CN114285635A - Intelligent contract-based identity management system for participants on block chain - Google Patents
Intelligent contract-based identity management system for participants on block chain Download PDFInfo
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- CN114285635A CN114285635A CN202111588493.1A CN202111588493A CN114285635A CN 114285635 A CN114285635 A CN 114285635A CN 202111588493 A CN202111588493 A CN 202111588493A CN 114285635 A CN114285635 A CN 114285635A
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Abstract
The invention discloses a block chain upper party identity management system based on an intelligent contract, which comprises: a first block chain; a second block chain; a cross-chain control module disposed between the first blockchain and the second blockchain, configured to: receiving a participation request sent by a target party, and judging whether the participation request is legal or not; when the participation request is determined to be legal, performing feature extraction on the participation request to acquire block chain information requesting participation included in the participation request; and after determining the information of the block chain requesting participation, enabling the target party to participate in the corresponding block chain. The identity of the participating party on the block chain can be effectively managed and verified, and potential safety hazards caused by insecurity of the participating party are avoided.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to an identity management system of a participating party on a block chain based on an intelligent contract.
Background
With the continuous development of the blockchain technology, blockchains are applied to various industries, and in order to ensure efficient operation of the blockchains, a plurality of blockchains may need to cooperate with each other to complete corresponding tasks. This involves cross-chain operation, and it is important to verify the identity of the participants in multiple blockchains effectively. In the prior art, effective identity authentication for participants is lacked, and potential safety hazards such as data loss on a block chain are easily caused.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, the invention aims to provide an intelligent contract-based identity management system of the participants on the block chain, which can effectively manage and verify the identities of the participants on the block chain and avoid potential safety hazards caused by unsafe identities of the participants.
In order to achieve the above object, an embodiment of the present invention provides an identity management system for participating parties on a block chain based on an intelligent contract, including:
a first block chain;
a second block chain;
a cross-chain control module disposed between the first blockchain and the second blockchain, configured to:
receiving a participation request sent by a target party, and judging whether the participation request is legal or not; when the participation request is determined to be legal, performing feature extraction on the participation request to acquire block chain information requesting participation included in the participation request;
and after determining the information of the block chain requesting participation, enabling the target party to participate in the corresponding block chain.
According to some embodiments of the invention, further comprising: a first intelligent contract service is arranged on the first block chain; when determining that the target party participates in the first blockchain, performing identity management on the target party based on the first intelligent contract service, wherein the identity management comprises the following steps:
judging whether a target party participates in a first blockchain for the first time or not based on a first registration node included in the first intelligent contract service; when the target party is determined to participate in the first block chain for the first time, establishing a participation queue and acquiring a participation number of the target party in the first block chain; establishing a participation identifier of a target party on a first block chain according to personal information submitted by the target party;
verifying the participation number and the participation identification respectively based on a first verification node included by the first intelligent contract service, determining the participation identity of the target party when the verification of both nodes is passed, and recording a verification operation log into the first verification node;
and determining the participation right of the target party according to the participation identity of the target party based on a first right management node included in the first intelligent contract service.
According to some embodiments of the present invention, after the target party completes the participation operation on the first blockchain, the method further comprises:
a target direction cross-chain control module sends a cross-chain participation request;
the cross-chain control module receives the cross-chain participation request, judges whether the cross-chain participation request is legal or not, and determines that a target party is a cross-chain participant when the cross-chain participation request is legal;
a second intelligent contract service is arranged on the second block chain, and a second registration node included based on the second intelligent contract service acquires the participation identity of the cross-chain participant on the first block chain and converts the participation identity into an encrypted digital identity;
the encrypted digital identity is decrypted and verified based on a second verification node included in a second intelligent contract, when the decryption and verification are determined to be successful, a random number is generated to serve as a verification number, and the verification number is recorded in the second verification node;
and performing hash operation on the second authority management node based on the second intelligent contract service according to the verification number and the encrypted digital identity, and determining the participation authority of the encrypted digital identity according to the operation result.
According to some embodiments of the present invention, the determining whether the cross-chain participation request is legal includes:
and performing feature extraction on the cross-chain participation request, acquiring a participation operation log of the target party on the first block chain, checking, grading the participation operation log of the target party on the first block chain, and when the grade is determined to be greater than the preset grade, indicating that the cross-chain participation request is legal.
