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Google Stamp

The Google Stamp verifies that you own a Google account through a standard OAuth flow.

Quick Facts

DetailValue
CostFree
Time~1 minute
DeduplicationLIFO (Last In, First Out)

Requirements

  • A Google account

Step-by-Step Verification

  1. Navigate to the Passport App and connect your wallet.
  2. Select the Google Stamp.
  3. Click the verification button to initiate the Google OAuth flow.
  4. Log in to your Google account and authorize the Passport App.
  5. The stamp will be added to your Passport.

Deduplication

The Google Stamp uses LIFO (Last In, First Out) deduplication:

  • Only one Passport can hold the Google Stamp per Google account.
  • If you verify the stamp on a new Passport, it will be automatically removed from any previously linked Passport.

Troubleshooting

  • OAuth failed — Try clearing your browser cookies or using an incognito window.
  • Wrong account — Make sure you are signing in with the intended Google account. If you have multiple Google accounts, select the correct one during the OAuth flow.
  • Stamp removed from old Passport — This is expected behavior due to LIFO deduplication. Each Google account can only be linked to one Passport at a time.
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