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Hyperledger Composer Playground - Create and Test a Blockchain Network
 
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Hyperledger Composer is a tool for quickly building blockchain business networks and prototyping blockchain applications. In this video, learn how to quickly model and test a blockchain business network based on the Perishable Goods Network template in Playground. ******* LINKS: * Hyperledger Composer Tutorial Part 1 - https://www.ibm.com/developerworks/cloud/library/cl-model-test-your-blockchain-network-with-hyperledger-composer-playground/index.html
Views: 5065 IBM Developer
Blockchain Explorer Tutorial (bitcoin, ethereum, NEM) For Begginers.
 
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In this tutorial, I am explaining how to use the blockchain explorers of the popular blockchains (bitcoin, ethereum, nem) and what is the difference between them. I am showing how to check the transaction based on transaction hash, account address (recipient/sender), block number. Also, I am explaining how to set up a fee on Ethereum based on the current gas price. How to check the gas price. And I am explaining how to check the fees on the bitcoin blockchain. It's all explained in this video! Thank you for watching, if you have questions, proposals, feel free to contact me: @tongokongo on telegram and NEM forum or in the comment section. ************************************************************************************************************* Links: Ethereum Blockchain Explorer: https://etherscan.io/ Bitcoin Blockchain Explorer: https://blockexplorer.com/ NEM Blockchain Explorers: http://chain.nem.ninja/#/blocks/0 http://explorer.ournem.com/#/blocklist Ethereum fees (gas price): https://ethgasstation.info/ Bitcoin fees: https://bitcoinfees.earn.com/ Social: Steemit: https://steemit.com/@tongokongo Twitter: https://twitter.com/cryptoTonyNEM If you find it useful, please shoot me some NEM! NAWNNR-2SEDKU-YOBSKU-Q3VLZE-7WQW3D-YJ6UTE-SXOJ
Views: 988 NEM with Tony
Build a Blockchain Explorer with Quiknode.io | Ethereum dApp Tutorial
 
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► SUBSCRIBE TO THIS CHANNEL ◄ For more videos on how to build decentralized applications on The Ethereum Blockchain: https://www.youtube.com/channel/UCY0xL8V6NzzFcwzHCgB8orQ?sub_confirmation=1 Quiknode Website: https://quiknode.io?tap_a=22610-7a7484&tap_s=246104-d9b691 Quiknode Twitter: https://twitter.com/QuikNode Quiknode Medium: https://medium.com/@quiknode DOWNLOAD FREE VIDEO COURSES: http://www.dappuniversity.com/free-download The Ultimate Ethereum Dapp Tutorial http://www.dappuniversity.com/articles/the-ultimate-ethereum-dapp-tutorial Donate Ether to the channel: 0x39C7BC5496f4eaaa1fF75d88E079C22f0519E7b9 Website: http://dappuniversity.com/ Follow me on Twitter (@DappUniversity): https://twitter.com/DappUniversity Email me: [email protected]
Views: 934 Dapp University
hyperledger explorer
 
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Hyperledger explorer
How to activate a blockchain network with IBM Blockchain Platform
 
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This short demo shows how you can quickly and easily develop, govern and operate a blockchain application using IBM Blockchain Platform. LINKS What is blockchain?: https://ibm.co/2OgMeaC Get a free guide to getting started with blockchain: https://ibm.co/2LnPvHk IBM Blockchain Platform technical overview: https://ibm.co/2Nj1bv4 IBM Blockchain Platform Starter Plan – now in GA: https://ibm.co/2NM9hZT Develop. Govern. Operate a blockchain network: https://ibm.co/2OkQ8PF #Blockchain #Technology #Coding
Views: 12738 IBMBlockchain
100tx/s Transaction test on mijin's private blockchain network
 
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Testing mijin's private blockchain network with 5 nodes Stable at 100 transactions / second. mijinのプライベートブロックチェーンを5つのノードでテスト中。 すでに、秒間100トランザクションでも安定した動作。
Views: 599 mijin
Hyperledger Fabric blockchain explorer 1.0.1
 
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Hyperledger Explorer is a simple, powerful, easy-to-use, highly maintainable, open source browser for viewing activity on the underlying blockchain network. github:https://github.com/hyperledger/blockchain-explorer 区块链兄弟:http://www.blockchainbrother.com/
Views: 553 区块链兄弟
Hyperledger Explorer Demo
 
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A quick look at Hyperledger Explorer to view the Blockchain information on a Hyperledger Fabric network created using Hyperledger Composer sample network
Views: 3687 Jonathan Declan Tan
How to Read a Blockchain Explorer
 
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Hey everyone! Ecurrencyhodler here. You can call me E for short. "Click More" for timestamps. Don't forget to hit the thumbsup sign and subscribe! **Referral Links** -https://www.coinbase.com/join/52e373d992155a7fa4000021 (You and I both get $10 in btc if you sign up!) -https://www.binance.com/?ref=22782506 (For trading various altcoins) -https://www.ledgerwallet.com/r/278c (For Ledger Nano S's) -https://shop.trezor.io?a=uUoaA53B7ifp (For Trezor) **Timestamps** 0:10 Intro 0:54 Blockcypher 6:56 Advanced Details for Blockcypher (Nonce/Merkle Root/Difficulty/Version) 11:39 Explorer.litecoin.net 13:01 Block Details (Block Hash/CoinAge) 19:53 Breaking down tracking transactions in blocks. (Change Addresses/Batching or Pay to Many) 22:15 AMA: Litecoin vs. Bitcoin Cash 27:40 Blocksize and Block propagation 29:48 Average fee to open a Lightning Network Channel 30:37 Fee market and life after block rewards 32:15 Will ICO's be launched on top of Litecoin this year? 33:08 What's the relationship between Litecoin and Bitcoin? 34:50 Bech32 addresses (The wrong image came up from my streaming program) Here's an example of a bech32 segwit address: ltc1qf425yktgv8g6dnpgzxpwzmqnsz4fhqmp8dsdds 38:06 Litecoin Price Talk, How to Market Litecoin, etc. **Relevant Links** -https://live.blockcypher.com/ltc -http://explorer.litecoin.net/ -bech32: https://www.reddit.com/r/Bitcoin/comments/62fydd/pieter_wuille_lecture_on_new_bech32_address_format/ -The case for LTC via Atomic Swaps: https://medium.com/the-litecoin-school-of-crypto/the-case-for-litecoin-via-atomic-swaps-e825b0ec078 **L.S.C. Donation Addresses** LTC: LgGHRsbYHs93gKttBMehLzth3xDAU3tCSZ BTC: 3HFCMjr6xQKSfmU7wCPzrZJVvgwrdf7Qzd (Segwit address. Legacy and Segwit chains accepted)
Views: 422 theliteschool
The Pillar Wallet's BCX (Blockchain Explorer)
 
