Method, device and equipment for setting video ringback tone and storage medium

Abstract

Embodiments of the application disclose a video ringtone setting method, device and equipment and a storage medium. The method comprises: in response to receiving a purchase request of a digital collectible from a first user, calling a first smart contract interface to realize the transfer of rights of the digital collectible and a corresponding digital twin; wherein the digital collectible and the corresponding digital twin are obtained by minting and issuing a source file of the digital collectible based on IP copyright; in response to receiving a secondary creation operation of the digital twin from a second user, obtaining an NFT video ringtone; wherein the digital twin is authorized by the first user; and displaying the NFT video ringtone for a third user to order and set. Thus, the digital collectible is externally displayed in the form of a video ringtone, so that a collector who purchases the digital collectible can form the issuance and sale of the content of the collectible through the business logic of the video ringtone, and the second user can perform secondary creation on the digital twin, thereby improving user participation.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of computer technology, and in particular to a method, apparatus, device, and storage medium for setting up video ringback tones. Background Technology

[0002] Video ringback tones are a unique music service offered by telecom operators. With the continuous development of 4G / 5G technology, the traditional ringback tone market has changed. As an upgraded version of traditional ringback tones, video ringback tones provide users with a better experience and bring new profit growth points to the content, product, terminal, and ecosystem industries. At the same time, the video ringback tone service also faces challenges such as business model innovation and improving user engagement.

[0003] Currently, video ringback tones are mainly set up by users through the video ringback tones platform provided by the operator. After the setting is completed, when the calling user calls the user, the video ringback tones platform plays the set video ringback tones to the calling user.

[0004] However, this method has the problem that users cannot trade the video ringback tones they have purchased, nor can they create derivative works based on the video ringback tones they have purchased. Summary of the Invention

[0005] In view of this, embodiments of this application provide at least one method, apparatus, device, and storage medium for setting video ringback tones.

[0006] The technical solution of this application embodiment is implemented as follows:

[0007] On one hand, embodiments of this application provide a method for setting video ringback tones, the method comprising:

[0008] In response to receiving a purchase request from a first user for a digital collectible, the system invokes a first smart contract interface to transfer the rights and interests of the digital collectible and its corresponding digital twin; wherein the digital collectible and its corresponding digital twin are obtained by casting and distributing the source files of the digital collectible based on IP copyright; in response to receiving a secondary creation operation on the digital twin from a second user, an NFT video ringback tone is obtained; wherein the digital twin is authorized by the first user; the NFT video ringback tone is displayed for a third user to order and set.

[0009] In some implementations, the step of responding to receiving a purchase request from a first user for a digital collectible and invoking a first smart contract interface to transfer the rights and interests of the digital collectible and its corresponding digital twin includes: responding to receiving a purchase request from a first user for a digital collectible, recording the association between the first user, the digital collectible, and the digital twin; and invoking the first smart contract interface to process the association on the blockchain to transfer the rights and interests of the digital collectible and its corresponding digital twin.

[0010] In some implementations, after displaying the NFT video ringback tone, the method further includes: receiving and recording the subscription request for the NFT video ringback tone from the third user to obtain a user subscription record; and performing fee sharing based on the user subscription record and a preset revenue sharing ratio; wherein the preset revenue sharing ratio is dynamically determined based on business rules.

[0011] In some implementations, the step of sharing fees based on the user subscription records and a preset revenue sharing ratio includes: calling a second smart contract interface to obtain the current total number of subscriptions for the NFT video ringback tone; determining, at least based on the user subscription records, multiple participants in the NFT video ringback tone and the single subscription fee for the NFT video ringback tone; and determining the total revenue share for each participant based on the preset revenue sharing ratio, the single subscription fee for the NFT video ringback tone, and the current total number of subscriptions.

[0012] In some implementations, before receiving a purchase request from the first user for the digital collectible, the method includes: obtaining an IP copyright license for the digital collectible; creating source files and corresponding digital twins of the digital collectible based on the IP copyright; and completing the creation and distribution of the source files and digital twins of the digital collectible through a third smart contract interface.

[0013] In some implementations, the creation of source files and corresponding digital twins of the digital collectibles based on the IP copyright includes: combining and creating different source files of the digital collectibles according to preset content generation elements; the preset content generation elements include at least the following items: video resolution, headdress, hairstyle, background, and unique digital number; and performing digital content watermarking and / or low-resolution processing on the original content of the digital collectibles to obtain the digital twins corresponding to the digital collectibles.

[0014] In some implementations, after the transfer of rights to the digital twin, the method further includes: prompting the second user to participate in the content secondary creation process of the digital twin through an authorization prompt interface; in response to the second user's confirmation of participation, displaying an editing interface for the second user to perform secondary creation operations on the digital twin; wherein the editing interface provides self-made templates and / or special effects, and is equipped with preset controls, and when the preset controls are triggered, calling a fourth smart contract interface to query the attribute information of the source file of the digital collectible.

[0015] In some implementations, after obtaining the NFT video ringback tone, the method further includes: reviewing the NFT video ringback tone; and distributing the reviewed NFT video ringback tone to preset channels to display the NFT video ringback tone.

[0016] On the other hand, embodiments of this application provide a device for setting video ringback tones, the device comprising:

[0017] The rights transfer module is used to respond to receiving a purchase request from a first user for a digital collectible by calling a first smart contract interface to realize the rights transfer of the digital collectible and its corresponding digital twin; wherein, the digital collectible and its corresponding digital twin are obtained by casting and issuing the source files of the digital collectible based on IP copyright;

[0018] A secondary creation module is used to respond to receiving a secondary creation operation from a second user on the digital twin to obtain an NFT video ringback tone; wherein the digital twin is authorized by the first user;

[0019] The management and display module is used to display the NFT video ringback tones for third-party users to order and set.

