How to Build Compound V2 From Scratch (18 Sections, Line by Line)
Rebuild Compound V2 from scratch — cTokens, Comptroller, InterestRateModel, and liquidation logic. The second-most-forked DeFi protocol, understood end to end.
ReadDeFi Protocol Analysis.
Line-by-line walkthroughs of Uniswap, Aave, Yearn, Liquity, and other protocols, written for engineers reading the source.
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Uniswap v4 hook attacks: 4 exploit patterns with PoCs
The four Uniswap v4 hook attack patterns that cover every public exploit: reentrancy, flag bypass, donation griefing, accounting drift — with minimal PoCs.
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Yearn vault security: V2 vs V3 architecture, exploits, and defense patterns
Yearn V2 and V3 vault architecture, exploit case studies (yDAI, yUSDT, Cream), and defense patterns every DeFi auditor and integrator must know.
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ERC-3643 vs ERC-1400 for RWA Compliance
Compare ERC-3643 and ERC-1400 for RWA compliance. See identity checks, partition tradeoffs, ACT risk, forced transfers, and when each token standard fits.
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How to Start Your First Uniswap V4 Hook: Essentials, Libraries, and Risks
Step-by-step guide to building your first Uniswap V4 hook. Learn the essential libraries, contract structure, hook permissions, and critical security considerations for DeFi developers.
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Uniswap V2 Code Deep Dive: Router, Factory, Pair & Security Risks
Uniswap V2 code walkthrough: Router, Factory, and Pair contracts dissected. Understand the price oracle, flash swaps, and the reentrancy risks auditors flag — Zealynx.
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Tokenizing Intellectual Property on EVM: Solidity Patterns for Programmable IP Rights
ERC-721 and ERC-2981 fail for real-world IP. Learn Solidity patterns for programmable royalty splits, copyright decay, and Ricardian contracts — via Zealynx.
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Moving Averages in DeFi: Security Vulnerabilities and Attack Prevention
Moving averages power critical DeFi infrastructure from price oracles to AMMs, but create attack vectors for flash loan manipulation and precision exploits. Learn how to identify vulnerabilities in TWAP, SMA, and EMA implementations, plus proven mitigation strategies.
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Implement Uniswap v4 swaps & avoid critical mistakes
Master Uniswap v4's four swap types: zeroToOne, oneToZero, exactInputForOutput, and exactOutputForInput. Learn to implement SwapParams correctly and interpret BalanceDelta results securely.
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Uniswap’s Q64.96 Explained: Essential Security Tips for Hook Developers
Q64.96 fixed-point math powers Uniswap V3/V4 pricing. Learn how sqrtPriceX96 overflows happen and how Zealynx auditors catch them before they cost you.
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Hyperliquid Architecture Explained: HyperBFT, HyperCore, and HyperEVM
Hyperliquid architecture explained for builders comparing HyperBFT, HyperCore, and HyperEVM before they integrate, launch, or scope a Hyperliquid audit.
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Uniswap V4 Hooks — Introduction to Hooks — Find the answer to your questions
A comprehensive Q&A on Uniswap v4 Hooks, covering technical implementation, security considerations, and architecture from the Uniswap Hook Incubator Cohort 2.
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