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#PillarWallet #PillarProject #Blockchain ✅ Subscribe to our channel: https://goo.gl/qxm8jk The Pillar Wallet is all about efficiency and ease-of-use. That's why having our own integrated Blockchain Explorer - or BCX - is so important. That way, the Wallet's users won't have to rely on 3rd-party tools to check the status of their transactions. What's more, the Pillar Wallet's BCX can also serve as an invaluable tool for anyone developing on top of the Pillar Platform. Watch this video and learn more about this core-feature of the world's best wallet! 🌐 Learn more at https://pillarproject.io/ 🎥 Check out our latest video: https://goo.gl/urQrex 📬 Subscribe to our newsletter: http://eepurl.com/di8X2L Follow Pillar's social channels ⏬ 💬 MatterMost: https://goo.gl/9FU9yu 🐦 Twitter: https://goo.gl/BFR39G 💻 Medium: https://goo.gl/UmWra4 📈 BitcoinTalk: https://goo.gl/eZnB2V 🤖 Reddit: https://goo.gl/1C9pJ2 🐱 GitHub: https://goo.gl/cNHi5B 💬 Telegram: https://goo.gl/dZnrdp
Views: 591 Pillar Project
Using Hyperledger Explorer with a Fabric Network (in Ubuntu) narrated
 
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I speak really slow so i'm warning you in advance to put me at 1.5x
Views: 2814 D An
How to Read an Ethereum Blockchain Explorer Receipt
 
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In this video, BlockchainWTF's Jeremy Cogan explains how to read a receipt on a blockchain explorer. He'll cover the different capabilities of a blockchain explorer, how to read a receipt, and any associates fees that come with these transactions. KIN ICO or NO episode: https://blockchain.wtf/2017/09/series/ico-or-no/episode-11-kin/ Reach out and sign up for our mailing list at: https://blockchain.wtf/contact-us/ Don't worry, we don't bite! Let us know what you think below in the comments section below! * Twitter: https://twitter.com/blockchainwtf * Facebook: https://facebook.com/blockchainwtf * Website: https://blockchain.wtf Reach out and sign up for our mailing list at: https://blockchain.wtf/contact-us/
Views: 1870 Blockchain WTF
Setting up a Block Explorer for your coin
 
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This follow up tutorial goes over the process of setting up an Iquidus block explorer for your coin. I didn't mention it during the video, but in case it isn't obvious you can use the instance that the block explorer talks to as a bootstrapping node and kill two birds with one stone. Funcoin Block Explorer: http://159.65.188.63:8000/ Pastebin: https://pastebin.com/SEYVXH2C Digital ocean (VPS) referral: https://m.do.co/c/415d7553914b Iquidus github repo: https://github.com/iquidus/explorer Just like in the last video, shameless donation addresses (no plz youtube is about to demonetize me): BTC: 1JBV21Yfbj87mswD1yhoGBebWaC7jo1C7f BCH: qp3euvtd2nr9naz5dtpx5u0ecfn3093u95k8svkhzl LTC: LMwba61izt1rHPzvCpTMbuVMUVdtftrtHs ETH: 0xE8284a769dB68a9C91Bcacc2F0e9D0C4C108b26e
Views: 12952 Aqua
Multi Machine Hyperledger Fabric/Composer/Explorer (Orgs in separate machines)
 
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Fabric 1.0.4 + Composer 0.16.6 + Blockchain Explorer 0.3.0 2 orgs each in separate machines with 3 peers. Instructions and repo at: https://github.com/InflatibleYoshi/fabric-dev-servers-multipeer
Views: 1292 D An
How to check wallet or transaction status on blockexplorer
 
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You can check it out here: https://prohashing.com or also here http://explorer.deeponion.org
Views: 100 DeepOnion Italia
What is a block explorer?
 
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One of the most frequently asked questions I receive from Blockchain and Bitcoin Fundamentals online students is "What is a block explorer?" and as a follow-up "How do I use one?" In this informative video, I describe what a block explorer is and I take viewers on a trip through multiple block explorers as I show how you can use one to look into the blockchains of multiple cryptocurrencies. George Levy is an instructor at Blockchain Institute of Technology, and the author of the best selling online courses Blockchain and Bitcoin Fundamentals, Cryptocurrency Fundamentals, Bitcoin Advanced Level: Transactions and multiple other courses. Sign up to receive George Levy's FREE email newsletter and a video email course on blockchain, Bitcoin and cryptocurrency ($47 Value yours free) at: https://GeorgeLevy.com/Free Subscribe to this channel to stay up to date on new educational videos published each Thursday! Follow George Levy at the following links: https://Twitter.com/GeorgeLevy https://Facebook.com/GeorgeLevyBlockchain (Official Facebook Page) Special offer for George Levy channel viewers, open a new Bitcoin wallet for Free and get $10 bonus in Bitcoin at: https://blockchaininformer.com/btcwallet
Views: 2693 George Levy
Build and Deploy a Blockchain Web App With Hyperledger Fabric & Hyperledger Composer
 
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Have you ever wanted to get into blockchain development, but haven’t found a good place to start? In this talk, we will explore a use case of blockchain and show you how it can be applied in a real-world scenario. First, we will cover the basics of blockchain and Hyperledger Fabric by building a simple blockchain application. We will explore Hyperledger Composer and use it to model a business network that we will then deploy onto a Hyperledger Fabric network. Lastly, we will interact with the application and check the details of the transactions using the IBM Cloud blockchain service. EVENT: Full Stack Fest 2018 SPEAKER: Horea Porutiu PERMISSIONS: Conference Organizer provided Coding Tech with the permission to republish this video. CREDITS: Original video source: https://www.youtube.com/watch?v=v2WiqQs_JAs&t=105s
Views: 7414 Coding Tech
What is Lisk Core? Explore Lisk's Peer to Peer Network
 