According to some embodiments of the invention, the method further comprises monitoring participation of the target party participating in the corresponding blockchain, including:
acquiring participation behavior data of a target party on a corresponding block chain, splitting the participation behavior data according to a preset rule, and decomposing the participation behavior data into N participation behaviors;
according to the time sequence, every two adjacent participation behaviors in the N participation behaviors are used as a group of target data to obtain N groups of target data;
and respectively calculating the association degrees of two participating behaviors in the N groups of target data, judging whether the association degrees are smaller than a preset association degree, screening out the target data with the association degrees smaller than the preset association degree as abnormal data, and generating alarm prompt information.
According to some embodiments of the present invention, before determining whether the participation request is legal, the method further includes:
analyzing the participation request to obtain a corresponding character string, matching the character string with the virus character string, calculating the matching degree, and sending an alarm prompt when the matching degree is determined to be greater than the preset matching degree;
the matching the character string with the virus character string and calculating the matching degree comprises the following steps:
calculating a semantic distance value d between the character string and the virus character string:
wherein m is the number of semantics contained in the virus character string; n is the number of semantics contained in the character string; a. theiThe ith semantic meaning of the character string; b isjThe j semantic meaning of the virus character string; e is a natural constant;
calculating the matching degree P of the character string and the virus character string according to the semantic distance value of the character string and the virus character string:
wherein x is the number of substrings in the character string; y is the number of sub-strings in the virus character string; z is a radical ofwThe length of the w-th sub-string in the character string; q. q.swIs disease ofThe length of the w-th sub-string in the poison string.
According to some embodiments of the invention, the determining whether the participation request is legal comprises:
acquiring identity identification information of a target party according to the participation request; the identity identification information comprises first identity identification information of the mechanism and second identity identification information of the individual;
and respectively verifying the first identity identification information and the second identity identification information, and when the first identity identification information and the second identity identification information are confirmed to pass verification and are in a corresponding relationship, indicating that the participation request is legal.
According to some embodiments of the present invention, after the target completes the participation operation on the blockchain, the cross-chain control module sends an instruction to make the target exit the corresponding blockchain.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of a system for intelligent contract-based on-blockchain participant identity management, according to one embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, an embodiment of the present invention provides an identity management system for participating parties on a block chain based on an intelligent contract, including:
a first block chain;
a second block chain;
a cross-chain control module disposed between the first blockchain and the second blockchain, configured to:
receiving a participation request sent by a target party, and judging whether the participation request is legal or not; when the participation request is determined to be legal, performing feature extraction on the participation request to acquire block chain information requesting participation included in the participation request;
and after determining the information of the block chain requesting participation, enabling the target party to participate in the corresponding block chain.
The working principle of the technical scheme is as follows: a cross-chain control module disposed between the first blockchain and the second blockchain, configured to: receiving a participation request sent by a target party, and judging whether the participation request is legal or not; when the participation request is determined to be legal, performing feature extraction on the participation request to acquire block chain information requesting participation included in the participation request; and after determining the information of the block chain requesting participation, enabling the target party to participate in the corresponding block chain. For example, when the blockchain information is the first blockchain, the target is transferred to the first blockchain, so that the target can participate in the operation on the first blockchain.
The beneficial effects of the above technical scheme are that: firstly, the validity of a participation request sent by a target party is verified, namely the identity of the target party is verified for the first time before the uplink is not carried out, and after the validity is legal, the target party participates in a corresponding block chain. When facing a system with a plurality of block chains, the participation information of the target party is accurately acquired, the accuracy and the participation rate of the target party participating in the block chains are improved, the identification time is reduced, and the uplink rate is improved. The identity of the participating party on the block chain can be effectively managed and verified, and potential safety hazards caused by insecurity of the participating party are avoided.
According to some embodiments of the invention, further comprising: a first intelligent contract service is arranged on the first block chain; when determining that the target party participates in the first blockchain, performing identity management on the target party based on the first intelligent contract service, wherein the identity management comprises the following steps:
judging whether a target party participates in a first blockchain for the first time or not based on a first registration node included in the first intelligent contract service; when the target party is determined to participate in the first block chain for the first time, establishing a participation queue and acquiring a participation number of the target party in the first block chain; establishing a participation identifier of a target party on a first block chain according to personal information submitted by the target party;
verifying the participation number and the participation identification respectively based on a first verification node included by the first intelligent contract service, determining the participation identity of the target party when the verification of both nodes is passed, and recording a verification operation log into the first verification node;
and determining the participation right of the target party according to the participation identity of the target party based on a first right management node included in the first intelligent contract service.