[0020] In another aspect, embodiments of this application provide a computer device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the processor executes the program to implement some or all of the steps in the above-described method.

[0021] In another aspect, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements some or all of the steps in the above-described method.

[0022] In this embodiment, firstly, in response to receiving a purchase request for digital collectibles from a first user, the first smart contract interface is invoked to realize the transfer of rights and interests of the digital collectibles and their corresponding digital twins; secondly, in response to receiving a secondary creation operation on the digital twins from a second user, an NFT video ringback tone is obtained; finally, the NFT video ringback tone is displayed for a third user to subscribe to and set. Thus, by minting and issuing the source files of digital collectibles, on-chain digital collectibles and digital twins are obtained. The digital twins are purchased and authorized by the first user, and then sold as NFT video ringback tones after secondary creation by the second user. This enables digital collectibles to be displayed externally in the form of video ringback tones, allowing collectors who purchase digital collectibles to form the issuance and sale of collectible content through the video ringback tone business logic; at the same time, it supports the second user to perform secondary creation on the digital twins, obtain NFT video ringback tones and display them, making it convenient for other users to subscribe.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and are not intended to limit the technical solutions of this disclosure. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the technical solutions of this application.

[0025] Figure 1 A schematic diagram of an optional process for setting a video ringback tone according to an embodiment of this application;

[0026] Figure 2 A schematic diagram of an optional process for setting a video ringback tone according to an embodiment of this application;

[0027] Figure 3 A schematic diagram of an optional process for setting a video ringback tone according to an embodiment of this application;

[0028] Figure 4 A schematic diagram illustrating the generation of corresponding digital twins based on digital collectibles, provided as an embodiment of this application;

[0029] Figure 5A A system block diagram of a video ringback tone setting method provided in an embodiment of this application;

[0030] Figure 5B A logic flowchart of a video ringback tone setting method provided in an embodiment of this application;

[0031] Figure 5C A schematic diagram of a UGC secondary creation editing page provided in an embodiment of this application;

[0032] Figure 6A schematic diagram illustrating the structural composition of a video ringback tone setting device provided in an embodiment of this application;

[0033] Figure 7 This is a schematic diagram of the hardware entity of a computer device provided in an embodiment of this application.

[0034] The following are the labels in the diagram: 41—Digital Collections; 42—Digital Twins; 51—Video Ringback Tone Access Module; 52—NFT Capability Module; 53—Video Ringback Tone DIY Creation Module; 54—Video Ringback Tone Distribution Management Module; 55—Video Ringback Tone Management and Display Module; 56—Settlement and Billing Module; 531—Editing Page. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application are further described in detail below with reference to the accompanying drawings and embodiments. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0037] The terms “first / second / third” are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that “first / second / third” may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application.

[0039] Before providing a further detailed description of the embodiments of this application, the nouns and terms involved in the embodiments of this application will be explained, and the nouns and terms involved in the embodiments of this application shall be interpreted as follows.

[0040] Digital collectibles refer to unique digital credentials generated using blockchain technology for specific works of art. These credentials enable authentic and reliable digital issuance, purchase, collection, and use while protecting the digital copyright of the artwork. Digital collectibles represent a new form of digital publication and are categorized into two types: blockchain-based copyrighted works and blockchain-based digital publishing products.

[0041] Non-fungible tokens (NFTs) are encrypted digital proofs of rights that are not copyable, tamper-proof, or divisible, and are built on blockchain technology. They are mapped to physical assets such as collectibles and virtual assets such as images, music, and game items.

[0042] Common tokens like BTC (Bitcoin) and ETH (Ether) are fungible; each BTC is indistinguishable and interchangeable. The key characteristic of NFTs is that each NFT has a unique and irreplaceable identifier, is not interchangeable, has a minimum unit of 1, and is indivisible. Each NFT maps to a unique serial number on a specific blockchain, is immutable, indivisible, and cannot be substituted for another. These characteristics make NFTs an excellent medium for digital art; each NFT represents a specific digital artwork or a limited-edition copy, recording its immutable on-chain rights. Therefore, NFTs are fundamentally different from fungible tokens like cryptocurrencies. They are backed by the actual value of digital goods but lack any monetary attributes such as payment functionality. NFTs are unique because they are based on blockchain technology and, from their inception, establish a unique mapping relationship with a specific digital good, serving as unique proof of rights for that digital good on a specific blockchain.

[0043] Since the first NFT project, Cryptopunks, in 2017, the NFT industry has gone through a period of infancy and exploration, and entered a period of rapid expansion in 2021. Meanwhile, the domestic NFT market is still in its early stages of exploration. The main NFT sales or trading platforms in China include Alibaba Auction, AntChain FanGrain, PhantomCore, and NFT China. Due to policy regulations, current sales are mainly focused on initial public offerings, and the external display and circulation of NFTs are restricted, affecting the consensus on the value of NFTs.

[0044] Currently, video ringback tones are primarily set up by users through a video ringback tones platform provided by mobile operators. Once set up, the platform plays the pre-set video ringback tone when the calling user calls the called user. However, with the continuous development of 4G / 5G technology, the traditional video ringback tones service model is no longer suitable for the new technological environment, and user engagement is also low.

[0045] This application provides a method for setting video ringback tones, which can be executed by the processor of a computer device. The computer device can refer to a server, laptop, tablet, desktop computer, smart TV, set-top box, mobile device (such as a mobile phone, portable video player, personal digital assistant, dedicated messaging device, portable gaming device), or any other device capable of setting video ringback tones. Figure 1The following is a schematic diagram of an optional process for setting a video ringback tone according to an embodiment of this application, such as... Figure 1 As shown, the method includes the following steps S110 to S140:

[0046] Step S110: In response to receiving a purchase request from the first user for the digital collectible, the first smart contract interface is invoked to realize the transfer of rights and interests of the digital collectible and its corresponding digital twin.

