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Public Blockchain - New Videos

Public Blockchain VS Consortium Blockchain VS Private Blockchain

Channel: B21 Block: Cryptocurrency & Blockchain Tutorials & Total View: 4377

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

Likes: 21 | Dislike: 5


blockchain, bitcoin, private blockchain, public blockchain, consortium blockchain, cryptocurrency, ethereum blockchain, bitcoin blockchain, cryptocurrency blockchain, altcoin

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: 3221

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

Likes: 13 | Dislike: 0


Blockchain, Hyperledger Fabric, blockchain, blockchain application, blockchain advanced, blockchain course, blockchain coding, blockchain demo, blockchain details, blockchain explanation, blockchain example, blockchain guide, blockchain how to, blockchain how it works, blockchain ibm, blockchain lecture, blockchain network, blockchain programming, blockchain explained, public vs private blockchain, public private difference blockchain

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

Channel: Matt Thomas & Total View: 15494

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

Likes: 182 | Dislike: 4


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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: Differences between public and private blockchains

Channel: Rise Global & Total View: 1024

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

Likes: 4 | Dislike: 0


fintech, blockchain, risevilnius, coingate, public, private

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

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

Channel: Crush Crypto & Total View: 3616

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

Likes: 158 | Dislike: 2


ico, ethereum, crushcrypto, crush crypto, initial coin offering, bitcoin, btc, eth, ether, icos, crypto, cryptocurrency, blockchain, zilliqa, zil, sharding

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...

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

Channel: Anders Brownworth & Total View: 40546

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

Likes: 1449 | Dislike: 6


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...

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

Channel: Epicenter & Total View: 2202

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

Likes: 34 | Dislike: 1


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...

ShipChain Public Token Sale - Mid January 2018 Blockchain Transport & Logistics

Channel: CryptoCoinShow & Total View: 5023

Add Date: January 4, 2018, 3:29 am & Duration: 00:03:04

Likes: 194 | Dislike: 2


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Their site:

In FinTech news this week ShipChain's public sale will start mid January 2018.

ShipChain’s Blockchain based transport and Logistics platform is an ideal example of how the Blockchain can disrupt an industry and bring about significant changes in this case using the Blockchain for Tracking and Tracing.

The ShipChain platform unifies shipment tracking on the Ethereum blockchain, using a sidechain to track individual encrypted geographic waypoints across each smart contract. With this system, the meaning of each cryptographic waypoint is only accessible for interpretation by the parties involved in the shipment itself. This gives shippers more visibility across their supply chain, and allows carriers to communincate with ease. 

Information about loads, geo waypoints, and other basic information is recorded and publicly validated within the sidechain. On the shipment's delivery and confirmation, the contract is completed and stored on the main blockchain.

Transactions on the blockchain for freight shipments will be paid using the ERC20 SHIP Token, and settled in tokens. The ShipChain Web platform will allow users to pay either directly in tokens they hold, or purchase tokens from ShipChain...

FNTC - François D'ORLEANS : Blockchain Privée, Blockchain public.

Channel: Thomas HERVET & Total View: 209

Add Date: May 2, 2016, 10:57 am & Duration: 00:02:17

Likes: 0 | Dislike: 0

François D'ORLEANS est co-fondateur de la start-up Stratumn.

Prises de vues et montage vidéo : Thomas Hervet

CommerceBlock ICO Review - Public Blockchain Infrastructure Company

Channel: Ian Balina & Total View: 6185

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

Likes: 47 | Dislike: 26


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.

Sign up for my favorite cryptocurrency exchange here:

Join My Telegram Mastermind: htto://








Cryptocurrency Review - Zilliqa (ZIL) - Future of Public Blockchain -Price Prediction - [Hindi/Urdu]

Channel: Digital Notice & Total View: 1417

Add Date: March 19, 2018, 2:30 am & Duration: 00:17:14

Likes: 45 | Dislike: 2


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

Zilliqa only recently completed their ICO and went live on some exchanges,
at the moment you can purchase Zilliqa on the following sites :



The core feature that makes Zilliqa scalable is sharding — dividing the network into several smaller component networks (called shards) capable of processing transactions in parallel. Additionally, this platform is geared toward allowing for secure and data-driven dApps, while meeting the scaling requirements for financial algorithms and machine learning.

While there are numerous public blockchain platforms available, Zilliqa’s scalability makes it a very important contribution. This comes largely from its ability to process more transactions each section when more mining nodes get added...

