Token service for non-homogenized tokens

Abstract

The invention discloses a token processing server computer. The token processing server computer is used for processing tokens used for non-homogenized tokens. The token processing server computer includes a processor and a memory coupled to the processor. The memory stores machine executable instructions that, when executed by the processor, cause the processor to issue a token identification (ID) based on a non-homogenized token (NFT) and to authenticate ownership of the NFT using a payment track.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 367,647, filed on July 5, 2022, entitled “TOKENSERVICES FOR NON-FUNGIBLE TOKENS,” the disclosure of which is hereby incorporated by reference in its entirety. Technical Field

[0003] At least some aspects of the present disclosure relate to electronic token services for non-fungible tokens (NFTs). Background Art

[0004] An NFT is a unit of data stored on a digital ledger called a blockchain that can be sold and traded. NFTs can be associated with specific digital or physical assets (including, but not limited to, art, songs, and sports highlights, as well as licenses to use assets for specific purposes such as special events). There are at least three unresolved issues with NFTs. First, the process of redeeming NFT experiences is complicated. Second, it is difficult to identify fake NFTs. Third, it is challenging to establish ownership of NFTs.

[0005] NFTs have opened up new ways for brand storytelling and consumer interaction. However, the verification and access experiences associated with these NFTs have not kept pace. In the real world, the experience of redeeming NFTs is not smooth enough to attract digital natives. Verification of the authenticity or original authorship of NFTs can be a challenge due to fake NFTs, counterfeiting, unsolicited use of technology, time spent verifying NFTs on the blockchain, etc. In addition, the many steps required to prove ownership make it difficult to scale to a large audience, especially a savvy non-crypto audience or other use cases. For example, in order to view an NFT transaction using Etherscan.io, the following four steps must be followed, which takes at least a few minutes:

[0006] 1. Go to Etherscan.io and enter your wallet address in the search bar.

[0007] 2. Select the desired token you wish to view.

[0008] 3. Select the specific transaction hash (NFT) you would like to view.

[0009] 4. Verify the “Status” and “Tokens Transferred” of your NFT.

[0010] Currently, there is no effective way for people to authenticate their NFTs off-chain. Unless you know how to read the NFT smart contract details, there is no foolproof way to ensure the legitimacy of the NFT.

[0011] As the applications of NFTs begin to include collectibles, land records, collateral, etc., there is an urgent need for a method to verify the ownership and legitimacy of NFTs in a fast and secure manner. The present disclosure provides a solution that uses token service capabilities to bring together an ecosystem in which anyone can effectively establish the ownership and authenticity of tokens anywhere. Summary of the invention

[0012] In one aspect, the present disclosure describes a token processing server for processing non-fungible tokens, the token processing server comprising: a processor; and a memory coupled to the processor, the memory storing machine-executable instructions, which, when executed by the processor, cause the processor to: issue a token ID based on metadata of a non-fungible token (NFT); and authenticate ownership of the NFT using a payment track in response to an access request for the NFT.

[0013] On the other hand, the present disclosure describes an off-chain token processing server for performing off-chain authentication on non-fungible tokens generated on a blockchain, the off-chain token processing server comprising: a processor; and a memory coupled to the processor, the memory storing machine-executable instructions, which, when executed by the processor, cause the processor to: generate an off-chain token ID based on the identification characteristics of the NFT; store the off-chain token ID in a token library coupled to the processor, wherein the token library includes a mapping of the token ID to the NFT; and authenticate the NFT based on the off-chain token.

[0014] On the other hand, the present disclosure describes a method for processing non-fungible tokens (NFTs), the method comprising: receiving, by a token processing server, a request to generate an off-chain token ID for an NFT from an NFT market computer in response to purchasing the NFT; issuing, by the token processing server, the off-chain token ID based on metadata of the NFT; receiving, by the token processing server, an authentication request generated by an access point computer; authenticating, by the token processing server, ownership of the NFT based on information from a token repository associated with the token processing server; and providing, by the token processing server, an authentication decision to the access point computer based on the off-chain token ID.

[0015] For example, payment products include payment cards such as credit cards, debit cards, prepaid cards, digital wallets, etc., and electronic tokens associated with various entities involved in these transactions (e.g., users of the transaction token processing system) are managed (e.g., using transaction data obtained, for example, by a transaction processor during this processing). In one example, each token can be used to verify the ownership and legitimacy of the NFT. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The various features and advantages of the embodiments described herein may be understood from the following description made in conjunction with the following drawings:

[0017] Figure 1 is a diagram showing a financial services company providing a token processing server to act as a bridge between existing commerce and NFT commerce in accordance with at least one aspect of the present disclosure.

[0018] Figure 2 is a logical flow chart of a method for providing token services for NFTs according to at least one aspect of the present disclosure.

[0019] Figure 3 A system for issuing token IDs based on NFTs according to at least one aspect of the present disclosure.

[0020] Figure 4 A system for authenticating ownership of an NFT using a payment rail according to at least one aspect of the present disclosure.

[0021] Figure 5 is a logical flow chart of a method for issuing a token ID based on metadata of an NFT according to at least one aspect of the present disclosure.

[0022] Figure 6 is a logic flow diagram of a method for authenticating ownership of an NFT using a payment rail in accordance with at least one aspect of the present disclosure.

[0023] Figure 7 is a logic flow diagram of a method for delivering a seamless experience for authenticating NFTs that authorizes NFT owners to access special events in accordance with at least one aspect of the present disclosure.

[0024] Figure 8 A block diagram of a computer device according to at least one aspect of the present disclosure is shown.

[0025] Corresponding reference characters indicate corresponding parts throughout the several views.The exemplifications set forth herein illustrate various embodiments of the invention, in one form, and such exemplifications should not be construed as limiting the scope of the invention in any way. DETAILED DESCRIPTION

[0026] The applicant of the present application owns the following U.S. patents and patent application publications, the disclosures of each of which are incorporated herein by reference in their respective entireties:

[0027] U.S. Patent No. 10,891,610, filed May 31, 2012, entitled “LOCAL USAGE OF ELECTRONIC TOKENS IN A TRANSACTION PROCESSING SYSTEM”;

[0028] U.S. Patent No. 11,023,890, filed on June 5, 2015, entitled “IDENTIFICATION AND VERIFICATION FOR PROVISIONING MOBILE APPLICATION”;

[0029] U.S. Patent Application Publication No. 2016 / 0148197, filed on November 25, 2015, entitled “TOKENIZATION REQUEST VIA ACCESS DEVICE”; and

[0030] U.S. Patent No. 11,093,936, filed on May 8, 2018, and entitled “SYSTEMS AND METHODS FOR COMMUNICATING TOKEN ATTRIBUTES WITH A TOKENVAULT”

[0031] The above patents and patent application disclosures describe a network token system that provides a platform that can be utilized by various entities that use tokens to facilitate payment transactions (e.g., third-party wallet providers, merchants, acquirers, payment processors, etc.). The network token system can be adapted and configured to enable NFT owners to use tokens anywhere to prove ownership and legitimacy of their NFTs.

