from the private key.

I take through step by step all the steps required to derived the checksums etc and show with a real example of a real bitcoin transaction.

Also discuss why checksums are included in Bitcoin addresses in order to eliminate the possibility of characters being corrupted, or modified in transit.

This is the cool tool for converted from base 58 encoded value to hex value.

Good link talking about base 58 encoding.

Who owns the Blockchain? Public, Private, Standards at NCC 2016

Channel: DG Lab EN & Total View: 1043

Add Date: December 14, 2016, 5:57 pm & Duration: 01:04:12

Likes: 5 | Dislike: 0

Taking a closer look at the different forms of blockchain (private, public, etc.), its respective merits, demerits, and current standardizations.

Speech: Brian Behlendorf
Speech: Sachiko Yoshihama
Panel: Adam Levine (moderator) Christopher Allen, Brian, Sachiko, Shin'ichiro

These remarks were part of NCC 2016: “The Social Impact of Blockchain” on Friday November 4th, 9am-6pm at DG717, 717 Market Street, San Francisco, CA 94103.

This full day conference will explore the Social Impact of Blockchain technologies. Bitcoin, Blockchain, Ethereum - these buzzwords are migrating from geek slang to the dictionary as they define an independent architecture for human trust and exchange. Amidst news of discord and hacking, who is responsible for building a reliable distributed ledger? How can the architecture behind crypto-currency benefit the greatest number of earthlings? Friday 4 November at DG717 in San Francisco, we will take a look at how blockchain could evolve to support or supplant our existing social institutions:

For more information about NCC, visit

Biographies for presenters:

Shin’ichiro Matsuo, Ph.D. - Research Affiliate- Director's Liaison for Financial...

Developments in Consortium Blockchain, Insights on Public Blockchain

Channel: LendIt Conference & Total View: 47

Add Date: July 25, 2017, 7:51 am & Duration: 00:07:50

Likes: 0 | Dislike: 0


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Developments in Consortium Blockchain, Insights On Public Blockchain by ChinaLedger's Shuo Bai at LangDi Fintech 2017.

Neo News Private vs Public Blockchains. Centralised blockchain debate. Neo is a leader

Channel: BlockchainBrad & Total View: 629

Add Date: September 27, 2017, 1:11 pm & Duration: 00:57:07

Likes: 23 | Dislike: 1


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Neo & Blockchain News. Private vs Public Blockchains. Is NEO at risk because of centralised blockchains? How does Neo Blockchain work? Does this question of public vs private blockchain even matter? Hi everyone, this video is all about discussing the question of Public versus Private blockchains in the crypto-space. With the upward swing of NEO atm, it is particularly poignant to discuss NEO's future in terms of being a viable Blockchain in the Chinese and World Market. If you are interested in Neo or similar Blockchain technology, this video, however long winded, might be of some worth to you. It might also might not, lol. I don't monetise my vids, I just wanna connect with savvy thinkers and investors in blockchain tech. Hope this helps build your knowledge of the Bchain concepts that underpin the tech itself. I am a novice so please feel free to correct me, I will make mistakes.

Here are the links to the articles I addressed in the video:

Blockchain and PKIBlockchain and PKI
00:04:59January 24, 2018, 10:22 am
Blockchain and PKI

Channel: TELEGRID & Total View: 339

Add Date: January 24, 2018, 10:22 am & Duration: 00:04:59

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blockchain, cybersecurity, PKI, Public Key Infrastructure, Certificates, Bitcoin, Identity and Acess Management, IdAM, IAM

This video describes 3 ways organizations can use Blockchain technology to secure their Public Key Infrastructure.

Crusher of the Month: Zilliqa (ZIL) - High-throughput Public Blockchain Platform

Channel: Crush Crypto & Total View: 5544

Add Date: March 17, 2018, 4:00 pm & Duration: 00:05:01

Likes: 202 | Dislike: 2


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Zilliqa is a high-throughput public blockchain platform designed to scale to thousands of transactions per second. Zilliqa is one of the few blockchains that has demonstrated a high transaction throughout in the range of thousands of transactions a second using common servers (AWS EC2).

