Skip links

Bootcamps

Resources

Facebook Twitter Linkedin

Ghost That Job You Hate!
Start Fresh with 20% Off

Days
Hours
Minutes
Seconds
Claim Offer

Tag: blockchain

Layer 3 blockchain
Blockchain

Layer 3 Blockchain: What is it and how does it work

Layer 3 blockchain is the application layer built atop Layer 1 and Layer 2, providing specialized features for distinct use cases. Layer 1 blockchains like Ethereum and Bitcoin offer foundational security and consensus, while Layer 2 solutions improve scalability and reduce transaction costs. Layer 3 advances this by enabling dedicated networks tailored to particular industries or applications.

Read More »
Metana Editorial October 14, 2025
Can You Send USDT to Ethereum Address
Crypto Faucets

Can You Send USDT to Ethereum Address? Complete Guide for Safe Transfers

Network compatibility is vital when sending USDT to an Ethereum address. While possible, both the sender’s and recipient’s wallets must operate on the same blockchain to avoid losing funds. This guide covers how to safely transfer USDT to Ethereum, including network requirements and essential precautions to prevent costly mistakes and permanent loss.

Read More »
Metana Editorial October 14, 2025
Web3 vs blockchain
Blockchain

What Is The Difference Between Web3 and Blockchain?

Blockchain and Web3 are related but not the same. Blockchain is a decentralized ledger that records and secures data, while Web3 is a user-owned internet combining blockchains, smart contracts, decentralized storage, and digital economies. This guide explains 13 key differences, including scope, architecture, governance, and future potential, helping developers, investors, and enthusiasts understand their connection.

Read More »
Metana Editorial September 23, 2025
Blockchain and AI 2025
AI & Machine Learning

Blockchain and AI: Beginner Guide 2025

TL;DR
Blockchain is a decentralized, secure digital ledger used in crypto, DeFi, NFTs, and more. It’s driving high-growth tech careers in 2025, including developers, analysts, and architects. AI and blockchain are merging, enabling smarter contracts, secure data, and transparent automation.
New hybrid roles like AI Blockchain Engineer and Smart Contract Auditor with AI are emerging.

Read More »
Metana Editorial July 1, 2025
Blockchain

JavaScript Hoisting [Explained]

TL;DR JavaScript hoisting is one of those concepts that confuses developers—especially beginners. Many assume that JavaScript moves declarations to the top, but the reality is

Read More »
Metana Editorial March 10, 2025
Blockchain

Best Cryptocurrencies to Invest

Cryptocurrencies are digital currencies secured by cryptography and exchanged on decentralized networks without the need for banks or central authorities. Transactions occur between digital wallets

Read More »
Metana Editorial January 27, 2025
Smart Contracts

Interoperability in Smart Contracts

Smart contracts have transformed the execution of digital transactions and agreements by offering a secure, automated, and tamper-proof solution for managing complex workflows. However, their

Read More »
Metana Editorial January 24, 2025
Blockchain

How to Conduct A Research on Blockchain

Blockchain has changed many industries with decentralized, transparent and secure data storage and transaction systems. It’s spread from finance and supply chains to healthcare and

Read More »
Metana Editorial December 19, 2024
Web3.0

What is Solscan and How to Use It

TL;DR The Solana blockchain is one of the most dynamic and innovative ecosystems in the cryptocurrency world, offering unparalleled speed and scalability. However, navigating this

Read More »
Metana Editorial December 14, 2024
Blockchain

What are Real World Assets (RWAs)

The concept of Real World Assets (RWAs) has gained significant attention as blockchain technology and decentralized finance continue to grow. Real World Assets serve as

Read More »
Metana Editorial November 13, 2024
Web3.0

What are EVM Compatible Blockchains?

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)

Read More »
Metana Editorial October 4, 2024
Web3.0

What is ETHDenver?

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

Read More »
Metana Editorial October 1, 2024
Full-Stack

How Similar Are JavaScript and Solidity?

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

Read More »
Metana Editorial September 21, 2024
Smart Contracts

Easy Guide to Converting Wei to Gwei

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

Read More »
Metana Editorial September 19, 2024
Solidity

What is the Solidity Compiler?

