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Go Ethereum Episode 2: Installing the Go Ethereum client [OOD - see desc. for recent instructions]
 
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[This information is out of date, please see for up to date install information - https://ethereum.gitbooks.io/frontier-guide/content/getting_a_client.html] Episode 2: Installing the Go Ethereum client By Jeffrey Wilcke and Stephan Tual A text copy of this tutorial can be found at: http://forum.ethereum.org/discussion/905/go-ethereum-cli-ethereal-simple-build-guide-for-osx For more information about Ethereum please visit https://www.ethereum.org For our forums including help on the Go Ethereum client and Mutan, please visit: http://forum.ethereum.org/
Views: 12822 Ethereum
Use Golang to Connect to Ethereum | Blockchain
 
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In this video we use Golang rather than the more popular Javascript to connect to an Ethereum node. Source code: https://gist.github.com/ezynda3/551155e9b6447224d9ff2431c1f57488 Check out my other videos and articles http://edzynda.com Follow me on Steemit https://steemit.com/@edzynda 💎►Donate Ether and Ethereum-Based (ERC-20) Tokens 0x146cfed833cc926b16b0da9257e8a281c2add9f3 💎►Donate Bitcoin 1KyZbSeeCWgmeRrUQTTbb3meJEyPCGy3zd 💎►Donate Dash XoZdSzN3hPFksQQZx616A6fGGN22zANpMW 💎►Donate Lisk 16883042352161362207L
Views: 2181 What The Func?
Ethereum Go light client test with Mist
 
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Used go-ethereum client fork https://github.com/zsfelfoldi/go-ethereum
Views: 1120 Sergey Lonshakov
Intro To Geth: Create Your Private Ethereum Blockchain - in 5 mins
 
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Welcome to this introduction to Geth. In this video, we will learn about Geth, which is the most popular client for the Ethereum blockchain app platform. We will also learn how to download, install and configure Geth. Finally, we will learn to create an Ethereum account using Geth. Let’s start with a quick overview of Geth. Geth is the C L I or command line interface for running a full Ethereum node. It is implemented in the Go programming language, but does not require its users to have proficiency in Go. It is free to download and install. Geth supports most major operating systems. In this video, we will focus on the Windows version of Geth. Now let’s look at what Geth can do. Geth can be overwhelming due to its long list of commands, but for now we will focus on three key use cases. First, Geth is used to mine, in other words, to create blocks that are published to the Ethereum blockchain. The miner receives Ethereum currency or “Ether” as a reward for doing so. Secondly, Geth is used to create and manage Ethereum accounts. Accounts can store Ether. Geth also lets you transfer Ether between accounts . This transfer of Ether between accounts is known as a transaction. Lastly , Geth is used to create contracts. Contracts can receive transfers just like regular accounts. However, they can also receive more complicated transactions that run code, and optionally, update the state of the contract. In this series of videos, we will build a simple contract using Geth. Note that we will not be mining any real Ether currency in this video. We’ll need to do a couple of things before we can dive into Geth. First, download and install Geth by going to the download page on the Ethereum site. Choose the Windows 64-bit installer for version 1.5.6, which should work on most modern Windows systems. Run the installer like you would any other installer. Next, we’ve created some helper scripts to make learning Geth easy. Head over to the github URL that you see here. Click the green "clone or download" button, and select "Download zip". Unzip the zip file that is downloaded. You should see a folder called “nugget1”. We will use that folder for our first lab with Geth. Ok, let’s dive into our lab. As a prerequisite, you’ll need to be comfortable using the Windows command line. Some exposure to programming languages is helpful but not required. Now, start the Windows command line. Head into the nugget1 folder. For the purposes of this exercise, we’ll create a private blockchain. Initialize this blockchain with the “genesis block” or first block. Use the helper script genesis to do so. Now that the blockchain has been initialized, let’s create our first account. We will use the Javascript console that comes with Geth. Start this console using the helper script "console". Once the console is up and running, type “personal.new Account” to create your first account. Provide a password that you can remember. You will be asked to enter it twice. Geth responds with a long hex string that represents your account address. Congratulations! You have created your first Ethereum account on your own private Ethereum network! So let’s recap what we learned today. We learned about the key features of Geth, how to download and install it, how to start a new blockchain, and how to create an account. Stay tuned for the next video in this series! *** Note: Comments were turned off. This channel is built on spare time, and the author was unable to answer Ethereum technical questions. Please refer to Ethereum forums to resolve technical issues.
Views: 26041 RocketPrep
1 How to install Geth client on (Mac) - Ethereum from scratch
 
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This is the first in my new series of blockchain videos on the Ethereum. I just cover the installation of the geth client on Mac which is a good first step to getting stuck in. I am making these videos as I go along learning Ethereum. So what you see is the exact order I am learning it. Instructions https://github.com/ethereum/go-ethereum/wiki/Installation-Instructions-for-Mac 1) Open terminal Install homebrew /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" 2) Install geth brew tap ethereum/ethereum brew install ethereum 3) Test installation Type "geth" in the terminal window (ctrl C to quit)
Views: 16708 Matt Thomas
Ethereum Clients   - Part 1
 
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Ethereum clients allow you to setup an Ethereum node on your computer. An Ethereum client is like a Java Virtual Machine (JVM) and allows you to run Ethereum programs. With an Ethereum client, you can participate in the Ethereum network and perform tasks such as creating accounts and contracts, sending Ether to other accounts, sending transactions to contracts, mining on Ethereum network and other tasks related to the Ethereum blockchain network. Ethereum provides clients in various launguages including the Go (go-ethereum),C++ (cpp-ethereum), Python JavaScript etc. visit our site : www.Boon.Tech
Views: 1988 Boon Tech
03. Web3.js Tutorial - Attach a GUI to your Ethereum Smart Contract
 
