The Credential Is Genuine — But Who Is Holding It? A Three-Way Partnership Aimed at the Structural Gap in DID/VC

The partnership and the division of roles

Digital Platformer, based in Chiyoda, Tokyo and led by chief executive Kazuaki Matsuda, announced on September 2 a partnership with Shachihata and AnchorZ to pilot and commercialise a next-generation identity-proofing service.

The roles are cleanly divided. Digital Platformer supplies the DID/VC platform aligned with international standards including W3C Verifiable Credentials, and takes responsibility for interoperability. AnchorZ develops the background authentication engine and provides the identity-confirmation technology. Shachihata handles service planning and business design, customer development, on-site implementation, and deployment support. Two technology providers, one commercialiser.

The first use case is a hands-free check-in for employees at commercial facilities. Digital employee badges and entry passes live on a smartphone, and by combining background authentication with Bluetooth Low Energy, the system confirms two things without the user taking out a device or card: that the person is who they claim to be, and that they hold valid entry rights. The partners will first verify interoperability and technical feasibility between the two platforms, then move to on-site trials at commercial facilities. Staffing, construction, education and membership services are named as later targets.

The problem DID/VC cannot solve on its own

What makes the announcement unusually candid is that it states the limitation of DID/VC outright: a credential being authentic and the person using it being its rightful holder are separate problems.

This is not implementation immaturity but a property of the architecture. Verifiable credentials use the issuer's signature to guarantee cryptographically that a credential was indeed issued by that issuer and has not been altered. Proof that the holder controls the corresponding private key can also be built in. But it stops there. What can be proven is possession of a key; whether the human operating that key right now is the rightful person does not follow from any amount of cryptography. Hand the device to someone else and the credential still verifies perfectly.

AnchorZ's background authentication attempts to fill that gap through continuous observation. It combines multiple biometric signals with behavioural signals such as the distance between the device and the user's eyes, checking continuously throughout use whether the same person is present. Processing is completed entirely on the device, with no biometric data sent to a server. The company holds more than 40 patents across Japan, the United States and China, and the algorithm has been accepted at the IEEE International Joint Conference on Biometrics.

The partnership therefore splits the work: authenticity as a cryptographic problem, holder identity as an observational one, each handled by different technology. The premise is that neither alone is usable in real operations.

Why a tokenized-deposit company is doing this

What is easily missed is what Digital Platformer actually is. The company describes its own business as decentralised identity services and tokenized-deposit issuance infrastructure. The pairing matters.

The firm is the technology provider behind Tochika, Japan's first deposit-backed stablecoin, issued by Hokkoku Bank, as well as the Tochitsuka digital regional currency and a regional currency and deposit-backed stablecoin deployment in Suzu City. In May 2024 it began a joint study with JPYC to allow its deposit-backed stablecoin to be used to purchase a funds-transfer-type stablecoin, and in April 2025 it filed a patent for a digital currency management system for bank deposit-backed stablecoins. On the identity side it operates the SHIKI decentralised identity platform, its extended version MySov, and the Ishikawa prefectural common ID.

The result is one operator holding the technical foundations for both the ledger of people and the ledger of money in the same region. This is not coincidence. Tokenized deposits and DID/VC rest on the same question: who is the subject behind this key. On the payments side that connects directly to identity verification duties under anti-money-laundering law; on the identity side, to the attribution of qualifications and permissions. Both hit the same wall — the inability to move beyond key possession. The entry point is unglamorous door access, but the problem being addressed is a precondition of payment infrastructure.

An April 2027 tailwind, and the harder part beyond it

Regulation provides a tailwind. Amended rules under Japan's Act on Prevention of Transfer of Criminal Proceeds take effect on April 1, 2027, abolishing in principle the method of submitting photographed images of identity documents and consolidating around chip-reading public key infrastructure using the My Number card. Comparable rules for mobile phone contracts arrive a year earlier, in April 2026. Faced with forged documents, the entry gate is being tightened.