[0032] Before explaining various forms of token services for NFTs, it should be noted that the illustrative forms are not limited in application or use to the details of construction and arrangement of the parts shown in the drawings and description. The illustrative forms may be implemented or incorporated into other forms, variations and modifications, and may be practiced or performed in various ways. In addition, unless otherwise indicated, the terms and expressions used herein are selected for the purpose of describing the illustrative forms for the convenience of the reader and not for the purpose of limiting them.

[0033] Before discussing specific embodiments, aspects, or examples, some description of terms used herein is provided below.

[0034] A "digital wallet" may include an electronic device that allows a person to conduct e-commerce transactions. A digital wallet may be designed to simplify the purchase and payment process. A digital wallet may allow a user to load one or more payment cards onto the digital wallet in order to make payments without having to enter an account number or present a physical card.

[0035] A "digital wallet provider" may include an entity that issues a digital wallet to a user that enables the user to conduct financial transactions, such as an issuing bank or a third-party service provider. A digital wallet provider may provide a standalone user-facing software application that stores an account number or a representation of an account number (e.g., a payment token) on behalf of a cardholder (or other user) to facilitate payments at more than one unrelated merchant, perform face-to-face payments, or load financial value into a digital wallet. A digital wallet provider may enable a user to access their account via a personal computer, mobile device, or access device. In addition, a digital wallet provider may also provide one or more of the following functions: store multiple payment cards and other payment products on behalf of a user; store other information including billing addresses, shipping addresses, and transaction history; initiate transactions by one or more methods, such as providing a username and password, NFC, or a physical token; and may facilitate pass-through or two-step transactions.

[0036] As used herein, an “electronic wallet,” “digital wallet,” or “mobile wallet” may store user profile information, payment information (including tokens), bank account information, etc., and may be used for a variety of transactions, such as, but not limited to, e-commerce, social networking, money transfers / personal payments, mobile commerce, proximity payments, gaming, etc., for retail purchases, digital goods purchases, utility payments, purchases of games or gaming credits from gaming sites, transfers of funds between users, and the like.

[0037] As used herein, the terms "electronic wallet", "electronic wallet mobile application", and "digital wallet" may refer to one or more electronic devices and / or one or more software applications configured to initiate and / or conduct transactions (e.g., payment transactions, electronic payment transactions, etc.). For example, an electronic wallet may include a user device (e.g., mobile device, smart watch) that executes an application and server-side software and / or database for maintaining transaction data and providing the transaction data to the user device.

[0038] As used herein, the term "electronic wallet provider" may include an entity that provides and / or maintains an electronic wallet and / or electronic wallet mobile application for a user (e.g., a customer). Examples of electronic wallet providers include, but are not limited to, Google Wallet. TM、Android Apple and Samsung and / or other similar electronic payment systems. In some non-limiting examples, a financial institution (e.g., an issuer institution) may be an electronic wallet provider. As used herein, the term "electronic wallet provider system" may refer to one or more computer systems, computer devices, servers, server groups, etc. operated by or on behalf of an electronic wallet provider.

[0039] As used herein, the term "electronic wallet transaction processing system" may refer to one or more electronic devices and / or software applications configured to process transactions initiated and / or conducted by an electronic wallet application and / or request authentication of a user for such a transaction. For example, an electronic wallet transaction processing system may include server-side software and / or a database for maintaining transaction data and / or account data and providing the transaction data and / or account data to a merchant system and / or a payment gateway system to process an electronic wallet transaction and / or authenticate a user for such an electronic wallet transaction. An "electronic wallet transaction processing system provider" may include entities that provide and / or maintain electronic wallet transaction processing systems, such as Visa Checkout, Mastercard MasterPass, and others. TM , PayPal Checkout and / or other similar electronic wallet transaction processing system providers. In some non-limiting examples, the transaction service provider system can be an electronic wallet transaction processing system.

[0040] A "token service provider" may refer to an entity that includes one or more server computers that generate, process, and maintain tokens in a token service system. The token service provider may include or communicate with a token library that stores the generated token IDs. Specifically, the token library may maintain a one-to-one mapping between token IDs and non-fungible tokens (NFTs). Various entities in the tokenization ecosystem may assume the role of a token service provider. The token service provider may provide reports or data outputs to reporting tools regarding approved, pending, or rejected token requests, including any assigned token requester IDs. The token service provider may provide data outputs related to token-based transactions to reporting tools and applications, and present tokens and / or PANs in reporting outputs as appropriate.

[0041] "Token services system" refers to a system that facilitates the request, generation, and / or issuance of tokens, and the maintenance of an established mapping of non-fungible tokens (NFTs) to token IDs in a repository (e.g., a token library). In some embodiments or aspects, the token services system may establish a token assurance level for a given token to indicate the confidence level of the token's binding to a PAN. The token services system may support token processing for payment transactions submitted using the token by de-tokenizing the token to obtain the actual PAN. In various embodiments or aspects, the token services system may include a token requester and a token services provider that interacts with the token requester. In some embodiments or aspects, the token services system may include only a tokenization computer, or include a tokenization computer in combination with other computers such as a transaction processing network computer.

[0042] A "token requester identifier" may include any characters, numbers, or other identifiers associated with an entity associated with a network token system. For example, a token requester identifier may be associated with an entity registered with the network token system. In some embodiments, a unique token requester identifier may be assigned to each domain of a token request associated with the same token requester. For example, a token requester identifier may identify a pairing of a token requester (e.g., a mobile device, a mobile wallet provider, etc.) with a token domain (e.g., e-commerce, contactless, etc.). The token requester identifier may include any format or type of information. For example, in one embodiment, the token requester identifier may include a numerical value, such as a ten or eleven digit number (e.g., 4678012345).