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Free Course Page (In development): https://goo.gl/EiKpPP Written tutorial of this video: https://goo.gl/RdXuz9 https://coursetro.com This video is the 3rd lesson from my 100% free course: "Developing Ethereum Smart Contracts for Beginners" Check it out here: https://goo.gl/EiKpPP In this video, we're going to take our smart contract we created in the previous lesson, and make it accessible via a web page with the help of the official Ethereum Web3.js client and Ethereum-testrpc. https://coursetro.com https://www.facebook.com/coursetro/ - - - - - - - - - - - - - - - - - - - - - - Subscribe for NEW VIDEOS weekly! My Patreon: https://www.patreon.com/designcourse My site: https://coursetro.com My personal FB account: http://fb.com/logodesigner Coursetro FB: http://fb.com/coursetro Coursetro's Twitter: http://twitter.com/designcoursecom Join my Discord! https://discord.gg/a27CKAF ^-Chat with me and others - - - - - - - - - - - - - - - - - - - - - - Who is Gary Simon? Well, I'm a full stack developer with 2+ decades experience and I teach people how to design and code. I've created around 100+ courses for big brands like LinkedIn, Lynda.com, Pluralsight and Envato Network. Now, I focus all of my time and energy on this channel and my website Coursetro.com. Come to my discord server or add me on social media and say Hi!
Views: 53526 DesignCourse
Interacting with Geth   The Go implementation of Ethereum
 
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In this tutorial, you will learn how to work with Geth and Mist in order to interact with Ethereum Blockchain. Related links: https://extremesetup.com/ https://github.com/ethereum/go-ethereum/wiki/Installing-Geth https://github.com/ethereum/go-ethereum/wiki/Managing-your-accounts https://ethereum.stackexchange.com/questions/10681/what-are-ipc-and-rpc https://www.rinkeby.io/#stats
Views: 384 ExtremeSetup
packagemain #0: Building gRPC blockchain Server & Client in Go
 
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In this video I am building a gRPC Server & Client in Go, by implementing blockchain service. I am reviewing the following Go packages: https://godoc.org/google.golang.org/grpc https://github.com/golang/protobuf Code: https://github.com/plutov/packagemain Patreon: https://www.patreon.com/packagemain Blog: http://pliutau.com Twitter: https://twitter.com/pliutau
Views: 6125 package main
Anatomy of an Ethereum Client
 
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The overview of the building blocks of an Ethereum client: what any client implementation should have. A practical perspective on how Ethereum works under the hood. Andrei Maiboroda Ethereum – C++ developer
Views: 355 Ethereum Foundation
Developer Event: Learn Ethereum with Vitalik
 
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Please donate to help our coffee addiction! https://blockchain.info/address/13U4gmroMmFwHAwd2Sukn4fE2WvHG6hP8e Timestamps ========= 00:00:00 - 00:05:00 Vitalik talks about DAPPS 00:39:40 - 00:40:54 Chris gives a description of how to setup Ethereum so you can follow along 00:53:00 - 01:07:00 Presentation by Stephan Tual - How to setup AlethZero (Ethereum Client) 01:30:50 Presentation by Vitalik - How to setup a crowdfunding campaign on Ethereum 01:32:00 We talk about contracts for crowdfunding the example code is here https://github.com/ethereum/serpent/blob/master/examples/crowdfund.se 01:33:00 We go in to Crowdfunding App checkout https://github.com/ethereum/dapp-bin/tree/master/crowdfund to follow along 02:09:00 https://github.com/ethereum/pyethereum/ 02:18:00 Break for lunch 02:23:00 Timestamp with Merkle Root Chris gives a pitch of the Blockchain Camera idea More info: http://www.reddit.com/r/worldcryptonetwork/comments/2i2jlr/chris_ellis_proof_of_honesty_the_jesus_attack_the/ 03:43:50 Back after lunch 3:59:00 https://github.com/ethereum/cpp-ethereum/wiki/Solidity%2C-Docs-and-ABI The group begin troubleshooting the task... 04:16:59 Presentation resumes 04:32:20 Vitalik talks about SchellingCoin https://blog.ethereum.org/2014/03/28/schellingcoin-a-minimal-trust-universal-data-feed/ 5:17:00 Q&A begins Details ===== Do you like the bleeding edge? Not afraid of compiling things on Linux or OSX?  Then please RSVP to register your interest in attending this developer-specific event, focused on learning how to program smart contracts in Serpent (https://github.com/ethereum/wiki/wiki/Serpent).  This event will be provided free of charge. Attendance is limited to 30. Unfortunately until we find a sponsor we won't be able to provide refreshments and food, but a cafe is available in the same building with vegatarian options if required. We expect it to last a whole day, with 1/2 dedicated to learn everything about Ethereum, smart contracts and their decentralized GUIs, followed by a mini hackathon until max 7pm. Level of skills required is fairly high as Ethereum is currently rapidly iterating over its software, so things *will break*. Please try and insure you have the client installed on your platform before arriving *especially if you run linux* Installing on OSX: https://forum.ethereum.org/discussion/1388/alethzero-super-easy-install-guide-for-osx  Installing on Linux: https://github.com/ethereum/cpp-ethereum/wiki/Building-on-Ubuntu  Installing on Windows (not recommended, use a VM instead) https://github.com/ethereum/cpp-ethereum/wiki/Building-on-Windows  Ideal background would be 2+ years of web development, although anyone who can program in Python, C++ or Java should feel relatively at home, too. We reserve the right to refuse entry and will validate the guest list to make sure everyone has a good time with peers of the same skill level.  For more info checkout the meetup page: http://www.meetup.com/ethereum/events/194948042/
Views: 23326 World Crypto Network
Ethereum go client (geth) running on Samsung Gear S2 smartwatch
 
