Mitsubishi UFJ Financial Group said Thursday that four of its entities will run a proof-of-concept for settling Japanese government bond repo trades in real time on the Canton Network, targeting 24/7 atomic settlement in place of a process that currently takes one to three business days.
MUFG, MUFG Bank, Mitsubishi UFJ Morgan Stanley Securities, and Mitsubishi UFJ Trust and Banking will work with Canton developer Digital Asset and Japanese blockchain platform Progmat on the test. Notably, the proof-of-concept does not tokenize the JGBs themselves — the bonds stay inside Japan's existing book-entry transfer system, while a blockchain layer synchronizes updates alongside it, aiming for atomic delivery-versus-payment where the securities leg and the cash leg settle together in a single, indivisible step rather than on separate timelines. Switzerland's Secured Finance AG will supply a lending protocol intended to automate the full repo transaction lifecycle. The proof-of-concept runs under Japan's Financial Services Agency Payment Innovation Project, a sandbox program the regulator launched in February to let firms test blockchain settlement, stablecoins, and tokenization in a controlled environment. MUFG expects the test to conclude by the end of 2026, with a possible commercial rollout targeted for fiscal years 2027 through 2029.
The market this targets is substantial: JGB repo activity is estimated at roughly ¥250–270 trillion, and JGBs are widely used as collateral given their liquidity and credit quality. MUFG says real-time settlement could improve funding efficiency, expand settlement windows beyond current business hours, and reduce the capital institutions currently set aside to cover settlement-delay risk.
The MUFG test sits inside a wider industry working group which includes MUFG Bank, Mizuho Bank, Sumitomo Mitsui Banking Corporation, State Street Trust and Banking, SBI Securities, and Japan Exchange Group's Market Innovation & Research division, examining T+0 settlement, 24-hour availability, and cross-border access for the JGB repo market more broadly, with a report on its findings expected in October and tokenized JGB issuance pilots targeted for later in the year. Zenith, an infrastructure provider connected to Canton, joined the working group in June.
MUFG's test adds a major Japanese bank to a Canton client list Blockhead has watched expand steadily through 2026. Digital Asset, the network's developer, closed a $355 million funding round led by a16z crypto in June at a roughly $2 billion valuation, with participants including HSBC, BNP Paribas, Citadel Securities, and the Abu Dhabi Investment Authority — a level of institutional consensus the industry has rarely seen around a single blockchain project. That momentum builds directly on JPMorgan's own precedent: Kinexys, JPMorgan's blockchain network, has supported intraday US Treasury-bond repos for several years, and MUFG's language echoes that model almost exactly, betting that JGBs' liquidity and credit quality make them just as suited to onchain settlement as US Treasuries have proven to be.
Most institutional blockchain pilots Blockhead covers focus on tokenizing the asset itself — a bond, a fund share, a deposit. MUFG's approach is narrower and, in some ways, a harder sell: it leaves the JGB exactly where it already lives and only changes how the settlement instruction moves. That's a smaller technical leap than full tokenization, but it's also a more direct test of whether blockchain infrastructure can improve plumbing that institutions already trust, without asking them to change what the underlying asset legally is.