[0043] In some embodiments, the token requester identifier can uniquely identify the pairing of the token requester and the token domain. Thus, in some embodiments, if the token requester can request tokens for multiple domains, the token requester can have multiple token requester identifiers, one for each domain.

[0044] For example, in some embodiments, the token requester identifier may include an 11-digit numerical value assigned by the network token system, and the token requester identifier may be unique within the token registry of each entity (and each domain). For example, the token requester identifier may include a code (e.g., the first 3 digits) for a token service provider such as the network token system, and the remaining digits (e.g., the last 8 digits) may be assigned by the token service provider for each requesting entity (e.g., mobile wallet provider) and each token domain (e.g., contactless, e-commerce, etc.).

[0045] In some embodiments, the token requester identifier can be used in a transaction during the authorization process. For example, the token requester identifier can be passed through a transaction request message to verify that the entity initiating the transaction is the same entity requesting and managing the token. In some embodiments, a token requester identifier can be assigned to an entity (e.g., a digital or mobile wallet provider, a merchant, a merchant of record, a payment enabler, etc.) during a login or registration process. In some embodiments, the acquirer / acquirer processor / payment enabler (i.e., a payment service provider) can populate the token requester identifier of each merchant, mobile wallet provider, consumer, etc. into the authorization message field before submitting the authorization request message to the payment processing network.

[0046] A "token repository" may refer to a repository that maintains established mappings. According to various embodiments or aspects, the token repository may also maintain other attributes of the token requester, which may be determined at registration time and which the token service provider may use to apply domain constraints or other controls during transaction processing. For example, the token repository may maintain a one-to-one mapping between a token and an account identification number represented by the token. The token repository may be part of a token service system. In some embodiments or aspects, the token repository may be provided as part of a token service provider. Alternatively, the token repository may be a remote repository accessible to the token service provider. The token repository may be protected by strong underlying physical and logical security due to the sensitive nature of the data mappings stored and managed therein.

[0047] In various aspects, the present disclosure provides a token service for NFTs that utilizes existing payment tracks, tokens, universal payment channels, and cryptographic APIs to enable everyone to participate in NFT commerce. In one aspect, a token ID is generated by a token service and returned to the NFT market. The NFT market provides a token ID to a token processing server so that the token ID can be stored in a token library off-chain. Off-chain storage allows NFT owners to quickly and easily provide proof of ownership of their NFTs. In addition, existing payment tracks or payment channels provide a convenient method for facilitating the transfer of funds from payers and payees in the exchange of purchasing NFTs and redeeming NFTs. In one aspect, tokens can be accessed or redeemed at a merchant's point of access (POA), and allow NFT owners and merchants to easily adopt NFTs in e-commerce using existing payment tracks and standard hardware (e.g., smartphones with NFTs, payment devices, etc.).

[0048] In various aspects, the present disclosure provides an efficient way for NFT owners to authenticate their NFTs off-chain and provide proof of authenticity and / or ownership. The present disclosure also provides a foolproof way to ensure the legitimacy of NFTs without having to know how to read NFT smart contract details. This solution leverages the off-chain token service provider capabilities to bring together an ecosystem where anyone, anywhere can effectively establish the ownership and authenticity of a token.

[0049] Therefore, the present disclosure provides an authentication service to improve NFT commerce. Potential users of the authentication service include merchants, digital wallet service providers, NFT markets, crypto wallet service providers, consumers, etc.

[0050] Figure 1 100 is a diagram showing a financial services company providing a token processing server 102 acting as a bridge between existing commerce 104 and NFT commerce 106 according to at least one aspect of the present disclosure. The financial services company and / or the token processing server 102 provide the bridge to enable NFT commerce. The financial services company and / or the token processing server 102 is a bridge between on-chain communication and off-chain communication. The token processing server 102 leverages existing payment rails, existing partners and members, token services, payment channels, and cryptographic APIs to enable NFT commerce, with little to no new hardware changes required by merchants in existing commerce, and no new behavior required by customers.

[0051] Figure 2 200 is a logical flow diagram of a method 200 for providing token services for NFTs according to at least one aspect of the present disclosure. According to the method 200, a token ID is issued 202 based on the NFT. Then, the ownership of the NFT is authenticated 204 using a payment track. Figure 3 and 4 Explain each of these functions.

[0052] Figure 3A system 300 for issuing a token ID based on an NFT according to at least one aspect of the present disclosure is provided. Initially, an NFT author 302 creates (1) an NFT anywhere and then places it on an NFT market computer 304. An NFT purchase is initiated (2) with the NFT market computer 304. The NFT market computer 304 requests and receives (3) a token ID from a token processing server 308. The token processing server 308 generates a token ID and stores it in a token library 310 associated with the token processing server 308. In various aspects, the token processing server 308 generates a token ID based on characteristics of the NFT, such as metadata and / or public / private keys associated with the NFT. The token processing server 308 provides (4) a token ID to the NFT market computer 304 based on identification characteristics of the NFT in response to a purchase or request. In at least one example, the token processing server 308 provides a token ID based on a public key and / or private key associated with the NFT. It should be understood that the token library 310 maintains a mapping between the NFT and the identification characteristics of the NFT used to generate the token ID. In at least one example, the token processing server 308 provides a token ID based on metadata associated with the NFT. The NFT owner 312 receives (5) the NFT image, private key, and token ID from the NFT market computer 304 to complete the purchase transaction. The private key corresponds to the public address of the NFT location on the blockchain and allows for on-chain authentication of NFT ownership. The NFT owner 312 pushes the token ID into the digital wallet 314. Push provisioning is a general capability that enables the NFT owner 312 to "push" the token ID from the crypto wallet 306 to a destination wallet 314 or merchant. The NFT owner 312 can move (7) the private key to any custodial wallet. Finally, the NFT owner 312 can access the token ID through the same digital wallet application 314 on their user device. The NFT owner can access the token ID as a way to display proof of ownership or authenticity at the POA. Additionally, a digital wallet mobile application (e.g., the X Pay app) and a reloadable debit card allow NFT owners 312 to shop, pay bills, and send money locally and abroad through existing payment rails (e.g., credit and debit cards).