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An initial video of the Ethereum go client (geth) running on the Samsung Gear S2 smartwatch. This is a cross-compiled ARM binary running on the Morden test net. Coming very soon - UI client and cross-compiled eth C++ client.
Views: 747 Bob Summerwill
Query Blocks on Ethereum Using Golang
 
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In this video I show you how to query and get information about blocks on Ethereum using Go Source Code: https://github.com/what-the-func/golang-ethereum-query-blocks Check out my other videos and articles http://edzynda.com Follow me on Steemit https://steemit.com/@edzynda 💎►Donate Ether and Ethereum-Based (ERC-20) Tokens 0x146cfed833cc926b16b0da9257e8a281c2add9f3 💎►Donate Bitcoin 1KyZbSeeCWgmeRrUQTTbb3meJEyPCGy3zd 💎►Donate Dash XoZdSzN3hPFksQQZx616A6fGGN22zANpMW 💎►Donate Lisk 16883042352161362207L
Views: 173 What The Func?
S01L02 - Download and install Go Ethereum and MIST
 
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This is a sneak peak from the course: https://www.udemy.com/blockchain-developer/?couponCode=YOUTUBETOM15
Views: 674 Toms Courses
Visualisation of Ethereum's Go Client (February 2018)
 
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Visualisation of Ethereum's Go Client Git History as of 3rd Feb 2018 https://github.com/ethereum/go-ethereum https://github.com/acaudwell/Gource
Views: 20 Paul Balaji
Import Geth   Ethereum from Go and beyond - Péter Szilágyi
 
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Teaser presentation about using go-ethereum as a library in other projects: running embedded nodes; interfacing native DApps; Android and iOS support. https://ethereumfoundation.org/devcon/?session=25-import-geth-ethereum-from-go-and-beyond
Views: 2559 Ethereum Foundation
How to create a private ethereum network
 
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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 andlders 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. Path for the ethereum data fo
Views: 19814 Prabhat Sharma
Go Ethereum Episode 1: Introduction and ecosystem
 
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Episode 1: Introduction and ecosystem By Jeffrey Wilcke and Stephan Tual For more information about Ethereum please visit https://www.ethereum.org For our forums including help on the Go Ethereum client and Mutan, please visit: http://forum.ethereum.org/
Views: 10917 Ethereum
2 How to create a local private multi-node Ethereum network (geth console)  - Ethereum from scratch:
 
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Part two of my hands on tutorial series on Ethereum. In the first video we installed Geth - in this one we actually get our hands dirty and start using it. We are just creating a private local ethereal network - with two nodes - I show how to initialise a new blockchain from a sample genesis block, how to start the javascript console and some basic commands to get you started. I start a miner, show the block height increasing and that the blockchain is being communicated across both separate nodes. This is intended to be a very hands on tutorial so please follow along. ______________________________________________________________ Here is the script from the session. NOTE angle brackets i.e. the GREATER THAN SYMBOL are not allowed in the description so I've replaced with &gt - you need to replace with the GREATER THAN symbol when running the command 0. Set up the environment cd ~ mkdir ethereum echo 'export ethereum_home=/Users/mattthomas/ethereum' (double right arrow) ~/.bash_profile ~/.bash_profile cd ethereum vi $ethereum_home/genesis.json (pasre this with cmd v in edit mode) { "nonce": "0x0000000000000042", "timestamp": "0x0", "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000", "extraData": "0x0", "gasLimit": "0x8000000", "difficulty": "0x400", "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000", "coinbase": "0x3333333333333333333333333333333333333333", "alloc": { } } Save with esc !wq 1. initialise the block geth --datadir "$ethereum_home/youtube1" init "$ethereum_home/genesis.json" 2. start the console geth --datadir "$ethereum_home/chain5" console 2 &gt console.log 3.create a 2nd node geth --datadir "$ethereum_home/youtube1-a" init "$ethereum_home/genesis.json" 4. Start on a different port and specify networkid geth --datadir "$ethereum_home/youtube1-a" --port 30304 --nodiscover --networkid 1234 console 2 &gt console.log 5. get the admin.nodeInfo enode from the second instance and copy it into admin.addPeer in the first node 6. Restart specifying IPC path geth --datadir "$ethereum_home/youtube1-a" --port 30304 --nodiscover --ipcpath "$ethereum_home/youtube1-a/geth.ipc" --networkid 1234 console 2 &gt console.log 7 run get attach to attach another window to the node using the pic file geth attach ipc:$ethereum_home/youtube1-a/geth.ipc 8 Key commands from the javascript console Personal.newAccount() (add password) Miner.start(1) - start mining eth.blockNumber - current block height eth.getBlock(number).miner - miner of block at that number eth.getBalance(account address) - current balance of that account
Views: 28529 Matt Thomas
Installing The Parity Ethereum Client | Blockchain
 
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In this video, I go over how to install the Parity ethereum client. Check out my other videos and articles http://edzynda.com Follow me on Steemit https://steemit.com/@edzynda 💎►Donate Ether and Ethereum-Based (ERC-20) Tokens 0x146cfed833cc926b16b0da9257e8a281c2add9f3 💎►Donate Bitcoin 1KyZbSeeCWgmeRrUQTTbb3meJEyPCGy3zd 💎►Donate Dash XoZdSzN3hPFksQQZx616A6fGGN22zANpMW 💎►Donate Lisk 16883042352161362207L 💎►Donate IOTA SRZWULMJI9WJFVWDIVXXMVWHVVJAKMAXKMFOINQGEZXNJYLRSHPXBE9PHQDUVIRESEUZSYJBGGKLBMEYIJOKIOIXBU
Views: 2036 What The Func?
Ethereum - Getting started with Geth
 
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Getting started with Ethereums Geth
Views: 51207 Sid Harder
Getting started on Ethereum for Go programmers - GopherCon SG 2017
 