[0047] Here, the digital collectibles and corresponding digital twins are obtained by the business ringback tone operator based on IP (Intellectual Property) copyright, through the creation and distribution of the source files of the digital collectibles. For example, through the capabilities of the digital collectible engine, the attribute information of the source files, such as resolution, headdress, hairstyle, background, etc., is encrypted and uploaded to the blockchain, and the issuance quantity and issuance price are configured to complete the creation and distribution of digital collectibles.

[0048] The content of digital collections can be text documents, images, videos, or other data that can be stored on a computer hard drive, such as a painting by an artist or a video of a speech by a well-known entrepreneur. This application does not limit this.

[0049] It should be noted that before minting and issuing digital collectibles, the video ringback tone service operator cooperates with the copyright holder of the digital collectibles on IP copyright, and obtains the copyright holder's rights to develop digital collectibles NFTs based on the IP, as well as the rights to create and sell video ringback tones.

[0050] Step S120: In response to receiving a secondary creation operation from the second user on the digital twin, an NFT video ringback tone is obtained.

[0051] Here, the digital twin is authorized by the first user, i.e. the collector, and is used by the second user, i.e. the creator, to create and subscribe to video ringtones, thereby preventing the theft of the source files and effectively protecting IP copyright; wherein the second user can be the same as or different from the first user.

[0052] After purchasing a digital collectible, the first user obtains ownership of the collectible and the corresponding rights to create content on the digital twin. This allows them to authorize other second users to create secondary content on the digital twin.

[0053] Optionally, a user authorization page can be designed on the video ringback tone service platform to prompt the second user to authorize participation. The second user can review and understand the UGC secondary creation rules and profit sharing model, choose to authorize participation in the creation activity, and perform secondary creation of digital twins through the templates, special effects and other DIY production capabilities provided by the platform.

[0054] It is worth noting that after the second user completes the creation, the video ringback tone service platform records the mapping relationship between the NFT video ringback tone and the digital collectible source file, and associates the NFT video ringback tone with the second user's ID for subsequent querying.

[0055] Step S130: Display the NFT video ringback tone for third-party users to order and set.

[0056] Here, NFT video ringback tones are displayed through a video ringback service platform. Third-party users purchase the NFT video ringback tones through a third-party payment platform and further set them as their own call ringback tones.

[0057] In some implementations, after the content of the NFT video ringback tone created by the second user is approved, it is published to preset channels such as the music APP or the mobile app associated with the video ringback tone service platform for display. For example, a digital collectibles sales area is provided on the main interface of the mobile app, displaying NFT video ringback tones and prompting users to subscribe as needed.

[0058] In some implementations, when a third user purchases an NFT video ringback tone, they can log in to the music app or mobile app associated with the video ringback tone service platform and search for and select the NFT video ringback tone to make the purchase. For example, they can be redirected to a third-party payment platform such as WeChat or Alipay to pay the price and handling fee for the NFT video ringback tone. Afterwards, the music app or mobile app displays the ownership confirmation information, and the third user can then enter the "Personal Center" interface of the music app or mobile app to set the NFT video ringback tone as their own exclusive ringback tone.

[0059] In this embodiment, firstly, in response to receiving a purchase request for digital collectibles from a first user, the first smart contract interface is invoked to realize the transfer of rights and interests of the digital collectibles and their corresponding digital twins; secondly, in response to receiving a secondary creation operation on the digital twins from a second user, an NFT video ringback tone is obtained; finally, the NFT video ringback tone is displayed for a third user to subscribe to and set. Thus, by minting and issuing the source files of digital collectibles, on-chain digital collectibles and digital twins are obtained. The digital twins are purchased and authorized by the first user, and then sold as NFT video ringback tones after secondary creation by the second user. This enables digital collectibles to be displayed externally in the form of video ringback tones, allowing collectors who purchase digital collectibles to form the issuance and sale of collectible content through the video ringback tone business logic; at the same time, it supports the second user to perform secondary creation on the digital twins, obtain NFT video ringback tones and display them, making it convenient for other users to subscribe.

[0060] In some embodiments, step S110 may include the following steps S111 to S112:

[0061] Step S111: In response to receiving a purchase request from the first user for the digital collectible, record the association between the first user, the digital collectible, and the digital twin.

[0062] Here, the video ringback tone service platform associates the first user's identifier (uID), the digital collectible's identifier (NFT-Token-ID), and the corresponding digital twin's identifier (twin-ID) to form an association relationship such as (uID, NFT-Token-ID, twin-ID).

[0063] Step S112: Call the first smart contract interface to process the association on the blockchain, so as to realize the transfer of rights and interests of the digital collectibles and corresponding digital twins.

[0064] Here, the first smart contract interface is an NFT contract interface such as safeTransferFrom, which enables the transaction flow of the on-chain relationship and completes the transfer of rights and interests of the digital twin corresponding to the digital collectible.

[0065] In the above embodiments, in response to receiving a purchase request from a first user for a digital collectible, the video ringback tone service platform records the association between the collectible purchaser and the digital collectible and its digital twin, and then completes the transfer of rights and interests of the digital collectible and its corresponding digital twin through the first smart contract interface. Thus, the first user, i.e. the collectible purchaser, obtains ownership of the digital collectible and at the same time obtains the content secondary creation rights of the corresponding digital twin.

[0066] In some embodiments, after the transfer of rights to the digital twin in step S110, the method further includes the following steps:

[0067] Step S113: The second user is prompted to participate in the content creation process of the digital twin through the authorization prompt interface.

[0068] Here, the authorization prompt interface can display the rules and profit model for digital collection UGC (User Generated Content) secondary creation. The second user can confirm participation in the secondary creation activity after reviewing and accepting the above rules.

