Klaytn Klaytn Smart Contract and Decentralized Apps

Learn about blockchain by developing Ethereum-based DAPPs. You can also learn about practical development through the implementation of Smart Contracts.

Through this lecture, you will learn about the structure of the blockchain platform Klaytn and create a blockchain application (BApp) using the tool.

This is a must-see lecture for blockchain planners, developers, and company representatives. If you didn't have time to study separately, you can understand the core of the Bitcoin and Ethereum white papers through this summary lecture.

How to view safe indicators and objective data that should not be missed when investing in Bitcoin and altcoins, and share real airdrop know-how and practical methods that made it from 0 won to 100 million won

This lecture covers the basics of crypto investment, including the value and risks of Bitcoin, Ethereum, and other Layer 1s (Cosmos).

"I have the data, but I don't know how to interpret it." This is the most common concern among those just starting with on-chain analysis. In this course, a 10-year data analyst and on-chain researcher fully reveals all the tools and interpretation techniques used in actual market analysis. ㆍWhich indicators react first before coin prices move ㆍWhether whales are accumulating or dumping ㆍHow to read market sentiment through bridge and stablecoin flows ㆍHow to extract data through Etherscan and Dune without programming ㆍAnd the interpretation patterns and strategies used by professional analysts This course is designed to help you move beyond "just looking" at on-chain data and develop an analytical framework that leads to investment decisions.

Virtual assets and cryptocurrencies have driven financial innovation, but they are also being used as tools for crime, money laundering, and data breaches. This course starts with the basic concepts of virtual assets and blockchain, tracks actual cryptocurrency transaction flows, and analyzes suspicious fund movement structures.

You can understand metaverse technology in a short period of time, and we will teach you practical skills for creating metaverse worlds and issuing and selling NFTs without coding.

This course is a hands-on process where you'll build an NFT marketplace from scratch using frontend technologies and web3.js to leverage Solidity smart contracts. Students will implement all marketplace functions from NFT minting to selling, buying, and deleting, and deploy directly to the latest testnets including Ethereum Sepolia, Polygon Amoy, and Kaia Kairos networks. You'll also learn how to use IPFS for distributed storage of NFT images and metadata, experiencing a real service-ready DApp architecture that goes beyond simple demo-level implementations. ✨ Course Features Full-stack learning: React UI, smart contract development, and multi-chain deployment all in one Latest environment support: Sepolia·Amoy·Kairos testnet support, MetaMask integration Master core NFT processes: Image upload (IPFS) → Metadata generation → Minting → Marketplace transactions Practice-focused: Real service development experience including transaction handling, UX design, and multi-chain support