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Mizuho, Nomura and Partners Test Digital JGB Collateral on Canton Network

Mizuho, Nomura and Partners Test Digital JGB Collateral on Canton Network

According to Japan Securities Clearing Corporation, the group has started testing whether Japanese government bonds can operate as digital collateral on blockchain-linked market infrastructure.

Fact Check
The claim is strongly supported by the official JPX/JSCC source "News Release," which explicitly says Mizuho Financial Group, Nomura Holdings, Japan Securities Clearing Corporation, and Digital Asset launched a proof-of-concept trial using the Canton Network for digital collateral management of Japanese government bonds. It further states the project will test real-time 24/7 and cross-border collateral use cases. CoinPost and crypto.news independently report the same facts and align with the official release. One nuance: the official source names Digital Asset as the fourth participant; the claim's phrase "and Partners" is vague, but the core statement that Mizuho, Nomura and associated parties are testing digital JGB collateral on Canton Network is supported.
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Summary

Japan Securities Clearing Corporation, part of Japan Exchange Group, has begun testing whether Japanese government bonds can function as digital collateral on blockchain infrastructure. The effort involves JSCC and Mizuho Financial Group and aligns with the existing pilot using Canton Network to connect blockchain technology with current market systems for near real-time collateral operations. The initiative builds on earlier work around Japanese government bond rights transfers, ledger updates and operational testing under Japan’s current legal framework, extending the focus to whether government bonds can be mobilized as digital collateral within clearing infrastructure.

Terms & Concepts
  • Canton Network: A privacy-focused blockchain network designed for interoperable institutional financial applications.
  • Digital collateral: Assets represented and managed through digital systems for use in collateral transfers, pledging and settlement processes.
  • Japanese government bonds: Debt securities issued by Japan’s government that are widely used in financial markets as high-quality collateral.