Privacy-First Location Verification

Prove Your Location
Without Revealing It

Share only what's needed, keep everything else private.

Zero-Knowledge Proofs
User Consent
Cryptographic Security

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Midnight Network

Privacy by Design

Powerful features that put you in control of your data while enabling trustworthy verification

Zero-Knowledge Proofs
Prove you were at a location without revealing your exact coordinates. Cryptographic guarantees ensure data never leaves your device.
User-Controlled Consent
You decide what to share and when. Every request requires your explicit approval. Reject anytime without consequences.
Selective Disclosure
Share only what's needed, nothing more. Blood group? ✓ Address? ✗ Full control over your data footprint.
Anti-Replay Protection
Each proof is unique and one-time use. Session challenges prevent proof reuse and ensure fresh verification every time.
Geofence Verification
Prove you're within a specific area (e.g., event venue, city boundary) without GPS tracking or location history collection.
Cryptographic Security
Built on Midnight's Compact language with zk-SNARK circuits. Mathematical proof of truth without data exposure.

Want to see it in action?

Connect your Midnight wallet and try it yourself

Simple & Secure

How It Works

Four simple steps to privacy-preserving verification

01

Request Created

Provider sends a verification request with specific requirements (location, attributes, etc.)

02

User Consents

You review the request, see exactly what's being asked, and decide to approve or reject

03

Proof Generated

A zero-knowledge proof is created on your device. Your private data stays private

04

Verified Result

Provider receives a boolean answer (Yes/No) without seeing your actual data

Real-World Example

Blood donation drive: Hospital verifies donor presence + blood group✓ Result: Verified O+ donor, on-site✗ Not shared: Name, address, exact location, ID number

sessionValid: true

Real-World Applications

Use Cases

Privacy-preserving verification solves problems across industries

Healthcare
Blood Donation Drives
Verify donor presence and blood type without exposing personal identity or exact location.

Example:

Hospital confirms: O+ donor at event site

Corporate
Workplace Attendance
Prove you're at the office without continuous GPS tracking or privacy invasion.

Example:

Employee verified within campus boundary

Education
Educational Verification
Share specific degree or certification without revealing full academic records.

Example:

Degree: Computer Science ✓ GPA: Hidden

Finance
Financial Compliance
Prove income range or residency for KYC without submitting full documents.

Example:

Income >$50k ✓ ID documents: Not shared

Retail
Age-Restricted Access
Verify age for services (alcohol, gaming) without revealing birthdate or ID details.

Example:

Age >21 ✓ Birthdate: Private

Events
Event Check-In
Confirm attendance at conferences or venues while maintaining anonymity.

Example:

Attendee verified at TechConf 2024

Have a Different Use Case?

Our flexible ZK proof system can be adapted to many scenarios where verification is needed without data exposure.

Custom implementations available