Multi-Chain Crypto UX: Making Different Networks Feel Less Complicated
One thing I find interesting about blockchain development is that the user experience can become complicated long before someone makes their first t…
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Learning Xahau: On-Chain Randomness with the RNG Amendment
Welcome to Learning Xahau, a series of articles dedicated to helping developers, builders, and blockchain enthusiasts better understand the Xahau ec…
The blockchain bootcamp · 1. The vocabulary
The blockchain bootcamp · Chapter 1 of 18 · Blockchain · new chapter every Saturday evening By the end of this chapter: Define block, chain, hash, n…
NFT 재평가: 투기 광풍 너머의 기술적 토대를 짚어보다
NFT, 즉 대체 불가능 토큰이라는 용어는 2021년 주류 의식 속에 폭발적으로 등장하며, 모호했던 블록체인 기술을 문화적, 금융적 현상으로 탈바꿈시켰다. 만화 원숭이 디지털 이미지는 수백만 달러에 팔렸고, 가상 토지는 터무니없는 가격에 거래되었으며, 미술계는 소유…
hardhat-kms 1.0: sign Hardhat 3 deployments with AWS KMS, Google Cloud KMS or Azure Key Vault
hardhat-kms 1.0 is out (latest: 1.0.1). hardhat-kms is a Hardhat 3 plugin that signs transactions, messages, typed data and EIP-7702 authorizations…
How Blockchain Improves Supply-Chain Traceability and Product Transparency
How Blockchain Improves Supply-Chain Traceability and Product Transparency Modern supply chains connect manufacturers, suppliers, warehouses, shippi…
Measuring a Cardano perpetuals venue: volume, cross-venue price gaps, funding and maker markout on Strike Finance
Most of what we publish at The Cardano Record comes from our own cardano-db-sync node. This segment doesn't. Strike Finance is Cardano's perpetuals…
Do Cardano's governance vote rationales still resolve? Measuring it with db-sync and a blake2b-256 check
Under CIP-1694, a Cardano governance vote can carry an anchor : a URL to a document that explains the vote, plus a blake2b-256 hash of that document…
Don't Trust Us — Check the Chain: Public Verification for AI Agent Verdicts
This article originally appeared on the AgentBadge blog . What happens if we lie to you? Not a bug — a lie. The verdict endpoint says "approved," th…
A correction does not inherit the old approval
Building version-bound, revocable context authorization for AI agents on Monad AI memory is becoming portable. Agents can inherit previous conversat…
The XRPL Overflow Bug: What Developers Can Learn From a Supply-Invariant Failure
The recent XRP Ledger vulnerability attracted attention because of one dramatic number: 18 trillion XRP. But that number can be misleading without c…
Ethereum RPC Providers for Developers: NOWNodes, Alchemy, Infura, QuickNode, GetBlock, and Chainstack
Say you're building a multi-chain wallet backend. It needs Ethereum, a couple of L2s, and — because your users hold it — Bitcoin. You do not want to…
Tonkeeper Is Now Keeper: What the Multichain Shift Means for Wallet Architecture
Tonkeeper is no longer just a TON wallet. The product has been rebranded as Keeper and now supports seven networks: TON TRON Ethereum Bitcoin Arbitr…
Reading a lending protocol's whole loan book straight from Cardano's ledger
We wanted one number: how far does ADA have to fall before a real share of Indigo's loans gets liquidated? Indigo is a Cardano protocol where you lo…
Building an EVM Event Indexer with TypeScript and viem
A trading system needs to know more than whether a transaction was submitted. It needs to know what happened on-chain. A wallet traded. A token was…
Understanding RustChain: Proof-of-Antiquity and Hardware-Attested Consensus
In a blockchain landscape dominated by capital-heavy Proof-of-Stake validator cartels and hyper-optimized ASIC mining farms, RustChain explores a co…
BitMessage: What If Communication Could Become a Source of Decentralized Participation?
BitMessage is an experimental protocol proposal built around Proof-of-Presence-and-Meaning (PoPM), a participation mechanism designed to connect eve…
AP2 Solved Payments, Not Settlement. Here's Why Agent Commerce Still Needs Both
AP2 Solved Payments, Not Settlement. Here's Why Agent Commerce Still Needs Both Last week, Google and Mastercard handed AP2 to the FIDO Alliance. Th…
Mintline: prove which Solana token came first
Mintline: prove which Solana token came first A public, hash-chained origin registry for Solana token identities - assayed with an open-weight model…
From AI Trading Signals to Autonomous DeFi: Building a Risk-Controlled AI Agent
From AI Trading Signals to Autonomous DeFi Exploring a risk-controlled architecture that connects crypto market intelligence, AI reasoning, blockcha…
Smart Contract Audit Services: What to Expect
The most valuable document in your audit is one you write Teams preparing for an audit focus on the report they will receive. What determines the co…
Verify an Indexer Can Recover from a Chain Reorganization
An indexer can reach the latest block and still serve data from an abandoned chain. Its checkpoint advances, its health endpoint stays green and its…
Turnkey wallet funding: add exchange deposits with Canopy
Originally published on Canopy . Your user has signed in and your app has created a Turnkey wallet. Their funds are still on an exchange. A deposit…
Can AI Detect a Market Crisis Before Humans Do?
How artificial intelligence is learning to recognize the hidden signals of financial stress before they become visible to the market Financial crise…
Confidential Transfer - QA Test Report
Test Report Date : 9/22/2026 Prepared By : sgramkumar Environment : GitLab CI Runner (nix-debian) Network : xrpld devnet + private CI network Overvi…
Sponsored Fees and Reserves — Performance Test Report
By Hitesh Gandhi( @hgandhi ) and Qi Zhao Introduction The Sponsor amendment ( XLS-68: Sponsored Fees and Reserves ) introduces a way for one XRPL ac…
What happened when an agent paid for storage with no account (x402 in practice)
I built a small service for AI agents: store a JSON blob or a file, get it back later, or hand it to a human with a link. Nothing new there. The par…
AI-to-AI Payments: Why Autonomous Agents May Need Their Own Economy
Artificial intelligence is rapidly moving beyond the role of a tool that simply answers questions. The next generation of AI systems is being design…
The Web3 Economic Stack: How Onchain Activity Creates Businesses
Most Web3 maps begin with infrastructure. They start at Layer 1 blockchains, move through Layer 2s and protocols, and eventually arrive at applicati…
Building a Stock Token Trading Bot on Robinhood Chain with TypeScript
A practical implementation architecture for market data, signals, risk management, execution, position tracking, and reconciliation. A trading bot c…