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The Ethereum Virtual Machine (EVM) is a critical component of the Ethereum blockchain, powering smart contracts and decentralized applications (dApps). Understanding how to interact with
Web3 is not simply another version of the web, it’s the next phase of the internet, that transforms how we interact with data, digital assets,
Avalanches are innovative, multi-layer blockchain platforms that have gained significant popularity in the cryptocurrency and decentralized application world. It is designed to be highly scalable,
Blockchain technology has gained immense popularity since the launch of Bitcoin in 2009, and it has revolutionized many industries such as finance, healthcare, and logistics.
The Evolution of the Internet: Enter Web3 The internet has evolved dramatically over time. Web1 was the early, static “read-only” internet, where users could only
Blockchain technology has evolved rapidly, introducing new platforms and features aimed at expanding decentralization and enhancing scalability, security, and performance. The Ethereum Virtual Machine (EVM)
ETHDenver is an important Ethereum and blockchain community event that takes place every year in Denver, Colorado. This is known as the world’s largest and
Smart contracts have become one of the most revolutionary aspects of blockchain technology, especially in decentralized finance (DeFi), digital assets, and automation. These self-executing contracts
In recent years, Non-Fungible Tokens (NFTs) have captured widespread attention across multiple industries, from art and entertainment to real estate and gaming. These unique digital
JavaScript and Solidity are both high-level programming languages widely used in their respective domains. While JavaScript dominates the web development world, Solidity is the most
Blockchain technology is continuously growing to become one of the most transformative forces in the digital world. In the Ethereum blockchain, transactions and computations involve
The Solidity compiler is the essential tool that converts high-level Solidity code into a format that the Ethereum Virtual Machine (EVM) can understand. Whether you’re
As blockchain technology continues to advance, Solidity has become the backbone of smart contract development on the Ethereum network. It has gained popularity as a
Solidity is a high-level, object-oriented programming language designed for implementing smart contracts, which have become one of the most transformative innovations of our time. These
In the world of blockchain and cryptocurrency, the term Wei holds a significant importance, particularly within the Ethereum ecosystem. While many are familiar with Ether
Ethereum, one of the most popular blockchain platforms, has faced a significant scalability challenge. The network’s current throughput is limited to 15 transactions per second
So, you wanna be a Web3 engineer, huh? That’s a bold move, kiddo. You’re basically signing up to be a digital alchemist, crafting the foundation
Ethernaut Level 20: Denial focuses on a vulnerability related to denial-of-service (DoS) attacks. In this article, we’ll break down the Denial contract, identify its vulnerabilities,
Web3 thrives on innovation, but unlike traditional software, upgrades to deployed smart contracts can be a tricky affair. The very nature of blockchain immutability presents
Web3 thrives on the power of smart contracts – self-executing programs that automate tasks on the blockchain. However, a seemingly minor oversight – unchecked return
This article will break down the Ethernaut Level 16: Preservation contract, point out its flaws, and show how the Hack contract takes advantage of these
The lifeblood of Web3 applications often lies in tokens, and ERC token standards provide a common language for creating and interacting with these digital assets
Web3 thrives on the immutability of the blockchain – a guarantee that once data is written, it cannot be altered or erased. This permanence is
Web3 is ushering in a new era of financial applications, blending traditional finance (TradFi) with decentralized finance (DeFi). Many projects straddle this line, requiring a
Web3 applications represent the cutting edge of decentralization, but they do not operate in isolation. These applications require real-world data to function effectively, and this
In the world of blockchain and smart contracts, security is paramount. However, there’s a fine line between ensuring security and creating rigid, inflexible systems. One
In a traditional transaction, one party sends funds to another in exchange for goods or services. This exchange typically follows a well-defined sequence of steps.
Challenge 13: Gatekeeper One, also known as Ethernaut Level 13, stands out because it necessitates a thorough understanding of Ethereum transactions and gas mechanics. This
Have you ever sent a cryptocurrency payment and felt like it’s taking forever to confirm? You’re not alone. Unlike swiping your debit card, crypto transactions
Imagine a world where anything digital can be securely owned and traded. Artwork, in-game items, concert tickets, even your loyalty points – all represented by
Welcome to the fascinating world of smart contracts, where lines of code dictate financial agreements and automate complex processes. But what about time? How do
Decentralized Applications, commonly known as dApps, have revolutionized the way we interact with digital services, providing enhanced security, transparency, and user control. As the backbone
Imagine a program that relies on stock prices to make investment decisions. It checks its internal database, but the information is outdated. The program is
We all rely on apps in our daily lives – for social media, shopping, banking, and more. But have you ever considered who controls these
Web3 is an exciting and closely-knit space filled with prospects, where users gain ownership and change ways of interacting online. If you have an outstanding
Delegatecall is a powerful but intricate feature in Solidity that allows contracts to delegate execution to other contracts. Understanding delegatecalls is crucial for building advanced
In this challenge, we’ll dive into smart contracts’ payment vulnerability and essential security practices to prevent such issues. By the end of ethernaut level 9,
Ethernaut challenges, akin to a hacking Capture The Flag (CTF) for Web3 enthusiasts, provide an immersive platform to explore Ethereum and Solidity programming. Each challenge
In Solidity, contracts can interact with other contracts in two main ways: through high level calls using the contract’s interface or low level calls using
Imagine you walk into a fancy restaurant, eager to try their new menu. But before you can even glance at the dishes, the waiter informs
Imagine a super secure way to store information and run programs on the internet, like a giant digital record keeper everyone can trust. That’s what
This Web3/Solidity-based wargame is akin to a hacking Capture The Flag (CTF) challenge, where each level presents a smart contract puzzle waiting to be ‘hacked’.
