CN114066456B - ERC 1155-based cross-chain NFT transfer and settlement system - Google Patents
ERC 1155-based cross-chain NFT transfer and settlement system Download PDFInfo
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Abstract
The invention provides a cross-chain NFT transfer and settlement system based on ERC1155, which comprises a settlement module, an access module, a contract auditing module, an NFT information storage module and a transfer processing module, wherein the access module is used for butting users and chains where the users are located, the contract auditing module is used for auditing whether the chains where the users are located are based on the ERC1155 contract or not, the transfer processing module is used for receiving NFT transfer data packets sent by the users and processing the NFT transfer data packets, the NFT information storage module is used for storing storage information addresses of the NFT, and the settlement module is used for making final settlement records for the completed NFT transfer; the system can realize the transfer of the NFT in different block chains, does not relate to the content of the NFT in the transfer process, and only verifies the legality of the NFT transfer and records the block address for recording the NFT transfer, thereby simplifying the flow without weakening the effect and improving the transfer efficiency of the NFT.
Description
Technical Field
The present disclosure relates generally to the field of NFT technology, and more particularly to an ERC 1155-based cross-chain NFT transfer and settlement system.
Background
NFT refers to non-homogeneous tokens, which are unique cryptocurrency tokens representing digital assets and can be purchased and sold, most of NFTs currently prove the identity of their owner in a block chain based on ERC1155 smart contracts, and when NFTs are transferred in different block chains, the process is complicated and inefficient, and a settlement system capable of efficiently processing NFT transfer is needed to accelerate the trafficability of NFTs.
Now, many NFT transfer systems have been developed, and through extensive search and reference, it is found that the existing transfer systems are disclosed as KR101733599B1, KR101837169B1, CN111639924B and KR101826372B1, and the method comprises the following steps: converting the cargo entity into token information; creating four protocols in the intelligent contract; the four protocols comprise an auction establishment protocol, a payment guarantee protocol, a bidding protocol and a delivery guarantee protocol; creating an auction instance of a seller by creating an auction protocol, storing token information in a block chain, and locking the token information in the block chain by adopting a delivery guarantee protocol; storing the asset entities of the bidders in a payment guarantee protocol as a deposit; starting an auction instance in the block chain, completing an auction process by adopting an auction protocol, storing a bid record, and copying the bid record to each node in the block chain; and after the bidding process is finished, paying the account of the seller by using the auction establishment protocol, and executing the delivery process through the delivery guarantee protocol. However, the system is mainly used for processing the auction of the NFT, the number of the NFT designed by the system is not large, the efficiency is low, and the system is not suitable for processing the large-scale NFT transfer.
Disclosure of Invention
The invention aims to provide a cross-chain NFT transfer and settlement system based on ERC1155, aiming at the existing defects.
The invention adopts the following technical scheme:
a cross-chain NFT transfer and settlement system based on ERC1155 comprises a settlement module, an access module, a contract auditing module, an NFT information storage module and a transfer processing module, wherein the access module is used for interfacing a user and a chain where the user is located, the contract auditing module is used for auditing whether the chain where the user is located is based on an ERC1155 contract, the transfer processing module is used for receiving an NFT transfer data packet sent by the user and processing the NFT transfer data packet, the NFT information storage module is used for storing a storage information address of the NFT, and the settlement module is used for making a final settlement record for the completed NFT transfer;
the transfer processing module verifies all NFT information in the NFT transfer data packet, sends the NFT transfer information to a chain where a user is located after the verification is passed, the chain where the user is located generates a block according to the NFT transfer information to complete NFT transfer, a block address generated by the chain where the user is located is sent to the settlement module, and the settlement module records the block address;
the NFT transfer data packet comprises a packet header and packet contents, wherein the packet header is used for matching and resource allocation, the NFT transfer data packets with the same packet header form an NFT transaction packet, and the packet contents are used for recording NFT information;
the header data comprises four data segments, wherein the first data segment represents the number of users involved in NFT transfer, the second data segment represents the number of NFT designed for NFT transfer, the third data segment represents time limit requirements, and the fourth data segment represents passwords of both NFT transfer parties;
the transfer processing module calculates a priority index of the NFT transaction packet, and the calculation formula of the priority index Y is as follows:
where n1 denotes a value of a first data segment of the packet header, n2 denotes a value of a second data segment of the packet header, n3 denotes a value of a third data segment of the packet header, TnowT0 represents a time base for a value corresponding to the current time, and k is an adjustment coefficient;
