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VVaultionvaultion.hashnode.dev1d ago · 5 min read

Who gets to stall? Designing timeouts and dispute windows for a P2P escrow contract

Most escrow contract tutorials stop at three functions: deposit, release, refund. That version works perfectly as long as both people behave. The interesting design work is everything that happens whe

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MIMarshall Infotechsmarshallinfotechs.hashnode.devSep 28 · 4 min read

How to Test Liquidations Before Your Lending Protocol Hits Mainnet

Most lending-protocol code runs on a calm day: deposits, borrows, repayments. Liquidation code runs on the worst day. Prices are gapping, gas is spiking, oracles are lagging, and every bot in the mark

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DNDmytro Nasyrovpharos-production.hashnode.devSep 20 · 18 min read

Reconstruct a Smart Contract Deployment from On-Chain Evidence

A contract address is the start of a deployment investigation. To reconstruct what happened, connect that address to its creation transaction, the initialization code that executed, the runtime code i

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GYGulshan Yadavmrgulshanyadav.hashnode.devSep 10 · 13 min read

Writing Efficient Smart Contracts with Solidity — Practical Patterns

Storage, reentrancy, gas, and the structural decisions that separate contracts that survive from contracts that drain. I have written my share of Solidity. The contract that taught me the most was not

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KKKowshik K R Mkrionex.hashnode.devAug 31 · 3 min read

We Just Launched Krionex: A Non-Custodial Workspace for Deploying Smart Contracts Across 14 EVM Networks

Today, Krionex is live on Product Hunt — and this is the first time we're properly writing about what we've built and why. The problem we kept running into Launching a smart contract is never really o

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FLFelicia Laurentfalicia.hashnode.devAug 17 · 4 min read

5 Common Mistakes When Building RWA Tokenization Smart Contracts

Blockchain development has grown far beyond simple token transfers. One of the fastest-growing areas today is RWA tokenization development. This means taking a real-world asset like real estate, an in

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MAMuhammad Asifblockhertz.hashnode.devAug 8 · 3 min read

Reentrancy Attack in Solidity: What It Is, Real Examples, and How to Prevent It (2026)

A reentrancy attack occurs when a malicious smart contract repeatedly calls a vulnerable contract's withdraw function before the balance updates — draining all funds in a loop. It is the most common s

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NNebojsaKonstadefimath.hashnode.devAug 6 · 8 min read

How I Wrote A Fixed-Point Solidity Sqrt That Runs In 197 Gas

I live by a simple rule: if a function is on your pocket calculator, I want it in Solidity — as fast as possible, and precise enough that you never have to think about it. Square root is exactly that

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PSPeter Sjolinpigfox.hashnode.devAug 5 · 8 min read

What eight live testnet contracts taught me about testing, gas, and putting an LLM in a settlement path

Most write-ups about smart contract work show you the parts that worked. This one includes the parts that didn't, because those are the ones worth reading. Seven contracts, deployed to Base Sepolia. E

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SSShakeel Sklsolvebar.hashnode.devAug 3 · 2 min read

ABI Decoder/Encoder: Read Any Calldata, Build Any Function Call, Right in Your Browser

Every contract call boils down to a hex string. This tool turns that hex string back into something you can actually read — and back again. Paste any calldata — a transfer, an approve, a DEX swap — an

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#solidity

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Trending tags this week

Who gets to stall? Designing timeouts and dispute windows for a P2P escrow contract

How to Test Liquidations Before Your Lending Protocol Hits Mainnet

Reconstruct a Smart Contract Deployment from On-Chain Evidence

Writing Efficient Smart Contracts with Solidity — Practical Patterns

We Just Launched Krionex: A Non-Custodial Workspace for Deploying Smart Contracts Across 14 EVM Networks

5 Common Mistakes When Building RWA Tokenization Smart Contracts

Reentrancy Attack in Solidity: What It Is, Real Examples, and How to Prevent It (2026)

How I Wrote A Fixed-Point Solidity Sqrt That Runs In 197 Gas

What eight live testnet contracts taught me about testing, gas, and putting an LLM in a settlement path

ABI Decoder/Encoder: Read Any Calldata, Build Any Function Call, Right in Your Browser