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In short, Lisk Core is the codebase of the rules established by the Lisk Protocol. It is a mandatory program to be executed on every node in the Lisk network, and guarantees the validity of the data contained within the Lisk blockchain and the new data being written on it. Timestamps: 0:10 - 1:58 What is the client-server relationship? 1:59 - 2:52 How does a server become a Lisk node? 2:53 - 3:42 Who can run a node? 3:43 - 4:01 Why would someone set up their own node? 4:02 - 4:20 What is Lisk Core? Thanks for watching! Lisk makes it easy for developers to build and deploy blockchain applications in JavaScript. Learn about the leading platform for world-changing dapps at https://lisk.io/products. 👩‍🎓👨‍🎓Learn blockchain fast at the Lisk Academy: https://lisk.io/academy 🗞Read our latest news on the Lisk Blog: https://blog.lisk.io/ 💼 Check our current job openings! https://angel.co/lisk 👚👕 Lisk t-shirts now available: https://merch.lisk.io/ 👩‍🚀👨‍🚀 Meet the team: https://lisk.io/team 🔒 Store your LSK in our official wallet: https://github.com/LiskHQ/lisk-nano/r... 🔎 View our blockchain explorer: https://explorer.lisk.io/ ⚙️ Get the all new Lisk Hub: https://lisk.io/hub/index.html#/ 🎥 For media inquiries, please email us at press [at] lisk [dot] io. 👫Join our community channels: Reddit: http://reddit.com/r/lisk Twitter: http://twitter.com/liskhq Telegram: https://t.me/Lisk_HQ Lisk.chat: https://lisk.chat/ Instagram: http://instagram.com/liskhq Facebook: http://facebook.com/liskhq LinkedIn: https://www.linkedin.com/company/lisk/ 👨‍💻👩‍💻 For developers: GitHub: https://github.com/LiskHQ Gitter: https://gitter.im/LiskHQ/lisk Documentation: https://lisk.io/documentation
Views: 5604 Lisk
Hyperledger Composer - Advanced Blockchain Network
 
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Hyperledger Composer allows you to quickly build and test Blockchain applications. In this video I'll show you how to put together everything you've learned so far in the tutorial This video accompanies Part 3 of the Hyperledger Composer Tutorial series from IBM developerWorks A link to the tutorial is in the video description Here's what I'll show you in this video: -Clone the iot-perishable-network from GitHub - Make changes to the iot-perishable-network model - Add chaincode for new transaction I add to the model - Modify the network's permissions to restrict access based on participant - Then I'll add Cucumber tests to unit test the network - Build the network and run the unit tests - Deploy the network your local Fabric - Issue IDs for all the participants in the network, and - Run transactions through the Command Line Interface. I'll work with the iot-perishable-network in this video. ************* LINKS: * GitHub repository - https://github.com/makotogo/developerWorks * Composer Development Tools - https://hyperledger.github.io/composer/installing/development-tools.html ATTRIBUTIONS: NONE
Views: 2523 IBM Developer
Blockchain business network example for an auto auction
 
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Looking at an example of business network to put the concepts into perspective. An overview where the assets, participants and transactions would take place in a model. Presented By Dan Selman | @danielselman LINKS What is blockchain?: https://ibm.co/2OugP4t Get a free guide to getting started with blockchain: https://ibm.co/2v3Gysq IBM Blockchain Platform technical overview: https://ibm.co/2oG8vD7 IBM Blockchain Platform Starter Plan – now in GA: https://ibm.co/2NY3mRD Develop. Govern. Operate a blockchain network: https://ibm.co/2AoToXr #Blockchain #Technology #Coding
Views: 1577 IBMBlockchain
How to Build a Blockchain
 
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Let’s look at how to build a blockchain. Blockchain is used by the cryptocurrency Bitcoin. Although Bitcoin’s price has been growing rapidly, Bitcoin is a very volatile investment. The incentives that blockchain brings to Bitcoin is that blockchain allows for a decentralized collection of data whose integrity is easily verifiable, and the data itself is immutable. In this tutorial, we are going to look at how to build a blockchain using JavaScript. You could also build a blockchain in python or java. Text Tutorial: https://www.davebennett.tech/javascript-blockchain/ Proof of Work: https://www.davebennett.tech/javascript-hashcash-proof-work/ ------------------------------------- SUBSCRIBE FOR MORE: https://goo.gl/29YhyB Twitter: https://twitter.com/_davebennett Instagram: https://www.instagram.com/davebben/ Facebook: https://www.facebook.com/davebennetttech/ Website: https://www.davebennett.tech/
Views: 10558 Dave Bennett
Theta Network - Test Channel Walkthrough
 
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Tim Li (Theta Labs Head of Platform) walks us through the Theta Test Channel on SLIVER.tv.
Views: 986 Theta Labs
How To Send Ethereum Transactions
 
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How To Send Ethereum Transactions http:///www.Blockgeeks.com You can send transactions between any two accounts on Ethereum. Typically, these transactions occur in the production environment called the Mainnet but there’s also a few test networks available for us to use. Test networks are useful when you want to use Ethereum without having to pay real money. Some of the popular test nets today are Ropsten, Rinkeby and Kovan. Properly functioning test environments are a critical part of the DAPP development process. Ropsten, which is the main public network and uses proof of work has become prone to spammy transactions and slowness. In response to this, two separate community efforts led to the creation of new test nets, Rinkeby and Kovan. These networks require authenticating using your GitHub account and the transactions are validated using proof of authority meaning there are a small set of validators. Let’s try to send a transaction over the Rinkeby test net. We’ll use a Chrome plugin called MetaMask to connect to the network and make transactions. I highly recommend getting MetaMask since it makes interacting with the Ethereum blockchain extremely easy. First, we’ll change the network to Rinkeby to make sure we’re using test ether and not real ether. Let’s create two test accounts and label them. To get test ether into these accounts, we need to use a tool called a Faucet which is just a website where you enter your address and it sends you some test ether. Let’s copy the address for one of our accounts. When we click the buy button, we get redirected to the Faucet. Since we’re connected to Rinkeby, we need to use our GitHub credentials to get the test ether. To do this, go to gist.github.com, create a new Gist with a single line that contains the address you just copied and publish it. You then copy the Gist URL and paste it into the Faucet. In a few short moments, we can see that we have updated the balance in our account. The reason the balance took a few seconds to update is because we need to wait for the transaction to get mined on the Rinkeby network. Now, let’s move this test ether between our accounts. First, let’s copy the address of our receiving account. Then, we click the send button, paste the address, as well as the amount and hit submit. Once we submit the transaction, we’re provided a transaction hash which we can use to reference this transaction. If we use an Ethereum blockchain explorer like Etherscan, we can get more details about this transaction. Since we made the transaction on the Rinkeby network, we have to use rinkeby.etherscan.io and we can see that the transaction is still waiting to be mined. Once it is successfully mined, we’ll see a block number assigned to the transaction. We can then verify the updated account balances using MetaMask. To learn more about Ethereum, check out our online guides and courses at blockgeeks.com. Thanks for watching and see you next time.
Views: 4986 Blockgeeks
How to create a private ethereum network
 
