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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: 7900 Blockgeeks
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: 984 NEM with Tony
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: 1866 Blockchain WTF
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: 928 Dapp University
Exploring the Ethereum Blockchain
 
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This talk is about my experience building and using a block explorer for the Ethereum blockchain, which will provide a statistics highlight of the Ethereum blockchain and demographics of the Ethereum user base. The demographics portion will based on analytical data generated over the past years from Etherscan.io, which will assist new/existing developers on building a better user experience by first understanding who their potential target audiences are. Speakers: Matt Tan, Wee Chuan Tan (Product Manager – Etherscan)
Views: 295 Ethereum Foundation
Inside Ethereum Transactions · Web3.js · #3 Ethereum Blockchain Development Crash Course
 
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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 DOWNLOAD FREE VIDEO COURSES: http://www.dappuniversity.com/free-download How to Build Ethereum Dapp (Decentralized Application Development Tutorial) https://youtu.be/3681ZYbDSSk Donate Ether to the channel: 0x39C7BC5496f4eaaa1fF75d88E079C22f0519E7b9 Website: http://dappuniversity.com/ Follow me on Twitter (@DappUniversity): https://twitter.com/DappUniversity Email me: [email protected]
Views: 3391 Dapp University
Canadian Ethereum Blockchain Explorer, Bank of Thailand To Develop CBDC, No Mo Fomo3D | Episode 182
 
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The Comment is a daily ETHNews segment hosted by Sy Franco. Watch concise and informative news updates, commentary and interviews in the world of Ethereum and Blockchain. ETHNews.com is the central hub for all things Ethereum. Follow Sy: Twitter | @ethnewssy Instagram | @ethnewssy/ Follow ETHNews: Facebook | https://www.facebook.com/ETHNews/ Twitter | https://twitter.com/ETHNews_ Instagram | https://www.instagram.com/ethnews/ Linkedin | https://www.linkedin.com/company/ethnews
Views: 131 ETHNews
CD# 74. Crypto markets see red. Canada Launches Ethereum Blockchain Explorer
 
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Trade crypto currencies: https://goo.gl/aKnuE9 Here's the newest episode of our Crypto Digest, where we discuss the hottest crypto news from all around the world. Today you'll find out about: - Crypto markets see red - Canada Launches Ethereum Blockchain Explorer - Liechtenstein Bank to Issue Own Cryptocurrency
Views: 149 IQ
Public vs Private Blockchain - Bitcoin and Ethereum vs HyperLedger and Quorum
 
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Visit our website: https://altcoinbuzz.io In this video, Kunal describes the difference between public and private blockchains, and how BTC and ETH stack up against Hyperledger and Quorum ----------------------------------------------------------------------------------- CHECK OUT OUR PODCAST: https://bit.ly/2sZCAiF New episode every Monday and Friday! ----------------------------------------------------------------------------------- Check out Altcoin Buzz Ladies! https://www.youtube.com/channel/UCxulvI2C9wUvvDDNS7S35fA/videos ---------------------------------------------------------------------------------- Connect with us on Social Media: Twitter: https://bit.ly/2GDAoCp Facebook: https://bit.ly/2wYksLB Telegram: https://bit.ly/2IAqDuI ---------------------------------------------------------------------------------- Looking for the best cryptocurrency wallets? Check these out: Cold Storage Coins: https://bit.ly/2ISGynt BitLox: https://bit.ly/2rWQnHa CoolWallet S: https://bit.ly/2Liy5bv Trezor: https://bit.ly/2IXrZic Ledger Nano S: https://bit.ly/2IyE3al KeepKey: https://bit.ly/2x5TlhM Read about them here: https://bit.ly/2rTdthZ --------------------------------------------------------------------------------- References: https://blockchainhub.net/blockchains-and-distributed-ledger-technologies-in-general/ https://bornonjuly4.me/2017/01/10/blockchain-what-is-permissioned-vs-permissionless/ https://medium.com/iryo-network/public-vs-permissioned-private-blockchains-99c04eb722e5 https://cointelegraph.com/news/jpmorgan-considers-making-blockchain-platform-quorum-an-independent-entity -------------------------------------------------------------------------------- DISCLAIMER The information discussed on the Altcoin Buzz YouTube, Altcoin Buzz Ladies YouTube, Altcoin Buzz Podcast or other social media channels including but not limited to Twitter, Telegram chats, Instagram, facebook, website etc is not financial advice. This information is for educational, informational and entertainment purposes only. Any information and advice or investment strategies are thoughts and opinions only, relevant to accepted levels of risk tolerance of the writer, reviewer or narrator and their risk tolerance maybe different than yours. We are not responsible for your losses. Bitcoin and other cryptocurrencies are high-risk investments so please do your due diligence and consult the financial advisor before acting on any information provided. Copyright Altcoin Buzz Pte Ltd. All rights reserved.
Views: 3183 Altcoin Buzz
Know Your Crypto Resources: Etherscan.io - Ethereum Block Explorer
 