[0053] In one aspect, the token processing server 308 may be Figure 2 and Figure 3 and implemented as a token processing server 308 in the network token system shown in column 16, line 43 to column 32, line 2 of U.S. Patent No. 11,093,936, which is incorporated herein by reference in its entirety.

[0054] Figure 4A system 400 for authenticating ownership of an NFT using a payment track according to at least one aspect of the present disclosure. In one aspect, an NFT owner 312 accesses (1) his digital wallet application (e.g., XPay) at a point of access 402 (POA). In one example, the POA 402 can be a physical merchant computer or point-of-sale terminal that allows a user to communicate via short-range wireless communication (e.g., NFC, RFID, Bluetooth, etc.). In addition, the NFT owner 312 can tap a receiver of the POA 402 with his user device to initiate communication with the POA 402. In another aspect, the NFT owner 312 can access his digital wallet through the merchant application using an API. When the user device is tapped or waved at the receiver of the POA 402, the merchant computer's POA computer 402 can capture data from the user device of the NFT owner 312. In one aspect, in an off-chain process, the NFT owner 312 may have registered as a token requestor with a token library and may have provided a token in a wallet application of a user device 314 (e.g., an NFC-enabled mobile phone). The NFT owner 312 can use the wallet application of the user device 314 to request access to the NFT. The merchant computer 402 can capture the token, token expiration date, token password (or other chip-based dynamic password), and POS input mode (as token presentation mode) from the user device 314. In one embodiment, the token requester identifier can be encrypted as part of the token and / or chip password data. The token requester identifier can correspond to the token ID at the token library 310.

[0055] The merchant computer 402 receives a request from the NFT owner 312 to access their NFT, and the merchant computer 402 sends an off-chain authentication request (2) to the token processing server 308 using an existing payment track. The token processing server 308 verifies the token against the token repository 310 to determine the authenticity of the token and identify further routing. The token processing server 308 can verify (3.1) the NFT against the token ID stored in the token repository 310, such as Figure 3As described in. In one aspect, the token processing server 308 receives NFT or token information provided by the NFT owner from the POA 402, and the token processing server 308 authenticates the NFT information against the NFT information stored in the token library 310. If the token ID is not stored in the token library 310, the token processing server 308 verifies (3.2) the authenticity of the NFT upon request by performing on-chain verification of the NFT using the blockchain, utilizing the appropriate NFT market computer 304. The NFT market computer 304 verifies (3.2) the public / private keys associated with the NFT blockchain and the NFT owner's crypto wallet 306. In one aspect, on-chain verification of the NFT can be performed at the time of purchase, and the token processing server 308 receives the token. In this regard, the token ID can be available in the token library 310 for off-chain authentication at a later time.

[0056] Once the verification process is complete, the token processing server 308 provides an authentication decision to the merchant computer / POA 402 through an existing payment track as an off-chain communication. The merchant computer 402 / point of access (POA) / authentication point computer provides access to the NFT to the NFT owner 312 based on the received authentication decision, such as access to an event or process. In one aspect, the NFT can provide event access. In this regard, the NFT can provide a more secure access method relative to conventional vouchers, tickets, or cards.

[0057] The authentication time for on-chain authentication is directly dependent on the underlying block rate of the specific blockchain (e.g., Solana’s current block rate is approximately 400 milliseconds; Ethereum’s current block rate is approximately 14 seconds). Once the token processing server receives the on-chain authentication in the form of a token ID, the rest of the communication is performed off-chain. The division between on-chain and off-chain communications is necessary to leverage existing payment rails, existing partners and members, tokens, payment channels, and crypto APIs. Therefore, the token processing server allows the NFT platform to integrate seamlessly with existing customer and merchant hardware. Finally, using existing payment rails allows merchants and customers to perform transactions in a more secure manner without requiring new behavior from customers and merchants. In some cases, merchants and / or customers may not be aware that a transaction uses an NFT.

[0058] Figure 5 is a logical flow diagram of a method 500 for issuing a token ID based on NFT metadata according to at least one aspect of the present disclosure. Figure 3According to method 500, an NFT author 302 creates 502 an NFT and places it in a market computer 304. An NFT owner 312 purchases 504 the NFT from the NFT market computer 304. A token processing server 308 receives 506 a request from the NFT market computer 304 to generate a token ID associated with the NFT. The token processing server 308 generates a token ID and stores it 508 in a token library 310. The token processing server 308 provides 510 the token ID to the NFT market computer 304 based on the NFT metadata and / or public and private keys. The NFT owner 312 pushes the token ID to a digital wallet 314.

[0059] Figure 6 is a logic flow diagram of a method 600 for authenticating ownership of an NFT using a payment rail in accordance with at least one aspect of the present disclosure. Figure 3 and Figure 4 According to method 600, an NFT owner initiates 602 an NFT access request at a point of access 402 (POA). The NFT owner can access his digital wallet through an application on his user device and provide a token ID to the POA through contactless tap communication. The token processing server 308 receives 604 an off-chain authentication request from the POA / merchant computer 302 on an existing payment track. The token processing server 308, together with the NFT market computer 304, verifies 606 the ownership of the NFT on the chain. The NFT market computer 304 verifies 608 the public / private key with the crypto wallet 306. The token processing server 308 provides 614 an authentication decision to the merchant computer 402 on the existing payment track (outside the chain). The token processing server 308 verifies 612 the authenticity of the token against the token library 310 and identifies the further routing of the token. In addition, the token processing server 308 provides 614 an authentication decision to the merchant computer 402 on the existing payment track (outside the chain).

[0060] Figure 7 is a logic flow diagram of a method 700 for delivering a seamless experience for authenticating an NFT that authorizes an NFT owner to access a special event in accordance with at least one aspect of the present disclosure. For example, an NFT token acts as a secure and unique key that allows the NFT owner to participate in the special event. Before the NFT owner 312 is authorized to access the special event, the process includes purchasing the NFT via the NFT token processing server 308 and creating a token ID associated with the NFT. Also refer to Figure 3 and 4According to method 700, a user becomes an NFT owner 312 by purchasing 702 an NFT on an NFT marketplace through a market computer 304. Similarly, prior to the event, an NFT token processing server 308 creates 704 a token ID. The NFT market computer 304 sends a request to the token processing server 308 to create a token ID based on the NFT metadata, and after receiving the metadata, sends the token ID to the public address of the NFT owner 312 to enable the NFT owner 312 to push the token ID to the digital wallet 314.

