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AUTHENTICATION USING NON-FUNGIBLE TOKEN AS PROOF OF ACCOUNT OWNERSHIP

Application US20260080396A1 Kind: A1 Mar 19, 2026

Assignee

The Toronto-Dominion Bank

Inventors

David Samuel TAX, Milos DUNJIC, Anthony Haituyen NGUYEN, Dean Constantin Nicholas TSERETOPOULOS, Edwin VAN DAMME

Abstract

A method may include: receiving an authentication request from a device, the authentication request including a unique identifier; authenticating the authentication request by: retrieving a non-fungible token (NFT) identifier and public key associated with the unique identifier; identifying, from a blockchain, a blockchain address that is an owner of an NFT represented by the NFT identifier; verifying that the blockchain address that is the owner of the NFT is associated with the public key that is associated with the unique identifier; and verifying that a private key stored in a secure area of the device is associated with the public key that is associated with the unique identifier; and after authenticating the authentication request, enabling an operation not available prior to authenticating the authentication request. The unique identifier may be obtained using image recognition or optical character recognition.

CPC Classifications

G06Q 20/3821 G06Q 20/351 G06Q 20/3829 G06Q 20/389 G06Q 20/4012

Filing Date

2025-11-26

Application No.

19402275