The working principle of the technical scheme is as follows: a first intelligent contract service is arranged on the first block chain; when determining that the target party participates in the first blockchain, performing identity management on the target party based on the first intelligent contract service, wherein the identity management comprises the following steps:
judging whether a target party participates in a first blockchain for the first time or not based on a first registration node included in the first intelligent contract service; when the target party is determined to participate in the first block chain for the first time, establishing a participation queue and acquiring a participation number of the target party in the first block chain; establishing a participation identifier of a target party on a first block chain according to personal information submitted by the target party; verifying the participation number and the participation identification respectively based on a first verification node included by the first intelligent contract service, determining the participation identity of the target party when the verification of both nodes is passed, and recording a verification operation log into the first verification node; and determining the participation right of the target party according to the participation identity of the target party based on a first right management node included in the first intelligent contract service.
The beneficial effects of the above technical scheme are that: and performing identity management on the target party based on the first intelligent contract service, wherein the identity management comprises identity registration, identity verification and participation right on the first blockchain. When a target party participates in the first block chain, the first intelligent dating point provides the target party with a participation identity on the first block chain, the identity accuracy of the target party when the target party operates on the first block chain is guaranteed, then effective management of the target party operating on the first block chain is achieved, after abnormal behaviors of the target party occur, tracing can be conducted according to the participation identity, loss of data on the first block chain is avoided, and safety of the first block chain is guaranteed.
According to some embodiments of the present invention, after the target party completes the participation operation on the first blockchain, the method further comprises:
a target direction cross-chain control module sends a cross-chain participation request;
the cross-chain control module receives the cross-chain participation request, judges whether the cross-chain participation request is legal or not, and determines that a target party is a cross-chain participant when the cross-chain participation request is legal;
a second intelligent contract service is arranged on the second block chain, and a second registration node included based on the second intelligent contract service acquires the participation identity of the cross-chain participant on the first block chain and converts the participation identity into an encrypted digital identity;
the encrypted digital identity is decrypted and verified based on a second verification node included in a second intelligent contract, when the decryption and verification are determined to be successful, a random number is generated to serve as a verification number, and the verification number is recorded in the second verification node;
and performing hash operation on the second authority management node based on the second intelligent contract service according to the verification number and the encrypted digital identity, and determining the participation authority of the encrypted digital identity according to the operation result.
The working principle of the technical scheme is as follows: a target direction cross-chain control module sends a cross-chain participation request; the cross-chain control module receives the cross-chain participation request, judges whether the cross-chain participation request is legal or not, and determines that a target party is a cross-chain participant when the cross-chain participation request is legal; a second intelligent contract service is arranged on the second block chain, and a second registration node included based on the second intelligent contract service acquires the participation identity of the cross-chain participant on the first block chain and converts the participation identity into an encrypted digital identity; the encrypted digital identity is decrypted and verified based on a second verification node included in a second intelligent contract, when the decryption and verification are determined to be successful, a random number is generated to serve as a verification number, and the verification number is recorded in the second verification node; and performing hash operation on the second authority management node based on the second intelligent contract service according to the verification number and the encrypted digital identity, and determining the participation authority of the encrypted digital identity according to the operation result.
The beneficial effects of the above technical scheme are that: after the target completes the participation operation on the first blockchain, the target can go to the second blockchain for participation operation, and a cross-chain control module is needed. The problem that in the prior art, a target party runs randomly on a plurality of block chains and lacks effective management and recording is avoided. Giving a new identity to the cross-chain participants based on the second intelligent dating, namely, converting the participation identity on the first blockchain into an encrypted digital identity; when the target party participates in any block chain, a new identity is ensured, and the participation operation of the target party on each block chain is convenient to record. The registration, verification and participation authority management of the encrypted digital identity are realized through the second intelligent contract.
According to some embodiments of the present invention, the determining whether the cross-chain participation request is legal includes:
and performing feature extraction on the cross-chain participation request, acquiring a participation operation log of the target party on the first block chain, checking, grading the participation operation log of the target party on the first block chain, and when the grade is determined to be greater than the preset grade, indicating that the cross-chain participation request is legal.
The working principle of the technical scheme is as follows: and when the evaluation is determined to be greater than a preset evaluation, the cross-chain participation request is legal, and the evaluation comprises the completion rate, the completion progress, whether abnormal behaviors exist or not and the like of the participation operation of the target party on the first block chain.
The beneficial effects of the above technical scheme are that: the random chain crossing of the target party is avoided, and the ordered management of the target party and the block chain is improved.