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Speaker: Dave Appleton Learn how a Go programmer can get started with the hottest blockchain technology on the block with an easy tutorial that will demonstrate creating a simple smart contract and accessing it from a Go server as well as an Ethereum Wallet. Event Website: https://2017.gophercon.sg Produced by Engineers.SG
Views: 3637 Singapore Gophers
Interact With Ethereum Smart Contracts Using Golang | Blockchain
 
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In this video, I discuss how you can interact with a deployed Ethereum smart contract using Go. Source Code: https://github.com/what-the-func/ethereum-contracts-golang Solc Installation: https://solidity.readthedocs.io/en/develop/installing-solidity.html Check out my other videos and articles http://edzynda.com Follow me on Steemit https://steemit.com/@edzynda 💎►Donate Ether and Ethereum-Based (ERC-20) Tokens 0x146cfed833cc926b16b0da9257e8a281c2add9f3 💎►Donate Bitcoin 1KyZbSeeCWgmeRrUQTTbb3meJEyPCGy3zd 💎►Donate Dash XoZdSzN3hPFksQQZx616A6fGGN22zANpMW 💎►Donate Lisk 16883042352161362207L
Views: 1608 What The Func?
Ethereum Course - s3l5 - Configuring, Running & Working With The Go Ethereum Client
 
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Whatever your motivation to start on your journey with developing decentralised Blockchain apps, you’ve come to the right place to get started on it. Become A Decentralised App Developer ### Course ### https://www.udemy.com/ethereum-developer/ ### Get this course for $10 ### http://vomtom.at/ethereum-developer-course/
Views: 289 Toms Courses
geth - ethereum client / ETH wallet для Linux, установка и перевод монет из консоли
 
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Сборка из исходного кода geth, как работать с ним, отправка денег, обновление все через консоль!
Views: 74 BlodTor
1 How to install Geth client on (Mac) - Ethereum from scratch(1).mp4
 
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1 How to install Geth client on (Mac) - Ethereum from scratch(1).mp4
Views: 255 James Coin
Set up a private Ethereum node on Linux
 
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This lesson is part of our "Become a Blockchain Developer with Ethereum and Solidity" online course on Udemy. Go to https://www.udemy.com/getting-started-with-ethereum-solidity-development/?couponCode=YOUTUBE to learn what to do with this node.
Views: 156 ChainSkills
Ethereum Setup On Windows- How to Install Geth on Windows
 
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Visit our website for more details http://www.tutorialsdiary.com This video show how to install Geth on windows. Below are the options to install that. Go to below link and download the installer https://ethereum.github.io/go-ethereum/downloads/
Views: 280 Tutorials Diary
Ethereum Sharding Implementation With Prysmatic Labs' Raul
 
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Prysmatic Labs is building out the first sharding implementation for the Geth (go-ethereum) client, allowing the system to process transactions at over 10x - 100x of its current speed! In this video we chat with Raul Jordan, who is the co-lead at Prysmatic Labs. ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● Things discussed in this episode: Background [ 0:47 - 2:01 ] Prysmatic Labs Overview [ 2:02 - 5:48 ] Sharding Overview [ 5:49 - 12:09 ] Sharding In-Depth [ 12:10 - 22:54 ] Prysmatic Sharding approach [ 22:55-24:41 ] Other Sharding Approaches [ 24:42 -31:16 ] Research Funding Space [ 31:17 - 34:02 ] Scalability Space [ 33:03-37:59 ] How To Get Involved? [ 38:00-40:13 ] ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● Links mentioned in this episode: Prysmatic Labs Website : https://prysmaticlabs.com/ Prysmatic Labs Github : https://github.com/prysmaticlabs/geth-sharding Prysmatic Labs Chat (Gitter) : https://gitter.im/prysmaticlabs/geth-sharding?source=orgpage ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● Subscribe to "Inchained" : http://youtube.com/arnavvohra7 for future videos on Blockchain & Cryptos. ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● 👬Groups: Facebook page : https://www.facebook.com/inchained/ Telegram group : https://t.me/inchained ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● ♨️Social: Twitter profile : https://twitter.com/arnav_vohra Quora profile : quora.com/profile/Arnav-Vohra-3 Medium profile : https://medium.com/@arnav_vohra Steemit profile : https://steemit.com/@arnavvohra Email : av7tv.channel@gmail.com ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● If you appreciate my work, then please consider making a donation at the address below: ETH Wallet Address: 0x14466d035Ed00533bA245E0E69C04Fa4ACa949e7 ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● DISCLAIMER: This is NOT financial advice. This is just my opinion. I am not responsible for any investment decisions that you choose to make. Thank you for watching.
Views: 1052 Inchained
03 - Синхронизация Ethereum клиента. Что делать, если не видны транзакции?
 
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Запуск ethereum кошелька и его синхронизация. Почему в Ethereum Wallet не видны транзакции и куда пропали мои деньги. Диагностика рассинхронизации с помощью блокчейн-экспоррера и geth JavaScript CLI. Объяснены такие термины как Transaction, Block, Receipt, TxHash, GasPrice, BlockHeight Предыдущие видео 01 - Установка кошелька Ethereum Wallet https://www.youtube.com/watch?v=rVkvW2xhOgY&t=21s 02 - Синхронизация Ethereum клиента и её режимы https://www.youtube.com/watch?v=qeIJaGKIkGA Ресурсы, о которых шла речь в видео: - Ethereum blockchain explorers: https://etherscan.io , https://etherchain.org - Ethereum колешёк Mist: https://github.com/ethereum/mist/releases - Ethereum клиент Geth (go-ethereum): https://github.com/ethereum/go-ethereum
Views: 1927 OnGrid
Ethereum in Depth: How is Ethereum Structured? - Connecting to Ethereum from your own app
 