[0061] At the gate of a special event of the NFT owner 312, according to method 700 and also with reference to Figure 3 and Figure 4 , the NFT point of access (POA) computer 402 initiates verification of the NFT, authenticates the NFT using existing tracks, and authorizes the NFT owner 312 to access the special event. At the NFT owner's special event, the NFT owner 312 initiates 706 verification of the NFT at the access point 402 by tapping a user device (e.g., a smart watch) with a digital wallet application 314 on a POA receiver. The digital wallet application 314 stores the NFT credentials (e.g., token ID) provided to the POS terminal / gateway or any other POA device so that the NFT owner 312 can pass through the gate. Next, the token ID is authenticated 708 via the existing payment track. The payment terminal / gateway securely sends the data to the token processing server 308 on the payment track. For example, the payment gateway securely sends the data (business as usual data fields + token data) on the payment track to a payment processing company, which then sends the data to the token processing server 308 to determine whether the token ID is valid and / or associated with the NFT owner 312. If authentication is successful, the token processing server 308 sends a reply and authorizes 710 the NFT owner 312 to access the NFT owner's special events.

[0062] The token processing server 308 for NFTs described herein leverages the unique selling proposition of financial services companies and provides a natural extension of business models and strategies. The token processing server 308 for NFTs provides a complex, multi-stakeholder touchpoint ecosystem that cannot be easily replicated in the market. The token processing server 308 for NFTs can be built based on the existing capabilities of the network (authorization flow, acceptance network), hardware (terminals), and the same experience that customers and merchants are accustomed to (paying with a mobile phone or smart watch).

[0063] The token processing server 308 for NFTs described herein provides the advantage of exponential growth in market size: tokenization of all assets + metaverse + mirror world + AR. The token processing server 308 for NFTs establishes the central nervous system of the NFT economy, provides cross-network settlement (on-chain and off-chain), and enables the role of the network of networks in the decentralized web3.0 world. New use cases emerge every day, for example, in public transportation / transportation, loyalty, and are rapidly entering the early mass adoption stage.

[0064] The main applications of the token processing server 308 for NFT described herein include NFT markets, software encryption wallet providers, and digital wallets. In the NFT market, the token processing server 308 for NFT described herein avoids the challenge of fake NFTs and achieves top markets (>95% of transactions). Benefits include attracting more NFT authors 302 and buyers 312 (e.g., future NFT owners). For software encryption wallet providers, the token processing server 308 for NFT described herein can be embedded in NFT commerce and achieve top e-wallets. Benefits include avoiding disintermediation investments and the ability to make partnerships successful. For digital wallets, the token processing server 308 for NFT described herein can be used throughout the market, and top wallets are achieved, and then used as needed. Benefits include processing a larger share of client-side encryption transactions.

[0065] Secondary applications include applications for NFT authors 302, NFT owners 312, and access points 402.

[0066] The applications of the NFT and the token processing server 308 for NTF described herein are numerous and evolving. They form the central nervous system of NFT commerce. Recent applications include seamless experience at access point 402 (event) for NFT owner 312 redemption experience (e.g., concert tickets), verification of NFT legitimacy and solving fake NFTs, and settlement between merchant 402 and NFT author 302 and NFT owner 312 (e.g., $500 value redeemed at $10x50). The latter is an application in mid- and long-term applications. Mid-term applications include authentication across various services, including government to consumer (G2C) (land records), business to consumer (B2C) (events, games and loans for NFTs), and interoperability of crypto wallets across markets. Other applications include. Long-term applications include enabling brand-to-brand, physical and (immersive) digital experiences across the metaverse, augmented reality (AR) and the real world.

[0067] References Figure 1 and 2The various actors and elements described may operate one or more computer devices to facilitate the functionality described herein. Figure 1 , 3 Any element in and 4, including any server or database, may use any suitable number of subsystems to facilitate the functionality described herein.

[0068] Figure 8 Examples of such subsystems or components are shown in . Figure 8 The subsystems shown in the figure are interconnected via a system bus 1210. Additional subsystems are shown, such as a printer 1218, a keyboard 1226, a fixed disk 1228 (or other memory including computer readable media), a monitor 1222 coupled to a display adapter 1220, and others. Peripheral devices and input / output (I / O) devices coupled to an I / O controller 1212 (which may be a processor or other suitable controller) may be connected to the computer system by any number of means known in the art, such as a serial port 1224. For example, a serial port 1224 or an external interface 1230 may be used to connect a computer device to a wide area network such as the Internet, a mouse input device, or a scanner. Interconnection via the system bus allows the central processor 1216 to communicate with each subsystem and control the execution of instructions from the system memory 1214 or the fixed disk 1228 and the exchange of information between the subsystems. The system memory 1214 and / or the fixed disk 1228 may contain computer readable media.

[0069] Example

[0070] The following provides examples of methods according to various aspects of the present disclosure. One aspect of the method may include any one or more than one of the examples described below, and any combination thereof.

[0071] Example 1. A token processing server for processing non-fungible tokens, the token processing server comprising: a processor; and a memory coupled to the processor, the memory storing machine-executable instructions, which, when executed by the processor, cause the processor to: issue a token ID based on metadata of a non-fungible token (NFT); and authenticate ownership of the NFT using a payment track in response to an access request for the NFT.

[0072] Example 2. A token processing server according to Example 1, wherein, in order to issue the token ID, the machine-executable instructions, when executed, cause the processor to: receive a request for the token ID from an NFT market computer, wherein the request is sent in response to a customer purchasing the NFT; store the token ID in a token library coupled to the processor, wherein the token library includes a mapping of the token ID to the NFT; and provide the token ID to the NFT market computer based on metadata of the NFT and a key associated with a public address of the NFT, and the NFT market computer returns the token ID to the customer.

[0073] Example 3. A token processing server according to Example 2, wherein the token ID is issued based on on-chain communication with a blockchain corresponding to the NFT.

[0074] Example 4. A token processing server according to Examples 1-3, wherein, in order to authenticate ownership of the NFT, the machine-executable instructions, when executed, cause the processor to: receive an off-chain authentication request from a merchant computer via the payment track; bridge off-chain communications via the payment track with on-chain communications via the NFT market; and verify ownership of the NFT on-chain with an NFT market computer, wherein the token ID is associated with the NFT owner of the NFT.

