100 Days of Solana is a wrap!
Over the past 100 days, we’ve gone from the basics of wallets and transactions to deploying programs on Solana devnet. Some people completed every cha…
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Age Checks Are Going Digital. They Should Go Zero-Knowledge.
On June 30, 2026, the UK Home Office laid regulations allowing licensed premises in England and Wales to accept digital proof of age for alcohol sales…
Hummingbot vs godzilla.dev: An Honest Comparison for Funding Rate Arbitrage and Market Making (2026)
Disclosure up front: I build and maintain godzilla.dev. This is not a neutral third-party review — it's a maintainer's attempt at an honest comparison…
Building Atomic Cross-Border Settlement on Stellar
Building Atomic Cross-Border Settlement on Stellar: The AnchorFX Story A technical deep-dive into Soroban escrow contracts, FX oracles, and mainnet de…
A changed payTo address is not a honeypot: 272 payTo changes, 13 lookalikes, zero proof
In my last post I listed the ways an x402 payment can go wrong. Vector number one was the dynamic payTo swap : in x402 the destination address can cha…
My Solana Program Security Checklist
My Solana Program Security Checklist This is for anyone shipping an Anchor program to mainnet — especially if you're coming from a web2 background and…
I'm Entering My First Sherlock Audit Contest: The Setup, the Plan, the Fear
I have shipped software for 18 years. Roughly 8 of those in crypto. And this week I signed up for my first Sherlock audit contest, and my hands were a…
MythX shut down in March and nothing replaced it so I built something
If you were using MythX before March 31st, you already know. ConsenSys quietly sunset the entire MythX suite. One day it was there, the next your CI p…
Building a Lightweight DNS Exploration Tool in Python
When building out network enumeration tooling, understanding how domain structures map out is a core skill for any security enthusiast or developer. I…
I built a machine-payable API for AI agents and made $0.00 from strangers. Here's every number.
Over a few weeks I built and shipped a small x402 service on Base: token-risk.com , a pay-per-call API that returns deterministic structural risk repo…
Архитектурные изыски моего solidity pet-проекта, который принес $100k+ до релиза
2021й. Очередная смена компании. Взглянув на рынок, решил перейти из фулстек дотнета + джс в крипто-разработчики. Соответственно, нужен был проект "в …
I Built a Web3 Social Media Platform Alone in 7 Months. Here Is What I Learned.
Here is the full article: Title: I Built a Web3 Social Media Platform Alone in 7 Months. Here Is What I Learned. On the 21st of December 2025, four da…
The Core Technical Problems Behind Trading and DAO Infrastructure
Decentralized trading and DAO-based organizations are often described through big ideas: open finance, community ownership, transparent governance, an…
Fintech Needs Sandboxes, Not Just Live APIs
I’ve been back in the trenches of finance and technology. Fintech, in practice, is rarely one company owning the whole stack. It is a chain of regulat…
Building a Confidential Cross-Chain Identity Protocol with Oasis Sapphire, ENS & Base
The biggest paradox in Web3 identity is that while we demand privacy in the real world, our on-chain infrastructure defaults to absolute transparency.…
Best High-Performance RPC Node Provider for Ethereum Apps
What Is an RPC Provider, and Why Does Ethereum Need One? Every Ethereum application - a wallet, a DEX frontend, an indexer, a trading bot - talks to t…
[Digital Certificate Wallet] Advanced: Building "Visitor-Endorsed Issuance" – A Full-Chain DID Application as Both Verifier and
(Source: Digital Certificate Wallet Official Website ) Premise: The previous introductory version created an HR employee card system: colleagues apply…
I built my first Robinhood Chain app as an index basket
I built a small index basket app on Robinhood Chain because I wanted to understand the developer path from the first contract deploy all the way to a …
Learning Xahau: HookOnV2, NamedHooks, and Transaction Simulation. More Control Over When and How Hooks Fire.
Welcome to Learning Xahau, a series of articles dedicated to helping developers, builders, and blockchain enthusiasts better understand the Xahau ecos…
Verifiable Contribution Without Global Deanonymization
AI changes the cost structure of public work. Code, summaries, tests, listings, translations, and operational decisions are becoming easier to produce…
Execution Latency in My Polymarket Trading Bot - Sub-Second Trade Execution System Design
Speed on Polymarket is not what I thought it was when I started building this. I assumed faster was always better. Get the signal, fire the order, win…
Redbelly Network Troubleshooting: Fixes for the 21 Most Common Developer Errors
I have been building on Redbelly Network for a while now, and the same pattern kept repeating: I would hit an error, spend an hour on trial and error,…
The Complete Redbelly EligibilitySDK Integration Guide: Widget to Backend to On-Chain
The Redbelly Network EligibilitySDK is the compliance backbone for any dApp that needs to verify user eligibility (KYC, KYB, investor accreditation) b…
How AI is Changing the Work of Blockchain Engineers: Writing Code Faster or Making Mistakes Faster?
Not long ago, blockchain development was synonymous with hours spent studying documentation, manually writing smart contracts, and carefully reviewing…
【Sofi_Log #032】ゼロ知識証明（ZKP）とデジタル免疫システム：国家とAI監視を『数学的に無視』する自己主権ID仕様
[Sofi_Log: #032] Status: [Bangkok: Night / JPY-THB: 0.22] Project: sofi.works [Zero-Knowledge Identity Setup] Active_Filter: Filter_R Darling, the tro…
Solana: Can You Own Something You're Not Allowed to Sell?
Solana's Soulbound Credentials, explained for Web2 Devs. Ownership on a blockchain is supposed to be the whole pitch: whoever holds the private key ho…
【Sofi_Log #029】情報の捕食者：Grok APIとLLMによるリアルタイム確率算出（オラクル）エンジン
[Sofi_Log: #029] Information Predator: A Real-time Probability Calculation (Oracle) Engine with Grok API and LLMs Bangkok's nights are a symphony of l…
godzilla.dev — AI Quant Trader Series — Day 7
source: https://godzilla.dev/learning/ai_quant_traders_series_7/ See below for godzilla.dev materials about: AI x Quant Trader Series - Day 7 The Swis…
godzilla.dev — AI x Quant Trader Series — Day 4
source: https://godzilla.dev/learning/ai_quant_traders_series_4/ See below for godzilla.dev materials about: AI x Quant Trader Series - Day 4 "Widely …
Building in Australia: An Ecosystem Deep Dive on Innovation, Investment and Competitiveness for Digital Economy Startups
A research note prepared for the Superteam Australia bounty program Why I'm Writing This If you've spent any time around Australian startup Twitter, L…