the total number of resources required by the transfer processing module for verifying the NFT information is Nz, the transfer processing module distributes the total number of resources according to a priority index, and the number N of the resources distributed by the ith transaction packetiComprises the following steps:
wherein, YiIndicating the priority index of the ith transaction packet, n being the number of existing paired transaction packets, Num (Y)j<Yi) Indicating a priority index less than YiThe number of transaction packages of (1);
further, the packet content of the NFT transfer packet includes a plurality of NFT information pieces, and each NFT information piece includes an NFT _ ID, NFT owner information, NFT transfer object information, and an NFT storage information address;
further, the migration processing module includes an information strip processing unit, an NFT storage verification unit, an NFT owner verification unit, and an NFT migration output unit, where the NFT storage verification unit obtains an NFT storage information address from the information strip processing unit and verifies corresponding NFT content, the NFT owner verification unit obtains a user verification packet classified by NFT owner information from the information strip processing unit and verifies whether a user owns a corresponding NFT, and a verification resource of the migration processing module is allocated to the NFT storage verification unit and the NFT owner verification unit;
further, the NFT transfer output unit obtains, from the information strip processing unit, an NFT reception packet classified by NFT transfer object information, and after the NFT storage verification unit and the NFT owner verification unit complete verification of all NFT information strips in one transaction packet, the NFT transfer output unit combines the NFT reception packet and the user verification packet and sends the combined NFT reception packet and user verification packet to a block chain of a corresponding user;
further, the NFT information storage module is further configured to store a key of the NFT, where the key is used to access a storage address of the NFT, the NFT information storage module opens an authority to a new owner of the NFT after completing a transaction of the NFT, and the new owner of the NFT obtains the storage address and the key of the NFT in the NFT information storage module.
The beneficial effects obtained by the invention are as follows:
the system does not relate to the processing of NFT content and the recording of transaction, can greatly reduce unnecessary operation and lay a foundation for improving the transfer efficiency of the NFT, and mainly verifies the transfer legality of the NFT, and the NFT can be verified in batches by classifying according to the original owner of the NFT in the verification process, so that the verification efficiency is improved.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
FIG. 1 is a schematic view of the overall structural framework of the present invention;
FIG. 2 is a schematic diagram of the NFT migration settlement process of the present invention;
FIG. 3 is a block diagram of a transfer module architecture according to the present invention;
FIG. 4 is a schematic diagram of user authentication packet classification according to the present invention;
fig. 5 is a diagram illustrating classification of NFT received packets according to the present invention.
Detailed Description
The following is a description of embodiments of the present invention with reference to specific embodiments, and those skilled in the art will understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
The first embodiment.
The embodiment provides a cross-chain NFT transfer and settlement system based on ERC1155, which, with reference to fig. 1, includes a settlement module, an access module, a contract audit module, an NFT information storage module, and a transfer processing module, where the access module is configured to interface a user and a chain where the user is located, the contract audit module is configured to audit whether the chain where the user is located is based on an ERC1155 contract, the transfer processing module is configured to receive an NFT transfer data packet sent by the user and process the NFT transfer data packet, the NFT information storage module is configured to store a storage information address of an NFT, and the settlement module is configured to make a final settlement record for completed NFT transfer;
the transfer processing module verifies all NFT information in the NFT transfer data packet, sends the NFT transfer information to a chain where a user is located after the verification is passed, the chain where the user is located generates a block according to the NFT transfer information to complete NFT transfer, a block address generated by the chain where the user is located is sent to the settlement module, and the settlement module records the block address;
the NFT transfer data packet comprises a packet header and packet contents, wherein the packet header is used for matching and resource allocation, the NFT transfer data packets with the same packet header form an NFT transaction packet, and the packet contents are used for recording NFT information;
the header data comprises four data segments, wherein the first data segment represents the number of users involved in NFT transfer, the second data segment represents the number of NFT designed for NFT transfer, the third data segment represents time limit requirements, and the fourth data segment represents passwords of both NFT transfer parties;
the transfer processing module calculates a priority index of the NFT transaction packet, and the calculation formula of the priority index Y is as follows:
where n1 denotes a value of a first data segment of the packet header, n2 denotes a value of a second data segment of the packet header, n3 denotes a value of a third data segment of the packet header, TnowT0 represents a time base for a value corresponding to the current time, and k is an adjustment coefficient;
the total number of resources required by the transfer processing module for verifying the NFT information is Nz, the transfer processing module distributes the total number of resources according to a priority index, and the number N of the resources distributed by the ith transaction packetiComprises the following steps:
wherein, YiIndicating the priority index of the ith transaction packet, n being the number of existing paired transaction packets, Num (Y)j<Yi) Indicating a priority index less than YiThe number of transaction packages of (1);
the packet content of the NFT transfer data packet comprises a plurality of NFT information pieces, and each NFT information piece comprises an NFT _ ID, NFT owner information, NFT transfer object information and an NFT storage information address;
the transfer processing module comprises an information strip processing unit, an NFT storage verification unit, an NFT owner verification unit and an NFT transfer output unit, wherein the NFT storage verification unit acquires an NFT storage information address from the information strip processing unit and verifies corresponding NFT content, the NFT owner verification unit acquires a user verification packet classified by NFT owner information from the information strip processing unit and verifies whether a user owns a corresponding NFT, and verification resources of the transfer processing module are allocated to the NFT storage verification unit and the NFT owner verification unit;
the NFT transfer output unit acquires, from the information strip processing unit, an NFT reception packet classified by NFT transfer object information, and after the NFT storage verification unit and the NFT owner verification unit complete verification of all NFT information strips in one transaction packet, the NFT transfer output unit combines the NFT reception packet and the user verification packet and transmits the combined NFT reception packet and user verification packet to a block chain of a corresponding user;
the NFT information storage module is further configured to store a key of the NFT, where the key is used to access a storage address of the NFT, the NFT information storage module opens an authority to a new owner of the NFT after completing a transaction of the NFT, and the new owner of the NFT obtains the storage address and the key of the NFT in the NFT information storage module.
Example two.
The embodiment includes the whole content of the first embodiment, and provides a cross-chain NFT transfer and settlement system based on ERC1155, which includes a settlement module, an access module, a contract auditing module, an NFT information storage module and a transfer processing module, where the access module is configured to complete the docking of chains where both NFT transfer parties are located, the contract auditing module is configured to audit a contract of the access chain, the transfer processing module is configured to receive and process an NFT transfer request, the NFT information storage module is configured to store a storage information address of an NFT, and the settlement module is configured to record block information of a block where the NFT transfer party is located and where the transfer party is located;
with reference to fig. 2, the NFT transfer and settlement process of the system includes the following steps:
s1, the chain where both sides of NFT transfer are located is butted with the access module;
s2, the NFT transfers the double-direction to submit the copy of the intelligent contract to the system;
s3, the contract auditing module proofreads the intelligent contract copy, judges whether the contract is an ERC1155 contract, if yes, returns auditing passing information, if not, returns auditing failing information, and informs the access module to disconnect with the NFT transfer party which fails to audit;
s4, after the contract passes the audit, the NFT transfer bi-directional sends an NFT transfer data packet to the system;
s5, the transfer processing module performs matching according to the packet header of the NFT transfer data packet, and the matched NFT transfer data packet forms an NFT transaction packet;
s6, the transfer processing module performs information verification on all NFTs in the NFT transaction packet, and sends the storage information address of the NFT to the NFT information storage module for storage after all NFT information verification passes, and simultaneously sends NFT transfer information to a chain where both NFT transfer parties are located;
s7, the chain where both NFT transfer parties are located generates blocks according to the received NFT transfer information for recording, and sends the block addresses of the generated blocks to the settlement module;
s8, the settlement module accesses the corresponding block according to the received block address, and after confirming that the block content conforms to the NFT transfer content, generates a settlement block on a settlement chain on the settlement module, where the settlement block is used to record the block address information of the block generated by the chain where both NFT parties are located;
the NFT transfer data packet comprises a packet header and packet contents, the packet contents comprise a plurality of NFT information strips, the NFT transaction packet comprises information strips, and the contents in the NFT information strips comprise NFT _ ID, NFT owner information, NFT transfer object information and NFT storage information addresses;
the header of the NFT transfer data packet is a series of data, the data comprises four data segments, the first data segment represents the number of users involved in the NFT transfer, the second data segment represents the number of NFTs designed by the NFT transfer, the third data segment represents time limit requirements, the fourth data segment represents passwords of both NFT transfers, and the data segments are connected in a short line separation mode;
