# 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

<figure><img src="https://2591223895-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0x70K9i86BsAzDYDnzq2%2Fuploads%2FgNyOLZ7ZRMb0JV4EATCO%2Fimage.png?alt=media&#x26;token=e415d7c1-eade-41fa-a392-642f50e86a87" alt=""><figcaption></figcaption></figure>

#### 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

<figure><img src="https://2591223895-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0x70K9i86BsAzDYDnzq2%2Fuploads%2FxKyqoBsEs7SeR6EernD1%2Fimage.png?alt=media&#x26;token=0c4bf328-c8c9-44cb-b762-6f96b5fecbd2" alt=""><figcaption></figcaption></figure>

**Instructions:**

* Option 1: Install **TransGate** from the official Google Chrome Web Store.\
  \&#xNAN;**⚠️ 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.

<figure><img src="https://2591223895-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0x70K9i86BsAzDYDnzq2%2Fuploads%2F7MHY4Y7ViV8VjTODH6Gu%2Fimage.png?alt=media&#x26;token=0b1ec7ae-e4df-40ee-958a-0e1a481bac23" alt=""><figcaption></figcaption></figure>

### 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](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.<br>

***

## Verified Platforms, Data, & Rewards

Full list of supported verifications and reward mappings:

<figure><img src="https://2591223895-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0x70K9i86BsAzDYDnzq2%2Fuploads%2FoVFdTJlf2rRHolDezTfe%2Fimage.png?alt=media&#x26;token=68d747f6-ffb7-40f3-a929-86265f6ff2a1" alt=""><figcaption></figcaption></figure>

## Mint to Earn Rewards

### **Rewards include:**

* PolyFlow Points
* Roam eSIM mobile data
* UMY discount vouchers<br>

1. **Roam — a partner providing global eSIM services:**\
   Roam eSIM redemption available directly\
   Download the Roam app and activate instantly

<figure><img src="https://2591223895-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0x70K9i86BsAzDYDnzq2%2Fuploads%2F2dUX92KWjCFQh1nL7avI%2Fimage.png?alt=media&#x26;token=180079ac-c0e0-41e5-a242-569ba0b20606" alt=""><figcaption></figcaption></figure>

<div data-full-width="true"><figure><img src="https://2591223895-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0x70K9i86BsAzDYDnzq2%2Fuploads%2F7ITH75nrzy1x7HdJGqkT%2Fimage.png?alt=media&#x26;token=ebe67a87-aedd-4dd5-ab43-c0df61191341" alt="" width="315"><figcaption></figcaption></figure></div>

2. **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:**

1. 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.
2. UMY Reward Validity: UMY code vouchers must be redeemed by November 21.