This guide walks you through cloning the Uniswap V3 core repository, setting up the development environment, compiling Solidity contracts, and executing the comprehensive test suite to deeply understand the protocol's core mathematics and logic.
This study investigates the capability of ChatGPT, a large language model, to detect common smart‑contract vulnerabilities, evaluates its performance against traditional tools across multiple datasets, and discusses its strengths, limitations, and future potential in blockchain security auditing.
The article explains Web3’s trust‑less model and smart‑contract fundamentals—from Bitcoin’s simple script to Ethereum’s gas‑metered EVM—examines design trade‑offs such as on‑chain versus signature‑based whitelists, outlines engineering practices for immutable bytecode upgrades, and describes consensus evolution from PoW to a hybrid PoS/PoA PBFT “High‑Energy Chain.”
This article provides a thorough overview of Web3.0, covering its evolution from Web1.0 to Web3.0, core blockchain concepts, NFTs, DAOs, gas fees, and presents a practical, step‑by‑step tutorial for building, testing, and deploying a decentralized application (DApp) using Solidity, Truffle, Ganache, and MetaMask.
The guide walks readers through Web3’s evolution from Web1.0 to blockchain‑driven Web3.0, explains core concepts such as decentralized ledgers, smart contracts, gas fees and consensus, then details DApp architecture and provides a step‑by‑step tutorial building a pet‑adoption DApp with Solidity, Truffle, MetaMask and a Vue/React frontend.
This article introduces Web 3.0 concepts, explains blockchain architecture and Ethereum fundamentals, then walks through creating an ERC‑20 HPC token, setting up a Geth client, writing and deploying Solidity contracts, and building a MetaMask‑enabled front‑end deployed on IPFS.
A critical logic mistake and a refund‑queue vulnerability in the Akutar NFT project's AkuDreams Solidity contract caused 11,539 ETH (about $34 million) to become permanently locked, illustrating how subtle coding errors can freeze massive crypto assets.
This guide outlines a step‑by‑step Web3.0 learning path covering fundamental computer science, frontend and backend web skills, decentralized application (DApp) concepts, smart‑contract development, and essential tools, enabling newcomers to become competent blockchain developers.
This article explores blockchain programming fundamentals, compares public and permissioned chains, reviews major development platforms, and evaluates the top five languages—C++, JavaScript, Python, Go, and Solidity—highlighting their strengths, weaknesses, and real‑world blockchain applications.
This article introduces the rapid rise of blockchain technology beyond cryptocurrencies, explains smart contracts, and presents ten widely used tools—including Remix IDE, Solidity compiler, Solium, Parity, Geth, MetaMask, Truffle, and DAppBoard—plus additional resources, helping developers choose the right solutions for their projects.
This tutorial walks you through installing geth, synchronizing the Rinkeby testnet, creating accounts, writing and compiling Solidity contracts, deploying an ERC20 token, and performing common operations such as balance queries, transfers, approvals, and delegated transfers using the console and web3.js.
This article introduces blockchain as a secure data‑block structure and presents a concise overview of five popular programming languages—C++, Java, Python, Ruby, and Solidity—highlighting why each is suited for building blockchain applications.
This step‑by‑step guide walks developers through setting up a blockchain development environment, creating and deploying an ERC‑20 token contract with Truffle and OpenZeppelin, and integrating the contract into an Android app using Web3j to query balances and perform token transfers.
This tutorial walks you through the complete process of setting up a local Ethereum node, developing and deploying a Solidity token contract with Truffle, generating Java wrappers using Web3j, and integrating the contract into an Android app to perform transfers and balance queries.
This article compares Java and Solidity constructor concepts, shows how Solidity constructors were defined before and after version 0.4.22, demonstrates the required syntax changes with code examples, and explains the compilation warnings and errors that arise from version mismatches.
When compiling a Solidity contract in Remix, the “mock compiler: source not found” error occurs because the compiler version isn’t specified, and the guide shows how to set the correct version in Remix settings or directly via the URL, plus tips for spotting low‑level syntax mistakes.
This article explains the purpose of the constant keyword in Solidity, its equivalence to view, the deprecation timeline, and why developers should replace constant with view or pure to avoid state‑modifying functions and unnecessary gas costs.
This guide explains why Remix shows two typical Solidity compiler warnings—missing visibility and missing pure mutability—and demonstrates step‑by‑step code modifications that remove both warnings while clarifying function visibility and state‑mutability modifiers.
The article explains the soaring demand and high salaries for blockchain developers, outlines key technologies such as Solidity and Hyperledger, and reviews university courses, online bootcamps, and career‑transition advice for professionals seeking to enter the rapidly growing blockchain field.
The article highlights a massive shortage of blockchain engineers, revealing that each developer receives about 14 job offers, outlines the top in‑demand skills such as Hyperledger Fabric, Ripple, and Solidity, and suggests pathways like iOlite, MOOCs, and headhunting services to become a blockchain developer.
This article explains common Solidity vulnerabilities—including overflow, underflow, function visibility pitfalls, delegatecall misuse, and reentrancy attacks—illustrates each issue with concrete code examples, and shows how to mitigate them using SafeMath and proper contract design.
This article guides developers through extending a simple Ethereum voting DApp by introducing ERC20 token-based weighted voting, covering token concepts, Solidity contract design with structs and mappings, functions for buying tokens, voting, and fund transfer, as well as deployment, testing, and front‑end integration steps.
This comprehensive guide introduces Ethereum’s core concepts, from blockchain fundamentals and smart‑contract mechanics to DApp development, token standards, client tools, security best practices, and the surrounding ecosystem of projects and protocols.
This article describes a practical approach to making Ethereum smart contracts upgradeable by separating business logic and data into distinct contracts, leveraging Solidity libraries, the using keyword, and an entry contract to manage funds and facilitate seamless contract upgrades.
This guide explains how to write Ethereum smart contracts in Solidity, Serpent, or LLL, compile them to bytecode, generate Java wrappers with Web3j, manage transactions and events, use filters, and operate the Web3j command‑line tool for wallet and contract tasks.
This guide introduces the free, cross‑platform Atom editor, highlights its extensive language support and configurable UI, and provides step‑by‑step instructions for downloading Atom and installing the linter‑solidity plugin to enable Solidity syntax highlighting and linting.
This article introduces blockchain fundamentals, explains Bitcoin and its protocol, compares public, private and consortium chains, then dives into Ethereum 2.0 concepts, consensus mechanisms, and provides a step‑by‑step tutorial for building a local test network, compiling geth and solc, and deploying a simple Solidity contract.
