How Rollups Work at the Code Level — Optimism is an optimistic rollup built on top of Ethereum. What’s an optimistic rollup? And how does it work at the code level? This article will explain. We will also cover why rollups need inter-chain communication and how this communication is implemented. …

Start your Solana journey by comparing programming models of Ethereum vs Solana — If you’re familiar with Ethereum and Solidity, you might be meaning to dip your toes into the Solana ecosystem. Solana’s fast blockchain is promising and exciting. Plus you increase the surface area of your web3 knowledge. But if you’ve never seen a Solana program, its syntax is freaking scary and…

Art Blocks Smart Contract Breakdown — Art Blocks is a platform for creating on-chain generative NFTs. But do you know what’s actually kept on-chain vs off-chain? And why do they need JavaScript in their smart contract? We will find out by breaking down the smart contract of Art Blocks. We will also learn about how images…

How someone decided to put an entire chess game on-chain — Today, we’ll be reviewing the smart contract behind the first-ever on-chain chess engine. It’s called 5/9 (fiveoutofnine). The creator just decided: screw it, I’m gonna put an entire chess game on-chain. And it’s not just the AI for playing the game, he also put the art (NFTs) totally on-chain. There…

Explaining its functionality by grouping lines of code — The CryptoKitties project has always been interesting to me. It was the first popular NFT game ever. But I didn’t understand its appeal, why it blew up. I also never quite understood the game dynamics. …

Explaining its functionality by grouping lines of code — Bored Apes need no introduction. When I decided to do a breakdown of BAYC, I decided to answer my long-standing questions: What’s the utility of an Ape? What do you really get if you buy one? How do they actually implement their promise land of merch, exclusive access, etc? How…

The smart contracts behind the exchange pools What is a pool? Uniswap has an exchange pool for each token pair (like UNI ↔ ETH above). Think of a pool as a bag filled with 2 types of tokens. Liquidity providers(LPs) can deposit/withdraw funds from this bag. Traders can submit one token and get another…

Uniswap has 3 versions:

Explaining its functionality by grouping lines of code — This is Part 2 of the Uniswap Smart Contract Breakdown. In Part 1, we covered: How Uniswap works at a high level How Uniswap code is organized Uniswap functionalities Core contracts: Pair (hard): managing the funds, minting, and burning In this article, we will cover the rest: Core contracts: Pair…