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

Channel: & Total View: 5844

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

Likes: 60 | 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...

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

Channel: Inchained & Total View: 402

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

Likes: 24 | Dislike: 0


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

Developments in Consortium Blockchain, Insights on Public Blockchain

Channel: LendIt Conference & Total View: 39

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

Likes: 0 | Dislike: 0


LangDi Fintech, Fintech, Conference, Shanghai, Keynote, 2017

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

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

Channel: Matt Thomas & Total View: 7927

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

Likes: 116 | Dislike: 2


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.

The Bitcoin Blockchain ExplainedThe Bitcoin Blockchain Explained
00:03:41July 6, 2016, 10:55 am
The Bitcoin Blockchain Explained

Channel: IEEE Spectrum & Total View: 96779

Add Date: July 6, 2016, 10:55 am & Duration: 00:03:41

Likes: 566 | Dislike: 52


bitcoin, bitcoin blockchain, blockchain, cryptography, technology, computing, cryptocurrency, editorial, IEEE, networks, peer to peer, ethereum, blockstream, IEEE Spectrum, Spectrum, explainer, bitcoin explained, blockchain explained

Forget the currency; it’s the protocol behind it that matters. Blockchains will mutate and take over everything we do on the Web.

Trusting strangers with your digital information may sound silly, but it’s actually a revolution in distributed computing. And one day, systems like Bitcoin could be the future of all secure digital transactions. Read more:

Blockchain & public administrationBlockchain & public administration
01:17:47March 17, 2016, 4:42 am
Blockchain & public administration

Channel: Barcelona Activa & Total View: 409

Add Date: March 17, 2016, 4:42 am & Duration: 01:17:47

Likes: 2 | Dislike: 0

Commons Collaborative Economies. 11-13 march, Barcelona.

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

Channel: Crypt0 & Total View: 6294

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

Likes: 179 | Dislike: 27


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

Channel: BlockchainBrad & Total View: 579

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:

Matrix. An Open Source Public Intelligent Blockchain Platform

Channel: Banderas Tv & Total View: 236

Add Date: January 15, 2018, 5:22 am & Duration: 00:02:44

Likes: 6 | Dislike: 2


Anton Chervochkov, Matrix, Ico Matrix, Ico Startup

Designed to be a new generation of blockchain, MATRIX leverages the latest AI techniques to refactor the blockchain architecture. MATRIX differentiates itself from previous blockchains by offering breakthrough technologies in building AI-enabled autonomous and self-optimizing blockchain networks, which feature multi-chain collaboration and decoupling of data and control blocks.
visit :
●Мой авторский канал посвящен рекомендациям, обзорам, презентациям проверенных стратегий заработка в Интернете без вложений,...

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: 603

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

Likes: 13 | Dislike: 1


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

Public Blockchain Companies: Opportunities and Strategies from the First Movers - GVA Research

Channel: GVA Research & Total View: 171

Add Date: January 27, 2018, 6:26 pm & Duration: 00:07:49

Likes: | Dislike:


blockchain, david garrity, zacks, cryptocurrency, btc, bitcoin, ethereum, ico, utility token

Snap Interactive and Zacks Investment Research Co-Host Successful Blockchain Investors Evening, "Public Blockchain Companies: Opportunities and Strategies from the First Movers" - GVA Research Panelist comments

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: 34892

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

Likes: 223 | Dislike: 43


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://






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

Channel: infoShare & Total View: 374

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

Likes: 4 | 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:

[한글자막] What is the difference between Private and Public blockchain? 프라이빗, 퍼블릭 블록체인 설명[Block Master]

Channel: Block Master & Total View: 328

Add Date: February 13, 2018, 6:46 am & Duration: 00:07:53

Likes: 15 | Dislike: 0


Private, Private Blockchain, Public Blockchain, Blockchain, Cryptocurrency, Virtual currency, Bitcoin, Etherium, difference

This is my explanation of what is Private and Public Blockchain.
I know, you guys are having some trouble to figure out what they are.
That's why I prepared for that. Just sit back and watch!

한글자막도 함께 첨부하였습니다!

앞으로도 더 많은 자료가 올라올 것이니 구독 부탁드려요!

