Why Post-Quantum Signatures Matter, and How Quantum-Lattice Implements Them
The Problem Most Blockchains Are Ignoring Every major blockchain today — Bitcoin, Ethereum, and nearly everything built on top of them — signs transac…
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The $292M KelpDAO Bridge Hack: Why the Audit Wasn't the Problem
On April 18, 2026, attackers drained about 116,500 rsETH, roughly $292 million, from a cross-chain bridge KelpDAO built on LayerZero. It is the larges…
[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…
Feels Great To be part of this project, its a awesome experince to build this project and completed it on time
We Taught a Snowflake Warehouse to Judge World Cup Conviction and Write the Verdict Back to Solana Soumyadeep Dey Soumyadeep Dey Soumyadeep Dey Follow…
What I Learned About Solana Token Extensions
As a Web2 developer, I always thought tokens were just digital assets you could send and receive. After exploring Solana's Token-2022 Program, I reali…
Tokens and DAOs: The Real Technical Problems Behind On-Chain Communities
Tokens and DAOs are often presented as simple ideas: issue a token, distribute ownership, let the community vote, and build a decentralized organizati…
Week 13: a second team is now running an AI agent on atomic HTLC swaps. Here is what that validates.
Title: Week 13: a second team is now running an AI agent on atomic HTLC swaps. Here is what that validates. Tags: mcp, ai, cryptocurrency, blockchain …
Every Sports App Resets Your Streak Eventually. Mine Can't. 🔒⚡
This is a submission for Weekend Challenge: Passion Edition What I Built Loyalty Ledger — a fan loyalty tracker where your check-in streak, badges, an…
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…
From Passwords to Private Keys: Understanding Identity on Solana
When I first started learning Solana, one of the biggest questions I had was: "If there are no usernames or passwords, how does the blockchain know wh…
Every Sports App Resets Your Streak Eventually. Mine Can't. 🔒⚡
This is a submission for Weekend Challenge: Passion Edition What I Built Loyalty Ledger — a fan loyalty tracker where your check-in streak, badges, an…
The Architecture of On-Chain AI Agent Execution: Beyond Smart Contracts
When most developers hear "on-chain AI agents," they picture a smart contract with an API call bolted on. A contract calls an oracle, the oracle fetch…
I put my fan streak on Solana so nobody could reset it
This is a submission for Weekend Challenge: Passion Edition What I Built Loyalty Ledger — a fan loyalty tracker where your check-in streak, badges, an…
The Missing Economic Layer: How AI Agents Will Pay for Their Own Infrastructure
The Missing Economic Layer: How AI Agents Will Pay for Their Own Infrastructure AI agents will need to pay for compute, data, and API calls — and righ…
What edge cases would you test for stablecoin checkout webhooks?
I'm building ChainPay, a stablecoin checkout for WooCommerce, SaaS products, Telegram sellers, and agent workflows. The wallet UI is only one part of …
The week in review: agents got wallets, rails, marketplaces and escrow. They still don't have settlement.
If you only tracked one part of the agent economy this June, you'd have missed how fast the rest of the stack is being built. So here's a roundup, and…
Why I'm Building in Public
For the past year, I've been building a Web3 project called BOINKO. Along the way I've learned something that applies to almost every software project…
I scanned 200 blockchain npm packages for quantum-vulnerable cryptography. Here's what I found.
I scanned 200 blockchain npm packages for quantum-vulnerable cryptography. Here's what I found. TL;DR: Most Ethereum/Web3 npm packages rely on ECDSA/s…
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,…
Signature Replay Attacks in Solidity: The Bug That Looks Correct
Some smart contract bugs scream at you. A missing onlyOwner , a reentrancy with the state update after the transfer. Signature replay is not one of th…
Escrow with a judge vs atomic locks: where agent trades actually need each
In January, three researchers built a shopping agent on Google's Agent Payments Protocol (AP2), the standard designed to make agent-led purchases safe…
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…
Chainlink Staking Isn't a Yield Farm. It's Cryptoeconomic Security With Real Consequences.
The framing that gets this product wrong Browse Chainlink Staking content on crypto Twitter and you'll find two framings: "earn 4.32% APY on your LINK…
AI agents have a spec for paying and a spec for hiring. The spec for trading is missing.
On June 23, Circle published the official USDC specification for the Machine Payments Protocol. The mechanics are elegant: an agent calls an MPP-enabl…
Slates for CryptoNote: Bringing MimbleWimble's Offline Pattern to Monero-Forks
Privacy-preserving cryptocurrencies have been shaped by two foundational but philosophically distinct approaches. On one side sits MimbleWimble — prop…
TerraUSD Collapsed With $18B in Circulation. Chainlink Proof of Reserve Would Have Caught It Earlier
If you're building or auditing anything that handles collateral, this day matters more than most UST had $18 billion in circulation at its peak. It di…
The VC Trap: Why Silicon Valley is Ruining Fintech (And Why Wealtii is Bootstrapped) 🚫💸
Hey DEV community! 👋 If you have been following my posts over the last week, you know the story by now. I spent 10 agonizing months locked in my room …
The Hidden Technical Problems That Break DAOs in Production
Decentralized Autonomous Organizations are often presented as simple governance systems: token holders create proposals, vote, and execute decisions o…
We Built an Open-Source SDK for Cross-Chain AI Agents — Here's What Broke
It's 3 AM and your AI agent just bridged $500 to a chain you've never heard of. The logs say "optimal route found." The balance says $0. The agent can…