[0069] The concept of User-Generated Content (UGC) originated in the internet field, referring to users showcasing or providing their original content to other users through internet platforms. UGC arose alongside the Web 2.0 concept, which emphasizes personalization, and is also known as User-Created Content. It's not a specific business service, but rather a new way users engage with the internet, shifting from primarily downloading to a balance between downloading and uploading. With the development of internet usage, the interactive role of online users has become apparent; users are both viewers and creators of online content. Websites like YouTube can be seen as successful examples of UGC, and social networking, video sharing, blogs, and podcasts (video sharing) are all major application forms of UGC.

[0070] Step S114: In response to the second user's confirmation of participation, an editing interface is displayed for the second user to perform secondary creation operations on the digital twin.

[0071] Here, the editing interface provides customizable templates and / or effects, and includes preset controls. When these preset controls are triggered, a fourth smart contract interface is invoked to query the attribute information of the source file of the digital collectible. The fourth smart contract interface can be a tokenURI, used to obtain the source file storage URI (Uniform Resource Identifier) ​​of the digital collectible.

[0072] In some embodiments, after obtaining the NFT video ringback tone in step S120, the method further includes the following steps S121 to S122:

[0073] Step S121: Review the NFT video ringback tone.

[0074] Here, the video ringback tone service platform reviews whether the NFT video ringback tones created by the second user comply with the specifications and relevant requirements, such as the resolution not exceeding 720P or the original digital collection not being maliciously tampered with.

[0075] Step S122: Distribute the approved NFT video ringback tones to preset channels to display the NFT video ringback tones.

[0076] Here, the preset channels are music apps or mobile app halls associated with the video ringback tone service platform. After the content of the NFT video ringback tone created by the second user is approved, it is published to preset channels such as music apps or mobile app halls associated with the video ringback tone service platform for display. For example, a digital collectibles sales area is provided on the main interface of the mobile app hall, displaying NFT video ringback tones and prompting users to subscribe as needed.

[0077] Figure 2The following is a schematic diagram of an optional process for setting a video ringback tone according to an embodiment of this application, such as... Figure 2 As shown, the method includes the following steps S210 to S250:

[0078] Step S210: In response to receiving a purchase request from the first user for the digital collectible, the first smart contract interface is invoked to realize the transfer of rights and interests of the digital collectible and its corresponding digital twin.

[0079] Here, the digital collectibles and their corresponding digital twins are obtained by creating and distributing the source files of the digital collectibles based on IP copyright.

[0080] Step S220: In response to receiving a secondary creation operation from the second user on the digital twin, an NFT video ringback tone is obtained.

[0081] Here, the digital twin is authorized by the first user.

[0082] Step S230: Display the NFT video ringback tone for third-party users to order and set.

[0083] Here, steps S210 to S230 correspond to steps S110 to S130, respectively. In practice, the specific implementation of steps S110 to S130 can be referred to.

[0084] Step S240: Receive and record the subscription request from the third user for the NFT video ringback tone, and obtain the user subscription record.

[0085] Here, the third user is an internet user, who can be the same as the first or second user, or another user. In some embodiments, the third user who has activated the video ringback tone function directly subscribes to NFT video ringback tones on a per-transaction basis through a third-party payment platform; in other embodiments, the third user who has not activated the video ringback tone function activates the video ringback tone function for free through the general interface provided by the video ringback tone service platform, and then subscribes to NFT video ringback tones.

[0086] In some implementations, after displaying the NFT video ringback tone, the third user previews the NFT video ringback tone published by the second user and completes a pay-per-use subscription for a specific NFT video ringback tone according to the prompts. In response to the successful subscription of the NFT video ringback tone, the video ringback tone service platform records each subscription information to form a user subscription record.

[0087] The user subscription record may include the identifier of the third user, the identifier of the creator of the subscribed NFT video ringtone (i.e., the second user), and the corresponding digital twin, etc. It may also include the digital twin being associated with the corresponding digital collectible and the identifier of the purchaser of the collectible (i.e., the first user).

[0088] Step S250: Distribute fees according to the user subscription records and the preset revenue sharing ratio.

[0089] As described above, user subscription records can be used to further identify various participants in the NFT video ringback tone scheme, such as the first user, second user, third user, digital collectible copyright holder, and video ringback tone operator. Therefore, after an NFT video ringback tone is subscribed to, the subscription revenue will be distributed among these participants according to a pre-set revenue-sharing ratio.

[0090] The preset revenue sharing ratio is dynamically determined based on business rules to ensure its rationality. For example, if the value of the digital collectible itself is far higher than the value of the video ringback tone, the revenue sharing ratio of the first user who purchases the digital collectible should be greater than that of the second user who creates derivative works based on the digital twin; if the number of NFT video ringback tone subscriptions exceeds a certain amount, the revenue sharing ratio of the second user should be increased.

[0091] In some implementations, the fees for each participant in the NFT video ringback tone are shared as follows: A second smart contract interface is invoked to obtain the current total number of NFT video ringback tones; based at least on the user subscription records, the multiple participants in the NFT video ringback tone and the single subscription fee for the NFT video ringback tone are determined; and the total share for each participant is determined based on the preset sharing ratio, the single subscription fee for the NFT video ringback tone, and the current number of subscriptions. The second smart contract interface can be a `totalTwinOrders` interface, used to return the total number of NFT video ringback tone subscriptions.

[0092] In some implementations, the fee sharing among the various participants in an NFT video ringback tone is determined using the following formula (1):

[0093] S i =W i *Num orders *M Formula (1);

[0094] Among them, S i Num represents the total amount to be shared by the participants. orders M represents the total number of NFT video ringback tones ordered, M represents the cost per order for the video ringback tones, and W represents the total cost per order for the video ringback tones. i This refers to the profit-sharing ratio among the participants.

