The Fee Assumption Quietly Wrong in Most Backtests
If you've written a crypto backtester, there's a decent chance one line in it is quietly wrong. It's not the slippage model, not the funding rate, not…
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Why I Stopped Ignoring Position Size (and What It Taught Me About Stops)
Why I Stopped Ignoring Position Size (and What It Taught Me About Stops) Quick context (why you're writing this) Here's the thing: I spent a whole wee…
The "AI Quant Bot" Mirage: Inside the Polymarket Copytrade Scam Network Flooding Crypto Twitter
An investigation into a coordinated cluster of verified X accounts manufacturing fake trading "success stories" to funnel victims into Telegram draine…
What I learned scraping 141 crypto cardholder agreements
On 3 February 2026, three unrelated crypto cards — CEX.IO Card, Trustee Plus, and IN1 — stopped processing payments on the same day. They had no paren…
Keccak256 From Scratch in 200 Lines of Kotlin (Because Web3j Was 8 MB)
Web3j is 8 MB. My APK is 4.5 MB. So I wrote the Ethereum hash function from scratch. Why Not Just Import Web3j? I was building a native Ethereum walle…
The Definitive Guide to Web3 Wallet Segmentation and Analytics
Key Takeaways Wallet segmentation groups addresses by type and behavior: hot wallets for real-time engagement signals, cold wallets for high-value hol…
Building an Interactive Merkle Tree Visualizer — One Byte Changes, the Whole Root Changes, in O(log n) Hops
"If a Merkle tree commits to a million transactions and one of them is altered, the root changes. To prove inclusion of any one transaction, you only …
Best Product Analytics Tools for DeFi Teams
Key Takeaways DeFi product analytics requires onchain and offchain data integration because the blockchain records smart contract interactions that tr…