Private and Public Key [BlockChain]Private and Public Key [BlockChain]
00:09:56February 13, 2017, 7:18 pm
Private and Public Key [BlockChain]

Channel: DLT Labs & Total View: 2730

Add Date: February 13, 2017, 7:18 pm & Duration: 00:09:56

Likes: 7 | Dislike: 2


Blockchain, Ethereum, Corda, Learn Blockchain, Bitcoin, Ether, Virtual Currency, Digital Currency, Private Key, Public Key

This video is part of BlockChain education programme running at AKG Engineering College, India by DLTEdTech.

Email us @ [email protected] for Corporate, Individual or Group BlockChain training.

Presented By Neeraj S Srivastava, Umesh Singh Kushwaha, Ajay Singh & Gaurav Agarwal

Sponsored by:

BlockChain technology is changing and evolving very rapidly. Presenter or the company is not responsible for the correctness of the information presented in the video in current time.

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

Channel: DG Lab EN & Total View: 983

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

Likes: 4 | 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...


Channel: Crypto Spark & Total View: 1942

Add Date: August 3, 2017, 2:17 pm & Duration: 00:06:48

Likes: 72 | Dislike: 3






What is the difference between Bitcoin and blockchain?

Channel: IBMBlockchain & Total View: 62710

Add Date: May 8, 2017, 1:57 pm & Duration: 00:02:43

Likes: 341 | Dislike: 27


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Unlike the bitcoin application which is open, public and anonymous making its security and trust questionable - blockchain for business is private, permissioned and running on smart contracts. Explore the key differences between bitcoin and blockchain in this video.

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

How are Public Initial Blockchain Offerings Different from ICOs?

Channel: NEWSBTC & Total View: 93

Add Date: December 13, 2017, 12:25 pm & Duration: 00:11:09

Likes: 3 | Dislike: 0


ICO, vanfunding, blockchain, bitcoin

NewsBTC recently got the opportunity to listen to David Lucatch at the recent VanFunding conference in Vancouver, Canada. David is the CEO and Chairman of Peagus FinTech, Inc., a full-service blockchain, technology, and token accelerator that supports enterprises with regulatory compliant public initial blockchain offerings (PIBCO). Watch the complete video:

Subscribe to NewsBTC | Click Here ►

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DISCLAIMER: The information provided in the video belongs to the speaker only. NewsBTC does not own any responsibility for the content, nor does it endorse the brands mentioned in this video.

"Blockchain Good, Bitcoin Bad" Triggers Me
00:07:07October 15, 2017, 12:50 pm
"Blockchain Good, Bitcoin Bad" Triggers Me

Channel: Crypto Investor & Total View: 8781

Add Date: October 15, 2017, 12:50 pm & Duration: 00:07:07

Likes: 436 | Dislike: 15


Blockchain, Bitcoin, Cryptocurrency, Blockchain Good Bitcoin Bad Triggers Me, Blockchain Bitcoin, Yes blockchain No Bitcoin, Public Blockchain, Private Blockchain, Permissioned blockchain, Jamie Dimon Blockchain, Jamie Dimon Bitcoin, Is Bitcoin Necessary, Blockchain Shared Database, Will Bitcoin Last, Blockchain or Bitcoin, Bitcoin vs Blockchain, Does blockchain need bitcoin, Why is Bitcoin needed, Peter Schiff Bitcoin, Crypto Investor, Investing, Finance, Crypto

Blockchain is good, Bitcoin is bad. How many times have you heard this echo chamber? It genuinely tilts me, so thought I'd make a video on it. In general, many of the people who tout this are talking about private blockchains, not public. Private blockchains are essentially upgraded distributed databases, and even then there are tradeoffs. While it may increase efficiencies overall, the opportunity is nowhere near as large or revolutionary as public blockchain is.

Bitcoin is the best implementation of such technology due to the size of its network. While mining pools are causes for concern (I'm looking at you Bitmain), Bitcoin has proven to be fairly resilient to central control. It is censorship resistant. It is not 100% immutable in the sense that one could create a longer chain that replaces another, but other than this fringe scenario, the erasure or reversal of transactions is not possible. As such, it is truly trustless. Private blockchains cannot achieve this. While they will provide value to the world, it won't be nearly as much value that public blockchains do in my opinion. Let me know yours.

Steemit Post for this video:

If you want to...

What is Hashing & Digital Signature in The Blockchain?

Channel: Blockgeeks & Total View: 12121

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

Likes: 123 | 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,...

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