when the system needs to process a large number of NFT transfers at the same time, the transfer processing module calculates the priority index of the corresponding NFT transaction packet according to the first three data segments of the packet header, and the transfer processing module allocates the corresponding resource quantity according to the priority index to perform the transfer processing of the NFT;
the calculation formula of the priority index Y is as follows:
where n1 denotes a value of a first data segment of the packet header, n2 denotes a value of a second data segment of the packet header, n3 denotes a value of a third data segment of the packet header, TnowT0 represents a time base for a value corresponding to the current time, and k is an adjustment coefficient;
it should be noted that when the third data segment of the header is set, n3 is much larger than the current time, and if n3 is close to or smaller than the current time, the transition processing module returns the NFT transition packet;
the total amount of the resource quantity of the transfer processing unit is Nz, and the priority index of the matched existing ith NFT transaction packet is YiThat is, the resource quantity allocated to the ith NFT transaction packet is:
where n is the number of existing paired transaction packages, Num (Y)j<Yi) Indicating a priority index less than YiThe number of transaction packages of (1);
it should be noted that the sum of the resource quantities allocated to all the transaction packages calculated through the above process is less than Nz, and the missing part of the resource quantities is used for emergency treatment;
with reference to fig. 3, 4, and 5, the transfer processing module includes an information strip processing unit, an NFT storage verification unit, an NFT owner verification unit, and an NFT transfer output unit, where the information strip processing unit obtains NFT information strips from the NFT transaction packet one by one, and performs three processes, a first process is to classify according to the NFT owner information to obtain a plurality of user verification packets, each user verification packet includes one NFT owner information and a plurality of NFT _ IDs, the user verification packet is sent to the NFT owner verification unit, a second process is to send an NFT storage information address to the NFT storage verification unit, the NFT storage verification unit verifies a storage address of each NFT in real time, a third process is to classify according to the NFT transfer object information to obtain a plurality of NFT reception packets, each NFT reception packet includes one NFT transfer object information and a plurality of NFT _ IDs, the NFT receiving packet is sent to the NFT transfer output unit;
the NFT storage verification unit accesses each received NFT storage information address, and sends an NFT storage verification success instruction to the NFT transfer output unit after confirming that each address stores the content of the corresponding NFT;
the NFT owner verification unit acquires all NFT information from a corresponding block chain according to the NFT owner information in a user verification packet, checks the NFT owner information with each NFT _ ID in the user verification packet, confirms that the NFT owner verification unit owns all NFTs and does not transfer out records, and sends an NFT owner verification success instruction and all user verification packets to the NFT transfer output unit after the NFT owner verification unit completes verification of all user verification packets;
the NFT transfer output unit, after receiving an NFT storage verification success instruction and an NFT owner verification success instruction, merges and format-converts the NFT receiving packet and the user verification packet, where merging refers to merging the NFT transfer object information in the NFT receiving packet and the NFT owner information in the user verification packet when the two packets are the same user, where format conversion refers to converting an NFT _ ID in a packet into a specific transfer-in/transfer-out information description, and a packet after format conversion is referred to as an NFT transfer output packet, and the NFT transfer output unit sends the NFT transfer output packet to a corresponding block chain according to user information in the NFT transfer output packet;
the above process completes the transfer of ownership of the NFT, and the transfer of access right of the NFT is described below;
the actual content of the NFT is stored in a storage space of a third party, the storage space address of the third party is an NFT storage information address, before the transfer of the NFT is completed, only an owner of the NFT owns a key for accessing the actual content of the NFT, during the transfer, the owner of the NFT sends a one-time key to the NFT storage verification unit, and the NFT storage verification unit completes verification by accessing the corresponding NFT content through the one-time key;
in step S8, after the settlement module completes the confirmation of the block content and before the settlement block is generated, the settlement module obtains a key for accessing the NFT actual content from the original owner of all NFTs, changes all keys and then stores the new key in the NFT information storage module, where in the NFT information storage module, the new key is stored in a pair with the storage information address of the NFT and is provided with an independent access right, after the settlement module generates the settlement block, the settlement module opens the access right of the NFT information storage module corresponding to the new owner of the NFT, and the new owner of the NFT obtains the new key and the storage information address of the NFT in the NFT information storage module.