[0095] In this embodiment, after displaying the NFT video ringback tone, the system receives and records subscription requests from third users for specific NFT video ringback tones, thus obtaining user subscription records. Then, it calls the smart contract to query the current total number of NFT video ringback tone subscriptions and distributes fees according to the user subscription records and a preset revenue-sharing ratio. This achieves a win-win model for all participating parties, including copyright holders, digital collectible buyers, video ringback tone service operators, and creators, promoting the development of video ringback tones and NFT businesses.

[0096] Figure 3 The following is a schematic diagram of an optional process for setting a video ringback tone according to an embodiment of this application, such as... Figure 3 As shown, the method includes the following steps S310 to S360:

[0097] Step S310: Obtain IP copyright authorization for the digital collection.

[0098] Here, the video ringback tone service operator collaborates with the copyright holder on IP rights, obtaining the right to develop digital collections based on the IP and to create and sell secondary video ringback tones based on digital collection materials.

[0099] Step S320: Create the source files and corresponding digital twins of the digital collectibles based on the IP copyright.

[0100] Here, the source files of the digital collectibles are used for copyright registration and digital asset rights certification, while the corresponding digital twins, i.e., the twin files, are used for video ringback tone customization and subscription, thus preventing the theft of source files and effectively protecting IP copyright.

[0101] In some implementations, source files for different digital collectibles are created by combining preset content generation elements; the preset content generation elements include at least the following: video resolution, headdress, hairstyle, background, and unique numerical identification; based on the original content of the digital collectibles, digital content watermarking and / or low-resolution processing are performed to obtain digital twins corresponding to the digital collectibles. Figure 4 As shown, for digital collectible 41, the original resolution is 1080P. The image is converted from 1080P to 720P using a low-resolution ringtone and used as the digital twin 42 corresponding to digital collectible 41. That is, digital twin processing is performed on the original digital collectible to obtain the corresponding digital twin, which is beneficial for the subsequent creation of digital twins, avoids the theft of source files, and protects IP copyright.

[0102] Step S330: The source files of the digital collectible and the creation and issuance of the digital twin are completed through the third smart contract interface.

[0103] Here, the third smart contract interface is an NFT contract interface such as the mint interface, used for minting NFTs. After creating the source files and corresponding digital twins of the digital collectibles in the previous step, they are uploaded to the digital collectibles business platform. The minter, minting time, source file attribute information (resolution, headdress, hairstyle, background, and other content production elements), and twin file attribute information (same source file) are encapsulated, and the mint interface is called to complete the minting and issuance of the collectibles.

[0104] It's worth noting that video ringback tone operators provide a professional online platform for creating digital collectibles. This platform serves as a trusted certificate system for digital collectibles on the blockchain, leveraging blockchain and AI (Artificial Intelligence) technologies, along with financial-grade encryption algorithms and cloud computing capabilities. It assigns digital identities and generates data keys to creators and assigns a digital ID to each digital collectible. Only authorized users own the digital copyright of that collectible. This solves the problem of verifying the identity of digital resources and realizes the assetization of digital resources.

[0105] Step S340: In response to receiving the purchase request for the digital collectible from the first user, the first smart contract interface is invoked to realize the transfer of rights and interests of the digital collectible and the corresponding digital twin.

[0106] Here, the digital collectibles and their corresponding digital twins are obtained by creating and distributing the source files of the digital collectibles based on IP copyright.

[0107] Step S350: In response to receiving a secondary creation operation from the second user on the digital twin, an NFT video ringback tone is obtained.

[0108] Here, the digital twin is authorized by the first user.

[0109] Step S360: Display the NFT video ringback tone for third-party users to order and set.

[0110] Steps S340 to S360 correspond to steps S110 to S130, respectively. When implementing these steps, you can refer to the specific implementation methods of steps S110 to S130.

[0111] In this embodiment, the IP copyright authorization of the digital collectible is first obtained; then, source files and corresponding digital twins of the digital collectible based on the IP copyright are created; next, the creation and issuance of the source files and digital twins of the digital collectible are completed through a third smart contract interface; finally, the step of receiving the purchase request from the first user for the digital collectible is executed. Thus, this embodiment realizes the NFT on-chain creation of corresponding digital twins based on IP copyright for the original digital collectible, and then, through the purchase by the first user and authorization of a second user to further create a new NFT video ringback tone, a new NFT video ringback tone is obtained, thereby expanding the application of NFT technology in video ringback tone scenarios.

[0112] The following describes the method for setting up the video ringback tone using a specific embodiment. However, it is worth noting that this specific embodiment is only for better illustrating this application and does not constitute an improper limitation of this application.

[0113] Based on the bottlenecks in innovative video ringback tone business models and the limitations on the external display and circulation of NFTs, this application proposes a video ringback tone setting method: utilizing the characteristics of video ringback tone promotional media, it enables users to display their digital collections as video ringback tones; combining NFTs with digital content rights proof, it allows for UGC secondary creation and release of video ringback tones based on NFT source files, achieving a win-win model for copyright holders, NFT buyers, video ringback tone and NFT capability operators, and UGC creators, thus promoting the development of video ringback tones and NFT businesses.

[0114] Figure 5A A system block diagram of a video ringback tone setting method provided in this application embodiment is shown below. Figure 5A As shown, the system block diagram includes a video ringback tone access module 51, an NFT capability module 52, a video ringback tone DIY creation module 53, a video ringback tone distribution management module 54, a video ringback tone management and display module 55, and a settlement and billing module 56, wherein:

[0115] The video ringback tone access module 51 is responsible for internet user login access, and is integrated with the NFT capability module 52, the video ringback tone DIY creation module 53, the video ringback tone distribution management module 54, the video ringback tone management and display module 55, and the settlement and billing module 56.