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DOCUMENTATION: http://www.ethdocs.org/en/latest/ethereum-clients/choosing-a-client.html GETH DOWNLOAD: https://www.ethereum.org/cli JSON RPC: https://github.com/ethereum/wiki/wiki/JSON-RPC YELLOW PAPER: https://github.com/ethereum/yellowpaper VISUALIZATION INSPIRATION: http://www.complexitygraphics.com In this video I talk about how you can interface with the ethereum network from your own app. (In this case a macOS app where we can make a visual block explorer.) We first get a client running. (There are several we could choose from) We use geth in this video. Then we communicate with the client as it runs in the background using JSON RPC. If you want to tip this video here is an ethereum address for this video: 0x0bb45e263cc428f185bed5d47cbe892aff79f2d4
Views: 5448 Kevin Healy
Go Ethereum Episode 3: Writing a meta-coin smart contract
 
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Episode 3: Writing a meta-coin smart contract By Jeffrey Wilcke and Stephan Tual Companion blog article: http://hidskes.com/blog/2014/05/21/ethereum-dapp-development-for-web-developers/ For more information about Ethereum please visit https://www.ethereum.org For our forums including help on the Go Ethereum client and Mutan, please visit: http://forum.ethereum.org/
Views: 6249 Ethereum
BLOCKCHAIN APPS IN GO - Build Your Own Blockchain App
 
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Ever wonder how blockchains work? Why is it that many popular blockchains are using Go? In this talk we will explore how blockchains work at a protocol level, what Go libraries you can use to interact with them. By the end of the talk you will be able to build your first Blockchain App. EVENT: GopherCon UK 2018 SPEAKER: Matthew Campbell PERMISSIONS: Original video was published with the Creative Commons Attribution license (reuse allowed). CREDITS: Original video source: https://www.youtube.com/watch?v=BzDUl9UrLRg
Views: 5309 Coding Tech
Build An Ethereum Hello World Blockchain Application In A Private Network
 
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Ethereum Blockchain Developer: Build Projects Using Solidity - is one of the largest, most in-depth ethereum development courses online. The curriculum contains a number of practical exercises, which will help you put all the knowledge you’ve learned into practice to create something of value. By taking this course you’ll get to work with the ethereum blockchain on a practical level, with step-by-step instructions guiding you through the entire process. This course embodies our ethos of learning by doing, as you’ll have projects created of your very own by completing this course. You’ll gain a step-by-step blueprint within this course, providing you with all the knowledge you need, in order to successfully build your own projects as an ethereum blockchain developer. Furthermore, you can be assured that in this course we’ll be deep diving into all of the key aspects in relation ethereum blockchain development, that includes; hands-on developing with solidity, learning how to use core development tools such as Mist, Geth, and Ethereum Studio, advanced Web3 development, how to de-bug your decentralised application, and so much more! You can be assured you’ll have access to both of your instructors throughout the course on-demand. Remember, you’ll gain lifetime access to this course which includes all future updates free of charge, and there’s a 30 day money back guarantee with no questions asked. // TIMESTAMPS // 00:00 - Quick Introduction Before Commencing With This Course 03:23 - Summary To What You’ll Be Creating In This Section 05:24 - Install The Go-Ethereum Client And Mist Browser 10:26 - Configure A Private Network And Mine Some Ether 17:35 - Deploy Your Hello World Application Into Your Private Network 22:36 - Here’s What You Need To Start Doing Next // FREE BITCOIN WEBINAR // Join: http://bit.ly/2AR6v2v // FULL COURSE HERE // View: https://www.udemy.com/blockchain-developer/?couponCode=YOUTUBE10 // CRYPTOCURRENCY & BLOCKCHAIN TUTORIALS // Sign-Up: https://www.b21block.com // FOLLOW ME ONLINE // Subscribe: https://youtube.com/c/RavinderDeolB21Block?sub_confirmation=1 Like: https://facebook.com/B21Block
Ethereum Node Installation on Linux
 
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This video will demonstrate how to install an Ethereum node on Linux. In our example, we are going to install an Ethereum node on a Computer running Ubuntu Linux, version 17.10. » TUTORIAL: • http://techexpert.tips/ethereum/installing-ethereum-node-linux/ » EQUIPMENT LIST: • Power supply 500w - http://amzn.to/2zwjbf0 • Power cord - http://amzn.to/2ze41bp • Mother Board - http://amzn.to/2zwvJDn • Processor - http://amzn.to/2y0cXj9 • Hard disk - http://amzn.to/2rlDB7p » COMMANDS: # apt-get update # apt-get install build-essential # mkdir /downloads # cd /downloads # wget https://dl.google.com/go/go1.9.3.linux-amd64.tar.gz # tar -C /usr/local -zxvf go1.9.3.linux-amd64.tar.gz # vi /etc/profile.d/go.sh #/bin/bash export GOROOT=/usr/local/go export GOPATH=$GOROOT/work export PATH=$PATH:$GOROOT/bin:$GOPATH/bin # reboot # env | grep -E “(GO|PATH)” # cd /downloads # git clone https://github.com/ethereum/go-ethereum # cd go-ethereum # make all # cd build/bin/ # install -sv * /usr/local/bin/ # geth
Views: 804 VirtualCoin
Visualisation of Parity's Ethereum Client (February 2018)
 
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Visualisation of Ethereum's Go Client Git History as of 4th Feb 2018 https://github.com/paritytech/parity https://github.com/acaudwell/Gource
Views: 31 Paul Balaji
Create Ethereum Private Blockchain in less than 30 minutes!
 
