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    Blockchain For Beginners:build Certificate Registration DApp

    Description

    What we cover

    • We briefly cover the philosophy of the blockchain and Ethereum.
    • Then we will explain how blockchains work, what is Decentralized App and how smart contract communicates with DApp
    • We setup the easy development environment, including tools that can be used with minimum steps
    • And the biggest part of the course is dedicated to guiding you through a simple Decentralized App

    Some of the keyword definition:

    Blockchain is a growing list of digital pieces of information which are linked using cryptography. It is an open, distributed ledger that can record transactions between two parties efficiently and also in a verifiable and permanent way.

    Decentralized applications (dApps) are applications that run on blockchain rather than a database.

    Smart contract is defined as pieces of computer code that self-execute when predetermined conditions are fulfilled. The results of the transaction will be written onto a distributed ledger or blockchain.

     

    We covered the following concept:

    • Ethereum
    • Account
    • Gas
    • Smart Contract
    • Decentralized App
    • Blockchain
    • Bitcoin
    • Solidity
    • Web3.js
    • Ropsten Testnet

    What tools and libraries are used?

    • Ethereum
    • The Metamask Chrome extension
    • The Solidity smart contract language (0.5.0)
    • The Web3.js(Web3 1.0.0)
    • The Ganache Ethereum node emulator
    • Github
    • Visual Studio Code (text editor)
    • The Ropsten test network

    All our codes are stored in Github and the solidity code will be stored as .sol file.

    • Lesson 2 unit 1: @hashcademy-> choose certificate_dapp -> choose branch master
    • Lesson 2 unit 2: @hashcademy-> choose certificate_dapp -> before modify javascript:  choose branch 1a, after modify javascript: choose branch 2
    • Lesson 2 unit 3: @hashcademy-> choose certificate_dapp -> choose branch 3
    • Lesson 2 unit 4: @hashcademy-> choose certificate_dapp -> choose branch 4
    • Lesson 2 unit 5: @hashcademy-> choose certificate_dapp -> choose branch 5

     

    Who this course is for:
    • Anybody with a little bit of website development experience who want to understand Ethereum and how to build DApps with it

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