AZAnatolii Zhadaninanatoliizhadan.hashnode.dev·5d ago · 34 min readHow to Deploy a Self-Hosted 2-of-3 MPC Signing Cluster (Without Losing Everyone's Keys)Three independent MPC nodes, each holding one key share. The backend never holds a key. It sends a 32-byte digest and gets a signature back. A restored MPC cluster can boot up, report [READY] on all t00
SSedhuinsedhu.hashnode.dev·Jul 9 · 15 min readDebugging EVM Signature Verification Issues A field guide to diagnosing EVM cross-environment signature failures — told through one real case, written for engineers at any level. The junior reader gets a method to copy. The senior reader gets t00
AGAvanish Garginavanish-garg.hashnode.dev·Jun 30 · 5 min read0xFlex: Engineering Your Brand on the Blockchain with Vanity AddressesWELCOME TO THE CURIOSITY CRUNCH — EPISODE 03A series where we take the technical phenomena we blindly trust every day, stop ignoring them, and ruthlessly deconstruct the math, engineering, and archite00
GPGlory Praise Emmanuelinglorypraise.hashnode.dev·Jun 29 · 9 min readOn-Chain vs Off-Chain: How to Decide What Data Lives Where in Web3One of the most consequential decisions in any Web3 system is also one of the least discussed honestly: what data lives on-chain, what lives off-chain, and how to build a system that uses both correct00
CCryptomusincryptomus-articles.hashnode.dev·Jun 25 · 6 min readCommon Security Pitfalls in Smart Contracts for DeFi DevelopersSecurity is still one of the biggest concerns in decentralized finance. While smart contracts enable financial systems to run without middlemen, they also create new attack surfaces. A single bug can 10
SShriyaingenesisjournal.hashnode.dev·Jun 23 · 8 min readThe First Step Into Solana Smart Contracts: My Brutal "Hello World" Journey on WSLI remember the excitement vividly. I had just set up my WSL (Windows Subsystem for Linux) environment, painstakingly followed the Anchor installation guide, and finally typed anchor init hello_world. 00
AOAdekola Olawaleinadekolaolawale.hashnode.dev·Jun 22 · 5 min readHow to Build Your First DApp: A Solidity Beginner’s GuideIntroduction Decentralized applications, or DApps, are reshaping the digital landscape. Unlike traditional applications, DApps run on blockchains, meaning there’s no central authority controlling your00
MZMerlyn Zawadiinzawadi.hashnode.dev·May 30 · 8 min readReliability at the Smart Contract Boundary During a live Formula 1 session, GridLoqer submits a new commitment to TelemetryRegistry.sol on the Polygon blockchain every three seconds. Each submission is a transaction. Each transaction goes thro00
DMDishita Malvaniaindishitamalvania.hashnode.dev·May 21 · 10 min readFrom "Code Is Law" to "Spec Is Law": The Security Shift That Could Save DeFi From ItselfThe $770 Million Wake-Up Call Something is fundamentally broken in how DeFi handles security. April 2026 was the worst month for crypto exploits on record. Two protocols alone — Kelp DAO (292 million 10
GCGina Caranoinkir-chain-labs.hashnode.dev·May 21 · 6 min readReal-World Asset Tokenization: How It Works and Why Developers Are Paying Attention in 2026Traditional finance has always had a liquidity problem. High-value assets like real estate, commodities, and private equity hold trillions in value, yet they remain difficult to access, slow to transf00