Full report by Crush Crypto:

PDF of the presentation:

Zilliqa official website:

Zilliqa whitepaper:

Download the free ICO Guide which contains 6 simple steps for analyzing any ICOs to find the winning projects:

Note: This is not a paid review. We do not offer promotional or advertising services. Our content is based on our own research, analysis and personal opinion.

In our Crusher of the Month series we will select a coin or token each month that we have high conviction in. Here are some reasons why we selected Zilliqa (ticker: ZIL) for our March 2018 Crusher of the Month:

#1: Demonstrated On-Chain Scaling...

What is Hashing & Digital Signature in The Blockchain?

Channel: Blockgeeks & Total View: 15989

Add Date: October 12, 2017, 4:19 am & Duration: 00:06:19

Likes: 163 | Dislike: 2


What is Hashing & Digital Signature in The Blockchain?, hashing, blockchain, bitcoin, ethereum, cryptography, crypto, cryptocurrency, the blockchain, how does blockchain work

What is Hashing & Digital Signature in The Blockchain?

Today, we're going to be talking about the word blockchain and breaking it down to understand what does it mean when someone says, "Blockchain."

What is hashing? Hashing refers to the concept of taking an arbitrary amount of input data, applying some algorithm to it, and generating a fixed-size output data called the hash. The input can be any number of bits that could represent a single character, an MP3 file, an entire novel, a spreadsheet of your banking history, or even the entire Internet. The point is that the input can be infinitely big. The hashing algorithm [00:01:00] can be chosen depending on your needs and there are many publicly available hashing algorithms. The point is that the algorithm takes the infinite input of bits, applies some calculations to them, and outputs a finite number of bits. For example, 256 bits.

What can this hash be used for? A common usage for hashes today is to fingerprint files, also known as check zones. This means that a hash is used to verify that a file has not been [00:01:30] tampered with or modified in any way not intended by the author. If WikiLeaks, for example, publishes a set of files along with their MD5 hashes,...

Ellen Brown - Public Banks and the BlockchainEllen Brown - Public Banks and the Blockchain
00:40:16October 6, 2017, 12:15 pm
Ellen Brown - Public Banks and the Blockchain

Channel: Nexus Earth & Total View: 815

Add Date: October 6, 2017, 12:15 pm & Duration: 00:40:16

Likes: 17 | Dislike: 2


banking, banks, blockchain, finance, fintech, technology, database, transactions, bitcoin, btc, eth, wallstreet, wall, street, nyc, financial, company, business, investment, investor

Ellen Hodgson Brown is an American author, political candidate, attorney, public speaker, and advocate of alternative medicine and financial reform, most prominently public banking. Ellen is Founder & President of Public Bank Institute, a nonpartisan think tank devoted to the creation of publicly run banks. She is also the President of Third Millennium Press, and is the author of twelve books, including Web of Debt and The Public Bank Solution, as well as over 200 published articles. She has appeared on cable and network television, radio, and internet podcasts, including a discussion on the Fox Business Network concerning student loan debt with the Cato Institute's Neil McCluskey, a feature story on derivatives and debt on the Russian network RT, and the Thom Hartmann Show's "Conversations with Great Minds."

Recorded at the Nexus Conference in Aspen Colorado.
Thursday, September 22, 2017

New IPO Alert: First Ever Diversified Tech/Blockchain Company Goes Public!

