This article walks through setting up a local Ethereum testnet using Ganache, configuring a Java project with Web3j, and implementing code to query the network and perform a signed Ether transfer, providing step-by-step instructions, code snippets, and screenshots for beginners.
This guide walks you through understanding blockchain contracts, setting up a React‑Vite‑Tailwind front‑end, installing ethers and Hardhat, writing and testing a Solidity contract, configuring Hardhat, deploying to Goerli via Alchemy, and integrating the contract with a React application.
This article explores the rise of virtual clothing, its technological foundations, historical milestones, applications such as NFTs, virtual fashion shows, and AR try‑ons, and examines why the trend resonates strongly with younger consumers while highlighting sustainability and future challenges.
This article provides a detailed forensic analysis of a Flashbots MEV bot attack on Ethereum, describing the underlying PBS protocol flaw, the malicious validator’s multi‑stage preparation, the sandwich‑style exploit, the financial impact, and recommended code‑level fixes to prevent private transaction leakage.
This article examines the multi‑stage Tornado Cash governance attack, explaining the proposal mechanism, token‑locking logic, creation of zombie accounts, use of create/create2, malicious self‑destruct functions, delegatecall exploitation, and the resulting token theft, while highlighting key security lessons for blockchain governance.
This article provides a comprehensive technical analysis of the March 2023 Euler Protocol flash‑loan attack, describing the vulnerability in the donateToReserves function, step‑by‑step attack execution, on‑chain data, reproduced exploit code, simulation of attack parameters, and broader security implications for DeFi platforms.
This article explains what Web3 is, its historical context compared with Web 1.0 and Web 2.0, outlines the emerging Web3 technology stack, discusses current challenges and applications, and provides guidance for developers who want to start building decentralized applications.
This article provides a comprehensive overview of Web3.0, tracing its evolution from Web1.0 and Web2.0, explaining blockchain fundamentals, protocol layers, NFT use cases, global and domestic developments, and the opportunities and challenges of the decentralized internet era.
The article explains how Ant Group leverages blockchain‑based distributed identity authentication, detailing its technical foundations, ecosystem participants, and the advantages of privacy‑preserving, cost‑effective, and interoperable digital identity solutions for the emerging digital economy.
This article outlines the critical business areas, core performance metrics, testing approaches, templates, and tools—including Hyperledger Caliper—required to effectively implement and evaluate blockchain reconciliation systems for secure, accurate, and scalable financial operations.
This article examines how a blockchain‑based platform built by ICBC and the Huangshan Rural Property Rights Trading Center modernizes rural land and asset transactions in China, addressing information asymmetry, fund supervision, and digitization challenges while delivering win‑win benefits for farmers, governments, and banks.
This article explains the main characteristics of Web 3.0, including its decentralized architecture, blockchain foundations, semantic web, AI integration, DeFi, ubiquitous access, and 3‑D graphics, highlighting how these innovations differentiate it from earlier web generations and improve user privacy and experience.
This article provides a comprehensive overview of the digital economy, examines current digital technology trends such as AI, XR, quantum computing, and privacy computing, and explores how blockchain integrates with privacy computing to enable secure, decentralized data collaboration and drive the next phase of digital transformation.
Ant Group and Renmin University successfully completed their collaborative "Blockchain Legal Teaching and Curriculum System Reform" project, which earned the 2022 Beijing Higher Education Teaching Achievement Award first prize and is being submitted for a national teaching award, highlighting a multidisciplinary talent‑cultivation model for blockchain and the digital economy.
The article explains how emerging collaboration models, privacy‑computing and blockchain technologies, together with evolving regulations and industry standards, enable secure and compliant financial data sharing, describing the technical foundations, evaluation criteria, and practical testing practices that support trustworthy FinTech products.
This article traces the history of the web from its early portal‑centric days through Web 2.0’s social and video innovations, highlights the shortcomings of centralized platforms, and explains how blockchain, decentralized autonomous organizations, NFTs and the metaverse shape the emerging Web 3.0 era.
Radia Perlman, the inventor of the Spanning Tree Protocol and dubbed the ‘mother of the Internet,’ argues that while decentralized blockchain promises freedom, its infrastructure remains unstable, and centralized systems still offer reliability, accountability, and practical benefits, making blockchain more hype than a core technology.
The Magician-Web3 toolkit now supports load‑balanced RPC endpoints, a configurable retry strategy for skipped blocks, and several fine‑tuned adjustments such as a reduced minimum scan period and simplified chain detection, with code examples illustrating the new features.
China’s blockchain market is maturing as digital‑government initiatives shift from rapid expansion to deep, collaborative innovation, with over 50 industrial parks, multi‑hundred‑million‑yuan projects, and Tencent Cloud’s leading solutions driving new applications, institutional cooperation, and a more favorable business environment.
Ant Group and China University of Mining and Technology jointly organized a blockchain security teacher training program, bringing together over 20 faculty members and 30 graduate students to discuss blockchain security talent cultivation, curriculum development, and industry‑academia collaboration amid a growing demand for security professionals.