According to some embodiments of the invention, the method further comprises monitoring participation of the target party participating in the corresponding blockchain, including:
acquiring participation behavior data of a target party on a corresponding block chain, splitting the participation behavior data according to a preset rule, and decomposing the participation behavior data into N participation behaviors;
according to the time sequence, every two adjacent participation behaviors in the N participation behaviors are used as a group of target data to obtain N groups of target data;
and respectively calculating the association degrees of two participating behaviors in the N groups of target data, judging whether the association degrees are smaller than a preset association degree, screening out the target data with the association degrees smaller than the preset association degree as abnormal data, and generating alarm prompt information.
The working principle of the technical scheme is as follows: acquiring participation behavior data of a target party on a corresponding block chain, splitting the participation behavior data according to a preset rule, and decomposing the participation behavior data into N participation behaviors; according to the time sequence, every two adjacent participation behaviors in the N participation behaviors are used as a group of target data to obtain N groups of target data; and respectively calculating the association degrees of two participating behaviors in the N groups of target data, judging whether the association degrees are smaller than a preset association degree, screening out the target data with the association degrees smaller than the preset association degree as abnormal data, and generating alarm prompt information.
The beneficial effects of the above technical scheme are that: whether the participation behavior is abnormal behavior is accurately determined, and when the abnormality is determined, the method stops in time, so that loss is reduced.
According to some embodiments of the present invention, before determining whether the participation request is legal, the method further includes:
analyzing the participation request to obtain a corresponding character string, matching the character string with the virus character string, calculating the matching degree, and sending an alarm prompt when the matching degree is determined to be greater than the preset matching degree;
the matching the character string with the virus character string and calculating the matching degree comprises the following steps:
calculating a semantic distance value d between the character string and the virus character string:
wherein m is the number of semantics contained in the virus character string; n is the number of semantics contained in the character string; a. theiThe ith semantic meaning of the character string; b isjThe j semantic meaning of the virus character string; e is a natural constant;
calculating the matching degree P of the character string and the virus character string according to the semantic distance value of the character string and the virus character string:
wherein x is the number of substrings in the character string; y is the number of sub-strings in the virus character string; z is a radical ofwThe length of the w-th sub-string in the character string; q. q.swIs the length of the w-th sub-string in the virus string.
The working principle and the beneficial effects of the technical scheme are as follows: before judging whether the participation request is legal, analyzing the participation request to obtain a corresponding character string, matching the character string with a virus character string, calculating the matching degree, and sending an alarm prompt when the matching degree is determined to be greater than the preset matching degree; whether the participation request carries virus information or not is detected, and the safety of data on the block chain is effectively ensured. And comparing the semantics of the character string and the virus character string, and accurately calculating the semantic distance value between the character string and the virus character string so as to accurately calculate the matching degree between the character string and the virus character string, thereby improving the control accuracy of the system.
According to some embodiments of the invention, the determining whether the participation request is legal comprises:
acquiring identity identification information of a target party according to the participation request; the identity identification information comprises first identity identification information of the mechanism and second identity identification information of the individual;
and respectively verifying the first identity identification information and the second identity identification information, and when the first identity identification information and the second identity identification information are confirmed to pass verification and are in a corresponding relationship, indicating that the participation request is legal.
The working principle of the technical scheme is as follows: acquiring identity identification information of a target party according to the participation request; the identity identification information comprises first identity identification information of the mechanism and second identity identification information of the individual; and respectively verifying the first identity identification information and the second identity identification information, and when the first identity identification information and the second identity identification information are confirmed to pass verification and are in a corresponding relationship, indicating that the participation request is legal.
The beneficial effects of the above technical scheme are that: the first identity identification information and the second identity identification information of the target party are verified respectively, so that the accuracy of primary verification of the target party is guaranteed, and the accuracy of judging whether the participation request is legal is improved.
According to some embodiments of the present invention, after the target completes the participation operation on the blockchain, the cross-chain control module sends an instruction to make the target exit the corresponding blockchain.
The beneficial effects of the above technical scheme are that: the target party is prevented from staying on the block chain, the load on the block chain is reduced, and the response speed is improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An intelligent contract-based system for managing identity of parties participating in a block chain, comprising:
a first block chain;
a second block chain;
a cross-chain control module disposed between the first blockchain and the second blockchain, configured to:
receiving a participation request sent by a target party, and judging whether the participation request is legal or not; when the participation request is determined to be legal, performing feature extraction on the participation request to acquire block chain information requesting participation included in the participation request;
and after determining the information of the block chain requesting participation, enabling the target party to participate in the corresponding block chain.