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https://etherscan.io/ Etherscan is an Ethereum Block Explorer. It is a great way to keep track of transactions on the network. It also has a lot of great information that can aid in researching a coin. Additionally, if you are holding coins that need to be entered as a custom token on MEW or Mycrypto, you can find the needed information on Etherscan. Discord: https://discord.gg/zXAPqNB. Facebook: https://www.facebook.com/CryptoFlower/ Twitter: https://twitter.com/Crypto_Flower Telegram: https://t.me/cryptoflower Please note, I am not a Financial Adviser, and any information contained in the video is my own opinion and not to be taken as financial advice. Please do your own due diligence before making any investment, and never invest more than you are willing to lose. VPN: Hide.me VPN: https://ref.hide.io/NWBG2A NordVPN:https://ref.nordvpn.com/?id=461184971 Non-Lending Platform ICOs: https://dashboard.skraps.io/?ref=63f4c97ea0c457069d546acd My Favorite Exchange for Alt Coins: https://www.binance.com/?ref=16939870 More GREAT Alts: Kucoin Exchange: https://www.kucoin.com/#/?r=7KH1JP Cryptopia: https://www.cryptopia.co.nz/Register?referrer=crypto_flower If you need to purchase Bitcoin, Ethereum, or Litecoin using USD, you can do this using Coinbase. If you use the code below when you make your purchase of $100 or more in Bitcoin, we will both receive $10 worth of Bitcoin from Coinbase. Coinbase Referral: https://www.coinbase.com/join/58c09e4115431a00ab505f2a
Views: 2053 Crypto Flower
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: 12862 Aqua
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: 2689 George Levy
Bitcoin Blockchain Explorer: Everything Beginners Need to Know
 
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🚨 What Is A Block/Blockchain Explorer?: https://coinsutra.com/blockchain-explorer/ 🚨 Best Bitcoin Blockchain/Block Explorers: https://coinsutra.com/best-bitcoin-block-explorers/ A blockchain explorer is a browser for the blockchain, similar to how we have browsers like Mozilla or Google Chrome for internet web pages. All Bitcoin and altcoin users rely heavily on blockchain explorers to track their transactions. But very few users really appreciate the full potential of these explorers. These browsers provide much more valuable information than just tracking transactions. And in this video of Bitcoin Blockchain explorer, you will learn:- -What is Bitcoin Blockchain Explorer -How to use a Bitcoin Blockchain Explorer -How to view a transaction/public address in the Blockchain explorer? -How to view your transaction fees in different currencies? -How to view the genesis block? This video is brought to you by CoinSutra. CoinSutra is a thriving community of Bitcoin and altcoin users where we often talk about Bitcoin wallet security, crypto investments and how to keep your cryptocurrencies safe. Connect with CoinSutra! Join CoinSutra, the most popular Bitcoin community: https://Coinsutra.com Join CoinSutra on Twitter-https://twitter.com/coinsutra Join CoinSutra on Telegram-https://telegram.me/coinsutra Join CoinSutra on Facebook-https://www.facebook.com/CoinSutra/ Join CoinSutra's Forum- https://ask.coinsutra.com/
Ethereum Block Explorer
 
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Ethereum Block Explorer Infos on Genesis Mining - http://tinyurl.com/12naei50uu6t Coupon Code is NFK875 Bitcoin is actually a world-wide currency that utilizes an open ledger technique to record deals being submitted one person to a different. Doing this happens with no central lender in the centre and it's also not handled through government, controlling system, individual business, or person. ethereum classic kurs zcash mining with gpu mine litecoin or dogecoin ethereum chart euro ethereum classic kurs 4 ethereum to usd secret de l'ethereum ethereum rig dash mining linux litecoin mining tablet
Views: 7 shaver mccauley
How To Check Ethereum Balance?
 
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🚨 Etherscan: https://etherscan.io/ and https://etherscan.io/balancecheck-tool Welcome to another video episode of CoinSutra. Many of our community members want to know that how they can check their Ethereum balance? Well, it is very easy and straightforward to do. Use Ethereum blockchain explorer, https://etherscan.io/ . Using this tool you can check your Ethereum balance easily just like you check you Bitcoin balance on a Bitcoin explorer. In this video I will tell you: ↪Overview of Blockchain/Bitcoin/Ethereum Explorer ↪How to check Ethereum balance in Etherscan.io ↪How to check Ethereum token balance in Etherscan.io Do share this video with your friends and family who want to know about check balance on Ethereum t. Also, do check out our detailed write-up on the block explorers here-https://coinsutra.com/blockchain-explorer/ Do check out our other videos to learn more about Bitcoin and other Cryptocurrencies. Connect with CoinSutra! Join CoinSutra on Twitter-https://twitter.com/coinsutra Join CoinSutra on Telegram-https://telegram.me/coinsutra Join CoinSutra on Facebook-https://www.facebook.com/CoinSutra/ Join CoinSutra's Forum- https://ask.coinsutra.com/
Block Explorer vs Website - Future of the Internet
 
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What is the difference between a block explorer and a normal website? A very relevant question for anyone who is interested in the blockchain space. Thanks for watching guys 💝 🎤 If you would like me to speak at your conference, book me here: https://ivanontech.com 🍻 Join the crypto discussion forum - https://thecrypto.pub 📚 Get my free e-book on Bitcoin and Blockchain - http://eepurl.com/c0hyc9 you will receive the book in your inbox once you sign up 👫👭👬Social: LinkedIn: http://linkedin.com/in/ivanliljeqvist/ Instagram: http://instagram.com/ivanontech/ Steemit: https://steemit.com/@ivanli Facebook: http://facebook.com/ivanontech/ Exclusive email list: http://eepurl.com/c0hyc9 🤑 Buy cryptocurrencies: https://www.coinbase.com/join/529bab0ab08ded7080000019 💰 Secure your Crypto with Hardware Wallets: Ledger: https://www.ledgerwallet.com/r/4607 Trezor: https://trezor.io/?a=rvj3rqtje3ph Ivan on Tech by Ivan Liljeqvist
Views: 10531 Ivan on Tech
Ethereum Goes Crazy! / KodakCoin? / Fraudster Jamie Dimon / Block Explorer = BCH Is Bitcoin / More!
 
