User Guide
Mint to Earn Overview
Through the zkPass protocol, users can verify their off-chain platform data (e.g., social accounts, travel, business trips) to generate a zero-knowledge proof credential (zk-VC), which is then stored on-chain. This credential serves as a verifiable credit carrier, helping users build decentralized credit profiles. When verification is successful and meets the rules, users can earn token rewards — this is Mint to Earn.
Verification Flow & Rules
1. Data Verification & Credential Generation
Users choose the data source to be verified (e.g., Twitter follow @PolyFlow).
zkPass uses zkTLS technology to directly access HTTPS data sources and generate a zero-knowledge proof confirming data authenticity.
The credential only includes verification results (e.g., Twitter Follower Count) rather than raw data. Raw data never leaves the user’s device, ensuring full privacy protection.
2. On-Chain Storage & Reward Trigger
Credentials are stored on-chain via smart contracts as publicly verifiable records, while rewards are distributed automatically.
Uniqueness constraint: the same data source (e.g., Twitter Blue Badge) can only be uploaded once. Duplicate attempts are blocked.
3. Validity & Renewal Mechanism
On-chain credentials have a 2-year validity period ⏳. After expiration, re-verification is required to update credit records and maintain data accuracy.
If verification fails or conditions are not met, users can re-submit unlimited times until successful.
Using the zkPass Plugin
1. PC (Highly Recommended)
Recommended setup:
Browser: Latest Google Chrome or Brave
Instructions:
Option 1: Install TransGate from the official Google Chrome Web Store. ⚠️ Important: Do not install TransGate extensions from third-party sources. Always use official links to protect your accounts.
Grant permissions for pop-ups and cross-site cookies (disabling may block the verification process).
Log in to the data source normally. zkPass will run in-browser; do not close the tab during verification.
Note: Ad blockers or privacy extensions may interfere with wallet communication. If issues occur, temporarily disable them.
Important Note: Since mobile service may be unstable, we recommend using the Google extension on PC for the best experience!
2. 📱 iOS (iPhone)
App Clip access — no installation required. zkPass SDK fully supports Apple’s App Clip experience, delivering a seamless and secure verification process.
How to use:
Open the zkPass-integrated dApp link in Safari or scan the QR code.
An App Clip card will appear — tap Open to start verification.
Complete wallet connection and data verification inside the App Clip.
Return to the main dApp after finishing. No persistent app or background service is kept.
Requirements:
iOS 14.3 or above
Safari or Camera (for QR scanning)
App Clips enabled in Settings → App Clips
Note:
Wallet connection is handled in-session (MetaMask or WalletConnect).
All processes are sandboxed under Apple’s App Clip privacy rules.
3. 📱 Android Devices
Requirement: Install the official TransGate app from Google Play.
zkPass SDK runs via the native TransGate client to ensure secure proof generation.
✅ Recommended setup: Chrome Browser + MetaMask Mobile App
Open the dApp link in Chrome or other Chromium-based browsers.
When prompted, connect your wallet with MetaMask or WalletConnect.
Approve requests in MetaMask and return to the browser tab to complete verification.
⚠️ Note on MetaMask in-app browser (Android):
Due to system limitations, it does not fully support dApp redirects or advanced authentication.
For best stability, use a standalone browser.
Compatibility:
TransGate Android app supports Android 12+.
For incompatible devices, use Mise Browser + TransGate Extension:
Download Mise browser: https://mise.xyz
Open Chrome Web Store → Add TransGate extension in Mise
After installation, TransGate icon will appear in the top-right. Open any zkPass-supported page to begin.
Verified Platforms, Data, & Rewards
Full list of supported verifications and reward mappings:
Mint to Earn Rewards
Rewards include:
PolyFlow Points
Roam eSIM mobile data
UMY discount vouchers
Roam — a partner providing global eSIM services: Roam eSIM redemption available directly Download the Roam app and activate instantly
UMY Discount Voucher Redemption
UMY (Umy.com) is a leading global Web3 travel & lifestyle platform for crypto holders, digital nomads, and Web3 users.
By leveraging blockchain, UMY addresses traditional travel pain points like high costs, weak privacy, and complicated cross-border payments.
Mint to Earn users can redeem UMY vouchers for discounts on travel and services.
Tips:
The redemption validity period for Roam eSIM data vouchers is until September 10, 2026. Availability is limited to a total of 2,000GB, offered on a first-come, first-served basis. Once all vouchers are claimed, no further eSIM rewards will be issued.
UMY Reward Validity: UMY code vouchers must be redeemed by November 21.
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