The chapter has stayed close to the legal frame for four parts. Part 5 grounds it in the specific production systems that institutional readers will be evaluating in 2026. Each of the four examples sits at a different point on the finality map, and together they cover the spectrum from a fully designated wholesale rail to a regulator-led tokenised pilot to a multi-jurisdictional settlement design that is still being negotiated.
Where it appears in production
Fedwire's finality treatment is the textbook US case. Transfers achieve finality at the moment of credit to the receiving bank's account, under Federal Reserve Regulation J and Uniform Commercial Code (UCC) Article 4A, with no zero hour exposure (Federal Reserve Regulation J). JPMorgan's Kinexys Digital Payments runs tokenised deposits on a permissioned chain operated by JPMorgan, with the wholesale settlement layer continuing to run on Fedwire. The tokenised deposit transfers among Kinexys participants are governed contractually by the Kinexys rulebook. The interaction between the contractual finality of the tokenised deposit layer and the Regulation J finality of the wholesale settlement is part of the system design, and it is one of the cleaner illustrations of the "tiered ledger" model covered in 03 bank money central bank money: the central bank money leg sits inside a designated finality envelope, and the tokenised commercial bank money leg sits on top of it under the operator's rulebook.
Euroclear and DTCC operate designated securities settlement systems under the EU Settlement Finality Directive (SFD), with Euroclear Bank under Belgian implementing law and Euroclear UK & International under the UK Settlement Finality Regulations (SFR) 1999, and under the US framework for the DTCC entities. Both have been working through how to extend their designation to tokenised securities settlement layers. The pattern is consistent: rather than launching a new system that has to seek fresh designation, the existing CSD adds a tokenised module within its existing legal envelope, so that the designation extends to the tokenised settlement step without a new authority approval. This is the dominant institutional pattern in 2026, and it is why most production tokenised securities settlement runs on permissioned consortium chains operated by, or tightly integrated with, an already-designated CSD.
Project Ensemble is the worked APAC example of a regulator-led design that takes finality seriously from the start. The Hong Kong Monetary Authority (HKMA) operates the wholesale central bank digital currency (CBDC) settlement layer for tokenised interbank flows (HKMA Project Ensemble). Tokenised deposits and tokenised assets settle against the wholesale CBDC. The designation regime under the Payment Systems and Stored Value Facilities Ordinance is the legal envelope, and the architecture has been explicit about which transfers fall inside the envelope and which do not. The Singapore Project Guardian work has run a parallel set of finality-aware pilots in tokenised funds and bonds under Monetary Authority of Singapore (MAS) supervision (MAS Project Guardian). Both projects have been deliberately designed so that the finality conversation is settled at the architectural level rather than retrofitted after launch.
Project Agorá at the BIS Innovation Hub is the most architecturally interesting case for this chapter, because it explicitly designs for finality across multiple central bank settlement layers (BIS Project Agorá). The project brings together seven central banks alongside private-sector commercial bank participants, and the design discussions have focused on how a cross-border settlement on a unified ledger can give finality consistent with each participating jurisdiction's national law. The hard problem is that a single transfer crosses several legal envelopes, and each envelope's finality regime has to recognise the transfer as legal-final at compatible moments. This is the hardest version of the problem and the one most likely to shape the next decade of cross-border tokenised settlement architecture.
A pattern across all four examples. The operationally interesting work, the chain integration, the smart-contract design, the message format harmonisation, lives on top of a legal layer that has to be solved separately and earlier. None of the four production systems started by building the chain and looking for designation afterwards. Each started with the legal envelope and built the chain to fit. This is the inversion that distinguishes institutional tokenised settlement from the consumer-crypto pattern of "ship the chain, hope the law catches up". The chain is the dependent variable. The finality regime is the independent one.
What to read next
Chapter V on permissioned blockchains, which is the architectural counterpart of this chapter and explains why deterministic Byzantine fault tolerant (BFT) consensus is the default for institutional tokenisation. Chapter VI on atomic delivery versus payment, which picks up the atomic settlement claim and works through where it does and does not deliver on the promise. The institution pages for the HKMA, the Bank of Japan, the FSA Japan, and the Bank of Korea are the most direct way to track which APAC jurisdictions are progressing with finality designation for tokenised systems, and the BIS, CPMI, and IOSCO pages are where the international standards are being set. The basel sco60 cryptoasset standard page is the prudential angle on the same question.