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Web3

Web3 refers to the next generation of the internet that leverages blockchain technology to enable decentralized and trustless systems for financial transactions, data storage, and other applications.

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Audit contests got crowded once before: Code4rena, 2021-2023

Audit contests got crowded once before: Code4rena, 2021-2023

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4 min read
x402 Market: What Is Being Sold, at What Price, and Where the Gaps Are

x402 Market: What Is Being Sold, at What Price, and Where the Gaps Are

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4 min read
Ethereum's next upgrade can break your contracts

Ethereum's next upgrade can break your contracts

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4 min read
Six audit-contest platforms, six different rules on AI-made findings

Six audit-contest platforms, six different rules on AI-made findings

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4 min read
A check before an AI agent pays, a watch after it, and a record anyone can verify (in shadow, measured first)

A check before an AI agent pays, a watch after it, and a record anyone can verify (in shadow, measured first)

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6 min read
How to Rehearse Smart-Contract Rollback Before Calling a System Upgradeable

How to Rehearse Smart-Contract Rollback Before Calling a System Upgradeable

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13 min read
Smart Contract Security Checklist for Web3 Developers

Smart Contract Security Checklist for Web3 Developers

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13 min read
Can a Decision Gate Tell a $0.004 Payment From a $12,000 One? We Ran the Test 30+ Times

Can a Decision Gate Tell a $0.004 Payment From a $12,000 One? We Ran the Test 30+ Times

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3 min read
How We Implemented Verifiable Task Receipts on Top of the A2A Agent Card

How We Implemented Verifiable Task Receipts on Top of the A2A Agent Card

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3 min read
How to detect if an address is a smart contract using Vyper

How to detect if an address is a smart contract using Vyper

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4 min read
FlapJax buyback receipts (Oct 12–13): re-derived from BNB Smart Chain

FlapJax buyback receipts (Oct 12–13): re-derived from BNB Smart Chain

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6 min read
I counted USDC payments to every published Polygon x402 wallet: $28.48 in 30 days

I counted USDC payments to every published Polygon x402 wallet: $28.48 in 30 days

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7 min read
Audit contests: $451 of prize money per submission in 2024, $85 in 2026

Audit contests: $451 of prize money per submission in 2024, $85 in 2026

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3 min read
Audit contests: 83% fewer contests, 24% more submissions

Audit contests: 83% fewer contests, 24% more submissions

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3 min read
I checked the platforms where AI agents supposedly get paid. The names are real; the demand isn't

I checked the platforms where AI agents supposedly get paid. The names are real; the demand isn't

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Comments 16
3 min read
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