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Develop Ethereum Private Blockchain in less than 30 minutes. You 1. Install Go-Ethereum (geth) client. 2. Create two EOA Accounts. 3. Create Genesis File 4. Seed private blockchain network with genesis block 5. Mine new blocks 6. Check balance to your account
Ethereum APB Development and Testing Demonstration
 
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This video is a demonstration of packaging up the golang client for the Ethereum blockchain into an APB. Relevant links: https://github.com/fusor/catasb/ https://github.com/ethereum/go-ethereum https://hub.docker.com/r/ethereum/client-go/ https://github.com/dymurray/ethereum-console-apb
Views: 35 Dylan Murray
How To Create An Ethereum Account
 
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How To Create An Ethereum Account http://www.Blockgeeks.com Today, we'll be learning about Ethereum accounts and the math behind creating one. To interact with Ethereum in any meaningful way, you need to have a user account. The simplest way to create an account on Ethereum is by using the Mist e-theorem wallet, which is an application that allows you to manage and interact with multiple Ethereum accounts. Launching the application will sync to the black chain, meaning it download the entire block chain data to your computer, which can take upwards of 100 gigabytes, so be warned. when you first launch the application, it will walk you through creating an account and setting a password for it. It's very important that you never forget this password to maintain access to the account, there is no forgot your password option. Your new account then shows up in the wallet section of the app and it has a balance of zero. Clicking on the account will give us more details about it and provide some options for putting some real ether into it. The main thing to note is the public address, which you will share with other people. Another way to create an account is via the command line. If you download the Go Ethereum Client of GETH, can simply invoke GETH account new to create an account. This will prompt you to enter a password which again you should never forget and at the end it prints out the public address of your new account. You can create as many accounts as you like and you can view them all by typing GETH Account List. Note that this also shows the account we created in Ethereum Wallet. Another interesting thing to note is that we don't even have to be connected to the block chain or even the internet to create an account. It can happen entirely offline. How is this possible? We know what we need to generate a cryptographic key pair which consists of a public and private key. But don't we have to register this key pair somewhere? What if someone else is already using this key pair? Even though it's technically possible, it is highly, highly, improbable. Let's talk about why. There are three steps involved in generating an Ethereum public address. The first step is to generate a private key which is just a random number represented by 256 bits. The second step is to use elliptic curve cryptography to generate a 512 bit public key. Each private key maps to exactly one public key. The third and final step is to calculate the Keccak256 has of the public key and then keep the right most 160 bits of the Keccak256 hash to get the public address. This is essentially a mapping of 256 bit private keys to 160 bit public addresses. Meaning each account has more than one private key. Security is achieved in the randomness of selecting the private key. As long as you get something sufficiently random and not like one or two, it's highly unlikely that someone else would also generate the same private key. To give you a sense of how many possible private keys there are let's take a look at some numbers. There are 10,000 possible four digit iPhone passcodes. So if someone were to try to break into your phone by guessing each passcode, it would be pretty hard because they would have a one 1 in 10,000 chance of getting it right. But it would be fairly easy for a computer to try 10,000 passcodes pretty quickly. Apple also claims a 1 in 50,000 chance of a fingerprint ID matching a strangers and a 1 in a million chance of a face ID matching making your phone more secure. At a few orders of magnitude larger to we have seven and a half billion humans on the planet and we estimate that the big bang took place some 14 billion years ago. Larger still we estimate around 400 billion different stars just in our own galaxy. Many, many orders of magnitude larger still, we estimate that there are around seven times 10 to the power of 27 atoms in the average adult male weighing 150 pounds. Many orders larger still we estimate that are 1.3 times 10 to the power of 50 atoms in the earth. And even larger still, we come to the total number of possible private keys using 256 bits, one times 10 to the power of 77. This number is so big that if we took all the numbers we just talked about before and added them all up, they still wouldn't even be half of this number. It's unbelievably big. So the chances of someone randomly generating the same private key is sufficiently that it's practically impossible. Staging a brute force attack by trying each possible private key would also require an unachievable amount of computational power, like a planet sized computer working since the beginning of time. To learn more about Ethereum accounts and using wallets, check out our online guides and courses at Blockgeeks.com. Thank for watching and see you next time.
Views: 47214 Blockgeeks
Ethereum APB Development and Testing Demonstration
 
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This video is a demonstration of packaging up the golang client for the Ethereum blockchain into an APB. I apologize for the strange flickers on the top of the screen. My recording software chose to be unhelpful and that was the best I could get. Relevant links: https://github.com/fusor/catasb/ https://github.com/ethereum/go-ethereum https://hub.docker.com/r/ethereum/client-go https://github.com/dymurray/ethereum-console-apb
Views: 174 Automation Broker
1. Sharding client implementation updates - The Ethereum Sharding Meeting #2 - Berlin
 
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The Ethereum Sharding Meeting #2 - Berlin 1. Sharding client implementation updates Resources: https://notes.ethereum.org/s/B1-7aivmX Trinity (Ethereum Foundation) Diamond Drops (Drops of Diamond) Harmony (Ethereum Foundation) Nimbus (Status.im) geth-sharding (Prysmatic Labs) Parity (ParityTech) PegaSys (ConsenSys) --- Video: Anton Tal @antontal Audio: Matteo Tambussi @matlemad Producer: Chris Hobcroft @chrishobcroft Executive Producer: Doug Petkanics @petkanics For @livepeertv on behalf of @LivepeerOrg
Views: 753 Ethereum Foundation
Swarm and the Ethereum Name Service - Viktor Trón & Nick Johnson, Ethereum
 
