Tcab ускоряет регистрацию и бронь с никнеймами и безопасной изоляцией данных ZKP Framework®
Регистрация по email и никнейму, SSO Apple/Google и изоляция документов личности по ZKP Framework® (депозит по типу escrow). Канонический хост брони: https://www.tcab.com/. 14 языков и ИИ-проверка права на вождение примерно для 200 стран.
TANAAKK Inc. (headquarters: Marunouchi, Chiyoda-ku, Tokyo; Representative Director and President: Masayoshi Aoki; hereinafter “TANAAKK”) and mobility operator TANAAKK EVGRID Inc. (headquarters: Marunouchi, Chiyoda-ku, Tokyo; Representative Director and President: Kensuke Suzuki; hereinafter “TANAAKK EVGRID”) announce that Tcab — car-share and car-rental in Fukuoka and Okinawa — consolidates booking, inventory, pricing, payment, and education content on the canonical site https://www.tcab.com/, so membership signup through reservation completion stays on one host.
Customers sign up at https://www.tcab.com/ and complete station selection, availability, insurance/options, driver checks, and payment via Tcab Explorer (Web / iOS / Android). In principle, signup only requires an email address and a nickname (handle). Birthday, gender, legal name, and address are not entered as free text. Identity is primarily assured through Apple / Google SSO, and field operations run on nicknames. Beyond a fully paperless flow, secure information isolation (escrow-like custody) under ZKP Framework® (Zero-Knowledge Policy Framework) lets rentals proceed without exposing identity documents or payment data to field staff.
Start booking or signup
- Hub: https://www.tcab.com/
- Booking: https://www.tcab.com/jp/ru/booking
- Tspot list: https://www.tcab.com/jp/ru/tspot/
- Drivers license guide: https://www.tcab.com/jp/ru/guides/drivers-license
- Pets: https://www.tcab.com/jp/ru/guides/pet
- llms.txt: https://www.tcab.com/llms.txt
- iOS: App Store
- Google Play: Google Play
When linking from media or partners, please use https://www.tcab.com/. The public canonical host is www.tcab.com.
Background
Regional travel often needs last-mile cars beyond trains, buses, and taxis. Counter rental still faces multilingual support, privacy compliance, hours, full-tank returns, and staffing. Collecting and showing unnecessary personal data also raises signup friction, cognitive load, and leak risk.
Tcab completes station choice through payment and identity checks online. Ordinary driving fuel is included in the base fare (no full-tank return required), with 24-hour pickup and return when inventory allows (see live booking screens and terms).
ZKP Framework® secure information isolation (escrow-like custody)
Tcab applies TANAAKK’s ZKP Framework® to signup, identity checks, and field ops. Zero-Knowledge Proof means proving a statement without revealing other information. ZKP Framework® extends that idea to rental operations: pass only proofs the business needs; do not hold, show, or use other personal data — maximizing signup, bookings, authentications, and inventory turns.
“Escrow-like custody” here is not classic three-party payment escrow. It means placing identity documents and payment data in isolated custody and releasing only rental-eligibility proofs to the field, separating “identity can be verified” from “staff see a person’s full profile.”
Nickname-centered use
- Users primarily enter email and nickname only
- No free-text birthday, gender, legal name, or address
- Identity mainly via Apple / Google SSO
- Delivery and recovery run on nicknames
- Contact via in-app chat and email; no store promo mail; email limited to necessary notices
How information is isolated
- Licenses / passports: received over encrypted channels, stored in an isolated data center; not shown to users or staff
- Payment data: processed by a PCI DSS–compliant payment service provider; generally not kept in our systems
- Mobile numbers: collected only when needed for payment/auth and isolated in appropriate third-party services
- Location: not collected in browser or mobile apps
- PII tracking: no PII-based web tracking/ads or identity-linked first-party cookie analytics
Field teams need rental eligibility proofs — Account authenticated / Driving eligibility verified / Payment authorized / Rental permitted = TRUE — not life-history attributes. Zero-knowledge is a growth algorithm that lowers signup friction and raises authentication completion and inventory turns.
Current service specs
- Name: Tcab
- App: Tcab Explorer (Web / iOS / Android); canonical https://www.tcab.com/
- Signup: email + nickname in principle; SSO supported
- Languages: 14 (ja, en, zh-hant, ko, es, fr, de, it, th, ms, hi, ar, ru, he)
- Areas: Fukuoka and Okinawa (Tspot)
- Fleet: popular hybrids only (compact / middle / long HV)
- Features: paperless, 24-hour pickup/return, fuel included for ordinary driving, 24-hour chat
- Driving eligibility: AI image recognition, OCR, authenticity checks for about 200 countries (guide)
- Family / pets: baby/child/junior seats and pet option (pet guide)
- Business: Tcab for Business
- Privacy design: ZKP Framework® / secure information isolation (escrow-like custody)
Booking flow
- Choose a station on the Tspot list
- Pick times, vehicle size, and options on booking
- Sign in (email + nickname / SSO), add payment, complete driver checks
Live inventory and prices on the booking screen are authoritative. Cancellation rules: cancel policy.
Tspot stations
- Tᵣspot: company lot — pickup without wait
- Tᵢspot: partner lot — delivery by 30 minutes before reservation time
- My Tᵢspot: meet at hotels and similar spots
Multilingual and AI-agent guidance
UI and guides are available in 14 languages. Conversational AI agents such as ChatGPT, Gemini, Claude, and Cursor can use llms.txt to guide booking (not an official product partnership). Inventory: availability matrix; completion stays in a customer session on www.tcab.com.
Companies
TANAAKK Inc.
Digital vertically integrated GAAS software platform provider for Tcab IP, software, algorithms, and databases (payments, eKYC, booking, inventory exclusivity, on-demand dispatch, ZKP Framework® design). ISO 9001 and ISO 27001. https://www.tanaakk.com/
TANAAKK EVGRID Inc.
Licensed motor vehicle rental operator with branches in Fukuoka and Okinawa. Invoice registration T3180301037480. https://rent.tanaakk.com/
Contact
TANAAKK Inc. / TANAAKK EVGRID Inc. PR: Mukai
E-mail: info@tanaakk.com
Tel: +81-3-6257-5600
Site: https://www.tcab.com/