The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Jan. 11, 2023
The Toronto-dominion Bank, Toronto, CA;
David Samuel Tax, Toronto, CA;
Milos Dunjic, Oakville, CA;
Anthony Haituyen Nguyen, Toronto, CA;
Dean Constantin Nicholas Tseretopoulos, Toronto, CA;
Edwin Van Damme, Etobicoke, CA;
The Toronto-Dominion Bank, Toronto, CA;
Abstract
A processor-implemented method may be performed by a server. 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.