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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Building a Full-Stack Project with Blockchain Security: My 3-Week Journey
Over the past three weeks, I’ve been fully immersed in building a complete full-stack application—and I can confidently say it has been one of the mos…
Three Sui Exploits, One Disease — Why "The Math Looked Fine" Keeps Costing Hundreds of Millions
Cetus lost $223M to a shift overflow. Aftermath lost $1.14M to a negative fee. Bucket Protocol ships a decimal scaling bug today. All three passed aud…
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…
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…
When the exit code lies: fork retractions, lost transactions, and trusting the chain in midnight-node
Your transaction tool reports FAILED_TO_FINALIZE . Your CI marks the job red. Your retry logic fires. But the block explorer says the transaction fina…
What I Learned About Token Design on Solana as a Web2 Developer
A week ago my Solana tokens were just random strings of characters. No name, no rules, no personality. By the end of this week I had built tokens that…
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…
Midnight sprint: a sealed-bid auction, a stubborn error 170, and everything it taught me"
I'm a self-taught builder, not a career dev. I lean on AI to help me a lot when my syntax breaks and explanations are rather verbose, I read a lot of …
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…
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…
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…
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…
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…
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…
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…
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…
Architecting Non-Custodial Batch Transactions for Cross-Chain Wallet Consolidation
Maintaining a robust testing pipeline or managing automated node infrastructure often requires orchestrating dozens of isolated EVM wallets. Over time…
How I decide what to build, and what to throw away, as a solo founder building an L1
I work on NOVAI alone right now. No team to argue with, no senior engineer to catch the thing I can't see, no reviewer to tell me the idea I am in lov…
Wealtii -> How I Built a 315,000 Line Fintech Platform Solo in 10 Months
Hey DEV community! This is my first time posting here. Over the last 10 months , I have been locked in my room building a fully automated digital asse…
Shielded Token Contracts on Midnight: Real Errors, Real Fixes
Written from months of grinding on shielded liquidity DeFi protocols on Midnight. If you've been trying to build anything serious with shielded fungib…
Harnessing the Power of Bitcoin Lightning: Reflections on the Kisumu Bootcamp & Building "Sky Fee"
A week ago I wrapped up an incredible, high-intensity experience at the Kisumu Lightning Developer Bootcamp, hosted right here at Zone01 Kisumu! The b…
The Bug Behind the Bug: Why Protocol Failures Rarely Live in One Layer
Blockchain incidents are often explained too simply: “consensus stopped,” “the VM produced the wrong state,” or “a malformed transaction crashed valid…
jackswap.com Malicious Contract Drained My $3,670.00 Balance
jackswap.com Malicious Contract Drained My $3,670.00 Balance The transition from a confident cryptocurrency trader to the victim of a silent, automate…
When an On-Chain Loan Defaults: The Mechanics, and the Options for Resolving It
On-chain lending is arriving on the XRP Ledger in earnest. XLS-65 (Single Asset Vault) and XLS-66 (Lending Protocol) bring native lending and borrowin…