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https://prabhatsharma.in When planning to write smart contracts you will realize that you are going to spend real ether if you are on the main ethereum network which will cost you real ethers. There is a way around that by creating a private network on various platforms : Mac: ~/Library/Ethereum Linux: ~/.ethereum Windows: %APPDATA%\Ethereum do all your development and testing on private-net. Once you think you are good with your smart code contract you can then deploy it to the main network.
Views: 20662 Prabhat Sharma
Blockchain - How To Verify A Bitcoin Transaction And Get Your Hash ID
 
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For more tips like these visit http://bodymindsuccess.com/bitcoin or subscribe to our channel
Views: 50866 Crypto Currency Wealth
Blockchain tutorial 25: Testnet and faucets
 
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This is part 25 of the Blockchain tutorial explaining what a testnet is and what faucets are. This tutorial explains the following: - what a testnet is - what the purpose is of a testnet - show you a Bitcoin testnet block explorer - show you an Ethereum testnet block explorer - what a Bitcoin testnet address looks like - what a faucet is 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: 4164 Mobilefish.com
Hyperledger Fabric 1.1 with Composer and Explorer
 
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EDIT: Hyperledger Explorer was updated 3 days ago which means that the instructions below need to be updated. I'll update them and put a new pastebin but for now after pulling blockchain-explorer, git checkout release 3.1 to get the old version of explorer. In this tutorial video, I install Ubuntu 18.04 first and then install the Hyperledger Fabric 1.1 + Composer 0.19.x + Blockchain Explorer components. Again put me on 1.5x speed. Some might be wondering why I'm not using Ubuntu 16.04, and that's because it straight up doesn't work due to grpc. Here's a text version of the instruction i used in a pastebin: https://pastebin.com/eqpqyVmK
Views: 1753 D An
Block Explorer Vs Website Steemit Brief Introduction | Hindi
 
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A block explorer allows you to search and navigate through the block chain. Using a block explorer you can check the balance of different Bitcoin public addresses, track coin transfer histories watch how many confirmations a transaction has and get a wide variety of statistics about the network such as the current hash rate and more. For each block chain there is a different block explorer – so for example you won’t be able to user a Bitcoin block explorer in order to examine Litecoin’s blockchain. What can you do with a block explorer ? Usually the block explorer software will supply some or more of the following: 1. a list of a chain’s recent blocks 2. transactions in a given block 3. links to the previous and next transaction involving each input and output 4. a list of all transactions involving a given address 5. current and historical address balances 6. a way to search for blocks, transactions, and addresses Here’s an example of how to examine a public Bitcoin address using the most popular block explorer today blockchain.info. I just paste the public address into the block explorer and now I can see how many Bitcoins this wallet holds and its recent transactions. If I click on a specific transaction a can see details about this transaction such as when it was received, the number of confirmations it has or when it is estimated to be confirmed, the inputs and outputs of this transaction and how many Bitcoins were transferred. A list of 8 different Bitcoin block explorers Blockchain.info blockr.io Blockexplorer.com Insight.is Blocktrail BitcoinChain What is Steemit ? Steemit is a blogging and social networking website on top of the Steem blockchain database. The Steem blockchain produces Steem and Steem Dollars which are tradeable tokens users obtain for posting, discovering, and commenting on interesting content. Steemit, Inc is a privately held company based in New York City and headquartered in Virginia. The company was founded by Ned Scott and Dan Larimer, creator of BitShares. www.nodearts.com
Views: 49 info nodearts
What is a Bitcoin Block Explorer
 
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A short video explaining what a block explorer is. For the complete text guide visit: http://bit.ly/2DD1vQT Join our 7-day Bitcoin crash course absolutely free: http://bit.ly/2pB4X5B Learn ANYTHING about Bitcoin and cryptocurrencies: http://bit.ly/2BVbxeF Get the latest news and prices on your phone: iOS - https://apple.co/2yf02LJ Android - http://bit.ly/2NrMVw2 See anything we haven't covered? Leave us a comment in the comment section below
Views: 2122 99Bitcoins
How to Build an Ethereum Blockchain Explorer Dapp
 