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HUGE THANKS: @justbone (200 Steem Donation! woah man) Rebecca Ridolfo ($3 On Patreon :D) Christie LaBarca ($2 On Patreon!) ►►Please Like This Post On Steemit: https://steemit.com/crypto-news/@crypt0/ethereum-goes-grazy-kodakcoin-fraudster-jamie-dimon-block-explorer-bch-is-bitcoin-more 👍 Thank You Very Much For Watching This Video! Don't forget to smash those LIKE & SUBSCRIBE buttons :D 🎩►Become a Crypt0's News Patron: https://www.patreon.com/crypt0snews ⛄►Check Out Our New Crypt0's News Amazon Storefront For Recommendations: https://www.amazon.com/shop/obham001 https://www.youtube.com/watch?v=PB2dq7fS13k 🙇HELPFUL LINKS ►MAPS Donation To Help Fund MDMA-PTSD Approval: https://www.reddit.com/r/btc/comments/7pg89s/lets_make_mdma_a_legal_medicine_for_ptsd_maps/ ►Jamie Dimon Regrets Calling Bitcoin A Fraud: http://www.foxbusiness.com/markets/2018/01/09/exclusive-jpmorgan-chase-chairman-ceo-jamie-dimon-regrets-saying-bitcoin-is-fraud-but-still-isnt-interested-in-it.html 🌌►Grab A Crypt0 T-Shirt: https://crypt0.threadless.com/ 🚩🚩🚩A MUST HAVE ►Ledger Nano S (Top Multi-Asset Hardware Wallet): https://goo.gl/wZUVES (Official Site) ►Hardware Wallet Superstore (Small Discount Off Orders Of $100.00 Or More With Promo Code "Crypt0"): https://goo.gl/ftZL3w ►►►Hey!! Do You Enjoy Crypt0's News? 🚩Hit the "🔔" icon, after subscribing, to get notifications as soon as I upload a new video! 🚩Subscribe To My New VLOG For More Casual Crypto Content! https://goo.gl/kJnP4C 🎉Join The Crypt0's News Group: https://goo.gl/7zxDrt 🌎Follow Us On Steemit (Decentralized Social Media Platform) https://goo.gl/YNAK2u ►💎Donate Ether and Ethereum-Based (ERC-20) Tokens: 0x97f32d97D6Ce4dee3429279F04D5b96Aba7C969B ►💎Donate Bitcoin: 157qPNMQoSQvwcdTUaXB4jytuwnHK68JNq ►💎Donate Bitcoin Cash: 1GPoDy749fLUfWV9aKH5Zd17ZQ94cfi81Y ►💎Donate SmartCash: SRmxucTyFd1Dz64LSPAJPNcxQDhAzRTyvc ►💎Donate Dash: XdhemiKBeBCzJFq3v3WNggVRTgd8S4ys9J ►💎Donate Cardano: DdzFFzCqrhsfZABRQJE5wTytw14TpvFGn5AqP2KE5kmakesocQVpiahnX1pnaPKJ3rL2kSdrJLk4jzcE7HW8bWxs2KQrEdy53YN2kDXf ►💎Donate Using Paypal: https://goo.gl/7m1X4Z 📔___RECOMMENDED READING https://www.amazon.com/shop/obham001 ►📺Introduction to Crypto Playlist: https://goo.gl/YZTwvc 💻FOLLOW US HERE: ►Instagram: https://goo.gl/tV9kZh ►Twitter: https://goo.gl/fY2W2k ►Snapchat: minamarie0012 ►Crypt0's News Official Site: https://goo.gl/mnWvPL ►Steemit: https://goo.gl/YNAK2u -~-~~-~~~-~~-~- Please watch: "💥Boooom! Coinbase Custody Launches- Markets Soar! / BTCC Chinese Exchange Reopens!" https://www.youtube.com/watch?v=8TNh9_0LMXg -~-~~-~~~-~~-~-
Views: 21079 Crypt0
Ethereum Block Explorer
 
08:42
Ethereum Block Explorer Genesis Mining http://tinyurl.com/iodq375rpq Promo code HWvl6U Bitcoin is genuinely a worldwide currency that employs an open ledger system in order to track record deals being sent in one person to another. Doing this happens without central bank in the middle and it is not governed through government, controlling system, individual organization, or particular person. ethereum rig ethereum mining 6990 litecoin mining tutorial ethereum mining pool ethereum 32 bit
Views: 166 burnette betts
Explore ZCash blockchain with Zchain block explorer
 
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Shows how to use the Zchain block explorer. Link: https://explorer.zcha.in/ Follow deeplizard: YouTube: https://www.youtube.com/deeplizard Twitter: https://twitter.com/deeplizard Facebook: https://www.facebook.com/Deeplizard-145413762948316 Steemit: https://steemit.com/@deeplizard Instagram: https://www.instagram.com/deeplizard/ Support deeplizard on Patreon: https://www.patreon.com/deeplizard Support deeplizard with crypto: Bitcoin: 1AFgm3fLTiG5pNPgnfkKdsktgxLCMYpxCN Litecoin: LTZ2AUGpDmFm85y89PFFvVR5QmfX6Rfzg3 Ether: 0x9105cd0ecbc921ad19f6d5f9dd249735da8269ef Recommended books on AI: The Most Human Human: What Artificial Intelligence Teaches Us About Being Alive: http://amzn.to/2GtjKqu Coinbase sign up (You get $10 in BTC & we get $10 in BTC): https://www.coinbase.com/join/5934c12567d6760847b9a8dd GDAX playlist: https://www.youtube.com/playlist?list=PLZbbT5o_s2xr17PqeytCKiCD-TJj89rII Crypto hardware wallets: Ledger Nano S: http://amzn.to/2FZGP7y Trezor: http://amzn.to/2FZHs0U
Views: 639 deeplizard
How To Send Ethereum Transactions
 
