The Bank of Japan is rolling up its sleeves and getting hands-on with blockchain.
Governor Kazuo Ueda dropped the news in a fresh speech titled “The New Financial Ecosystem and the Role of Central Banks,” revealing that the Bank of Japan has kicked off a sandbox project to experiment with settling deposits using central bank money, but on a blockchain backbone.
Ueda made it clear these tests aren’t about flipping the switch on some massive new policy as they’re careful, technical trials run with help from outside experts.
The sandbox is zeroing in on two big questions. First, how do you connect this shiny new blockchain setup to the old-school systems everyone already relies on, especially BOJ-NET, Japan’s high-speed financial network?
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Second, what real-world use cases actually make sense? Think domestic interbank transfers and securities settlement, the kind of plumbing that keeps money moving behind the scenes every day.
Ueda didn’t stop there. He pointed out that blending artificial intelligence with blockchain could unlock next-level financial services, all powered by tamper-proof transaction and settlement data sitting on distributed systems.
The Bank of Japan chief warned about the flip side: poorly designed smart contracts could spell trouble. “If the design falls short,” he said, “it risks shaking the stability of financial markets and payment systems.”
That’s a governor’s way of saying, “Let’s not break anything while we’re experimenting.”
This move fits right into Japan’s bigger picture on digital assets. The Financial Services Agency spent 2025 gathering feedback on reclassifying some tokens under the Financial Instruments and Exchange Act, a shift that could bring tougher disclosure rules and market conduct standards to certain digital assets.
Meanwhile, the government has woven blockchain and tokenization straight into its “New Capitalism 2025” growth playbook, treating digital infrastructure as a core piece of modernizing the financial system.
Last October, JPYC rolled out Japan’s first yen-backed stablecoin under the updated Payment Services Act, which now officially treats stablecoins as electronic payment instruments.
Just this Monday, Sony Bank and JPYC inked a memorandum to explore real-time transfers so customers can buy those yen stablecoins straight from their bank accounts.
The Bank of Japan isn’t sitting on the sidelines anymore. By testing blockchain settlement in a controlled sandbox, they’re positioning themselves in tune with the future of money in Japan.
