Tag it. Prove it. Own it.
Zavv Network
Zero-proof authentication, verification and validation for the real world
A comprehensive suite of applications built for real-world trust. Prove age or identity without revealing personal data — powered by privacy-preserving verification infrastructure.
The Zavv Wallet
Your vault for everything.
Access, verification and safety — all in one app. Scan to get in, prove who you are without oversharing, and keep your assets locked away in a vault that works on your terms.
Your tickets and passes.
Prove yourself, not your life story.
Scan once. Zavv does the rest.
Sign in with Zavv.
Your assets, safely tucked away.
For users
A single wallet for getting in, proving yourself and protecting what you own.
For venues and platforms
Age and ID checks without storing sensitive data yourselves. Faster door flows, less risk.
For developers
Zavv Wallet plugs into your app with ZavvLinks and APIs. Sign-in, age checks and access control from one integration.
Zavv Hub
The universal tagging and ownership layer.
Link people, products, and documents to verifiable digital tags on the ledger. Tamper-proof ownership and provenance without exposing private data.
Tag types
For people and identity anchors
For physical assets and devices
For records and certifications
Verified Identity
Create your blockchain identity (uTag) for trusted verification across the ecosystem.
Asset Protection
Register your valuable items (pTags) with on-chain theft prevention and provenance tracking.
Document Registry
Anchor records and certifications (dTags) to tamper-proof blockchain references.
For owners
Protect your valuables with blockchain-backed ownership proofs and theft prevention.
For businesses
Issue verifiable tags for products, warranties, and authenticity without exposing customer data.
For developers
Integrate tagging and ownership verification into your apps with Zavv APIs and webhooks.
Simple Process
How Zavv Works
Zavv links tamper-proof tags with unique digital identities stored on the blockchain. From registration to transfer, every step is secured by zero-proof technology.
Tag your asset
Apply a tamper-proof tag to your valuable item, document, or identity anchor. Each tag creates verifiable ownership and provenance from day one.
Register securely
Use Zavv Wallet to sign and authenticate your registration. Your private keys never leave your device.
Anchor on blockchain
Your tag is anchored to the Xahau blockchain, creating an immutable record of ownership and authenticity.
Scan or link
Zavv Link powers QR codes and deep links that launch the right workflow in Zavv Wallet. Scan to open verification, access, or provenance views instantly. Coming very soon, this will also enable Sign in with Zavv for websites.
Transfer with confidence
Pass ownership along with the item, keeping the full chain of custody intact. Every transfer is recorded and verifiable.
Privacy by Design
Every layer of Zavv is built with privacy at its core. Prove age or identity without revealing personal data. Your information stays yours — you control exactly what is shared and with whom. Coming very soon, Zavv Wallet will keep access cards for each website or venue, showing what was requested, what you shared, and when.
The Technology
Zero-Proof at the Core
Zavv provides zero-proof authentication, verification, and validation as a unified access layer - a privacy-first approach to proving things in the real world, secured by blockchain technology.
Zero-Proof
Prove what you need, without revealing what you don't
Zero-proof technology lets you make cryptographic assertions about your identity, credentials, or assets - without exposing the underlying data. The verifier learns only the answer, never the details.
Authentication
Proving an authorised actor is present.
Confirms that a user, wallet, or system is legitimately initiating an action at this moment.
- • Secure session and wallet authentication
- • Passkey-style and signature-based login
- • No identity data exposure
Layer: Zavv Wallet
Verification
Proving a specific claim is true.
Confirms that a user, asset, or credential meets a defined requirement without revealing underlying data.
- • Age and identity status checks
- • Ownership and eligibility proofs
- • Binary yes or no outcomes only
Layer: Zavv Verify
Validation
Proving an action or asset is allowed.
Ensures transactions, passes, and digital assets comply with rules before they are accepted or executed.
- • Transaction and access rule enforcement
- • Digital twin and issuer validation
- • Compliance and lifecycle checks
Layer: Zavv Pass · Zavv Hub
Authenticate the actor. Verify the claim. Validate the outcome.
Authenticate → Prove → Verify → Validate → Enforce
Each Zavv component plays a distinct role in the zero-proof trust flow.
Privacy That Actually Works
Traditional verification forces you to overshare. Zavv flips the model — prove only what's required, nothing else.
Your data stays yours
Personal data is never written to public ledgers. Only cryptographic proofs are shared, and only when you choose.
Prove without showing
Prove you're over 18 without revealing your date of birth. Prove ownership or access without exposing your wallet or identity.
Selective disclosure
Share exactly what's needed for each interaction. Different contexts require different proofs — you stay in control.
Secured by the Xahau blockchain — designed for real-world performance and sustainability.
Our Suite
Products
Enterprise-grade verification infrastructure for identity, access, and asset protection — built to work together or independently.
Flagship
Zavv Wallet
Your vault for everything.
Zavv Wallet is the user app that manages proofs, access and verified ownership in one place. Scan to get in, prove who you are without oversharing, and keep your assets locked away in a vault that works on your terms.
In development: Sign in with Zavv and Access Cards.
Zavv Hub
The universal tagging and ownership layer.
Zavv Hub links people, products, and documents to verifiable digital tags on the ledger. It enables tamper-proof ownership and provenance without exposing private data.
Capabilities
Zavv ID
Zero-proof age and identity verification
Prove age, identity, or eligibility without oversharing personal information. Privacy-first checks for venues, platforms, and services.
Zavv Pass
The universal access layer
Replaces traditional tickets and access codes with zero-proof access control for events, memberships, and venues.
Zavv Protocol
The trust layer beneath it all
The cryptographic foundation for authentication, verification, and validation across the Zavv ecosystem.
Zavv Link
QR routing and deep links
Powers QR codes and deep links that launch the right workflow in Zavv Wallet.
Applications
Real-World Use Cases
Use cases show what Zavv enables in real-world scenarios. Choose a scenario to see the workflow and the products involved.
ENTERPRISE SOLUTIONS
For Businesses
Use Zavv to verify eligibility, identity, ownership, and access without collecting more data than you need.
Verify age and identity in a privacy-aware way
Manage access for events, venues, and rentals
Protect high-value assets with product tagging
Reduce fraud and disputes with verifiable logs
You do not need to be a developer
Zavv Connect is a simple dashboard with all the tools you need to manage your business operations. For deeper integrations and custom implementations, Zavv Dev provides the development platform and APIs your technical team can use.
For Developers
Build privacy-preserving identity verification, zero-proof access control, and tamper-proof ownership into your apps — without handling sensitive data.
Fast integration
Integrate Zavv verification and access flows in minutes
Enterprise-grade
Use APIs and SDKs built for enterprise-grade verification infrastructure
No custody burden
Avoid custody, personal data storage, or regulatory overhead
Compliant by default
Build on a network designed for compliance by default
Frequently Asked Questions
Common questions about Zavv and zero-proof technology.
About Zavv Network
Zavv is building the infrastructure for trust in a digital-first world — where people can prove what matters without giving up their privacy.
Zavv Wallet
User-controlled authentication
Zavv ID
Zero-proof identity credentials
Zavv Pass
Access and permissions
Zavv Protocol
Cryptographic trust foundation
Zavv Connect
Business operations
Zavv Dev
Developers and integrators
Zavv is infrastructure, not a platform — designed to support real-world use at global scale.