Step 1. Download AsMatch (Available for both IOS and Android!)
Step2. Create an account
Step 3. Click “Edit” on your profile page

Step 4. Click on the arrow to see more options

Step 5. Click on zkKYC

Step 6. Input your Proof Key for your POMP NFTs or scan the QR code
-You can find your proof key here

You can also read the tutorial made by AsMatch:
https://mantanetwork.notion.site/How-to-Prove-your-Crypto-NFT-Assets-a7cb0b04da724b9b8ae449f7b986f7da