Articles on AI, post-quantum cryptography, ISO 20022 and the future of payments.
TOPIC
Cross-border message migration, structured-address compliance, SEPA Instant, SWIFT gpi, and the wholesale-payments rails carrying it all. Tools, playbooks, and the regulatory clock.
The UK has appointed a Wholesale Digital Markets Champion to force interoperability inside the Digital Securities Sandbox (DSS). Tokenised gilts settle this question first — HQLA on DLT, atomic against tokenised cash, with intraday repo as the prize.
ISO 20022 after migration is a data-product opportunity. Structured addresses, purpose codes, invoice details, investigation messages, and richer payment status events can become reconciliation, fraud, liquidity, compliance, and analytics products.
The UK Payments Forward Plan and April 2026 policy package point to a single coherent framework for traditional payments, stablecoins, tokenised deposits, open banking, and AI-agent payments.
Agentic payments in 2026 have moved from concept to live transaction. The banking challenge is no longer whether AI agents can initiate payments, but how consent, liability, identity, auditability, fraud controls, and protocol interoperability should work.
Global wholesale payments in 2026 are being reshaped by ISO 20022 harmonisation, RTGS renewal, extended settlement windows, non-bank access, API governance, DLT pilots, and cross-border payment fragmentation. The economic issue is interoperability, not messaging alone.
Stablecoins cannot pay yield under the GENIUS Act. On 8 May 2026, BlackRock filed two SEC registrations for products that solve this constraint by being regulated as money market funds rather than stablecoins — while behaving, in the wallet, like yield-bearing dollars. A close reading of BRSRV, BSTBL, and the OCC rulemaking they respond to.
From November 2026, SWIFT CBPR+ requires structured postal addresses in cross-border payment messages. Unstructured address lines (AdrLine alone) will no longer be accepted for key party fields in pacs.008. At minimum, TwnNm and Ctry are required, with StrtNm and BldgNb or PstBx recommended. With six months to go, 65% of payment messages still contain unstructured addresses and 44% of banks remain behind schedule.
Quantum computing threatens payment system cryptography. The EPAA white paper outlines the structural risk and the urgent case for PQC migration.
Automate the creation of ISO 20022 pain.001 payment files from CSV or SQLite. pain001 is the open-source Python library that streamlines compliance.
A technical deep-dive into how the EXTC platform was built on Ethereum ERC-223 in 2018: token architecture, multi-sig disbursements, time-locked transfers, and collateral-backed instant loans.
In early 2018, the EXTC platform explored faster cross-border payments via Ethereum ERC-223 smart contracts — an early blueprint for what decentralised finance would later build.