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catalogue Installation environment 0. Prerequisites: 1. Download Fabric (version 2.3.3) two   Installation example, binary and Docker image (see method 3 directly) (1) Method 1 (unsuccessful): execute directly according to the official website (2) Method 2 (unsuccessful): directly execute the bootstrap.sh script  ， Same error ...

First clarify the network steps of a single machine: Generate organization Generate certificates for your organization Generate Genesis block Generate channel Generate node join channel Set anchor node Then find out what steps in the script are started through those instructions: Let's first look at the startup parameters of a network ...

Chapter I cryptography Section 1 Introduction to password 1, Why encrypt? Ensure data security Xiao Ming – > Xiao Hong: After school, I'll see you in the small tree forest at the back door of the school Key: + 2 Ciphertext: let him put in Xueen instead. Run Ruxue. Excuse me, the school. Um, after the school gate is drawn into a ...

Solid learning record Chapter 1 creating a zombie factory The second chapter sets up the attack function of zombies The third chapter is the basic theory required for writing DAPP Chapter IV improving zombie function preface There are many things during the National Day holiday. The update was delayed for two days. Please forgive ...

This article refers to the blog link: https://blog.csdn.net/qq_41966713/article/details/103882422 Quick operation The premise is to download the Geth client and create the genesis block configuration file genesis.json Open private chain client """ # First, initialize the genesis block configuration file genesis.json, and save the data to ...

ERC-20 Introduction to ERC-20 Digital encrypted currencies can be divided into native and token currencies. ERC (Etherum Request for Comments)It is the agreement proposal submitted by the Taifang developer for tokens, and 20 represents the number of the agreement. All tokens that meet the ERC-20 standard are immediately compatible with the Ta ...

In this tutorial, we will learn how to create a Maven-managed Java Ethernet project in Eclipse, connect Ethernet nodes using the web3j library, make JSON-RPC API calls, and display the results. Learn in the language you are familiar with and develop in Taifang DApp: Java | Php | Python | .Net / C# | Golang | Node.JS | Flutter / Dart web3j is ...

brief introduction In the previous article, we introduced the use of jstat tool in JDK14. In this article, we will further explore the use of jstack tool. jstack tool is mainly used to print java stack information, mainly java class name, method name, bytecode index, row number and other information. More highlights: Blockchain from getting st ...

The TronTool development package is suitable for rapidly increasing the support ability of Tron/USDT-TRC20 digital assets for PHP applications, that is, it supports the application scenarios using its own Tron blockchain nodes, and also supports the lightweight deployment scenarios based on the official public API services of Tron. Official dow ...

Truffle development framework provides two methods for testing Ethereum smart contract: solid testing at blockchain level and JavaScript testing at DApp level. In this tutorial, we will introduce the purpose, difference and application scenario of these two testing methods of Ethereum smart contract, and learn how to use the solid test case and ...