JSCC, Mizuho and Nomura test onchain JGB collateral on Canton Network

Japan Securities Clearing Corporation (JSCC), Mizuho Financial Group, and Nomura Holdings launched a proof-of-concept to move and manage Japanese government bond (JGB) collateral on the Canton Network blockchain. Announced April 20, 2026, Digital Asset Holdings joined as a fourth participant, with the trial running through roughly late September 2026 under Japan’s Financial Services Agency (JFSA) Payment Innovation Project. The key test is whether onchain JGB collateral can be transferred and recorded while preserving legal validity under Japan’s book-entry transfer framework. The project also evaluates real-time collateral posting and substitution using a multi-institution account structure, aiming to shift settlement from business hours toward near 24/7 capability. Participants expect lower administrative costs and less manual processing for JGB collateral workflows, while improving coordination between traditional sovereign debt and digital-native asset holdings. JSCC CEO Isao Hasegawa leads the clearing-side effort, with Mizuho and Nomura leading participation and Digital Asset overseeing the technology. While regulators are watching closely—especially after US work like DTCC’s tokenized Treasury efforts on Canton—the initiative remains a PoC with no guaranteed commercialization timeline. For crypto traders, the near-term impact on token prices is likely limited, but it signals incremental momentum for regulated, tokenized-collateral rails.