2. The intelligent contract-based blockchain participant identity management system of claim 1, further comprising: a first intelligent contract service is arranged on the first block chain; when determining that the target party participates in the first blockchain, performing identity management on the target party based on the first intelligent contract service, wherein the identity management comprises the following steps:
judging whether a target party participates in a first blockchain for the first time or not based on a first registration node included in the first intelligent contract service; when the target party is determined to participate in the first block chain for the first time, establishing a participation queue and acquiring a participation number of the target party in the first block chain; establishing a participation identifier of a target party on a first block chain according to personal information submitted by the target party;
verifying the participation number and the participation identification respectively based on a first verification node included by the first intelligent contract service, determining the participation identity of the target party when the verification of both nodes is passed, and recording a verification operation log into the first verification node;
and determining the participation right of the target party according to the participation identity of the target party based on a first right management node included in the first intelligent contract service.
3. The intelligent contract-based blockchain participant identity management system of claim 2, further comprising, after the target completes participation in the first blockchain:
a target direction cross-chain control module sends a cross-chain participation request;
the cross-chain control module receives the cross-chain participation request, judges whether the cross-chain participation request is legal or not, and determines that a target party is a cross-chain participant when the cross-chain participation request is legal;
a second intelligent contract service is arranged on the second block chain, and a second registration node included based on the second intelligent contract service acquires the participation identity of the cross-chain participant on the first block chain and converts the participation identity into an encrypted digital identity;
the encrypted digital identity is decrypted and verified based on a second verification node included in a second intelligent contract, when the decryption and verification are determined to be successful, a random number is generated to serve as a verification number, and the verification number is recorded in the second verification node;
and performing hash operation on the second authority management node based on the second intelligent contract service according to the verification number and the encrypted digital identity, and determining the participation authority of the encrypted digital identity according to the operation result.
4. The intelligent contract-based blockchain participant identity management system of claim 3, wherein said determining whether the cross-chain participation request is legitimate comprises:
and performing feature extraction on the cross-chain participation request, acquiring a participation operation log of the target party on the first block chain, checking, grading the participation operation log of the target party on the first block chain, and when the grade is determined to be greater than the preset grade, indicating that the cross-chain participation request is legal.
5. The intelligent contract-based blockchain participant identity management system of claim 1, further comprising monitoring participation of a target party participating in a respective blockchain, comprising:
acquiring participation behavior data of a target party on a corresponding block chain, splitting the participation behavior data according to a preset rule, and decomposing the participation behavior data into N participation behaviors;
according to the time sequence, every two adjacent participation behaviors in the N participation behaviors are used as a group of target data to obtain N groups of target data;
and respectively calculating the association degrees of two participating behaviors in the N groups of target data, judging whether the association degrees are smaller than a preset association degree, screening out the target data with the association degrees smaller than the preset association degree as abnormal data, and generating alarm prompt information.
6. The intelligent contract-based blockchain participant identity management system of claim 1, further comprising, prior to determining whether the participation request is legitimate:
analyzing the participation request to obtain a corresponding character string, matching the character string with the virus character string, calculating the matching degree, and sending an alarm prompt when the matching degree is determined to be greater than the preset matching degree;
the matching the character string with the virus character string and calculating the matching degree comprises the following steps:
calculating a semantic distance value d between the character string and the virus character string:
wherein m is the number of semantics contained in the virus character string; n is the number of semantics contained in the character string; a. theiThe ith semantic meaning of the character string; b isjThe j semantic meaning of the virus character string; e is a natural constant;
calculating the matching degree P of the character string and the virus character string according to the semantic distance value of the character string and the virus character string:
wherein x is the number of substrings in the character string; y is a virusThe number of substrings in the character string; z is a radical ofwThe length of the w-th sub-string in the character string; q. q.swIs the length of the w-th sub-string in the virus string.
7. The intelligent contract-based blockchain participant identity management system of claim 1, wherein the determining whether the participation request is legitimate comprises:
acquiring identity identification information of a target party according to the participation request; the identity identification information comprises first identity identification information of the mechanism and second identity identification information of the individual;
and respectively verifying the first identity identification information and the second identity identification information, and when the first identity identification information and the second identity identification information are confirmed to pass verification and are in a corresponding relationship, indicating that the participation request is legal.
8. The intelligent contract-based blockchain participant identity management system of claim 1, further comprising: after the target party completes the participation operation on the block chain, the cross-chain control module sends an instruction to enable the target party to exit the corresponding block chain.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115189965A (en) * | 2022-09-06 | 2022-10-14 | 浙江数秦科技有限公司 | Cross-chain management system and cross-chain operation method of block chain |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115189965A (en) * | 2022-09-06 | 2022-10-14 | 浙江数秦科技有限公司 | Cross-chain management system and cross-chain operation method of block chain |
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Application publication date: 20220405 |