[0116] NFT Capability Module 52, namely the Digital Collectibles Business Platform, is responsible for the design and deployment of NFT smart contracts, as well as the minting and issuance of digital collectibles, asset transfer, and order records of NFT video ringtones based on digital twins. It provides services through APIs (Application Programming Interfaces) or SDKs (Software Development Kits).

[0117] The Video Ringback Tone DIY Module 53 provides the ability to independently create templates, special effects, and other production capabilities, making it easier for UGC creators, i.e., second users, to create NFT video ringback tones based on digital twins.

[0118] The video ringback tone distribution management module 54 is responsible for reviewing NFT video ringback tones created by UGC creators and distributing the NFT video ringback tones to the corresponding channels.

[0119] The video ringback tone management and display module 55 provides internet users with functions such as one-click NFT video ringback tone setup, call display, and video ringback tone function activation.

[0120] The billing and settlement module 56 is responsible for providing capabilities such as paid ordering, recording, and revenue sharing rule design.

[0121] Figure 5B A logic flowchart of a video ringback tone setting method provided in this application embodiment is shown below. Figure 5B As shown, the main steps include S501 to S508:

[0122] Step S501: The video ringback tone service operator cooperates with the copyright holder on IP copyright, and obtains the copyright holder's rights to develop digital collections based on IP and to create and sell secondary video ringback tones based on digital collection materials.

[0123] Step S502: The video ringback tone service operator creates and sells NFT digital collectibles and corresponding digital twins based on IP copyrights.

[0124] Here, the digital twin is the unique digital replica of the digital collectible, which is obtained by processing the original content of the digital collectible with digital content watermarking, low-resolution, and other methods.

[0125] In implementation, the video ringback tone service operator first combines content production elements such as video resolution (1080P), headwear, hairstyle, background, and unique digital number to create different digital collection source files and corresponding digital twins. The source files are used for copyright registration and digital asset rights certification, while the digital twins are used for video ringback tone secondary creation and subscription, thus preventing the theft of source files and effectively protecting IP copyright.

[0126] Then, upload the source files of the digital collectible and the corresponding digital twin to the NFT capability module, and encapsulate the digital collectible's creator, creation time, source file attribute information (content production elements such as resolution, headdress, hairstyle, and background), and twin file attribute information (same source file). Call the mint interface of the NFT smart contract to complete the creation and issuance of the collectible.

[0127] In step S503, the purchaser of the collection obtains ownership of the digital collection and simultaneously acquires the right to create content for the corresponding digital twin.

[0128] Here, the collector purchaser (equivalent to the first user) acquires the digital collectible through the service platform provided by the video ringback tone service operator, and completes the transfer of rights and interests of the digital collectible by calling the safeTransferFrom interface of the smart contract.

[0129] Step S504: The video ringback tone service platform records the association between the user and the digital collectibles and digital twins (uid, NFT-Token-ID, twin-ID).

[0130] In step S505, the creator performs secondary content creation on the digital twin and creates an NFT video ringback tone using the video ringback tone production capabilities provided by the video ringback tone service platform.

[0131] Here, as Figure 5C As shown, assuming the UGC creator's terminal has a video ringback tone service platform installed, after logging in, the UGC creator (equivalent to a second user) enters the UGC secondary creation editing page 531. This editing page provides video ringback tone production capabilities such as template processing, special effects generation, and BGM (Background Music) dubbing. Specific effects include "out-of-body experience," "shaking," "gag," "hallucination," and "water ripples." For a video, users can drag to select specific video frames to add features, long-press after selecting the location, and the real-time effect is displayed in the middle area of ​​the editing page 531. Simultaneously, users can call the digital collection engine SDK / API to query the source file information of digital collections and perform secondary creation based on the source file information.

[0132] Step S506: After the digital twin product's secondary video ringback tone is distributed, the content is displayed through the video ringback tone service platform for subscription.

[0133] Here, the video ringback tone distribution management module reviews the NFT video ringback tones created by creators and distributes them to music apps, mobile app stores, etc. provided by the video ringback tone operators, and allows paid subscriptions.

[0134] Step S507: Internet users can subscribe to NFT video ringback tones on a per-purchase basis through third-party payment. For Internet users without video ringback tone functionality, a backend interface is provided to enable it directly and free of charge.

[0135] The digital collection capability module calls the intelligent cooperation interface emitOrder to record the number of user subscriptions. The video ringback tone service platform records user order records as the basis for revenue sharing and settlement.

[0136] Step S508: Call the smart contract totalTwinOrders interface to obtain the current number of orders. After the video ringback tone subscription revenue is distributed according to the business rules, it is divided among the participating parties, for example, by the aforementioned formula (1).

[0137] The key smart contracts involved in the embodiments of this application are shown in Table 1:

[0138] Table 1 Key NFT Smart Contract Interfaces

[0139]

[0140] The embodiments of this application have at least the following technical effects: through business scenario design, the characteristics of video ringback tones as a promotional medium are utilized to enable users to display their digital collections to the outside world; through NFT smart contract design, a win-win model is achieved for copyright holders, NFT buyers, video ringback tones and NFT capability operators, and UGC creators; through the design of digital collection source files and twin files, the source files are used for copyright registration and digital asset rights proof, while the twin files are used for video ringback tones re-transmission and subscription, thus preventing the theft of source files and effectively protecting IP copyright.

[0141] It should be noted that, in implementation, the aforementioned collector purchasers can correspond to the first user in the aforementioned embodiments, the UGC creators or creators can correspond to the second user in the aforementioned embodiments, and the Internet users can correspond to the third user in the aforementioned embodiments.