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How to Build an Ethereum Blockchain Explorer Dapp - https://blockgeeks.com/ In this lesson we’re going to see how to build a simple dapp using the Ethereum blockchain as our backend We’re going to build a blockchain explorer, kind of like etherscan, but we’re only going to display the last 10 blocks on the chain. To do this, we’ll use an open-source framework called Ethers.io to quickly develop and deploy our dapp. Ethers comes with command line tools which are available as a node module and can be installed using npm install -g ethers-cli. Let’s install to our global context since we’ll probably use this across multiple projects. You can read more about Ethers by checking out their awesome documentation online. Ethers.io makes it easy to create dapps by allowing you to quickly run them locally during development. One of the things I really like is that it removes the need to have a copy of the blockchain, so we don’t need to run a local geth node for example in order to build dapps. Another thing I really like is that it comes with a free hosting service called ethers.space, where we can store some of our static files for free. We’ll see how to use this later, but for now we’ll just keep everything local. The first step is to create a new project folder for our dapp and navigate into it. We’ll call our project, explorer. To use the ethers.space hosting, we need to have an Ethereum account and we can create one by calling ethers-build init, which generates a keyfile for us called account.json. Make sure you use a strong password when encrypting your private key. Your keyfiles never leave your web browser’s local storage when using Ethers Now let’s start by building our front-end UI. We can create a new HTML file called index.html and define a head and body for our document. Let’s put hello world in the body, and we’ll also give our page a title. We can quickly spin up a local web server to serve this index.html by using the command ethers-build serve. By default, Ethers will point to the mainnet, but we can also pass the —testnet option to point to ropsten. This prints out a local http address where we can see our UI. Let’s paste this URL into a browser. We get some sort of view rendered, but this isn’t like anything we wrote in our HTML. We keep seeing this ‘loading application’ spinner because we haven’t included the ethers-app javascript in our document. Let’s add a script tag to the end of our body and link it to the minified ethers-app javascript. Now when we reload the page in the browser, we are at least able to see our Hello World message meaning our application is loading. There’s also a dashboard across the top of the page, but we didn’t actually write any of this in our index.html. This view is inserted by the Ethers.io container running locally. Through the Ethers.io container, we can serve multiple apps by passing the application URL at the end of the fragment. The part after the hashtag tells the Ethers.io container which application to load. Typically we would have to run the Ethers.io container over https, but it allows for running over http for development. The Ethers.io container provides a bunch of other tools for us like a messenger, a testnet faucet and even its own blockchain explorer, but we won’t get into these features right now. Let’s try displaying the last 10 blocks from the blockchain in our UI. We can replace our hello world text with an HTML table element that defines 3 column headers. We’ll print out each block’s number, hash and timestamp of creation. Let’s give our table an ID so we can reference it later in javascript and we’ll also set the width to 100% To read more, visit https://blockgeeks.com/
Views: 7914 Blockgeeks
Create a customer Loyalty Program with Blockchain
 
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Create a customer loyalty program with blockchain. Use Hyperledger Composer API and Node.js to connect program members and partners on one network.
Views: 2474 IBM Developer
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: 2307440 Simply Explained - Savjee
Blockchain Explorer | How To Determine If A Cryptocurrency Is Real
 
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https://www.freecryptominicourse.com | Use the link to the left to learn how and why bitcoin & cryptocurrency are changing the world and how you can massively profit from them. Check out the Blockchain Explorer to determine if the coin you are researching is a real cryptocurrency with a 'public ledger' blockchain behind it by using the following link: https://chainz.cryptoid.info/ In this video I explain how you can use a certain website to gain access to the 'Blockchain Explorer' and determine if a coin you are researching is actually a real cryptocurrency. If you are looking into putting money into a coin, you should determine that it has a public ledger blockchain first, because if it doesn't, it is not a real and you will want to stay very far away from it! It pays to to do your due diligence before getting involved with any cryptocurrency. Do your research! To read the full blog post about using the Blockchain Explorer to determine if a cryptocurrency is real, use the following link: https://www.whatisacryptocurrency.com/blockchain-explorer For more information, news and education on cryptocurrency visit: https://www.whatisacryptocurrency.com You can also read my blog post 'What Is A Cryptocurrency' for further insight into the history of crypto and where it's going with the second generation technology: https://www.meetcalebwright.com/cryptocurrency/what-is-cryptocurrency/ I wrote a follow up blog post here as well: http://www.meetcalebwright.com/cryptocurrency/what-is-a-cryptocurrency/ Have questions about Cryptocurrency? Wonder how you can start profiting with it and set yourself up to become one of the next cryptocurrency millionaires like many of us already are? I'd be happy to talk to you about that and answer your questions! Video Transcript: The Blockchain Explorer. This is the de facto way to determine if a coin that you are looking at is actually a real cryptocurrency. Caleb Wright here with What Is A Cryptocurrency dot com. And today I have decided to shoot a little video to help all of you out there who are researching the cryptocurrency industry, and to give you a tip that will keep you safe with how that you use your money when you decide to put it into a cryptocurrency coin. Make sure that your coin, or the coin that you are looking at and considering getting involved with is actually a real cryptocurrency that has a blockchain behind it. Because there are actually a bunch of companies out there who are promoting coins that they are actually distributing completely in house, which is illegal with the Securities and Exchanges Commission. And they seem to completely miss the point that a cryptocurrency is not just a digital currency, it's not just a digital unit. It has to have a blockchain technology behind it. Which is a public ledger which is accessible via the internet, by the public, hence the 'public ledger' name. And you can basically have access to all of the wallets and all the transactions that have happened within the blockchain of that cryptocurrency. So basically if a digital currency does not have a blockchain, it is not a cryptocurrency and you want to stay very far away from putting money into it until they actually get a cryptocurrency blockchain behind it and get it onto the publicly traded exchanges. So there is a website here that you can visit, it's called http://chainz.cryptoid.info that's c h a i n z dot c r y p t o i d dot info. And this website gives you access to the blockchain explorer of all the cryptocurrencies that are legit that are out there. As you can see we have a few of the popular coins right here at the top of the list. Litecoin and Capricoin and Rubycoin for example. And so you can also filter the list using this search bar up here, you can type in a specific coin that you are looking for, so you don't have to browse through this very long list of coins. Okay, then you can quickly determine if the coin you are looking at is real. Now to show you how you can navigate through this, and like I was telling you before how you can see any wallet that is in the blockchain and the transactions that have been made with these wallets. All you have to do is click on the coin. So I'm going to click Capricoin right here... (I couldn't fit the whole transcript, so please watch the video for the rest!) https://youtu.be/LnIytbmVOFY
hyperledger fabric 环境搭建之blockchain explorer 3.7
 
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hyperledger fabric 环境搭建之blockchain explorer 3.7
Views: 79 和飞
Cryptography: Crash Course Computer Science #33
 
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Today we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt and decrypt private correspondence. This proved especially critical during World War II as Allan Turing and his team at Bletchley Park attempted to decrypt messages from Nazi Enigma machines, and this need has only grown as more and more information sensitive tasks are completed on our computers. So today, we’re going to walk you through some common encryption techniques such as the Advanced Encryption Standard (AES), Diffie-Hellman Key Exchange, and RSA which are employed to keep your information safe, private, and secure. Note: In October of 2017, researchers released a viable hack against WPA2, known as KRACK Attack, which uses AES to ensure secure communication between computers and network routers. The problem isn't with AES, which is provably secure, but with the communication protocol between router and computer. In order to set up secure communication, the computer and router have to agree through what's called a "handshake". If this handshake is interrupted in just the right way, an attacker can cause the handshake to fault to an insecure state and reveal critical information which makes the connection insecure. As is often the case with these situations, the problem is with an implementation, not the secure algorithm itself. Our friends over at Computerphile have a great video on the topic: https://www.youtube.com/watch?v=mYtvjijATa4 Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Carrie Anne? https://about.me/carrieannephilbin The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Want to find Crash Course elsewhere on the internet? Facebook - https://www.facebook.com/YouTubeCrash... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 179067 CrashCourse
Cardano TN05 Features | IOHK Engineering partner.
 
