System and method using identity non-fungible token for identity verification in metaverse and online services

The use of identity NFTs on a blockchain for identity verification in digital environments addresses fraud and privacy concerns by securely linking user identities and credentials to avatars, ensuring reliable and privacy-enhanced authentication.

WO2025241290A1PCT designated stage Publication Date: 2025-11-27HONG KONG APPLIED SCI & TECH RES INST
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Patent Information

Application Number
PCT/CN2024/106095
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-22
Filing Date
2024-07-18
Publication Date
2025-11-27

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Abstract

A system for identity authentication on blockchain using NFTs includes a user interface, an identity NFT minting module, and a verifiable credential issuer module. The user interface allows a user to link a blockchain wallet and a credential wallet to the user interface and to provide an online service ID and requests the user to create signatures using a blockchain wallet private key and a credential wallet signing key. The identity NFT minting module verifies the online service ID and verifies the two signatures using the blockchain wallet address and the DID. The identity NFT minting module mints an identity NFT on a blockchain network, preserving the online service ID, the blockchain wallet address, and the DID in the identity NFT as metadata. The verifiable credential issuer module issues a verifiable credential to the user and triggers the identity NFT minting module for adding credential metadata to the identity NFT.
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Citation Information

Patent Citations

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