[0075] Example 5. A token processing server according to Examples 1-4, wherein, in order to authenticate ownership of the NFT, the machine executable instructions, when executed, cause the processor to: verify the authenticity of the NFT against the token ID stored in the token repository; and provide an off-chain authentication decision to the merchant computer on an existing payment track.

[0076] Example 6. An off-chain token processing server for performing off-chain authentication on non-fungible tokens generated on a blockchain, the off-chain token processing server comprising: a processor; and a memory coupled to the processor, the memory storing machine-executable instructions, the machine-executable instructions, when executed by the processor, causing the processor to: generate an off-chain token ID based on the identification characteristics of the NFT; store the off-chain token ID in a token library coupled to the processor, wherein the token library includes a mapping of the token ID to the NFT; and authenticate the NFT based on the off-chain token.

[0077] Example 7. An off-chain token processing server according to Example 6, wherein the machine executable instructions, when executed, cause the processor to: receive an off-chain authentication request from an access point computer, wherein the off-chain authentication request is based on an access request for the NFT; and send an authentication decision to the access point computer based on the off-chain token ID.

[0078] Example 8. An off-chain token processing server according to Example 7, wherein the off-chain authentication request includes a token ID associated with the NFT.

[0079] Example 9. An off-chain token processing server according to Example 8, wherein the identification characteristic of the NFT is a key associated with a public address of the NFT.

[0080] Example 10. An off-chain token processing server according to Example 9, wherein the machine-executable instructions, when executed, cause the processor to perform off-chain verification of the NFT independently of the access point computer.

[0081] Example 11. An off-chain token processing server computer according to Example 10, wherein the authentication decision is further based on on-chain verification of the NFT.

[0082] Example 12. A method for processing a non-fungible token (NFT), the method comprising: receiving, by a token processing server, a request to generate an off-chain token ID for the NFT from an NFT market computer in response to a purchase of the NFT; issuing, by the token processing server, the off-chain token ID based on the metadata of the NFT; receiving, by the token processing server, an authentication request generated by an access point computer; authenticating, by the token processing server, ownership of the NFT based on information from a token repository associated with the token processing server; and providing, by the token processing server, an authentication decision to the access point computer based on the off-chain token ID.

[0083] Example 13. The method according to Example 12 also includes: storing the off-chain token ID in the token library by the token processing server in response to issuing the off-chain token ID.

[0084] Example 14. A method according to Examples 12-13, wherein the authentication request includes token information associated with the NFT, wherein the token information is retrieved from a digital wallet.

[0085] Example 15. A method according to Examples 12-14, wherein the token ID is based on a key associated with a public address of the NFT.

[0086] Example 16. The method according to Examples 12-15 also includes: the token processing server performing on-chain verification of the NFT independently of the access point computer.

[0087] Furthermore, it should be understood that any one or more of the forms, expressions of forms, and examples described below may be combined with any one or more of the other forms, expressions of forms, and examples described below.

[0088] Any of the software components or functions described in this application can be implemented as software code to be executed by a processor using any suitable computer language (e.g., Java, C++, or Perl), using, for example, conventional techniques or object-oriented techniques. The software code can be stored as a series of instructions or commands on a computer-readable medium, such as a random access memory (RAM), a read-only memory (ROM), a magnetic medium such as a hard drive or floppy disk, or an optical medium such as a CD-ROM. Any such computer-readable medium can reside on or within a single computing device, and can exist on or within different computing devices within a system or network.

[0089] Although several forms have been shown and described, the applicant has no intention to limit or confine the scope of the appended claims to such details. Without departing from the scope of the present disclosure, many modifications, variations, changes, substitutions, combinations and equivalents to these forms may be implemented, and these modifications, variations, changes, substitutions, combinations and equivalents will be thought of by those skilled in the art. In addition, the structure of each element associated with the form may be alternatively described as a means for providing the function performed by the element. In addition, when disclosing the material of certain parts, other materials may be used. Therefore, it should be understood that the aforementioned description and the appended claims are intended to cover all such modifications, combinations and variations within the scope of the disclosed form. The appended claims are intended to cover all such modifications, variations, changes, substitutions, modifications and equivalents.

[0090] The foregoing detailed description has been described in various forms of apparatus and / or processes by using block diagrams, flow charts, and / or examples. To the extent that these block diagrams, flow charts, and / or examples contain one or more functions and / or operations, it will be understood by those skilled in the art that each function and / or operation in such block diagrams, flow charts, and / or examples can be implemented individually and / or collectively by a wide range of hardware, software, firmware, or almost any combination thereof. It will be recognized by those skilled in the art that some aspects of the forms disclosed herein can be implemented equivalently in whole or in part in an integrated circuit, as one or more computer programs running on one or more computers (e.g., as one or more programs running on one or more computer systems), as one or more programs running on one or more processors (e.g., as one or more programs running on one or more microprocessors), as firmware, or almost any combination thereof, and it will be recognized that, given the present disclosure, designing circuits and / or writing code for software and / or firmware will be well within the skill of those skilled in the art. Additionally, those skilled in the art will appreciate that the mechanisms of the subject matter described herein can be distributed in a variety of forms as one or more program products and that the illustrative forms of the subject matter described herein apply regardless of the particular type of signal bearing medium used to actually carry out the distribution.

[0091] Instructions for programming logic to perform various disclosed aspects can be stored in a memory in the system, such as a dynamic random access memory (DRAM), a cache, a flash memory, or other storage device. In addition, these instructions can be distributed via a network or by means of other computer-readable media. Therefore, a machine-readable medium may include any mechanism for storing or transmitting information in a machine (e.g., computer) readable form, but is not limited to a floppy disk, an optical disk, a compact disc, a read-only memory (CD-ROM) and a magneto-optical disk, a read-only memory (ROM), a random access memory (RAM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic card or an optical card, a flash memory, or a tangible machine-readable storage device for transmitting information via an electrical, optical, acoustic, or other form of propagation signal (e.g., a carrier wave, an infrared signal, a digital signal, etc.) via the Internet. Therefore, a non-transitory computer-readable medium includes any type of tangible machine-readable medium suitable for storing or transmitting electronic instructions or information in a machine (e.g., computer) readable form.