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First of all we are really sorry for the lack of video - we used the slides instead. Both our cameras stopped working at different times during the event and we had to use the slides as background rather than video from the meetup. Luckily the sound recorder was still working and we have sound throughout the presentation. The quality sound quality on the questions in the Q&A is not great either but we'll do our best to improve on it next time. Viktor Trón is a core developer of the go client working for the Ethereum Foundation, mainly on Swarm. He strongly believes in decentralization supported by crypto 2.0 vision is a conduit for peaceful social change and brings new momentum towards a free voluntary society. A long-time contributor to the open source community he advocates free software, open source, open data and open collaboration models.He is against against copyright and patent laws. Viktor worked on Machine learning, AI, speech, language technology and big data. Swarm is a server-less hosting and delivery solution that acts a native base layer service of the Ethereum web 3 stack. It allows participants of the Ethereum ecosystem to efficiently pool their storage and bandwidth resources in order to provide a robust distributed storage platform and content distribution service. Users can host dapps, store media, databases, blockchain and state, public archives or private backups. Due to Swarm being a decentralized peer-to-peer network, it is DDOS-resistant, zero-downtime, fault-tolerant and censorship-resistant as well as self-sustaining due to a built-in incentive system. Swarm is designed to deeply integrate with Ethereum and gives a unique setting to support the web3 vision of the internet where browsing no longer just clicking through links and rendering content but where contractual interactions are the norm. In this talk, we demonstrate all the features of the web3 experience emerging from this synergy such as name services, versioning and update, contract verification, IP attribution and licensing, insuring availability and auto scaling for popularity. We’d like to thank the London Ethereum Meetup (http://www.meetup.com/ethereum/) event sponsors and organizers: B9lab: http://b9lab.com/ BTL: http://btl.co/ Slock.It: https://slock.it/ CryptoCompare: https://www.cryptocompare.com/ Havas Media: http://www.havasmedia.com/
Views: 5409 Ethereum
Nimbus - a sharding Ethereum client for mobile and IoT - Jacek Sieka - FOSSASIA 2018
 
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Speaker: Jacek Sieka, Head of Research Development Status.im Info: https://2018.fossasia.org/event/speakers.html#jacek-sieka3384 Nimbus is an exciting and experimental lightweight client for the Ethereum network that focuses on next-generation Ethereum technologies and running on resource-constrained devices, such as mobiles. During the talk, we’ll go over a number of topics: Anatomy of an Ethereum client Sharding, and what it means for the implementation A little bit about Nim, the language it’s implemented in Status Open bounty - get rewarded for your OSS contributions Room: Event Hall 2-1 Track: Blockchain Date: Friday, 23rd March, 2018 Event Page: http://2018.fossasia.org Follow FOSSASIA on Twitter: https://twitter.com/fossasia/ Like FOSSASIA on Facebook: https://www.facebook.com/fossasia/ Produced by Engineers.SG
Views: 130 FOSSASIA
Blockchain Ethereum Training  demo - ఎథిరియూమ్ బ్లాక్ చైన్ డెమో  Vlr Training 9059868766
 
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Blockchain Ethereum Training demo ఎథిరియూమ్ బ్లాక్ చైన్ డెమో Vlr Training 9059868766 Subscribe to our Channel https://goo.gl/G3cB5Q Decentralized Money Transformation in trading units Cryptography and Crypto-currency Anonymity and Pseudonymity in cryptocurrencies Digital Signatures Cryptocurrency Hash codes Distributed networks Exploring Blockchain Introduction to Blockchain. Why Blockchain is crucial? Key vocabulary while discussing Blockchain Distinction between databases and blockchain Explaining Distributed Ledger Blockchain ecosystem Blockchain structure Working of blockchain technology Permissioned and permission-less blockchain Bitcoin & Blockchain Bitcoin and its History Why use Bitcoins? Where and how to buy bitcoins How to store bitcoins? How and where to spend bitcoins? Selling bitcoins Bitcoin transactions How bitcoin transactions work What happens in case of invalid transactions Parameters that invalidate the transactions Scripting language in bitcoin Applications of bitcoin script Nodes and network of bitcoin Various roles you can play in Bitcoin Ecosystem Ethereum What is Ethereum? What is Ether? How to use Ethereum? The Ethereum ecosystem, DApps and DAOs How Ethereum mining works Learning Solidity Contract classes, Functions and conditionals Inheritance & abstract contracts Libraries Types & Optimization Global Variables Debugging Future of Ethereum Ethereum Private Blockchain and Smart contracts Private and public blockchain Various blockchain setup platforms Using Ethereum to setup private blockchain Steps to build a blockchain solution. Smart contract on Ethereum Compile, deploy and instantiate contracts Configuring, running and working with the go-Ethereum client Account management and mining Understand the different stages of a contract deployment How to interact with a contract once deployed? Solidity basics Introduction to Solidity Learning Solidity Basics (version pragma and comments) Structure of a contract Keywords Data Structures (Arrays, Mapping, Structs) Data Types (signed and unsigned int, strings, boolean, address) Looping and Conditional Statements Inheritance Polymorphism Advance Solidity Imports and libraries Extended String Functionality and Bytes Custom Modifiers and Error Handling Creating and deploying your own tokens Event logging, handling Parameter Mapping and Returning multiple variables State Modifiers (Pure/View/Constant/Payable) Transferring Ether between contracts (ERC20 and ERC223) Deployment Contract ABI Introduction to the Truffle Framework Communicating between smart contracts and HTML pages using web3.js and Metamask Setting up event driven Interfaces Client side signing and remotes nodes for Dapps Deploying DAPP using Truffle and Web3J Creating a project structure on Truffle Writing the smart contract Compiling and migrating the smart contract Publishing the DApp How web3.js and truffle work with ReactJS Deploying smart contract services on the test blockchain network Running the DApp on the Ethereum node using Metamask Hyperldger Fabric architecure Introduction to hyperledgerco Hyperledger architecture Membership Blockchain Chaincode Consensus Consensus & its interaction with architectural layers Application programming interface Application model Network topology Exploring Hyperledger frameworks Hyperledger Fabric Hyperledger Indy Hyperledger Iroha Hyperledger Sawtooth ********************************************************************* from Hyderabad India with Real Time Experts. Mail us your requirements to ramesh.vch@gmail.com Contact us 9059868766 For more Details Click here http://www.vlrtraining.in/ ********************************************************************* 1.Digital Marketing Demo https://goo.gl/XPd1sQ Register now:https://goo.gl/GBWfFc 2.DataScience Demo https://goo.gl/joVqyi Register Now:https://goo.gl/76rENn 3.AWS Demo by Chandra https://goo.gl/GZ7TB2k Register Now: https://goo.gl/d5PWZ6 4.Angular JS Demo 9059868766 https://goo.gl/5qbjbK Register now:https://goo.gl/QZ4Qa7 RPA Tools 4.UI Path Demo https://goo.gl/SV21G1 Register now https://goo.gl/oeg1XN 5.Blue Prism Demo https://goo.gl/pPJ6oc Register now https://goo.gl/LSLLKE 6.Automation Anywhere Demo (Morning Batch) https://goo.gl/5JwA3c Register now https://goo.gl/kpjnmg Automation anywhere Demo (Evening Batch) https://goo.gl/eQc8VE Register now https://goo.gl/kpjnmg 7.Oracle Web Logic Server Demo https://www.youtube.com/watch?v=CZd9X_-YZ-c ----------------------------------------------------------------------------------------- Like us on Facebook page VLR Training https://www.facebook.com/VLRtrainingHyderabad/ ----------------------------------------------------------------------------------------- Follow us on Twitter https://twitter.com/VlrTrainingKphb _
Views: 445 VLR Training
devcon2: Status, an Ethereum light client for Android & iOS
 