But the amendment tightens only the entry gate. Verifying someone rigorously by chip at account opening says nothing about who is operating the app afterwards. Against fraud patterns in which victims are manipulated into operating their own accounts, a stricter gate is powerless. Continuous verification of holder identity is not something regulation requires, yet it remains a practical vacuum. That is where the three partners are aiming.

The hard part is interoperability. The release names interoperability as Digital Platformer's responsibility, but conformance to W3C VC standards still leaves credential schemas, revocation checking and verifier-side implementations diverging between operators. Background authentication, moreover, is currently AnchorZ's proprietary technology rather than a standardised specification. The chief executive's stated ambition to grow this into an interoperable identity-proofing foundation is, read the other way, an acknowledgement that today it is a closed combination. Starting in the confined domain of door access is a reasonable response to that constraint.

[Business Development Insights]

1. Digital identity proposals should describe credential authenticity and holder identity separately. Many proposals blend the two into a single claim of secure identity verification, and then cannot answer when a risk committee asks what happens if the device is handed to someone else. Using this partnership's structure as a template — authenticity secured cryptographically, holder identity through continuous observation — makes the discussion concrete. Conversely, a vendor proposal covering only one layer can be judged incomplete on that basis alone.
2. One operator holding both the ledger of people and the ledger of money is a repeatable pattern in regional finance. The Hokkoku Bank and Digital Platformer combination placed a deposit-backed stablecoin, a digital regional currency and a prefectural common ID on a single technical foundation. Securing all three within a region lets merchant acquisition and identity verification costs be shared, so businesses that fail individually can succeed bundled. For anyone pitching regional banks or municipalities, the ability to present that bundling — rather than identity or payments alone — is the decisive factor.
3. Demand ahead of April 2027 concentrates at the entry gate, but the revenue opportunity sits after it. Demand for chip-reading electronic identity verification vendors will spike over the next eighteen months in response to the amended rules. That is a deadline-driven, one-time replacement cycle, and it will compete on price. Continuous holder verification is not a regulatory requirement, so demand builds slowly — but precisely because it is unspecified, design freedom is greater, and once embedded in an operational process it is hard to displace. Anyone entering should decide explicitly whether to chase the deadline rush or position downstream of it.

[Sources]

Digital Platformer, "Digital Platformer begins partnership with Shachihata and AnchorZ on next-generation identity-proofing service" (September 2, 2026) https://prtimes.jp/main/html/rd/p/000000071.000059855.html Shachihata, press release on the same partnership https://prtimes.jp/main/html/rd/p/000000422.000005556.html AnchorZ, "DZ Security" https://www.anchorz.co.jp/dz/ AnchorZ, "DZ IAP" https://www.anchorz.co.jp/dz/dz3 Digital Platformer, "Japan's first deposit-backed stablecoin to be issued" https://digitalplatformer.co.jp/20240401001/ Digital Platformer, "Start of joint study with Hokkoku Bank and JPYC on linking deposit-type and funds-transfer-type stablecoins" https://digitalplatformer.co.jp/20240523001/ Digital Platformer, "Case studies" https://digitalplatformer.co.jp/case/ Digital Platformer, "Patent filed for digital currency management system for bank deposit-backed stablecoins" (April 7, 2025) https://prtimes.jp/main/html/rd/p/000000046.000059855.html TRUSTDOCK, "With the abolition of the Ho method, electronic identity verification enters the chip-reading era" https://biz.trustdock.io/column/ic-chip-ekyc TRUSTDOCK, "What changes under the amended Act on Prevention of Transfer of Criminal Proceeds" https://biz.trustdock.io/column/after202704-amlcft Cybertrust, "Chip-reading gains momentum under the amended anti-money-laundering rules" https://www.cybertrust.co.jp/blog/certificate-authority/business-process-digitalization/aptcp-reform.html