Blockchain, the underpinning system for recording information, has become more than just the basis for cryptocurrency. Blockchain is a system of recording information in such
Decentralized finance (DeFi) is transforming the financial world, offering alternatives to traditional systems that are more transparent and don’t rely on middlemen. Central to DeFi
Smart contracts, the self-executing code on blockchains, have revolutionized various industries. From decentralized finance (DeFi) to supply chain management, their potential is undeniable. However, with
The world of blockchain technology is full of new and exciting ideas. Blockchains are great because they are very secure and can’t be easily changed,
Solidity, the programming language for Ethereum smart contracts, excels at automating tasks and enforcing complex logic within the secure confines of the blockchain. However, smart
Solidity, the programming language specifically designed for Ethereum Virtual Machine (EVM), plays a pivotal role in building robust NFT marketplaces. This article explains, NFT marketplace
The Ethernaut Level 3, called “Coin Flip,” is a lesson on the weak spots in how smart contracts handle chance and prediction. This article walks
The world of blockchain technology develops on real-time communication and transparency. Smart contracts, the self-executing programs on blockchains, play a significant role in this dynamic
Web3.js is a powerful library that unlocks the potential of interacting with the Ethereum blockchain and other Web3-compliant platforms. One of its core functionalities is
Web3.js, a popular JavaScript library, empowers developers to build decentralized applications (dApps) that interact with blockchains. But how do these dApps actually connect to the
Web3.js open up the huge power of Ethereum blockchain for developers. This JavaScript library let’s you talk with Ethereum, allowing you to interact with Ethereum’s
Solidity, the programming language powering Ethereum smart contracts, offers robust tools for code reusability. Two key approaches dominate this landscape: inheritance and libraries. While both
Smart contracts, the self-executing code on blockchains, have revolutionized various industries. They offer trust, transparency, and automation in transactions, forming the backbone of Decentralized Applications
Smart contracts, the self-executing code on blockchains, have revolutionized various industries. From decentralized finance (DeFi) to supply chain management, their potential is undeniable. However, with
Remember that strange feeling when an ad pops up for that exact pair of shoes you just peeked at online? Web2, the internet we know
Etherscan has long served as the dominant block explorer for the Ethereum network. Its user-friendly interface and comprehensive data set have made it a valuable
Imagine the early days of the Wild West. Untamed potential, a rush of opportunity, but also the risk of chaos without the proper tools. Smart
Have you stumbled upon the acronym DAO and scratched your head in confusion? You’re not alone. Decentralized Autonomous Organizations are the new hot topic in
Imagine a world full of bugs and weird happenings, but we’re not talking about bugs you find under a rock—we’re diving into the cool world
Forget the tired old resume and cover letter combo. You’re ready to ditch the corporate suits and dive headfirst into the electrifying world of Web3.
Ah, the world of Web3! It’s vast, it’s exciting, and it’s… slightly overwhelming, isn’t it? If you’re feeling lost in the sea of Web3 bootcamps,
Did you know 80% of internet users are concerned about their online privacy? Web3 offers a solution, built on a foundation of powerful protocols. It’s
Imagine a world where you have complete control over your finances, without relying on traditional banks or middlemen. This is the promise of Decentralized Finance
Struggling to grasp why your Ethereum transactions sometimes cost more than the transaction itself? You’re not alone in this crypto puzzle. Let’s simplify it. Ethereum
Solidity is a popular programming language for writing smart contracts on the Ethereum blockchain. In Solidity, global variables play a crucial role in the functioning
Solidity is a high-level programming language specifically designed for developing smart contracts on the Ethereum blockchain. In Solidity, functions are a fundamental building block, allowing
Web3 is a cool new thing that changes the internet to be fair for everyone, like magic! It lets you control your own data. Because
Blockchain development is the process of creating and maintaining blockchain-based applications and systems. Blockchain is a distributed ledger technology (DLT) that allows for secure, transparent,
Solidity is the most popular programming language for developing smart contracts on Ethereum. And just like in any programming language, Solidity variables play a crucial
Smart contracts are like digital wizards—self-executing agreements with predefined rules, all meticulously encoded. They’re the enchanting core of blockchain technology, promising a world of transparency
Flash loans are a super cool new idea in the world of decentralized finance (DeFi). They let users borrow as much money as they want
Imagine a world where you can prove the truth of a statement without revealing any details about the statement itself. It sounds paradoxical, doesn’t it?
An oracle in blockchain is like a helper that lets a blockchain network connect with other data sources or systems. It’s like a bridge between
In the fast-paced world of digital tech, Decentralized Autonomous Organizations (DAOs) are changing how we think about organizations. A DAO is a group that runs
Do you want to learn about blockchain development? Then Solidity is a great place to start! It’s the main language we use to create smart
Blockchain technology is revolutionizing the way we think about data and trust. But what exactly is Layer 1 in blockchain, and why is it so
What is a Virtual Machine (VM)? A virtual machine (VM) is a software program that creates a virtual computer within your physical computer. This virtual
The world of smart contracts keeps changing, with new languages coming out all the time. Vyper is one of these new languages. It’s a lot
What are Solidity Events? Solidity events are a way for smart contracts to communicate with each other and with external applications. They allow developers to
What is Smart Contract ABI? A smart contract ABI, or Application Binary Interface, is a standard way to interact with smart contracts in the Ethereum
Solidity is a high-level programming language that is primarily used to develop smart contracts on the Ethereum blockchain. It is a powerful tool for creating
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