ZERO-KNOWLEDGE PROOF
Fragata Passport: proof without disclosure.
An ordinary passport says who you are. This one says only that you may enter. The cryptographic seal is checked at the border and the rest of the page stays blank.
DEMONSTRATION · PARTNER MARINA
Reserve a berth
Available to verified clients.
Continue with email
CHECKING THE SEAL…
No personal data was requested.
Verified Fragata member
Club berthing rate applied.
THE MARINA RECEIVED
- member: true
- range: met
- identity: not revealed
HOW IT WORKS
Verify once, prove forever.
Fragata verifies once
The asset is confirmed in our record, at the moment of the transaction or the mandate. Nothing is verified again afterwards.
The seal is issued
A cryptographic proof held on your device. It states one sentence and only one: this member qualifies.
The partner checks the seal
It receives a mathematical yes. It does not receive the property, the amount, the address, the tax ID or your name — unless you hand it over.
WHAT CROSSES OVER
- Active Fragata Clube member
- Property-asset range met
- Passport validity
WHAT NEVER LEAVES
- Your name, tax ID and documents
- Address, title number and value of the property
- History of searches and viewings
ON THE MEMBER’S DEVICE
Every share is your decision.
The app asks for Face ID approval for each new partner, shows exactly what crosses over and keeps a revocable record of where the passport was used.
FOR PARTNERS
A UHNW base you serve without collecting.
Install the Fragata sign-in and every registration that comes through it arrives already qualified. In exchange, the club asks for a real term for members — not a coupon.
Propose the benefit
The club committee assesses the offer and its exclusivity.
Install the button
Standard OAuth with proof verification. An afternoon of work.
Serve without storing
No sensitive database to keep, leak or justify under data-protection law.
// o parceiro recebe apenas a prova
const { valid, tier } = await fragata.verify(proof);
if (valid) grantClubRate();
// valid: true
// tier: "clube"
// identity: undefinedPRIVACY
What the seal guarantees.
Does Fragata see where I use the sign-in?
No. The proof is generated and presented on your device. The partner validates the signature against the club’s public key, without consulting us.
Can I revoke a partner’s access?
Yes, at any time, in the Club tab of the app. The revocation applies to future sign-ins and to the optional data you have revealed.
How does the partner know the proof is genuine?
The proof is signed by the club key and carries a validity period. Any change invalidates the signature, and suspended passports stop verifying at the turn of the period.
Can I reveal my name when I want?
Yes. Name and contact are optional fields at each sign-in, given by your decision and reversible at any time.

Install the Fragata login.
Install the Fragata sign-in and every registration that comes through it arrives already qualified. In exchange, the club asks for a real term for members — not a coupon.
The indicators presented are market data and do not represent any projection of loss ratio, approval rate or future performance of Garantia Fragata. Availability, coverage, limits and terms depend on the contracting modality and on the respective terms.