[0092] As used in any aspect of this document, the term "control circuitry" may refer to, for example, hard-wired circuitry, programmable circuitry (e.g., a computer processor including one or more separate instruction processing cores, a processing unit, a processor, a microcontroller, a microcontroller unit, a controller, a digital signal processor (DSP), a programmable logic device (PLD), a programmable logic array (PLA), or a field programmable gate array (FPGA)), a state machine circuit, firmware that stores instructions executed by the programmable circuitry, and any combination thereof. The control circuitry may be embodied collectively or individually as circuitry that forms part of a larger system, such as an integrated circuit (IC), an application specific integrated circuit (ASIC), a system on a chip (SoC), a desktop computer, a laptop computer, a tablet computer, a server, a smart phone, etc. Thus, as used herein, "control circuitry" includes, but is not limited to, circuitry having at least one discrete circuit, circuitry having at least one integrated circuit, circuitry having at least one application specific integrated circuit, circuitry forming a general purpose computing device configured by a computer program (e.g., a general purpose computer configured by a computer program that at least partially performs the processes and / or devices described herein, or a microprocessor configured by a computer program that at least partially performs the processes and / or devices described herein), circuitry forming a memory device (e.g., in the form of random access memory), and / or circuitry forming a communication device (e.g., a modem, a communications switch, or an optoelectronic device). Those skilled in the art will recognize that the subject matter described herein may be implemented in an analog or digital manner, or some combination thereof.

[0093] As used in any aspect of this document, the term "logic" may refer to an application, software, firmware, and / or circuitry configured to perform any of the foregoing operations. Software may be embodied as a software package, code, instructions, instruction sets, and / or data recorded on a non-transitory computer-readable storage medium. Firmware may be embodied as code, instructions, or instruction sets and / or data hard-coded (e.g., non-volatile) in a memory device.

[0094] As used in any aspect herein, the terms "component," "system," "module," and the like may refer to a computer-related entity, whether hardware, a combination of hardware and software, software, or software in execution.

[0095] As used in any aspect herein, an "algorithm" refers to a self-consistent sequence of steps leading to a desired result, where "steps" refer to manipulations of physical quantities and / or logical states, which may, but need not necessarily, take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared, and otherwise manipulated. It is common usage to refer to these signals as bits, values, elements, symbols, characters, terms, numbers, etc. These and similar terms may be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities and / or states.

[0096] The network may include a packet switching network. The communication devices can communicate with each other using the selected packet switching network communication protocol. An exemplary communication protocol may include an Ethernet communication protocol, which can allow communication using a transmission control protocol / Internet protocol (TCP / IP). The Ethernet protocol may conform to or be compatible with the Ethernet standard entitled "IEEE 802.3 Standard" published by the Institute of Electrical and Electronics Engineers (IEEE) in December 2008 and / or a higher version of this standard. Alternatively or in addition, the communication devices can communicate with each other using the X.25 communication protocol. The X.25 communication protocol may conform to or be compatible with the standards promulgated by the International Telecommunication Union-Telecommunication Standardization Sector (ITU-T). Alternatively or in addition, the communication devices can communicate with each other using the frame relay communication protocol. The frame relay communication protocol may conform to or be compatible with the standards promulgated by the International Telegraph and Telephone Consultative Committee (CCITT) and / or the American National Standards Institute (ANSI). Alternatively or in addition, the transceivers can communicate with each other using the asynchronous transfer mode (ATM) communication protocol. The ATM communication protocol may conform to or be compatible with the ATM standard entitled "ATM-MPLS Network Interworking 2.0" published by the ATM Forum in August 2001 and / or a later version of this standard. Of course, different and / or development-post connection-oriented network communication protocols are also contemplated herein.

[0097] Unless expressly noted in the foregoing disclosure, it should be understood that throughout the foregoing disclosure, discussions using terms such as "processing," "computing," "calculating," "determining," "displaying," etc. refer to the actions and processes of a computer system or similar electronic computing device that manipulates data represented as physical (electronic) quantities within the computer system's registers and memories and transforms it into other data similarly represented as physical quantities within the computer system's memories or registers or other such information storage, transmission, or display devices.

[0098] One or more components may be referred to herein as being "configured to," "configurable to," "operable / operable to," "suitable / adaptable to," "capable of," "compliant / compliant to," etc. Those skilled in the art will recognize that, unless the context requires otherwise, "configured to" may generally encompass active state components and / or inactive state components and / or standby state components.

[0099] Those skilled in the art will recognize that, in general, the terms used herein, and particularly in the appended claims (e.g., the bodies of the appended claims), are generally intended to be "open" terms (e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "including but not limited to," etc.). Those skilled in the art will further understand that if a specific number of an introduced claim recitation is intended, such intent will be explicitly recited in the claim, and in the absence of such recitation, such intent is absent. For example, as an aid to understanding, the appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such phrases should not be construed as implying that introduction of a claim recitation by the indefinite article "a" or "an" limits any particular claim containing the claim recitation so introduced to claims containing only one such recitation, even when the same claim contains the introductory phrases "one or more" or "at least one" and an indefinite article such as "an" (e.g., "a" and / or "an" should generally be construed to mean "at least one" or "one or more"); the same applies where a definite article is used to introduce a claim recitation.

[0100] In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should generally be interpreted as meaning at least the recited number (e.g., the plain recitation "two recitations" without other modifiers generally means at least two recitations or two or more recitations). In addition, in those cases where a convention similar to "at least one of A, B, and C, etc." is used, generally, such construction is made in the sense that a person skilled in the art will understand such convention (e.g., "a system having at least one of A, B, and C" will include but is not limited to a system having A alone, B alone, C alone, a combination of A and B, a combination of A and C, a combination of B and C, and / or a combination of A, B, and C, etc.). In those cases where a convention similar to "at least one of A, B, or C, etc." is used, generally, such construction is made in the sense that a person skilled in the art will understand such convention (e.g., "a system having at least one of A, B, or C" will include but is not limited to a system having A alone, B alone, C alone, a combination of A and B, a combination of A and C, a combination of B and C, and / or a combination of A, B, and C, etc.). Those skilled in the art will further understand that unless the context dictates otherwise, separators and / or phrases presenting two or more alternative terms, whether in the description, claims or drawings, should generally be understood to contemplate the possibility of including one of the terms, any one of the terms, or both of the terms. For example, the phrase "A or B" will generally be understood to include the possibility of "A" or "B" or "A and B".