03:30
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: 4965 Blockgeeks
How to use the Cardano Blockchain Explorer
 
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The purpose of this video is to go into a quick explanation of the functionality of the Cardano blockchain explorer. #cardano #ada #blockchainexplorer SOURCE https://cardanoexplorer.com https://adatracker.com/richest Keep your crypto SAFE and SECURE https://www.ledgerwallet.com/r/ce7a Equipment used https://amzn.to/2K2OALE SOCIAL MEDIA LINKS https://twitter.com/philpa6 DISCLAIMER Everything expressed here is my opinion and not official investment advice - please do your own research before risking your own money. ADA Tip Jar DdzFFzCqrhsiJvDPc5cNVNNnrXFnELk9hYtkL1PWansbn2htUrw1dqkSciXtSB6ZrxU637qSLDW9FVLmQTTdc6HmGLFuis4Mt6C8X8HA TELEGRAM Group Cardano is Coming https://t.me/cardanoiscoming
Views: 871 philpa
Bitcoin Explained Lab 1: Block Chain Explorer
 
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In this lab we will look at the block chain real time. We will look at the genesis block, the first bitcoin block ever mined on the network and we will see what the transactions in the block look like GET STARTED WITH CRYPTOCURRENCIES TODAY Sign up for a Coinbase account to buy your first Bitcoin: https://www.coinbase.com/join/5952ad71825c8204b8e9dc24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ Download my Step by Step guide to cryptocurrency Trading http://www.blockoffame.com/a-beginners-step-by-step-guide ++++++++++++++++++++++++++++++++++++++++++++++++++++++ SIGN UP to the Binance cryptocurrency exchange for trading altcoins (xrp, xlm, ada, omg etc) http://www.binance.com/?ref=11366788 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
Views: 1492 On1 Productions
Create new einc organization on EtherInc Blockchain | Ethereum Fork | DAO
 
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EtherInc is a fork of Ethereum to power the future of organizations - a decentralized blockchain project for creating a digital organization based on cryptographic proof instead of trust, that can operate borderless, permissionless, democratically and transparently with the consensus of its shareholders, without the need of a trusted third party and/or costly intermediaries. ⚡️Trusted Links:⚡️ 🌐 Main site: https://einc.io 🌐 Coinsale: https://einc.io/coinsale ✅ Wallet: https://wallet.einc.io/ ✅ Organisation Explorer (Mainnet): https://etherinc.org/ ✅ Organisation Explorer (Rosten Testnet): https://ropsten.etherinc.org/ ✅ Block Explorer (Mainnet): https://explorer.einc.io/ ✅ Block Explorer (Rosten Testnet): https://ropstenexplorer.einc.io/ ✅ Network (Mainnet): https://network.einc.io/ ✅ Network (Rosten Testnet): https://ropstennetwork.einc.io/ ✅ eIncMeta: https://chrome.google.com/webstore/detail/lghmfnfghfcjoblchpmlghkigcgakoag ✅ Whitepaper: https://cdn.einc.io/assets/files/einc_whitepaper.pdf ✅ Github: https://github.com/etherinc ✅ BitcoinTalk: https://bitcointalk.org/index.php?topic=3084491 ✅ Blog: https://medium.com/einc ✅ Telegram: https://t.me/eIncHQ ✅ Github: https://github.com/etherinc ✅ Twitter: https://twitter.com/eIncHQ ✅Reddit: https://www.reddit.com/r/eincofficial ✅Mining Group: https://t.me/ETImining
Views: 3399 EtherInc
Cardano Coin (ADA) - Could This Really Be The Ethereum Killer?
 
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Join me in Las Vegas on December 9th for NAC3. https://www.nac3.io Early bird tickets still available for $97. In this episode of Crypto Riot we take a look at Cardano. Light on the bark and heavy on the bite this team doesn't believe in hype and gimmicks. The academic team team headed by Charles Hoskinson are attempting to solve some of the most difficult problems facing the cryptocurrency industry. Upcoming Conferences (March 24th Los Angeles) http://nac3.io Cryptocurrency Swag & Comical T-Shirts http://bit.ly/2yt0e9l Social Media Facebook: https://www.facebook.com/davidhay.org/ Reddit: https://www.reddit.com/r/DavidHay Steemit: https://steemit.com/@davidhay/ Favorite Tools Desktop Wallet:http://exodus.io IPhone Wallet: http://blockchain.info Hardware Wallet: http://Trezor.io Coin Research: https://coincheckup.com/ Mine Crypto With Your Computer: http://bit.ly/2vwse9l Accept Crytpo on Your Website: http://bit.ly/2A17fkR Bitcoin Blockchain Explorer: https://blockexplorer.com/
Views: 189920 David Hay
What is a Bitcoin Block Explorer
 
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A short video explaining what a block explorer is. For more information visit http://99bitcoins.com/block-explorer-blockchain-browser
Views: 2459 Ofir Beigel
Learn to Write Messages on the Ethereum Blockchain
 