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Demonstration of Testnet 0.5, the test version of the Cardano network. Introduction from Charles Hoskinson, IOHK CEO. - Please see all links in this description - 0:00 Introduction and general update on the project. - Charles Hoskinson CHIEF EXECUTIVE OFFICER + FOUNDER https://iohk.io/team/charles-hoskinson/ 21:31 General update on TN0.5 & MainNet builds. - Duncan Coutts, PhD INT DIRECTOR OF ENGINEERING + TEAM WELL TYPED https://iohk.io/team/duncan-coutts/ 25:15 New features for the Daedalus platform - Darko Mijić CROSS-PLATFORM DEVELOPER + TEAM DEADALUS MANAGER https://iohk.io/team/darko-mijic/ 40:50 A look at the Cardano Block Explorer - Ante Kegalj CARDANO SL DEVELOPER + TEAM PURESCRIPT MANAGER https://iohk.io/team/ante-kegalj/ 47:12 Questions & Answers from the community. - Tamara Haasen CORPORATE CULTURE OFFICER https://iohk.io/team/tamara-haasen/ ------------- The Cardano Portfolio Cardano Blockchain Explorer An open source block explorer for the Cardano project https://cardanoexplorer.com Cardano Launch Final development steps for main net launch https://cardanolaunch.com Cardano Documentation Full technical documentation of the project https://cardanodocs.com Cardano Roadmap Development path of the Cardano project https://cardanoroadmap.com Why Cardano The philosophy behind the project https://whycardano.com Daedalus Platform Open source platform https://daedaluswallet.io Cardano Testnet Experiment with with the test net https://tada.iohk.io The Cardano Foundation Supervisory and educational body for the Cardano Protocol https://cardanofoundation.org Cardano Foundation YouTube All the latest videos & tutorials https://www.youtube.com/channel/UCbQ9vGfezru1YRI1zDCtTGg Cardano Foundation Follow the Foundation https://twitter.com/CardanoStiftung Cardano Slack Join the conversation https://cardano.herokuapp.com Cardano reddit Join the conversation https://www.reddit.com/r/cardano/ IOHK Development partner https://iohk.io IOHK blog Read about the latest technology advancements https://iohk.io/blog/ IOHK YouTube Watch Input Output https://www.youtube.com/c/iohkio
Views: 10273 IOHK
Lisk Core in 1 minute
 
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Lisk Core is a tool for advanced technical users who want to access Lisk’s main network blockchain data, secure the network infrastructure or attain delegate forging access. Thanks for watching! Lisk makes it easy for developers to build and deploy blockchain applications in JavaScript. Learn about the leading platform for world-changing dapps at https://lisk.io/products. 👩‍🎓👨‍🎓Learn blockchain fast at the Lisk Academy: https://lisk.io/academy 🗞Read our latest news on the Lisk Blog: https://blog.lisk.io/ 💼 Check our current job openings! https://angel.co/lisk 👚👕 Lisk t-shirts now available: https://merch.lisk.io/ 👩‍🚀👨‍🚀 Meet the team: https://lisk.io/team 🔒 Store your LSK in our official wallet: https://lisk.io/hub 🔎 View our blockchain explorer: https://explorer.lisk.io/ ⚙️ Get the all new Lisk Hub: https://lisk.io/hub/index.html#/ 🎥 For media inquiries, please email us at press [at] lisk [dot] io. 👫Join our community channels: Reddit: http://reddit.com/r/lisk Twitter: http://twitter.com/liskhq Telegram: https://t.me/Lisk_HQ Lisk.chat: https://lisk.chat/ Instagram: http://instagram.com/liskhq Facebook: http://facebook.com/liskhq LinkedIn: https://www.linkedin.com/company/lisk/ 👨‍💻👩‍💻 For developers: GitHub: https://github.com/LiskHQ Gitter: https://gitter.im/LiskHQ/lisk Documentation: https://lisk.io/documentation
Views: 2827 Lisk
Developing a blockchain with Hyperledger Composer
 
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A live demo showing the capabilities of Hyperledger Composer using the Vehicle Lifecycle Demo as a basis to understand the functions and areas that Hyperledger Composer is designed for. Presented By Dan Selman | @danielselman LINKS What is blockchain?: https://ibm.co/2vavEAm Get a free guide to getting started with blockchain: https://ibm.co/2JWvdPN IBM Blockchain Platform Starter Plan – now in GA: https://ibm.co/2LNjt3O Develop. Govern. Operate a blockchain network: https://ibm.co/2OjSZZi #Blockchain #Technology #Coding
Views: 20750 IBMBlockchain
How well do we know our food?
 