[0101] With respect to the appended claims, those skilled in the art will appreciate that the operations described therein may generally be performed in any order. Furthermore, although the various operational flow charts are presented in (multiple) sequences, it is understood that the various operations may be performed in other orders than those illustrated, or may be performed simultaneously. Examples of such alternative sequences may include overlapping, interleaved, interrupted, reordered, incremental, preparatory, supplementary, simultaneous, reverse, or other variant sequences, unless the context indicates otherwise. Furthermore, unless the context indicates otherwise, terms such as "responsive to," "related to," or other past tense adjectives are generally not intended to exclude such variants.

[0102] It is worth noting that any reference to "one aspect," "an aspect," "an example," "an example," etc. means that a particular feature, structure, or characteristic described in conjunction with the aspect is included in at least one aspect. Thus, the appearance of the phrases "in one aspect," "in an aspect," "in an example," and "in an example" in various places throughout the specification are not necessarily referring to the same aspect. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more aspects.

[0103] Any patent application, patent, non-patent publication, or other public material referred to in this specification and / or listed in any application data sheet is incorporated herein by reference to the extent that the incorporated material is consistent with this document. Therefore, and to the extent necessary, the disclosure explicitly set forth herein supersedes any conflicting material incorporated herein by reference. Any material or portion thereof that is said to be incorporated herein by reference but conflicts with existing definitions, statements, or other public material set forth herein is incorporated only to the extent that no conflict arises between the incorporated material and the existing public material.

[0104] In summary, many benefits have been described that result from adopting the concepts described herein. For purposes of illustration and description, the foregoing description of one or more forms has been presented. This is not intended to be exhaustive or limited to the precise forms disclosed. In view of the above teachings, modifications or variations are possible. One or more forms have been selected and described in order to illustrate the principles and practical applications, so that a person of ordinary skill in the art can utilize various forms and make various modifications suitable for the specific purpose contemplated. The claims submitted herein are intended to define the overall scope.

[0105] The above description is illustrative rather than restrictive. After reading this disclosure, many variations of the present invention will become apparent to those skilled in the art. Therefore, the scope of the present disclosure should not be determined with reference to the above description, but should be determined with reference to the pending claims and their full scope or equivalents.

[0106] All patents, patent applications, publications, and descriptions mentioned above are incorporated herein by reference in their entirety for all purposes. None are admitted to be prior art.

Claims

1. A token processing server for processing non-fungible tokens, the token processing server comprising: processor; as well as a memory coupled to the processor, the memory storing machine-executable instructions that, when executed by the processor, cause the processor to: Issue a token ID based on the metadata of the non-fungible token (NFT); and Based on the access request of the NFT, the ownership of the NFT is authenticated using a payment track.

2. The token processing server according to claim 1, wherein: To issue the token ID, the machine executable instructions, when executed, cause the processor to: receiving a request for the token ID from an NFT marketplace computer, wherein the request is sent based on a customer purchasing the NFT; storing the token ID in a token repository coupled to the processor, wherein the token repository includes a mapping of the token ID to the NFT; and The token ID is provided to the NFT market computer based on the metadata of the NFT and a key associated with the public address of the NFT, and the NFT market computer returns the token ID to the customer.

3. The token processing server according to claim 2, wherein: The token ID is issued based on on-chain communication with the blockchain corresponding to the NFT.

4. The token processing server according to claim 1, wherein: To authenticate ownership of the NFT, the machine-executable instructions, when executed, cause the processor to: receiving an off-chain authentication request from a merchant computer via the payment rail; Bridging off-chain communications through the payment rails with on-chain communications through the NFT marketplace; and Ownership of the NFT is verified on-chain using an NFT market computer, wherein the token ID is associated with the NFT owner of the NFT.

5. The token processing server according to claim 1, wherein: To authenticate ownership of the NFT, the machine-executable instructions, when executed, cause the processor to: Verifying the authenticity of the NFT against the token ID stored in the token repository; and An off-chain authentication decision is provided to the merchant computer on an existing payment rail.

6. An off-chain token processing server for performing off-chain authentication on a non-fungible token generated on a blockchain, the off-chain token processing server comprising: processor; as well as a memory coupled to the processor, the memory storing machine-executable instructions that, when executed by the processor, cause the processor to: Generate an off-chain token ID based on the identification characteristics of the NFT; storing the off-chain token ID in a token repository coupled to the processor, wherein the token repository includes a mapping of the token ID to the NFT; and Authenticate the NFT based on the off-chain token.

7. The off-chain token processing server according to claim 6, wherein: The machine executable instructions, when executed, cause the processor to: Receiving an off-chain authentication request from an access point computer, wherein the off-chain authentication request is based on an access request for the NFT; An authentication decision is sent to the access point computer based on the off-chain token ID.

8. The off-chain token processing server according to claim 7, wherein: The off-chain authentication request includes a token ID associated with the NFT.

9. The off-chain token processing server according to claim 8, wherein: The identifying characteristic of the NFT is a key associated with the public address of the NFT.

10. The off-chain token processing server according to claim 9, wherein: The machine-executable instructions, when executed, cause the processor to perform off-chain verification of the NFT independently of the access point computer.

11. The off-chain token processing server computer according to claim 10, wherein: The authentication decision is further based on on-chain verification of the NFT.

12. A method for processing a non-fungible token (NFT), the method comprising: Receiving, by a token processing server, a request from an NFT market computer to generate an off-chain token ID for an NFT based on a purchase of the NFT; The token processing server issues the off-chain token ID based on the metadata of the NFT; receiving, by the token processing server, an authentication request generated by an access point computer; authenticating, by the token processing server, ownership of the NFT based on information from a token repository associated with the token processing server; as well as An authentication decision is provided by the token processing server to the access point computer based on the off-chain token ID.

13. The method according to claim 12, further comprising: The token processing server stores the off-chain token ID in the token library based on issuing the off-chain token ID.

14. The method according to claim 12, wherein: The authentication request includes token information associated with the NFT, wherein the token information is retrieved from a digital wallet.

15. The method according to claim 12, wherein: The token ID is based on a key associated with the public address of the NFT.

16. The method according to claim 12, further comprising: On-chain verification of the NFT is performed by the token processing server independently of the access point computer.

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