Channel: The Daily & Total View: 762

Add Date: March 3, 2018, 10:00 pm & Duration: 00:30:52

Likes: 39 | Dislike: 14

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Bitcoin in BigQuery: blockchain analytics on public data - Allen Day- FOSSASIA 2018

Channel: FOSSASIA & Total View: 113

Add Date: March 23, 2018, 7:37 am & Duration: 00:37:47

Likes: 1 | Dislike: 0

Speaker: Allen Day, Science Advocate Google

Cryptocurrencies have captured the imagination of technologists, financiers, and economists. Perhaps even more intriguing are the long-term, diverse applications of the blockchain. By increasing transparency of cryptocurrency systems, the contained data becomes more accessible and useful.The Bitcoin blockchain data are now available for exploration with BigQuery. All historical data are in the big query-public-data:bitcoin_blockchain dataset, which updates every 10 minutes. We hope that by making the data more transparent, users of the data can gain a deeper understanding of how cryptocurrency systems function and how they might best be used for the benefit of society.

Room: Lecture Theatre
Track: Blochain
Date: Friday, 23rd March, 14:00 - 14:40

Event Page:
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Produced by Engineers.SG

Trent McConaghy (BigchainDB, IPDB): A Public Blockchain Database for the Planet / infoShare 2017

Channel: infoShare & Total View: 459

Add Date: June 20, 2017, 2:17 am & Duration: 00:27:37

Likes: 8 | Dislike: 0


infoShare, technology, conference, event, CEE, coding, developer, programming, database, blockchain, Trent McConaghy, BigchainDB

Trent McConaghy (BigchainDB, IPDB): A Public Blockchain Database for the Planet

This talk describes a shared public database for the internet, comprised of software, a network, and a foundation. The talk will cover how the technology relates to existing blockchain and database technology, and some specific applications that are being built on it in domains of identity, intellectual property, supply chain, and more.

The speech was given on 2017-05-18 at infoShare 2017 (Tech Stage) in Gdańsk.

Follow infoShare:

CommerceBlock ICO Review - Public Blockchain Infrastructure Company

Channel: Ian Balina & Total View: 6426

Add Date: December 20, 2017, 8:00 am & Duration: 00:19:09

Likes: 49 | Dislike: 27


ian balina, hacking the system, icos, initia coin offerings, token sales, token generation events, CommerceBlock ico, CommerceBlock initial coin offering, CommerceBlock token sale, CommerceBlock token generation event, CommerceBlock tge

In this video, I review CommerceBlock's upcoming initial coin offering.

In my point of view, this is an all star ICO. I am going to invest in this ICO.

Its my personal opinion, I am not giving biased recommendations. I am not a financial adviser. Discuss with your advisers before investing in ICOs.

We are building the first technology platform to bring a combination of trust minimized trade, decentralized contract execution, on-chain derivatives and asset backed token issuance to public blockchains.

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What is Blockchain? Explained in 2 minutes.What is Blockchain? Explained in 2 minutes.
00:02:20June 15, 2017, 7:58 pm
What is Blockchain? Explained in 2 minutes.

Channel: Shah Rishabh & Total View: 6330

Add Date: June 15, 2017, 7:58 pm & Duration: 00:02:20

Likes: 34 | Dislike: 1


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What is Blockchain? How does blockchain work, explained for dummies. What is Blockchain Technology and how does it affect our economy?

All a blockchain does is act as a public ledger that lists everything that goes on in the network in real-time. It's the tool that makes the whole thing possible.

The blockchain, and thus the ethereum network, is distributed across thousands of computers (or "nodes") around the world. It's also "Turing complete," which means that smart contracts on the blockchain can handle most computational functions, allowing them to be pretty sophisticated.

Join Binance now and start investing in crypto.

1) What is Bitcoin and why should you care?

2) What is Ethereum and how is it changing the world right now?

EOS Blockchain InfinityEOS Blockchain Infinity
00:05:12May 26, 2018, 1:14 am
EOS Blockchain Infinity

Channel: EOS San Diego & Total View: 1567

Add Date: May 26, 2018, 1:14 am & Duration: 00:05:12

Likes: 134 | Dislike: 1


Eos, blockchain

Recording public blockchain forever

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