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Innovators and influencers in the food industry are coming together to make our food system safer, more efficient and sustainable. Join us as we explore our collaborative blockchain network with IBM Food Trust™. What is IBM Food Trust™?: https://ibm.co/2Ozfp9c #Blockchain #SupplyChain #Sustainability
Views: 5836 IBMBlockchain
The Third Industrial Revolution: A Radical New Sharing Economy
 
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The global economy is in crisis. The exponential exhaustion of natural resources, declining productivity, slow growth, rising unemployment, and steep inequality, forces us to rethink our economic models. Where do we go from here? In this feature-length documentary, social and economic theorist Jeremy Rifkin lays out a road map to usher in a new economic system. A Third Industrial Revolution is unfolding with the convergence of three pivotal technologies: an ultra-fast 5G communication internet, a renewable energy internet, and a driverless mobility internet, all connected to the Internet of Things embedded across society and the environment. This 21st century smart digital infrastructure is giving rise to a radical new sharing economy that is transforming the way we manage, power and move economic life. But with climate change now ravaging the planet, it needs to happen fast. Change of this magnitude requires political will and a profound ideological shift. To learn more visit: https://impact.vice.com/thethirdindustrialrevolution Click here to subscribe to VICE: http://bit.ly/Subscribe-to-VICE Check out our full video catalog: http://bit.ly/VICE-Videos Videos, daily editorial and more: http://vice.com More videos from the VICE network: https://www.fb.com/vicevideo Click here to get the best of VICE daily: http://bit.ly/1SquZ6v Like VICE on Facebook: http://fb.com/vice Follow VICE on Twitter: http://twitter.com/vice Follow us on Instagram: http://instagram.com/vice Download VICE on iOS: http://apple.co/28Vgmqz Download VICE on Android: http://bit.ly/28S8Et0
Views: 2916463 VICE
How blockchain can disrupt systems of records
 
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In this week's session we'll demonstrate how an existing systems of record application can be enhanced to take advantage of IBM Blockchain's security and data provenance. We start with a motor insurance policy application that presents a 3270 green screen interface from CICS, and allows company employees to create new policies, entering vehicle make and model information manually. Having joined a consortium using Hyperledger Fabric, and Hyperledger Composer, the application is modernized by taking advantage of z/OS Connect EE's support to pull vehicle information from the Composer REST server. This data is then used when creating a new motor insurance policy, preventing mistakes on input and providing data provenance. A web frontend is presented using CICS Liberty, to deliver a better user experience. LINKS What is blockchain?: https://ibm.co/2LOZPaR Get a free guide to getting started with blockchain: https://ibm.co/2mYUlwd IBM Blockchain Platform technical overview: https://ibm.co/2CkteWH IBM Blockchain Platform Starter Plan – now in GA: https://ibm.co/2AsbcRD Develop. Govern. Operate a blockchain network: https://ibm.co/2mXEFcp #Blockchain #Technology #Coding
Views: 890 IBMBlockchain
How to check Bitcoin transactions - Hodl Hodl Exchange
 
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In this video we use blockexplorer.com and blockchain.info to check our Bitcoin transactions, learning important information and details about our crypto transactions. Hodl Hodl Exchange: https://hodlhodl.com Hodl Hodl Exchange TESTNET: https://testnet.hodlhodl.com/ Follow us on Twitter: https://twitter.com/hodlhodl Join our Telegram chat: https://t.me/HodlHodl Read our Blog: https://medium.com/@hodlhodl Email: [email protected]
Views: 112 Hodl Hodl exchange
Decentralized Storage Explained
 
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Decentralized Storage Explained - https://blockgeeks.com/ In this lesson we’ll learn about decentralized storage and some services that are available today like IPFS and Swarm. You can think of decentralized storage as a peer-to-peer network where members pool together their disk space to create a shared global memory, kind of like Dropbox but decentralized. Both IPFS and Swarm are similar in that they are opensource decentralized storage solutions, but they differ in implementation and approach. IPFS, which stands for interplanetary file system, is a protocol that was published by an organization called Protocol Labs. The first implementation of the IPFS protocol was written in the Go language and published in early 2015, and today there are several alpha release implementations available including in javascript. Swarm is also a protocol, and is part of the Ethereum holy trinity that makes up the serverless world computer, which consists of Swarm, Ethereum and Whisper. These three infrastructure projects are part of a broader vision that provides a completely decentralized alternative to the currently centralized web. Ethereum would provide the computation power; Swarm would provide the storage layer; And Whisper would provide a messaging layer. Swarm and Whisper are not quite as far along in their roadmaps as Ethereum. But a proof-of-concept Swarm implementation written in the Go language is included as part of the geth client since version 1.5 You may have noticed I said that both projects are either in alpha or proof-of-concept stages, meaning theyre not quite yet ready for the production spotlight. But understanding the role of decentralized storage in the future web is important, so you should know how to make use of these tools. As these projects evolve and mature, they will become increasingly production ready. Let’s start by looking at how to use Swarm. Since Swarm is already part of the Ethereum stack, a proof-of-concept Go language implementation exists as part of geth. So to activate swarm, we need to download and build geth and swarm from source. To do this, we need to have Git and Go installed in our environment. You can do this easily using the command brew install go git. Then you need to make sure your Go environment is setup correctly. You can do this by creating a folder called go in your home folder, and then exporting an environment variable called $GOPATH which points to this folder. We’ll then install from source by downloading the go-ethereum source code from their github mkdir -p $GOPATH/src/github.com/ethereum cd $GOPATH/src/github.com/ethereum git clone https://github.com/ethereum/go-ethereum cd go-ethereum git checkout master go get github.com/ethereum/go-ethereum And now we can compile geth and swarm from source: go install -v ./cmd/geth go install -v ./cmd/swarm We’re now ready to run the swarm daemon by using the binary in our $GOPATH. You can add this bin folder to your PATH for convenience. If you run swarm version, we can see that we are on version 1.8. To use Swarm, you need to have an Ethereum account. You can do this quickly using geth account new. After entering a password, this will print out the new account address that we will use to join the Swarm network. You can copy the public address to your clipboard. To run Swarm we first need to make sure we have geth running. Then in a separate tab we run swarm and point it to our Ethereum account using the —bzzaccount option and pasting in our public address. It will prompt for your password to unlock the keyfile for Swarm, and then start up a local Swarm node on port 8500. Now we can easily upload files using swarm command line tools by simply calling swarm up followed by the path of the file you want to upload. Swarm doesn’t support encryption yet, so make sure you dont upload any sensitive files. After uploading, you’ll get a unique hash printed out for this file that points to it on the Swarm network. Let’s upload our index.html from our previous blockchain explorer example. To read more check out https://blockgeeks.com/
Views: 6945 Blockgeeks
Blockchain for Kids | Blockchain Explained for Beginners
 
