Smart Contract Proxy Storage Collision Explained
Proxy patterns enable smart contract upgrades, but storage slot collisions can silently corrupt funds, the mechanism, the tradeoffs, and what auditors check.
№ 002SecurityVerifiable Delay Functions and Randomness Beacon Security
VDFs make on-chain randomness manipulation structurally expensive via a sequential delay no adversary can compress. The mechanics, caveats, tradeoffs.
№ 003SecurityFormal Verification vs Smart Contract Security Audit
A security audit finds likely bugs. Formal verification proves their absence mathematically. The difference in cost, time, and guarantees, laid out plainly.
№ 004SecurityKeccak-256 Preimage Resistance and Ethereum's State Trie
How Ethereum's Keccak-256 hash function blocks preimage attacks on the state trie, explained with concrete mechanics and a worked example.
№ 005SecurityReplay Attacks vs Double-Spends on Forked Chains
Replay attacks and double-spends differ mechanically, defensively, and in attacker effort. The distinction shapes real security decisions on forked chains.
№ 006SecurityHow Smart Contract Bytecode Hides Malicious Logic
Standard audit tools miss tricks buried in EVM bytecode. Here's the concrete mechanism, with real techniques and what auditors actually check.
№ 007SecurityZero-Knowledge Proofs: Proving Compliance, Not Data
Zero-knowledge proofs let crypto firms prove regulatory compliance to auditors without revealing any underlying user data. Here's the exact mechanism.
№ 008SecurityWhy Smart Contract Audits Miss Reentrancy Bugs
Single-function reentrancy is well-understood. Cross-function and cross-contract variants still slip through audits. Here's exactly why, and how.
№ 009SecurityHow zk-SNARKs Stay Small Without Breaking Soundness
zk-SNARKs produce tiny proofs that verify in milliseconds. Here's the exact mechanism that makes them compact without letting cheaters through.