Method and system of NFT validation in a broker marketplace

Patent metadata

Field	Value
Publication number	US-12340366-B2
Application number	US-202217659758-A
Country	US
Kind code	B2
Filing date	Apr 19, 2022
Priority date	Apr 19, 2022
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

Techniques for authenticating a digital asset represented by an NFT that is stored in a blockchain are disclosed. An NFT that has been minted for an asset is identified. The NFT was minted by generating metadata for the asset and by generating an original hash of the asset. The NFT is stored in a blockchain, and the metadata is stored in a centralized repository. The original hash is stored in either the repository or the blockchain. A potential transfer of the NFT is triggered. Triggering the potential transfer includes downloading, from the centralized repository, a local version of the asset. A local hash of the local version of the asset is generated. The local hash is compared against the original hash. If the two hashes are the same, then the transfer is permitted; otherwise, the transfer is not permitted.

First claim

What is claimed is:

1. A method for authenticating a digital asset represented by a non-fungible token (NFT) that is stored in a blockchain, said method comprising:
identifying an NFT that has been minted for an asset, wherein the NFT includes a smart contract for the asset and an original hash of the asset, wherein the NFT is associated with metadata for the asset, wherein the NFT is stored in a decentralized blockchain, and the metadata is stored in a centralized repository;
triggering a potential transfer of the NFT from a first owner to a second owner based on terms outlined in the smart contract, wherein triggering the potential transfer of the NFT from the first owner to the second owner includes:
downloading, from the centralized repository, a local version of the asset;
generating a local hash of the local version of the asset, wherein the local hash is generated using a same hashing process that was used to generate the original hash of the asset;
triggering a comparison between the local hash and the original hash;
in response to determining that the local hash matches the original hash, facilitating transfer of the NFT from the first owner to the second owner; and
in response to determining that the local hash does not match the original hash, facilitating termination of the potential transfer of the NFT;

receiving feedback that is associated with the potential transfer of the NFT from the first owner to the second owner;
ranking a reputation of the first owner, a reputation of the second owner, and/or how the transfer was performed based on the feedback; and
storing the feedback and rankings in the centralized repository and providing access to the feedback and rankings to subsequent potential owners.

2. The method of claim 1 , further comprising including a quality ranking of the asset in the feedback.

3. The method of claim 1 , wherein the feedback is provided by a third party.

4. The method of claim 1 , wherein the asset includes at least one of: text data, image data, video data, or audio data.

5. The method of claim 4 , wherein the asset is the text data, and wherein the text data is research data generated by a research institution.

6. The method of claim 1 , wherein the NFT is minted based on a set of predefined rules.

7. The method of claim 6 , wherein the predefined rules include a rule stipulating that the NFT is to be minted in response to a particular version of the asset.

8. The method of claim 6 , wherein the predefined rules include a rule stipulating that the NFT is to be minted in response to an identified event associated with the asset.

9. The method of claim 8 , wherein the event is one or more of: generating a final saved version of the asset; generating an approved version of the asset; or authorizing release of the asset by an entity having a particular role.

10. The method of claim 1 , wherein the feedback includes feedback provided by a third-party entity, and wherein the feedback provided by the third-party entity operates as an added layer of authentication for the asset.

11. A method for authenticating a digital asset represented by a non-fungible token (NFT) that is stored in a blockchain, said method comprising:
identifying an NFT that has been minted for an asset, wherein the NFT includes a smart contract for the asset and a pointer pointing to an original hash of the asset, is associated with the original hash of the asset, and is associated with metadata for the asset, wherein the NFT is stored in a decentralized blockchain, and the original hash and the metadata are stored in a centralized repository, and wherein the pointer in the blockchain points to the original hash that is stored in the centralized repository;
triggering a potential transfer of the NFT from a first owner to a second owner based on terms outlined in the smart contract, wherein the potential transfer of the NFT from the first owner to the second owner includes:
downloading, from the centralized repository, a local version of the asset;
generating a local hash of the local version of the asset, wherein the local hash is generated using a same hashing process that was used to generate the original hash of the asset;
triggering a comparison between the local hash and the original hash;
in response to determining that the local hash matches the original hash, facilitating transfer of the NFT from the first owner to the second owner; and
in response to determining that the local hash does not match the original hash, facilitating termination of the potential transfer of the NFT; and

receiving feedback that is associated with the potential transfer of the NFT from the first owner to the second owner; and
maintaining an audit broker record to detect patterns of data hash failure to determine fraud, wherein the audit broker record includes information detailing whether the local hash matches the original hash, and wherein the audit broker record, including the information detailing whether the local hash matches the original hash, is available for the second owner to review as part of the potential transfer of the NFT.

12. The method of claim 11 , further comprising receiving the feedback from one or more of the first owner or the second owner.

13. The method of claim 11 , wherein the NFT further includes a universal resource locator (URL) pointing to the metadata stored in the centralized repository, and wherein the URL is immutable.

14. The method of claim 11 , wherein the NFT is minted based on a set of predefined rules, and wherein the predefined rules include one or more of the following:
a rule stipulating that the NFT for the asset is minted when the asset is registered using a particular type of registration; or
a rule stipulating that the NFT for the asset is minted when the asset is registered by a specific entity; or
a rule stipulating that the NFT for the asset is minted when the asset is stored in a specific storage location; or
a rule stipulating that the NFT for the asset is minted when a filename for the asset is marked in a particular manner; or
a rule stipulating that the NFT for the asset is minted at a particular time of day; or
a rule stipulating that the NFT for the asset is minted when a state of the asset is a particular state.

15. A method for authenticating a digital asset represented by a non-fungible token (NFT) that is stored in a blockchain, said method comprising:
identifying an NFT that has been minted for an asset, wherein the NFT includes a smart contract for the asset, wherein the NFT is associated with an original hash of the asset, and metadata for the asset, wherein the NFT is stored in a decentralized blockchain, and the metadata is stored in a centralized repository, and wherein the original hash is stored in either the centralized repository or the decentralized blockchain;
triggering a potential transfer of the NFT from a first owner to a second owner based on terms outlined in the smart contract, wherein the potential transfer of the NFT from the first owner to the second owner includes:
downloading, from the centralized repository, a local version of the asset;
generating a local hash of the local version of the asset, wherein the local hash is generated using a same hashing process that was used to generate the original hash of the asset;
triggering a comparison between the local hash and the original hash;
in response to determining that the local hash matches the original hash, facilitating transfer of the NFT from the first owner to the second owner; and
in response to determining that the local hash does not match the original

Assignees

• Dell Products Lp

Inventors

• Reineke Nicole
• Hubbard Joanne
• Yehuda Hanna
• Sevajian Alan
• Arneson Debra
• Schulze Corinne
• Barrett Robert Alan

Classifications

• G06Q40/04 Primary

  Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange · CPC title

• G06Q20/3827

  Use of message hashing · CPC title

• G06Q2220/00

  Business processing using cryptography · CPC title

• H04L9/50

  using hash chains, e.g. blockchains or hash trees · CPC title

• G06Q30/06

  Buying, selling or leasing transactions · CPC title