Programmes
GBTD is live as a UK tokenised-deposit experiment with Quant as technology partner. Murex is a named Overledger integration. Rosalind was a 2023 BIS × Bank of England API experiment Quant says it supplied as a vendor — concluded. The 2026 Bank of England lab is a simulated RT2.
Pilot
On 26 September 2025 UK Finance selected Quant to provide the technology for live tokenised sterling deposits with Barclays, HSBC, Lloyds Banking Group, NatWest, Nationwide and Santander. EY and Linklaters support. Overledger and PayScript are named as the foundation. This is commercial-bank money, building on the 2024 RLN phase — not a Bank of England CBDC, and not a Quant-issued token.
City
London is three programmes sharing a postcode. Quant Network is the operating company and the technology partner UK Finance selected, on 26 September 2025, to provide Overledger and PayScript for live tokenised-sterling-deposit (GBTD) transactions with Barclays, HSBC, Lloyds Banking Group, NatWest, Nationwide and Santander, supported by EY and Linklaters. That is commercial-bank money, not a Bank of England CBDC. Separately, in February 2026 Quant was selected for the Bank of England Synchronisation Lab — a simulated RT2 environment; Quant’s own note says this is not endorsement or a live RTGS hook-up. A third thread is ISO and IETF work that happens to be staffed from here (Verdian, Hargreaves, Riley, Facer, Chiriac). Click through to each programme’s sources rather than collapsing them into one mandate.
Open the London dossier →Announced
On 25 March 2026 Murex and Quant announced a partnership to put tokenised deposits and digital-bond settlement inside MX.3, the cross-asset platform used by more than 300 institutions. Overledger is the interoperability layer so MX.3 can talk to multiple public and private ledgers without a parallel stack. That is a named vendor integration — announced, with a joint press note — not a central-bank programme and not a GBTD membership. Euro-area clearing adjacency (Frankfurt, Zurich) is corridor geography around this pin.
Sources & further research
Concluded lab · 2023
Directed by the BIS Innovation Hub London Centre with the Bank of England. Retail-CBDC API prototypes. Quant’s 16 June 2023 note says the company was on the vendor team with UST: Overledger for infrastructure, smart contracts and interoperability of central-bank ledgers; UST for the frontend API layer. The BIS page is explicit: purely experimental, not BoE policy, design or launch. A past credit, not a standing Quant office in Basel.
Lab
February 2026. Quant selected to experiment with synchronised multi-bank treasury rebalancing in a simulated RT2 environment. Quant’s own note: not endorsement, not policy, not a live RTGS connection, not a CBDC.
Sources & further research
Announced
February 2025. Oracle’s own blog names Overledger as the orchestration layer for cross-ledger, two-phase workflows on a Hyperledger Fabric platform. New York is the markets pin; the stack is Linux Foundation software underneath, Quant gateway across.
Foundation
HTTP 402, revived so machines can pay machines. Coinbase contributed the protocol; the Linux Foundation hosts the foundation (intent April 2026, operational July 2026). Quant is listed among general members and says Fusion Layer 2.5 is x402-ready, with the settlement thesis in tokenised bank money.
Landscape
The BIS is in Basel. Project Agora, ‘singleness of money’ speeches, and wholesale CBDC research live in that building’s bibliography. Quant staff (Chiriac’s people page) have described work on BIS Innovation Hub / Bank of England Project Rosalind — a concluded CBDC API experiment run from London, not a standing Quant office in Basel. Oracle’s OBP DA blog quotes the BIS singleness-of-money line as the problem Overledger is hired to help with. Geography plus citations; not a secret mandate. If a named Quant–BIS programme is announced, it will be added with a URL.
Euro-area banking and clearing adjacency. Murex is the named Overledger partner in Paris; Frankfurt and Zurich are corridor nodes, not claimed Quant campuses.
APAC Overledger coverage and banking counterparties. A live corridor, not a claimed BIS programme.
Sources & further research
New York is where US capital-markets counterparties, Oracle’s digital-asset platform conversation, and Quant’s board-level US expansion (Guy Dietrich’s 2019 Rockefeller-era appointment) sit. Oracle’s February 2025 Blockchain Platform Digital Assets Edition blog names Overledger as the orchestration layer for unified-ledger workflows on Hyperledger Fabric. Do not read a digital-dollar CBDC into a gateway deployment; see the CBDC chapter for the liability test.
Sources & further research
Official sector and vendors — graded separately
Did you know
Programmes
Did you know GBTD sits on a 2024 RLN rehearsal?
UK Finance’s 2024 Regulated Liability Network phase was the dress rehearsal. In September 2025 the same industry group selected Quant for live tokenised-sterling-deposit transactions running into mid-2026. Same problem — singleness of commercial-bank money across institutions — now with Overledger and PayScript named in the stack.
UK Finance announcement →Programmes
Did you know the Bank of England lab is not a live RTGS hook-up?
In February 2026 Quant was selected for the BoE Synchronisation Lab: a simulated RT2 environment for atomic multi-bank treasury bundles. Quant’s own press note says this is not endorsement, not policy, not a live deployment. The interesting question is whether synchronisation can sit beside RTGS without replacing it — gateway thinking, again.
Lab note →Programmes
Did you know Quant was on the vendor team for Project Rosalind?
In 2023 the BIS Innovation Hub London Centre and the Bank of England tested APIs for a retail CBDC. Quant’s own note says it supplied Overledger infrastructure with UST on the frontend. The BIS page is explicit: experiment, not policy, not a launch. A past credit — not a standing Quant office in Basel, and not GBTD.
BIS Rosalind page →Programmes
Did you know Oracle’s own blog names Overledger?
February 2025, Oracle Blockchain Platform Digital Assets Edition. Hyperledger Fabric underneath; Oracle’s post names Quant Overledger as the orchestration layer for cross-ledger, two-phase workflows — the ‘singleness of money’ problem the BIS talks about. Announced vendor work, not a Quant office in Austin.
Oracle’s blog note →