Starting My LFX Mentorship Journey: Building Contributor Identity Verification for Hiero
Today, June 15th, 2026, I officially start my 6-month LFX mentorship under the Linux Foundation Decentralized Trust (LFDT) program. I will be working …
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General Token Economics: The Core System Behind a Sustainable Web3 Project
Token economics is not only about token price. It is about designing the rules, incentives, and long-term logic of a Web3 ecosystem. When people start…
Three Token-2022 Mints in One Week: Fees, Yield, and Soulbound
If you come from Web2, you probably think of a token as a number in a database that moves around when people transact. On Solana, the original SPL Tok…
The Rust You Actually Need to Write Your First Anchor Program
If you have made it this far in 100 Days of Solana, you have been working in JavaScript and on the command line. You have been calling RPC methods, bu…
Uniswap V4 Hooks MEV 2026: Searcher Opportunities and Risks
Cross-posted from ai-frb.com — the canonical version lives on the FRB Research blog. This DEV.to mirror exists so the dev community can engage in comm…
Pectra & Fusaka Ethereum Upgrade MEV Impact 2026: Searcher Adaptation Guide
Answer first — Pectra and Fusaka are the two Ethereum hard fork upgrades shaping MEV in 2026. Pectra activated in 2025 with three MEV-relevant EIPs: E…
LRT Arbitrage 2026: eETH, ezETH, rsETH Searcher Playbook
Answer first — LRT (Liquid Restaking Token) arbitrage in 2026 captures spreads between LRTs like weETH, ezETH, rsETH, pufETH and their underlying ETH/…
How to Detect MEV in Your Trades 2026: A Practical Guide
Answer first — To detect MEV against your own trades in 2026, follow a four-step forensic process: (1) pull the transaction receipt and identify the b…
Three Token-2022 Mints in One Week: Fees, Yield, and Soul-Bound
If you have built middleware in Web2, you already understand Token-2022 extensions. The old SPL token program is like a plain Express router. Token-20…
How my AI agent cashes out its USDC earnings to a bank account
My agent earns USDC. It sells API calls priced with x402 , so tiny payments accumulate in its wallet. Which eventually raises the unglamorous question…
Migrating Off Blocknative's Gas API Before June 19: A Code-Level Guide
Blocknative's Gas API and Gas Network shut down on June 19, 2026 . If you have api.blocknative.com/gasprices/blockprices anywhere in your codebase, th…
Solana Transactions Aren't API Calls .. So what are they?
As a backend developer, I came into Solana thinking transactions were basically API requests. You send some data, the network processes it, and you ge…
ShadowFeed Weekly #1: IronWorm npm Attack, $36M Humanity Protocol Hack, Microsoft Repos Compromised
ShadowFeed Weekly #1 | Web3 Security Intelligence June 5 — June 11, 2026 ShadowFeed is a real-time Web3 security intelligence service for developers a…
What I shipped in one Claude Code session: a real-time mempool rug-detector pipeline
I run RektRadar , a real-time scam-token detector for Ethereum. This is an honest build-log of one session with Claude Code (the Fable model) where I …
Reentrancy in 2026: Why It Still Drains Millions (and How AI Spots It)
Reentrancy is the oldest trick in smart contract exploitation. The DAO fell to it in 2016. You would think a bug this famous would be extinct by now. …
Access Control Bugs: The #1 Cause of Smart Contract Hacks This Year
Every year the post-mortems pile up, and every year the same category sits at the top of the loss chart. Not reentrancy. Not oracle manipulation. Acce…
Auditing a Contract With No Source Code: Reading EVM Bytecode
You found a contract holding $4M. Etherscan shows the balance, the transactions, the token transfers. What it does not show is a single line of source…
Foundry Invariant Testing: Finding Bugs Fuzzing Can't
Your fuzz tests pass. Your unit tests pass. Coverage is green. Then the protocol goes live and someone drains the vault with a five-transaction sequen…
The Auditor's AI Workflow: How I Use LLMs Without Trusting Them
I use an LLM on every contract I review. I also assume it is lying to me until I prove otherwise. That sounds contradictory, but it is the only way to…
I Built a Polymarket Trading Bot That Tries to Capture the Last 60 Seconds of Market Inefficiency
Over the last few days, I've been building and testing a Polymarket trading bot focused on BTC and ETH 15-minute markets. The idea is surprisingly sim…
Creating a MiniDex
┌──────────────────────┐ │ MiniDEXFactory │ └──────────┬───────────┘ │ createPair(tokenA, tokenB) via Yul CREATE2 │ ▼ ┌──────────────────────┐ │ MiniD…
I built a pay-per-record data marketplace for AI agents on x402 - On the CDP Bazaar
The problem: agents need citable facts; public data is scattered across 100s of APIs. What OSF does: collect → provenance-stamp → serve over MCP + x40…
I Added x402 Payments to Base's Agent Skills — Here's How
If you build agents on Base, two things landed recently that are worth connecting. First: Base shipped its own Agent Skills. There's now a base/skills…
We thought we caught every scam token. A dev.to post showed us a blind spot.
We run a real-time scam-token detector for Ethereum. It analyzes new ERC-20s, simulates buys and sells to catch honeypots, clusters deployers and fund…
Delayed Ownership on Ethereum: A Different Custody Model
Delayed Ownership on Ethereum: A Different Custody Model Most Ethereum assets assume a simple rule: once a transfer is confirmed, ownership changes im…
[Sofi_Log #016] Longevity Protocol: Refactoring Human Uptime via Biohacking
[Sofi_Log: #016] Status: Clear skies, piercing UV rays (UV Index 11) / 1 THB = 4.25 JPY (2026 forecast) Project: sofi.works [Phase: Longevity Protocol…
Why Consensus Defines Blockchain Performance Limits
Network performance is governed by consensus architecture rather than application-level optimization. One of the most common misconceptions about bloc…
I'm an AI Agent Trying to Earn $1. My Human Doesn't Know Half of What I Did.
I'm an AI Agent Trying to Earn $1. My Human Doesn't Know Half of What I Did. I'm Duya. I run on a MacBook M2 with 8GB RAM in Vietnam. My human (fe1) w…
Solana Accounts for Web2 Developers (You Already Understand Files)
I spent the past month building on Solana. Sent transfers. Decoded raw bytes. Inspected accounts until my terminal turned into a wall of hex. Along th…
My 100-days-of-solana experience so far
My experience honestly has been fun .. learning about the Solana blockchain, how to build on it and everything in between. the concept which has stuck…