etc...
Use Case
DID・VCとは
DID (Decentralized Identity：分散型ID)と VC (Verifiable Credential：検証可能な資格) は、W3C（WorldWideWeb Consortium）が策定した国際標準のデジタルID技術です。
従来の紙・PDF・データベース依存の証明とは異なり、「発行 → 保管 → 提示 → 検証」 のすべてを安全かつ自動化できる点が特徴です。
EU (eIDAS 2.0)、米国、ICAO、IATA、APAC各国などが同様の枠組みで制度・実装を進めており、世界共通の“信頼できるデジタル証明”の基盤として採用が進んでいます。
STEP 1
1. Issue and deliver
Instant issuance from a wide variety of templates, including sightseeing passes, visitor certificates, admission passes, employee IDs, student IDs, qualification certificates, coupons, accommodation certificates, questionnaire response certificates, and more.
The issuer can be a municipality or a company.
Eliminate the hassle of paper and PDFs
Users only receive it in the wallet
STEP 2
② Present and verify VC
Users scan a QR code and present the VC in 1 second. At tourist attractions, event venues, accommodations, schools, offices, and more, the validity of the presented VC can be checked immediately anywhere.
Identity verification
Validation
Minimal data disclosure
STEP 3
③ Analyze and turn it into value
Visitor data × browsing data × usage evidence, automatically. By placing VC issuance and verification logs side by side, you can get the “data you couldn’t capture on paper.”
The issuer can be a municipality or a company.
Eliminate the hassle of paper and PDFs
Users only receive it in the wallet
We will tell you on the spot how much can be implemented in three weeks.
We will propose the best fit for your operations, showing which VC use cases—tourist passes, visitor certificates, staff IDs, student IDs, qualification certificates, lodging certificates, coupon issuance, and more—can be made to work, and how easily.
You can consult with us for free on everything from organizing PoC requirements to technical evaluation and cost estimates.
Local governments, companies, schools, and more are all welcome, regardless of the implementation phase.
Frequently Asked Questions
Can it be introduced without technical knowledge?
Yes. We can set up everything here, including issuance, distribution, and verification.
What kinds of proof can be turned into a VC?
We have more than 10 template types, including admission passes, employee IDs, student IDs, qualification certificates, accommodation certificates, tourist passes, visit certificates, coupons, survey response certificates, and more.
Can it only be used if it integrates with existing systems?
First, the PoC can run on its own. If you’d like to integrate it with an existing system, we can also discuss API integration or additional development.
How does QR-based "1-second verification" work?
Using DID/VC digital signature technology, we automatically detect tampering and impersonation. You can verify validity just by scanning the QR code.
Can subsidies or budget be used?
We have examples of being selected for subsidies related to local government DX, tourism DX, and smart city initiatives. We support you from requirements definition onward.
Can we build a PoC in three weeks?
Yes. The issuance functions, verification functions, and wallet app are already in place, and if you use a template VC, you can get started right away with just the initial setup. Days 1–3: Requirements interview and template selection Days 4–10: Credential issuance setup and QR code operation check Days 11–21: On-site testing and user testing → Verification at a production-ready level is possible in as little as 3 weeks.
How can it be expanded after the PoC?
Production use is also possible with API integrations and SDKs.
Do I need a server?
No, it is not necessary. You can use the cloud environment provided by VESS (VESS Wallet/VESS Credentials) as is. No additional server setup or maintenance is required at all, but we can also set it up to match your company’s environment, so please feel free to contact us.
How much does it cost?
Starting from ¥400,000 for the smallest PoC. We’ll provide a proposal tailored to your requirements.