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

Read More »
Marko Jauregui September 17, 2024
Solidity

What is Solidity: A Simplified Guide

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

Read More »
Metana Editorial September 5, 2024
Ethernaut Walkthrough

Ethernaut Level 20 Walkthrough: Denial

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,

Read More »
Georgi Plamenov July 31, 2024
Smart Contracts

Mixed Accounting in Smart Contracts

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

Read More »
Metana Editorial June 29, 2024
Smart Contracts

Oracle Dependence in Smart Contracts

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

Read More »
Metana Editorial June 28, 2024
Smart Contracts

Reentrancy Attack in Smart Contracts

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.

Read More »
Metana Editorial June 21, 2024
Blockchain

Exploring the Mempool: A Deep Dive

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

Read More »
Metana Editorial June 18, 2024
Ethernaut Walkthrough

Ethernaut Level 9 Walkthrough: King

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,

Read More »
Vinh Tran May 20, 2024
Ethernaut-Level-8-Walkthrough-Vault
Ethernaut Walkthrough

Ethernaut Level 8 Walkthrough: Vault

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

Read More »
Rupam Roychoudhury May 19, 2024
Blockchain

What are Web3.js Providers [Explained]

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

Read More »
Metana Editorial March 28, 2024
Web3.0

Top 10 Etherscan Alternatives in 2025

TL;DR Etherscan is the leading Ethereum block explorer, but alternatives offer unique features and specialized functionalities. Top options include BscScan (for Binance Smart Chain), Polygonscan

Read More »
Metana Editorial March 19, 2024
Web3.0

How Does a DAO Work?

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

Read More »
Metana Editorial March 12, 2024
Web3.0

5 Best Web3 Development Bootcamps

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,

Read More »
Metana Editorial February 12, 2024
How-to-Write-Solidity-Smart-Contracts
Blockchain

How to Write Solidity Smart Contracts

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

Read More »
Ali Kanso October 19, 2023
Blockchain

What are Events in Solidity?

TL;DR: What are Solidity Events? Solidity events are a way for smart contracts to communicate with each other and with external applications. They allow developers

Read More »
Metana Editorial July 12, 2023
Blockchain

Smart Contract ABI: What is it?

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

Read More »
Metana Editorial May 16, 2023
Smart Contracts

Can I learn Solidity for free?

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

Read More »
Metana Editorial March 17, 2023

Get a detailed look at our Cyber Security Bootcamp

Understand the goal of the bootcamp

Find out more about the course

Explore our methodology & what technologies we teach

You are downloading 2025 updated Cyber Security Bootcamp syllabus!

Download the syllabus to discover our Cyber Security Bootcamp curriculum, including key modules, project-based learning details, skill outcomes, and career support. Get a clear path to becoming a top developer.

Cyber Security Bootcamp Syllabus Download

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Get a detailed look at our AI Automations Bootcamp

Understand the goal of the bootcamp

Find out more about the course

Explore our methodology & what technologies we teach

You are downloading 2025 updated AI Automations Bootcamp syllabus!

Download the syllabus to discover our AI Automations Bootcamp curriculum, including key modules, project-based learning details, skill outcomes, and career support. Get a clear path to becoming a top developer.

AI Automations Bootcamp Syllabus Download

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Get a detailed look at our Software Engineering Bootcamp

Understand the goal of the bootcamp

Find out more about the course

Explore our methodology & what technologies we teach

You are downloading 2025 updated Software Engineering Bootcamp syllabus!

Download the syllabus to discover our Software Engineering Bootcamp curriculum, including key modules, project-based learning details, skill outcomes, and career support. Get a clear path to becoming a top developer.

Software Engineering Bootcamp Syllabus Download

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Ghost That Job You Hate!
Start Fresh with 20% Off

Days
Hours
Minutes
Seconds
Claim Offer

New Application Alert!

A user just applied for Metana Web3 Solidity Bootcamp. Start your application here : metana.io/apply

Get a detailed look at our Full Stack Bootcamp

Understand the goal of the bootcamp

Find out more about the course

Explore our methodology & what technologies we teach

You are downloading 2025 updated Full stack Bootcamp syllabus!

Download the syllabus to discover our Full-Stack Software Engineering Bootcamp curriculum, including key modules, project-based learning details, skill outcomes, and career support. Get a clear path to becoming a top developer.

Software Engineering Syllabus Download

"*" indicates required fields

This field is for validation purposes and should be left unchanged.