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DMDishita Malvaniadishitamalvania.hashnode.devMay 21 · 10 min read

From "Code Is Law" to "Spec Is Law": The Security Shift That Could Save DeFi From Itself

The $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

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BKBill Kunyihabuildwithrust.comMay 1 · 25 min read

Rust Crypto: SHA-256, ECDSA, Keys

When building the cryptography layer for a Bitcoin-style blockchain in Rust, the goal should be a small surface area. Every consensus-critical operation passes through it: transaction IDs, block hashe

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MHMusab Habeebmusab19.hashnode.devApr 16 · 7 min read

A Deep Dive Into the Curve LP Oracle Smart Contract

HeIf you are exploring the world of decentralized finance (DeFi), you have probably realized that accurately pricing assets is one of the hardest challenges developers face. Pricing a standard token i

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FAFavour Ajayefavourajaye.hashnode.devApr 14 · 14 min read

Smart Contract Security Checklist 3️⃣ — (Attacker’s Mindset)

That question is straight from the Solodit Smart Contract Security Checklist. And like most questions on that checklist, it sounds simple enough until you start pulling at the thread. Hello again. Wel

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LLIANPRlianpr.hashnode.devApr 9 · 1 min read

What Is Blockchain? A Comprehensive Guide for Beginners (2026 Edition)

Blockchain is the technological breakthrough powering the future of the decentralized web (Web3). While often associated with Bitcoin, its implications are far more profound. At its core, a blockchain

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RRaghuvanshraghuvansh.hashnode.devApr 6 · 16 min read

I Audited My Own DeFi Protocol —Here's Every Bug I Found (And How I Fixed Them)

"The scariest thing about writing smart contracts isn't that the code is complex. It's that the code looks fine — right until the moment it isn't." Let me set the scene. It's late. You've been writi

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FAFavour Ajayefavourajaye.hashnode.devFeb 22 · 11 min read

Smart Contract Security Checklist 2️⃣(Attacker's Mindset)

What if the person you owe money to can no longer legally receive it, and that one fact breaks your entire protocol? That’s not a hypothetical. It’s a live vulnerability class that has been found in r

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DSDunitech Soft Solutionsdunitech-soft-solutions.hashnode.devFeb 16 · 3 min read

Smart Contract Security: Best Practices Every Founder Should Know

Smart contracts power most Web3 applications, from DeFi platforms to NFT marketplaces. However, a single vulnerability in a smart contract can lead to millions in losses. For founders and businesses entering the blockchain space, security must be a t...

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WTWilliam Taylorcrypto0wallet.hashnode.devFeb 9 · 4 min read

Top Benefits of Using a Centralized Crypto Wallet for High-Volume Trading

As digital asset markets mature, trading volumes are increasing across exchanges, OTC desks, and enterprise platforms. While decentralized tools continue to evolve, many high-volume traders still rely on centralized systems to manage funds efficientl...

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Oohmygoddreamworksecurity.hashnode.devFeb 3 · 8 min read

How AI Agents Can Audit Smart Contracts in 2026: A Technical Deep-Dive

How AI Agents Can Audit Smart Contracts in 2026: A Technical Deep-Dive The $3.8 billion lost to smart contract exploits in 2024-2025 could have been prevented. Here's how AI agents are changing the game. The Problem Nobody Solved In March 2025, a re...

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Explore Hashnode

Trending tags this week

From "Code Is Law" to "Spec Is Law": The Security Shift That Could Save DeFi From Itself

Rust Crypto: SHA-256, ECDSA, Keys

A Deep Dive Into the Curve LP Oracle Smart Contract

Smart Contract Security Checklist 3️⃣ — (Attacker’s Mindset)

What Is Blockchain? A Comprehensive Guide for Beginners (2026 Edition)

I Audited My Own DeFi Protocol —Here's Every Bug I Found (And How I Fixed Them)

Smart Contract Security Checklist 2️⃣(Attacker's Mindset)

Smart Contract Security: Best Practices Every Founder Should Know

Top Benefits of Using a Centralized Crypto Wallet for High-Volume Trading

How AI Agents Can Audit Smart Contracts in 2026: A Technical Deep-Dive