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Our first Blockchain for Kids video uses storytelling and creativity to break down blockchain so that even children can understand its benefits. Learn how blockchain works in its simplest form with a little story about a boy called Jacob. Find out what happens when Jacob writes to Santa asking for a blue cat. Read more in our Blockchain for Kids section of the Lisk Academy at https://lisk.io/academy/blockchain-basics/blockchain-for-kids Thanks for watching! Lisk makes it easy for developers to build and deploy blockchain applications in JavaScript. Learn about the leading platform for world-changing dapps at https://lisk.io/products. 👩‍🎓👨‍🎓Learn blockchain fast at the Lisk Academy: https://lisk.io/academy 🗞Read our latest news on the Lisk Blog: https://blog.lisk.io/ 💼 Check our current job openings! https://angel.co/lisk 👚👕 Lisk t-shirts now available: https://merch.lisk.io/ 👩‍🚀👨‍🚀 Meet the team: https://lisk.io/team 🔒 Store your LSK in our official wallet: https://github.com/LiskHQ/lisk-nano/releases/latest 🔎 View our blockchain explorer: https://explorer.lisk.io/ ⚙️ Get the all new Lisk Hub: https://lisk.io/hub/index.html#/ 🎥 For media inquiries, please email us at press [at] lisk [dot] io. 👫Join our community channels: Reddit: http://reddit.com/r/lisk Twitter: http://twitter.com/liskhq Telegram: https://t.me/Lisk_HQ Lisk.chat: https://lisk.chat/ Instagram: http://instagram.com/liskhq Facebook: http://facebook.com/liskhq LinkedIn: https://www.linkedin.com/company/lisk/ 👨‍💻👩‍💻 For developers: GitHub: https://github.com/LiskHQ Gitter: https://gitter.im/LiskHQ/lisk Documentation: https://lisk.io/documentation
Views: 8117 Lisk
Demo of Vite's Wallet and Blockchain Browser (to be released to the public on Aug 23, 2018!)
 
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The Blockchain Explorer and Wallet will be publicly available on August 23! Our development team have implemented basic functions of Vite's blockchain explorer and wallet! We are now in the last phase of integration test. This version of the Vite wallet covers all nodes. It allows users to generate accounts, check balances, send transactions, auto-receive tokens and obtain test tokens. Additionally, this version of Vite's blockchain explorer allows users to inquire about accounts, transactions, snapshot blocks, and list of tokens available on the Vite network. We hope you enjoy this demo video!
Daedalus tutorial video. Cardano Testnet 0.3 [English]
 
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日本語はこちら: https://www.youtube.com/watch?v=ecfPgjBdznk&t https://test.daedaluswallet.io/ Welcome to the Daedalus tutorial video. The Cardano Portfolio: Cardano Blockchain Explorer https://cardanoexplorer.com Cardano Launch https://cardanolaunch.com Cardano Documentation https://cardanodocs.com Cardano Roadmap https://cardanoroadmap.com Why Cardano https://whycardano.com Cardano Testnet https://tada.iohk.io In this demonstration we will show you how to install your Daedalus wallet, and use it to redeem, send and receive ADA. You will be using a pilot version of the Cardano platform, a test environment that engineers have built to make sure the software is working properly before they release the final version of Cardano. It is important that you participate in this test to help engineers find and fix any bugs and ensure a smooth user experience. Take note of the following steps as we walk you through how to install your Daedalus wallet and claim your ADA. Remember that this is a pilot version of the Cardano network for you to learn about how to use it. You will be using the certificate you received after going through the ADA Voucher Vending Machine. This is not the real product, any transactions are for testing purposes only. You will not lose any money. For more information visit: http://cardanofoundation.org/
Views: 184530 Cardano Foundation
Ever wonder how Bitcoin (and other cryptocurrencies) actually work?
 
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Bitcoin explained from the viewpoint of inventing your own cryptocurrency. Videos like these made possible by patreon: https://patreon.com/3blue1brown Protocol Labs: https://protocol.ai/ Interested in contributing? https://protocol.ai/join/ Special thanks to the following patrons: http://3b1b.co/btc-thanks Some people have asked if this channel accepts contributions in cryptocurrency form as an alternative to Patreon. As you might guess, the answer is yes :). Here are the relevant addresses: ETH: 0x88Fd7a2e9e0E616a5610B8BE5d5090DC6Bd55c25 BTC: 1DV4dhXEVhGELmDnRppADyMcyZgGHnCNJ BCH: qrr82t07zzq5uqgek422s8wwf953jj25c53lqctlnw LTC: LNPY2HEWv8igGckwKrYPbh9yD28XH3sm32 Supplement video: https://youtu.be/S9JGmA5_unY Music by Vincent Rubinetti: https://soundcloud.com/vincerubinetti/heartbeat Here are a few other resources I'd recommend: Original Bitcoin paper: https://bitcoin.org/bitcoin.pdf Block explorer: https://blockexplorer.com/ Blog post by Michael Nielsen: https://goo.gl/BW1RV3 (This is particularly good for understanding the details of what transactions look like, which is something this video did not cover) Video by CuriousInventor: https://youtu.be/Lx9zgZCMqXE Video by Anders Brownworth: https://youtu.be/_160oMzblY8 Ethereum white paper: https://goo.gl/XXZddT Music by Vince Rubinetti: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown
Views: 2263370 3Blue1Brown
It demonstrates to create, deploy and test a blockchain network using hyperledger fabric sdk java.
 
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This code pattern demonstrates to create, deploy and test a blockchain network using hyperledger fabric sdk java. For more details, refer to https://github.com/IBM/blockchain-application-using-fabric-java-sdk.
Views: 1789 Shikha Maheshwari
Golden State Foods: Ensuring food quality with fresh thinking in blockchain, AI and IoT
 
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Bridget van Kralingen, Senior Vice President, Global Industries, Platforms and Blockchain for IBM and Bob Wolpert, Corporate Senior Vice President and President, Logistics for Golden State Foods, explore the immutability of blockchain for supply chain. LINKS What is blockchain?: https://ibm.co/2O3RKMM Get a free guide to getting started with blockchain: https://ibm.co/2M2IAmE IBM Blockchain Platform Starter Plan – now in GA: https://ibm.co/2Km9hxL Develop. Govern. Operate a blockchain network: https://ibm.co/2O4SiBY #Blockchain #Technology #SupplyChain
Views: 417 IBMBlockchain

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