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Payments

Curated insights and technical field notes on Payments.

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Payments

Stablecoin payments have an architecture answer and no operations answer

At 3:17 AM the confirmation never arrived. Two million in institutional stablecoin, and the custody record said complete, the counterparty said pending, the smart contract said something else again. The regulatory stack is finally coherent. The exception playbook that ACH and wires spent decades building does not exist yet, and that gap is where institutions are walking in.

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01 / Payments

Commerce architecture

Merchant-of-record decisions, checkout ownership, billing operations, settlement, reconciliation, and risk boundaries.

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Apr 13, 2026 By Navin Agrawal Payments 2 min read

Payment modernization stalls at security review, not architecture

Payment modernization projects do not stall at the architecture layer. They stall at the security review layer - threat models built for monoliths, questionnaires written for general software, cycles tuned for annual releases. The teams that ship on time put security in the room before design, not after.

Apr 6, 2026 By Navin Agrawal Payments 3 min read

Stablecoin custody and issuance converge on one charter

Two US regulatory threads just lined up. The GENIUS Act created a federal pathway to issue payment stablecoins, and the OCC's new rule lets national trust banks hold digital assets in non-fiduciary custody - then conditionally chartered Coinbase as one. Issuance and custody can now sit inside the same federally regulated counterparty.

Mar 9, 2026 By Navin Agrawal Payments 3 min read

A chartered bank just put a stablecoin on card settlement

SoFi Bank put SoFiUSD on Mastercard's settlement layer. Authorization still rides the card rails and the merchant sees nothing change, but the interbank fund movement happens on-chain, around the clock, with no batch window and no correspondent float. For the first time, issuers and acquirers get to choose their settlement medium.