[0142] Based on the foregoing embodiments, this application provides a video ringback tone setting device. The device includes various modules and sub-modules included in each module, which can be implemented by a processor in a computer device; of course, it can also be implemented by specific logic circuits. In the implementation process, the processor can be a central processing unit (CPU), a microprocessor unit (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA), etc.

[0143] Figure 6 This is a schematic diagram of the structural composition of a video ringback tone setting device provided in an embodiment of this application, as shown below. Figure 6 As shown, the video ringback tone setting device 600 includes: a rights transfer module 610, a secondary creation module 620, and a management and display module 630, wherein:

[0144] The rights transfer module 610 is used to respond to receiving a purchase request from a first user for digital collectibles by calling a first smart contract interface to realize the rights transfer of the digital collectibles and corresponding digital twins; wherein, the digital collectibles and corresponding digital twins are obtained by casting and issuing the source files of the digital collectibles based on IP copyright;

[0145] The secondary creation module 620 is used to respond to receiving a secondary creation operation from a second user on the digital twin to obtain an NFT video ringback tone; wherein the digital twin is authorized by the first user;

[0146] The management display module 630 is used to display the NFT video ringback tone for third-party users to order and set.

[0147] In some possible embodiments, the rights transfer module 610 includes: a recording submodule, used to record the association between the first user, the digital collectible, and the digital twin in response to receiving a purchase request from the first user for the digital collectible; and an on-chain submodule, used to call the first smart contract interface to process the association on the blockchain, so as to realize the rights transfer of the digital collectible and the corresponding digital twin.

[0148] In some possible embodiments, the device 600 further includes: a subscription record module, configured to receive and record the subscription request of the third user for the NFT video ringback tone, thereby obtaining a user subscription record; and a fee settlement module, configured to perform fee sharing based on the user subscription record and a preset sharing ratio; wherein the preset sharing ratio is dynamically determined based on business rules.

[0149] In some possible embodiments, the fee settlement module includes: an acquisition submodule, configured to call a second smart contract interface to obtain the current total number of subscriptions for the NFT video ringback tone; a first determination submodule, configured to determine, at least based on the user subscription records, multiple participants in the NFT video ringback tone and the single subscription fee for the NFT video ringback tone; and a second determination submodule, configured to determine the total share for each participant based on the preset revenue sharing ratio, the single subscription fee for the NFT video ringback tone, and the current number of subscriptions.

[0150] In some possible embodiments, the device 600 further includes: a copyright cooperation module for obtaining IP copyright authorization for the digital collectible; a production module for producing source files and corresponding digital twins of the digital collectible based on the IP copyright; and a casting module for completing the casting and distribution of the source files and digital twins of the digital collectible through a third smart contract interface.

[0151] In some possible embodiments, the production module includes: a production submodule, used to combine and produce different source files of the digital collectibles according to preset content generation elements; the preset content generation elements include at least the following items: video resolution, headdress, hairstyle, background, and unique digital number; and a generation submodule, used to perform digital content watermarking and / or low-resolution processing on the original content of the digital collectibles to obtain digital twins corresponding to the digital collectibles.

[0152] In some possible embodiments, the device 600 further includes: a prompting module for prompting the second user to participate in the content secondary creation process of the digital twin through an authorization prompting interface; and an editing module for displaying an editing interface in response to the second user's confirmation of participation, allowing the second user to perform secondary creation operations on the digital twin; wherein the editing interface provides self-made templates and / or special effects, and is equipped with preset controls, which, when triggered, call a fourth smart contract interface to query the attribute information of the source file of the digital collectible.

[0153] In some possible embodiments, the device 600 further includes: an approval module for approving the NFT video ringback tone; and a distribution module for distributing the approved NFT video ringback tone to a preset channel to display the NFT video ringback tone.

[0154] The descriptions of the apparatus embodiments above are similar to those of the method embodiments above, and have similar beneficial effects. In some embodiments, the functions or modules included in the apparatus provided in this disclosure can be used to perform the methods described in the method embodiments above. For technical details not disclosed in the apparatus embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0155] It should be noted that, in the embodiments of this application, if the above-described video ringback tone setting method is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, or the part that contributes to the related technology, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, mobile hard drives, read-only memory (ROM), magnetic disks, or optical disks. Thus, the embodiments of this application are not limited to any specific hardware, software, or firmware, or any combination of hardware, software, and firmware.

[0156] This application provides a computer device including a memory and a processor. The memory stores a computer program that can run on the processor. When the processor executes the program, it implements some or all of the steps in the above-described method.

[0157] This application provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements some or all of the steps in the above-described method. The computer-readable storage medium can be transient or non-transient.

[0158] This application provides a computer program including computer-readable code, wherein when the computer-readable code is executed in a computer device, a processor in the computer device performs some or all of the steps in the above-described method.

[0159] This application provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program. When the computer program is read and executed by a computer, it implements some or all of the steps in the above-described method. This computer program product can be implemented specifically through hardware, software, or a combination thereof. In some embodiments, the computer program product is specifically embodied as a computer storage medium; in other embodiments, the computer program product is specifically embodied as a software product, such as a software development kit (SDK), etc.

[0160] It should be noted that the descriptions of the various embodiments above tend to emphasize the differences between them, while their similarities or commonalities can be referred to interchangeably. The descriptions of the above embodiments of the device, storage medium, computer program, and computer program product are similar to the descriptions of the above method embodiments and have similar beneficial effects. For technical details not disclosed in the embodiments of the device, storage medium, computer program, and computer program product of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0161] It should be noted that, Figure 7 This is a schematic diagram of a hardware entity of a computer device in an embodiment of this application, such as... Figure 7 As shown, the hardware entity of the computer device 700 includes: a processor 701, a communication interface 702, and a memory 703, wherein:

[0162] Processor 701 typically controls the overall operation of computer device 700.