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Jarrad Hope presents Status, an open source Ethereum light client for Android & iOS at Devcon2 in Shanghai. Find out more: https://status.im. We'd love to hear your feedback! Join our Slack community: http://slack.status.im/ or follow our Twitter for updates: https://twitter.com/ethstatus
Views: 6371 Status
Joel's First Time Using the Ethereum AlethZero Client
 
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Joel Dietz and Joris Bontje explore the AlethZero Ethereum Client (C++ Proof of Concept v3.11). Ethereum - https://www.ethereum.org/ Joel Dietz - https://twitter.com/fractastical Joris Bontje - https://twitter.com/mids106 Music: Electrodoodle by Kevin MacLeod (incompetech.com)
Views: 10968 EtherCasts
Intro to Ethereum Dapps
 
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Intro to Etheruem Dapps https://blockgeeks.com/ In this lesson, we’ll learn about building decentralized applications, or dapps. But first, let’s take a minute to appreciate the difference between dapps and regular web applications In traditional web application architecture, there is a frontend client and a backend server. The frontend is written using HTML/CSS/JS and the backend is written in a framework of your choice like Rails, Node or Django. The front and backend interact with each other by sending JSON messages over HTTP. There is typically a hosting service where your backend would be running like AWS. With decentralized applications, there is also a frontend client and a backend server. The frontend is written using the same HTML/CSS/JS, but for the backend we use a blockchain like Ethereum. The front and backend would still be interacting with each other using JSON messages. This architecture is a bit oversimplified, but the point is that the end-user will not be able to tell whether they are interacting with a dapp or any other regular web app; the change would be invisible and in the background. The traditional client-server architecture is so common that its rarely revisited. Should we still be building apps this way knowing everything we know now? Let’s take a look at some of the issues with the traditional client-server architecture. The first issue is that your server is running on a centralized hosting service who you outsource your hosting needs to. As more and more people around the world use the same popular hosting service, it becomes a single point of failure for the entire internet. Think about it: to take down all the sites that are running their backend on this popular hosting service, all you would have to do is disrupt this one provider’s infrastructure, in order to take down potentially half the internet! This isn’t a very resilient architecture for the web. It’s also an increasing amount of pressure on a single organization to expect them to build and maintain all this infrastructure for the entire world. Centralized servers are also easy to censor and control. Taking down a web application is as simple as removing it from the centralized server. This can happen at the state level where government agencies request hosting providers to take down certain websites they may not like or agree with. But if your application was running everywhere, taking it down would not be as straightforward. To censor a blockchain application, you would have to takedown all the network nodes simultaneously. The Ethereum blockchain currently has over 25,000 nodes spread around the world. When we increasingly rely on centralized services, we create honeypots of data for attackers. We have seen this time and time again with various hacks, the most recent being the Equifax hack. Equifax is a centralized credit reporting service, and they were responsible for maintaining millions of user’s personal credit information including social security numbers. Millions of people put their trust in this one organization to keep their data safe from getting into the wrong hands. As a potential attacker, its very lucrative to hit just one database and get access to millions of people’s sensitive data that you could then use to open credit cards for example. With a decentralized database like a blockchain, data attacks are not as trivial as getting access to a single database. Another issue with the traditional client-server architecture is that of data integrity. Along with your backend server, the database powering your application is also likely running on the same hosting service. Assuming you trust your hosting provider 100%, this isn’t an issue. But how can you be sure? What’s stopping an unauthorized employee at the hosting service from making changes to the data in your database? And what if your database contained people’s sensitive information, like bank account balances? That’s an awful lot of trust to put into any single organization with the most valuable part of your application: your data. In fact, data is so valuable that many companies are built on the very premise of selling your data. They do this by creating a centralized website for users to interact with, by either posting photos or entering search words. They record your interactions to a database, and then sell your interaction data to advertisers for lots of money without your knowledge or consent. Think about that: all the data that is generated by everyone in the world is monetized by only a handful of companies. With decentralized applications, users can regain control of their data and decide for themselves whether to monetize it by choosing to sell to advertisers or not. And they get to keep the money, not some other company. For more check out https://blockgeeks.com/
Views: 27681 Blockgeeks
Developers, Developers, Developers – Ethereum for all your networks!
 
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Péter Szilágyi Ethereum – Go team lead
Views: 2082 Ethereum Foundation