GEA - Grading 11 App

GEA Grading 11

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GEA App is the official authentication tool of Grading Eleven Authentication (GEA).
Designed for collectors, it provides fast and secure verification for every GEA-graded card — anytime, anywhere.

1. Instant NFC Authentication
Every GEA-graded card is embedded with an NFC chip containing an unclonable cryptographic authenticator.

Simply tap your phone on the slab to instantly:
• Verify authenticity
• View grading details
• Confirm ownership and security status
No additional setup needed — just tap and check.

2. Certification Number Lookup
Prefer manual search?
You can also enter the certification number printed on every slab to quickly access the card’s official record.
This ensures flexible verification across all devices.

3. Activity History
GEA App automatically saves your recent authentication checks.
Visit the Activity page to revisit past records, manage your scan history, and keep track of your collection’s verification activity.

Why GEA App?
• Secure NFC verification
• Cryptographic authenticity protection
• Fast record access
• Designed for collectors
• Official tool for GEA-graded cards