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For my full course on Blockchain and Bitcoin Fundamentals, go here: https://georgelevy.com/BBFYTVID Would you like to learn how to write hidden messages on the Ethereum blockchain? Messages that are permanent and immutable, and which are hidden from plain view - but stored on the blockchain? In this video I teach you how to record hidden messages on the Ethereum blockchain, easily (and very, very cheap) Check it out! For your convenience, this is a link on a block explorer to the first transaction with a hidden message shown in the video: https://etherscan.io/tx/0x069e60c2afd25bb2b34996fa6758954272db25c07bcff3066f73e2eb16603ebb and here is the link to the second transaction with a hidden message shown: https://etherscan.io/tx/0x5496d381d8b2c6ae028c69f90a643f1c453bbfd0381df9d0af0e20b09a04dadd 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. 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: 2139 George Levy
How To Use Ganache GUI With Truffle? | Ep14
 
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Ganache GUI is a local blockchain explorer for Ethereum development. You can visualize blocks and transactions and better understand whats going on with your smart contract. This is a fantastic tool for Ethereum developers but there arent many tutorials about it and its not that easy to use. After you watch this tutorial you will feel comfortable using Ganache GUI and you it will be way more pleasant and easy to develop smart contracts. We will deploy and interact with a simple smart contract using the Truffle console and see how those interactions can be visualized in Ganache GUI. This is video is part of a series on Ganache GUI: https://www.youtube.com/playlist?list=PLbbtODcOYIoEv8NO7ZmLb5npDDpMdYsQx Like this channel? Subscribe here: https://www.youtube.com/channel/UCZM8XQjNOyG2ElPpEUtNasA In this video tutorial we are going to: - Configure Ganache GUI to work with Truffle - Deploy a sample smart contract to Ganache CLI - Execute transactions and calls to the smart contract - See how those transactions and calls are reflected BONUS: difference between eth_call and transactions Links: - Source Code: https://github.com/jklepatch/eattheblocks/tree/master/episode14 - Official Website https://eattheblocks.com - Author Website: https://www.julienklepatch.com
Views: 634 Eat The Blocks
BLOCKCHAIN EXPLORERS
 
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Zeonlab is a Blockchain consulting and development company. We develop applications/products on Ethereum, Hyperledger and other Blockchain platforms. We have some of the smartest Blockchain engineers in India, all from the IITs (Indian Institute of Technology) We work with companies on identifying and developing use-cases (both Proofs-of-Concept and full-scale implementation) on Blockchain. We create the Proof-of-Concept first and do an end-to-end implementation on the existing tech stack of the client. It is typically followed by a testing and full-scale implementation phase. We also help create Blockchain capabilities in clients by training their employees. Website: https://www.zeonlab.com/ Facebook: https://www.facebook.com/zeonlabblockchainstrategyandapps/ Twitter: https://twitter.com/zeonlab Linkedin: https://www.linkedin.com/company/zeon-lab/
How To Play Crypto Collectibles Fishbank Game on Ethereum Blockchain
 
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Fishbank is the blockchain game that allows collecting, growing and trading crypto fish tokens. https://fishbank.io How to install Metamask? https://youtu.be/tCeqEbf6YUA There are two major ways to get fish in the game: try to catch one in Aquarium or buy it directly from other players on the market. You can catch a random fish in Aquarium. At least one common fish in guaranteed every time you try to catch. Just press the “Catch” button and sign transaction in MetaMask wallet. There is a chance to get Rare, Epic and Legendary fish in the Aquarium as well. The bigger your crypto fish is, the more powerful rivals it can defeat, the higher price it may have on the market. Fight results are determined by open sourced smart contracts, the history of all fights for every fish is stored on public Ethereum blockchain. Trade your crypto fish token for the better one on the Market. Almost every game action is a transaction in Ethereum blockchain that is publically available for review in any block explorer. Grow your crypto fish champion to the top of decentralized ocean food chain!
Views: 2801 CHATROBOTIC Team
Tron $Trx set to Moon | Tron Explorer
 
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Tron Trx is building the infrastructure for a decentralized internet. Tron will migrate from Ethereum blockchain to Tron mainnet. Tronscan, trons Dapps, Tron project genesis Be wise. Take control of your money. wickedly crypto http://wickedlycrypto.com https://tron.network/?lng=en Exchange: Binance https://www.binance.com/?ref=10878772 Kucoin https://www.kucoin.com/#/?r=E4joxz Bibox https://www.bibox.com/login/register?id=11129240&lang=en Ledger Nano S https://www.ledgerwallet.com/r/735f Trevor https://trezor.io/?a=wickedlycrypto.com Follow me on twitters http://twitter.com/wickedlycrypto Donations are appreciated Bitcoin 17utWmobf21M358Dicxm7MrkmppgC7qDXL Ethereum/ ERC 20 tokens 0xCfD1ca17F7f6AFa8642BF517723477184AFaea45 Litecoin LWPi44jntGu9Wi7XpXMoFjkky31j7F1ys5 I am not a financial adviser, you should use your own due diligence to determine if this investment is right for you. You are responsible for your money. This is not a paid review, investing in ICO has inherent risk, use your due diligence to invest your money
Views: 141 Wickedly Crypto
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: 68 和飞
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: 6896 Blockgeeks
7 How to set up your own private Ethereum Blockchain browser
 
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In this video I show you how to set up a browser for your own private Ethereum blockchain.
Views: 6471 Matt Thomas
How To Create An Ethereum Smart Contract
 
