The Maker-Checker Pattern for Fintech Ops
RBAC confirms the person has the right role, but it can't confirm the action is correct.
Four Protocols Are Solving Agent Identity for US Banks
Four protocols are converging to solve how an AI agent proves who it represents, what it can touch, and what the customer actually approved.
engineeringWhat Happens When a Consumer Presses Earn
A consumer sees 6% APY and one button, but behind it sit five protocols, two blockchains, and a utilization curve that can lock their funds.
engineeringThe Three Axioms of Fintech Engineering
Three constraints from production postmortems that prevent the most expensive category of fintech bug.
engineeringThe Ledger Is the Product
Every fintech product is a UI on top of a ledger. Get it wrong and every layer above inherits the error.
engineeringGold Certificates, Usage Rights, and the Cooperative Stack
What if the floor price for art came from the gold in the certificate, not the artist's reputation?
engineeringThe Model Gateway Is a Compliance Boundary
The routing layer between your app and your LLM provider is a regulatory surface you probably haven't secured.
engineeringYour AI Agent Has a Credit Card and No Spending Limit
A $5 spending cap doesn't stop twenty $5 payments.
engineeringThe Token Arbitrage Economy
Stolen API keys, mass-registered accounts, and USDT resale markets. AI compute fraud looks nothing like payment fraud, and the defenses are different too.
engineeringAgent Commerce Needs Evidence, Not a Reason Code
What would a dispute layer actually look like if you built one?
engineeringWhat a Transfer Agent's Blockchain Actually Looks Like
Everyone builds the smart contract first. The hard part is everything between the chain and the lawyer's desk.