The disclosure is only a preferred embodiment of the invention, and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the invention, and further, the elements thereof can be updated as the technology develops.
Claims (5)
1. A cross-chain NFT transfer and settlement system based on ERC1155 is characterized by comprising a settlement module, an access module, a contract auditing module, an NFT information storage module and a transfer processing module, wherein the access module is used for butting users and chains where the users are located, the contract auditing module is used for auditing whether the chains where the users are located are based on the ERC1155 contract, the transfer processing module is used for receiving NFT transfer data packets sent by the users and processing the NFT transfer data packets, the NFT information storage module is used for storing storage information addresses of NFTs, and the settlement module is used for making final settlement records for the completed NFT transfer;
the transfer processing module verifies all NFT information in the NFT transfer data packet, sends the NFT transfer information to a chain where a user is located after the verification is passed, the chain where the user is located generates a block according to the NFT transfer information to complete NFT transfer, a block address generated by the chain where the user is located is sent to the settlement module, and the settlement module records the block address;
the NFT transfer data packet comprises a packet header and packet contents, wherein the packet header is used for matching and resource allocation, the NFT transfer data packets with the same packet header form an NFT transaction packet, and the packet contents are used for recording NFT information;
the header data comprises four data segments, wherein the first data segment represents the number of users involved in NFT transfer, the second data segment represents the number of NFT designed for NFT transfer, the third data segment represents time limit requirements, and the fourth data segment represents passwords of both NFT transfer parties;
the transfer processing module calculates a priority index of the NFT transaction packet, and the calculation formula of the priority index Y is as follows:
where n1 denotes a value of a first data segment of the packet header, n2 denotes a value of a second data segment of the packet header, and n3 denotes a value of a third data segment of the packet header，TnowT0 represents a time base for a value corresponding to the current time, and k is an adjustment coefficient;
the total number of resources required by the transfer processing module for verifying the NFT information is Nz, the transfer processing module distributes the total number of resources according to a priority index, and the number N of the resources distributed by the ith transaction packetiComprises the following steps:
wherein, YiIndicating the priority index of the ith transaction packet, n being the number of existing paired transaction packets, Num (Y)j<Yi) Indicating a priority index less than YiThe number of transaction packages.
2. The system for trans-chain NFT transfer and settlement based on ERC1155, as set forth in claim 1, wherein a packet content of the NFT transfer packet comprises a number of NFT information pieces, each NFT information piece comprising an NFT _ ID, NFT owner information, NFT transfer object information, and NFT storage information address.
3. The system according to claim 2, wherein the transfer processing module includes an information strip processing unit, an NFT storage verification unit, an NFT owner verification unit, and an NFT transfer output unit, the NFT storage verification unit obtains an NFT storage information address from the information strip processing unit and verifies corresponding NFT content, the NFT owner verification unit obtains a user verification packet classified by NFT owner information from the information strip processing unit and verifies whether a user owns a corresponding NFT, and verification resources of the transfer processing module are allocated to the NFT storage verification unit and the NFT owner verification unit.
4. The system according to claim 3, wherein the NFT transfer output unit obtains, from the strip processing unit, an NFT receive packet classified by NFT transfer target information, and when the NFT storage verification unit and the NFT owner verification unit complete verification of all NFT strips in a transaction packet, the NFT transfer output unit combines the NFT receive packet and the user verification packet and sends the combined NFT receive packet and user verification packet to the blockchain of the corresponding user.
5. The system of claim 4, wherein the NFT information storage module is further configured to store a key of the NFT, the key is configured to access a storage address of the NFT, the NFT information storage module is configured to open a right to a new owner of the NFT after completing a transaction of the NFT, and the new owner of the NFT obtains the storage address of the NFT and the key in the NFT information storage module.
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| PCT/CN2022/100963 WO2023134123A1 (en) | 2022-01-13 | 2022-06-24 | Erc1155-based cross-chain nft transfer and settlement system |
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| CN115018522B (en) * | 2022-08-08 | 2022-10-25 | 环球数科集团有限公司 | NFT (network File transfer protocol) source tracing anti-counterfeiting system based on block chain |
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| WO2023134123A1 (en) | 2023-07-20 |
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