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How To Create An Ethereum Smart Contract https://blockgeeks.com The most interesting part of Ethereum are smart contracts. You can think of smart contracts like autonomous agents deployed onto the Ethereum blockchain. Smart contracts are made up of some data, as well as some code that manipulates that data. Just like a user account, smart contract accounts also have their own balance as well as a public address, which looks the same as the user account address. To interact with smart contracts, you send transactions to it with some extra data, to specify which function you want to invoke, as well as any input parameters for the function. The transaction will invoke the function, and return any possible output once it has been mined. We're going to be using Remix to write smart contracts, which is an online IDE, available for free at remix.ethereum.org. It comes with a compiler, editor and debugger for solidity. The great part is that you don't need to download or install or set up anything, you just go to this webpage and start writing smart contracts, which is awesome. The UI is divided into four main sections. The left part is our file explorer where we can open Solidity files from our hard drive. The middle section is our editor where we can view and write our source code. At the bottom we have a terminal which prints out important events and transactions, and the rightmost section contains some handy tools for compiling running and debugging our code. The first example we'll look at is a smart contract called Hodor. Let's load up the source code. You'll notice that Solidity source files end with the .sol extension. The syntax of Solidity resembles java script, so it should be fairly easy to pick up. The first we see at the top uses the pragma directive. This tells the compiler that the contract is written for a Solidity compiler version of at least [0.4.0 00:01:53], or anything newer that doesn't break functionality. We then have a multi-line comment block, briefly describing what this class does. The next line is where we declare the name of our smart contract using the contract keyword. We've simply called out class Hodor because, as you'll see, all it does is return a simple greeting. We also declared two state variables called Creator and Greeting. Creator has an address data type, which is used for storing addresses of accounts. Greeting is a string data type, which just stores some text greeting. We initialized both of these variables in our constructor. The constructor is declared using the function keyword, followed by the name of the class. The constructor is a special function that is invoked only once, when a contract is first deployed to the Ethereum blockchain. You can only declare a single constructor for a contract. We also inject the initial string greeting as a parameter, into the constructor, and set the greeting variable to that value. In the second line of the constructor, we initialize the creator variable to a value called message.sender, but if you look closely, you might wonder where this value came from, since it's not being injected into the constructor. This is because message is a global variable that provides certain information about the message, such as the address of the account sending it. We can get the address of the account creating the contract, using message.sender in the constructor. You may notice that we don't actually use this creator variable anywhere in our contract, because this is just a simple example. We could potentially use this information to implement access control to certain functions. We'll see an example of this later. Read more on Blockgeeks: https://blockgeeks.com
Views: 46144 Blockgeeks
A Canadian Government Body Has Built an Ethereum Blockchain Explorer
 
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Thanks for watching❤! SUBSCRIBE to receive more videos for free. A Canadian Government Body Has Built an Ethereum Blockchain Explorer ▶ About copyright: If someone has a problem with any upload, please contact us and we will delete the video immediately. Thank you for your cooperation. If there is a problem related to content copyright, images... please contact us to resolve it. We will work together quickly and in the spirit of best cooperation. ▶ Make sure you do not re-upload the video (the video takes a lot of time). Any violation will result in termination of your account. ▶ Thank you and best regards
Views: 1 Coin News
Andrew Cravenho of POA talking about BlockScout
 
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This month we'd like to welcome our special guest Andrew Cravenho, project lead of BlockScout! BlockScout is an open source blockchain explorer which provides an easy-to-use interface for users to inspect blocks, transactions, tokens, contracts, and addresses of any EVM (Ethereum Virtual Machine) blockchain. BlockScout will support 6 networks when it’s launched including Ethereum Mainnet, Kovan Testnet, Ropsten Testnet, Ethereum Classic, POA Core, and POA Sokol. Much of the Ethereum community uses a block explorer called Etherscan. While this explorer offers many great tools and user experiences, they’re closed source and centralized. Sidechains, forks, and independent networks don’t have access to these tools that Etherscan offers. This is the reason BlockScout has been created. All EVM chains now have access to many of these same tools. Blockscout is an Elixir application built on the Phoenix web framework, PostgreSQL, and many other open source efforts. The choice of using Elixir was an easy decision with its scalability, concurrency, and fault-tolerance systems. The development of BlockScout is ongoing but here is a list of current features: - Open source development - Realtime events - Smart contract verification - Smart contract querying - Token support (ERC20 and ERC721) - User customization This presentation will demonstrate the capabilities, features, and tools that BlockScout offers to the Ethereum ecosystem. A demonstration will also be provided on how to deploy BlockScout on your own private network customizing your logo, color scheme, and RPC endpoints. Finally, we will discuss how to get involved in the POA Network community, future developments, and other projects that might be of interest to developers interested in contributing to the POA Network initiative. Notes and minutes for more details before the meetup here: https://www.evernote.com/shard/s107/sh/bf83ba70-f3e6-4087-98b9-8226605afde4/dca0aa3a2aeed311
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
#1 Open Source Blockchain Explorer NOW! - March 23, 2018
 
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A Meeting of the Minds! POA.network, MyEtherWallet, Ubiq and RSK are all building the same dream. Giveth is trying to bring them all together so that we can get an Open Source Blockchain Explorer NOW! Explorer by POA Network Github: https://github.com/poanetwork/poa-explorer Block Explorer: https://explorer-sokol.poa.network/en (Dockyard) - Project 1: https://github.com/poanetwork/poa-explorer/projects/1 (Gaslight) - Project 2: https://github.com/poanetwork/poa-explorer/projects/2 (Plataformatec) Project 3: https://github.com/poanetwork/poa-explorer/projects/3 EthVM - MEW https://github.com/enKryptIO/ Database: RethinkDB Backend: Modified Geth, Stateless websockets for scaling Frontend: Vuejs Shokku (Infura clone and more things to come): https://github.com/ubiq/shokku Thank you for watching! See you in 2 weeks :-D Giveth is re-engineering charitable giving, by creating an entirely free, open-source platform, built on the Ethereum Blockchain. Join http://join.giveth.io Donate http://donate.giveth.io Discover http://giveth.io
Views: 781 Giveth
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
Panel discussion | Nexus Conference 2017
 