[0163] Communication interface 702 enables computer devices to communicate with other terminals or servers over a network.

[0164] The memory 703 is configured to store instructions and applications executable by the processor 701, and can also cache data to be processed or already processed (e.g., image data, audio data, voice communication data, and video communication data) in the processor 701 and various modules in the computer device 700. It can be implemented using flash memory or random access memory (RAM). Data transfer between the processor 701, the communication interface 702, and the memory 703 can be performed via bus 704.

[0165] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence numbers of the above steps / processes do not imply a sequential order of execution; the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above embodiments of this application are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0166] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0167] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0168] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0169] In addition, each functional unit in the various embodiments of this application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0170] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media that can store program code, such as mobile storage devices, read-only memory (ROM), magnetic disks, or optical disks.

[0171] Alternatively, if the integrated units described above are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence or the part that contributes to related technologies, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROM, magnetic disks, or optical disks.

[0172] The above description is merely an embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A method for setting up video ringback tones, characterized in that, The method, applied to a video ringback tone service platform, includes: In response to receiving a purchase request from a first user for a digital collectible, the first smart contract interface is invoked to transfer the rights and interests of the digital collectible and its corresponding digital twin; wherein, the digital collectible and its corresponding digital twin are obtained by casting and issuing the source files of the digital collectible based on intellectual property rights (IP copyright); The authorization prompt interface prompts the second user to participate in the content secondary creation process of the digital twin; the digital twin is obtained by digitally watermarking and / or low-resolution processing based on the original content of the digital collection; In response to the second user's confirmation of participation, an editing interface is displayed for the second user to perform secondary creation operations on the digital twin; wherein, the editing interface provides self-made templates and / or special effects, and is equipped with preset controls, and when the preset controls are triggered, the fourth smart contract interface is invoked to query the attribute information of the source file of the digital collectible; the attribute information of the source file includes at least the following items: resolution, character headdress, hairstyle, and background; In response to receiving a secondary creation operation from a second user on the digital twin, a non-fungible token (NFT) video ringback tone is obtained; wherein the digital twin is authorized by the first user; The NFT video ringback tones are displayed for third-party users to order and set.

2. The method according to claim 1, characterized in that, The step of responding to receiving a purchase request from a first user for a digital collectible and invoking a first smart contract interface to transfer the rights and interests of the digital collectible and its corresponding digital twin includes: In response to receiving a purchase request from a first user for a digital collectible, the association between the first user, the digital collectible, and the digital twin is recorded; The first smart contract interface is invoked to process the association on the blockchain, thereby realizing the transfer of rights and interests of the digital collectibles and their corresponding digital twins.

3. The method according to claim 1, characterized in that, After displaying the NFT video ringback tone, the method further includes: Receive and record the subscription request from the third user for the NFT video ringback tone, and obtain the user subscription record; Fee sharing is conducted based on the user subscription records and a preset revenue sharing ratio; wherein, the preset revenue sharing ratio is dynamically determined based on business rules.

4. The method according to claim 3, characterized in that, The process of sharing fees based on the user subscription records and a preset revenue sharing ratio includes: Call the second smart contract interface to obtain the current total number of subscriptions for the NFT video ringback tone; Based at least on the user subscription records, determine the multiple participants in the NFT video ringback tone and the single subscription fee for the NFT video ringback tone; The total revenue share for each participant is determined based on the preset revenue sharing ratio, the single order fee for the NFT video ringback tone, and the current total number of orders.

5. The method according to any one of claims 1 to 4, characterized in that, Before receiving the purchase request from the first user for the digital collectible, the method includes: Obtain IP copyright authorization for the aforementioned digital collections; Create the source files and corresponding digital twins of the digital collectibles based on the IP copyright; The source files of the digital collectibles and the creation and issuance of the digital twins are completed through a third smart contract interface.

6. The method according to claim 5, characterized in that, The creation of the source files and corresponding digital twins for the digital collectibles based on the IP copyright includes: Based on preset content generation elements, different source files for the digital collectibles are created by combining them; the preset content generation elements include at least the following items: video resolution, headdress, hairstyle, background, and unique number; Based on the original content of the digital artifact, digital content watermarking and / or low-resolution processing are performed to obtain a digital twin of the digital artifact.

7. The method according to any one of claims 1 to 4, characterized in that, After obtaining the NFT video ringback tone, the method further includes: Review the aforementioned NFT video ringback tone; The approved NFT video ringback tones will be distributed to preset channels to display the NFT video ringback tones.

8. A device for setting video ringback tones, characterized in that, The device includes: The rights transfer module is used to respond to receiving a purchase request from a first user for a digital collectible by calling a first smart contract interface to realize the rights transfer of the digital collectible and its corresponding digital twin; wherein, the digital collectible and its corresponding digital twin are obtained by casting and issuing the source files of the digital collectible based on IP copyright; The prompting module is used to prompt the second user to participate in the content secondary creation process of the digital twin through an authorization prompting interface; the digital twin is obtained by digitally watermarking and / or low-resolution processing based on the original content of the digital collection; The editing module is used to respond to the second user's confirmation of participation by displaying an editing interface for the second user to perform secondary creation operations on the digital twin; wherein, the editing interface provides self-made templates and / or special effects, and is equipped with preset controls, and when the preset controls are triggered, the fourth smart contract interface is invoked to query the attribute information of the source file of the digital collectible; the attribute information of the source file includes at least the following items: resolution, character headdress, hairstyle, and background; The secondary creation module is used to respond to receiving a secondary creation operation from a second user on the digital twin to obtain an NFT video ringback tone; wherein the digital twin is authorized by the first user; The management and display module is used to display the NFT video ringback tones for third-party users to order and set.

9. A computer device comprising a memory and a processor, the memory storing a computer program executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 7.

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