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A panel of key figures in blockchain discuss a range of topics including Jp Morgan head Jamie Dimon’s comments about Bitcoin being a fraud, ICOs, and factors weighing on the price of Ethereum. Followed by a Q&A session with the audience. Panellists include Roger Ver, Stacy Herbert, Max Keiser, Charles Hoskinson, Arry Yu, and Rob Viglione. #Nexusconference @rogerkver @stacyherbert @maxkeiser @IOHK_Charles @robviglione Cryptocurrencies face problems of governance, interoperability and sustainability, and these challenges will have to be solved for cryptocurrencies to become more useful systems. Charles Hoskinson, CEO and co-founder of IOHK explains these issues and talks about the solutions, followed by a lively Q&A session with the audience. @nexus_aspen2017 http://www.nexusearth.com/conference.html Charles Hoskinson is a Colorado based technology entrepreneur and mathematician. He attended Metropolitan State University of Denver and University of Colorado at Boulder to study Analytic Number Theory prior to moving into cryptography via industry exposure. His professional experience includes founding three Cryptocurrency related start-ups - Invictus Innovations, Ethereum and IOHK - and a variety of colorful positions in the public and private sector. He was the founding chairman of the Bitcoin Foundation’s education committee and established the Cryptocurrency Research Group in September of 2013. His current projects focus on education of cryptocurrency topics, evangelism of decentralization and making cryptographic tools easier to use for the mainstream. https://iohk.io/team/charles-hoskinson/ http://www.nexusearth.com/conference.html -- Input Output See more at: https://iohk.io Get our latest news updates: https://iohk.io/blog/ Meet the team: https://iohk.io/team/ Learn about our projects: https://iohk.io/projects/cardano/ Read our papers: http://iohk.link/paper-ouroboros Visit our library: https://iohk.io/research/library/ In the press: https://iohk.io/press/ Work with us: https://iohk.io/careers/ See more on Cardano: https://iohk.io/projects/cardano/ -- 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/UCbQ9... 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: 11360 IOHK
How-to Verify your smart-contracts on the Ethereum Network using Etherscan December 2017
 
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HASH.GUIDE Video on How to verify your smart contracts on the ETH network. My contracts were submitted with Oracles.org ICO Wizard, the oracles team is solid and are very helpful with their DApp deployments. The zip file downloaded on the final step includes the .sol solidity contract file and a text file for each smart-contract submitted to the network. The ICO Wizard uses TokenMarket contracts and the tokens are mintable and whitelist enabled or disabled, your choice. You are allowed multiple tiers for multi-level ICO's or you can allow modifying so you can change the price of your token ICO and have a multi level tokensale that way. I will be posting other videos on how to hex encode your arguments to manage your crowdsales by changing the rate per ether per token or the total supply of your ICO. PLEASE SUBSCRIBE TO MY YOUTUBE CHANNEL, NOW. Check out https://hash.guide FOLLOW ME on Twitter https://twitter.com/hashguide Also, come by my forum, sign up and help start a smaller community for the crypto blockchain world http://decentralized.solutions/ Please use my Affiliate links to sign up for any programs we talk about, thank you. If you have any suggestions or comments, feel free to leave some in the video comment section. HitBTC Exchange https://hitbtc.com/?ref_id=59e63ce4e9531 Cex.io Exchange https://cex.io/r/0/up104637521/0/ WhaleClub Exchange - Trade Stocks, Bonds, Metals, Indices, Crypto https://whaleclub.co/join/LjnLN4 Coinbase - Buy $100 in BTC receive $10 in BUY section; Use Credit Cards or Bank Account to BUY or SELL larger amounts. https://www.coinbase.com/join/5a00e483b895b800c8e0d729 xCoins - Buy many different coins with PayPal https://xcoins.io/?r=5p9f9k Changelly - Buy tons of different coins with Visa and Mastercard https://changelly.com/?ref_id=1205a4a54125 Ledger Nano S - Hardware Wallet https://www.ledgerwallet.com/r/479c?path=/products/ledger-nano-s&tracker=tradebtc-nano Trezor - Hardware Wallet https://shop.trezor.io/?a=tradebtc.today MinerGate - 1-Click Mining Application for Windows, Mac and Linux to mine Monero, Ethereum, Ethereum Classic and More. https://minergate.com/a/412c267a90e60c20142d8394 Bitconnect BTC Lending Platform - Lend your Bitcoin or Bitconnect Coins for a daily interest, Lots of people make good money with this program. https://bitconnect.co/?ref=freshbtcer BE KIND, DONATE IF POSSIBLE, THANK YOU BTC: 16oT4KdmQxVCUf4QFaw1tCS27Aw4b9uFMV ETH: 0xfa229B4e01d2F184D7fD6b41352354C5Be402791 XMR: 49LrKmzQGmofY3C4k2xLyGTuJCkS2pAc69EdfmDLJXUM23WxfrH8SPch95SoxSiECrFdGJ76hYThgCdCcMJ8nGGu9u49toy You can check out great reviews from HowMuchBitcoin VoskCoin CryptoMined Ivan on Tech The Crypto Challenge and many other Crypto channels. If this channel ever gets big enough to make money for me, I will be using that money to buy my own products to give you guys reviews, Thank you for watching, PLEASE SUBSCRIBE
Views: 3612 hash guide
EtherInc Blockchain based eInc organisations | An Ethereum Fork
 
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EtherInc is a fork of Ethereum blockchain and its dedicated for decentralized organizations. EtherInc Blockchain is LIVE 🌐 Main site: https://einc.io 🌐 Coinsale: https://einc.io/coinsale ⭐️ Bounty: https://bitcointalk.org/index.php?topic=3780435 ⭐️ ⭐️ Airdrop: https://einc.io/airdrop ⭐️ ⭐️ Whitelist for Pre Sale: https://einc.io/whitelist ⭐️ Wallet: https://wallet.einc.io/ Organisation Explorer (Mainnet): https://etherinc.org/ Organisation Explorer (Rosten Testnet): https://ropsten.etherinc.org/ Block Explorer (Mainnet): https://explorer.einc.io/ Block Explorer (Rosten Testnet): https://ropstenexplorer.einc.io/ Network (Mainnet): https://network.einc.io/ Network (Rosten Testnet): https://ropstennetwork.einc.io/ eIncMeta: https://chrome.google.com/webstore/detail/lghmfnfghfcjoblchpmlghkigcgakoag Whitepaper: https://cdn.einc.io/assets/files/einc_whitepaper.pdf Github: https://github.com/etherinc BitcoinTalk: https://bitcointalk.org/index.php?topic=3084491 Blog: https://medium.com/einc Telegram: https://t.me/eIncHQ Telegram Announcements 📢: https://t.me/einc_announcements Github: https://github.com/etherinc Twitter: https://twitter.com/eIncHQ Reddit: https://www.reddit.com/r/eincofficial Mining Group: https://t.me/ETImining
Views: 58 Akash Kumar
Building A Chrome Extension to Scan ENS (Ethereum Blockchain)
 
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Create your own Chrome Extension that connects with the Ethereum blockchain via the Ethers.js library. Github: https://github.com/KamesCG/locateth
Views: 162 Kames Cox-Geraghty
Develop Upgradable Smart Contracts on the Ethereum Blockchain with Solidity and Truffle 4
 
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Find a full write-down of this on my blog: upgrade-smart-contracts-on-chain In this video we are exploring different ways of upgrading smart contracts on the Ethereum Blockchain. First we discuss a very intuitive approach. Then I'll show you why separating the logic into libraries doesn't work. Then we go through existing solutions. At the end we develop our own sample with Truffle and the MetaCoin example.
Views: 2580 Toms Courses
#9 Open Source Block Explorers NOW!
 
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This is the ninth open call coordinating the creation of quality open source EVM block explorers, Click "SHOW MORE" to find SOOOOO MANY LINKS: Block Explorer by POA Network Github: https://github.com/poanetwork/poa-explorer Timeline: https://github.com/poanetwork/poa-explorer/wiki/Timeline-for-POA-Block-Explorer Overview: https://github.com/poanetwork/poa-explorer/wiki/POA-Block-Explorer-and-Web3-Grant-Overview Stack:https://github.com/poanetwork/poa-explorer/wiki/Development-Stack Block Explorer: https://github.com/poanetwork/poa-explorer (Dockyard) - Project 1: https://github.com/poanetwork/poa-explorer/projects/1 (Gaslight) - Project 2: https://github.com/poanetwork/poa-explorer/projects/2 (Plataformatec) Project 3: https://github.com/poanetwork/poa-explorer/projects/3 EthVM by MyEtherWallet https://github.com/enKryptIO/ Database: RethinkDB Backend: Modified Geth, Stateless websockets for scaling Frontend: Vuejs Feature Requests: https://github.com/enKryptIO/ethvm/issues QuickBlocks http://quickblocks.io GitHub: https://github.com/Great-Hill-Corporation/quickBlocks White Paper: https://github.com/Great-Hill-Corporation/quickBlocks/blob/master/src/other/papers/README.md Open Source Infura Clone: Shokku https://github.com/ubiq/shokku Web3Scan https://www.youtube.com/watch?v=f4mdm8Nk9hc Analyse Ether To access MVP fill out this form: https://docs.google.com/forms/d/e/1FAIpQLSeEzkCaZBkPtGd-4CbDJ-OgIjl9L1wiqV-TtywAJxi0UsSJ2g/viewform Github page: https://github.com/analyseether (ether to database) Ether_sql → https://github.com/analyseether/ether_sql (webapp) redash3 → https://github.com/analyseether/redash-3 OST VIEW github: https://github.com/OpenSTFoundation/openst-explorer- Hosted version for OST testnet : https://view.ost.com Thanks for being part of the movement! Giveth is re-engineering charitable giving, by creating an entirely free, open-source platform, built on the Ethereum Blockchain. Join http://join.giveth.io Donate http://donate.giveth.io Discover http://giveth.io
Views: 144 Giveth
How Bitcoin/Ethereum/Blockchain Work - how blocks, miners, and smart contracts work
 
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This is a good introduction to blockchain and goes over concepts of blocks, miners, and smart contracts and how they remove the need for intermediaries using technology Read by Aditya Mittal https://acmetutor.com https://acmeentrepreneur.com https://youtu.be/Lx9zgZCMqXE
Views: 780 Aditya Mittal
Blockchain Launched ETH Explorer Tamil
 
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Views: 32 Bitcoin Tamil

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