CN115941282A - NFT-based block chain cross-chain interaction system and method - Google Patents
NFT-based block chain cross-chain interaction system and method Download PDFInfo
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Abstract
The invention relates to a block chain cross-chain interaction system and method based on NFT. The system guarantees the integrity, the encryption and the traceability of information on a block chain by means of the scarcity, the indivisible property and the unique characteristic of NFT, forms a decentralized credibility mechanism by using the characteristic of unique code information embedded in NFT, and then carries out cross-chain management by combining a light node evaluation credibility scheme of a state LayerZero protocol. The invention can solve the problem of block chain island and solve the problems of existing block chain cross-chain technology of cross-chain double verification, limited intelligent contracts and irreversible transaction information tracking.
Description
Technical Field
The invention relates to the technical field of block chain crossing, in particular to a block chain crossing interaction system and method based on NFT.
Background
The development of blockchain technology has undergone more than 10 years of evolution and is considered as an important infrastructure to participate in the construction of future credible social views. The real society has embraced many different industries and economic areas. However, it is not realistic and appropriate to say that all industries in the whole real world are included in the blockchain. Each blockchain system can be considered as an independent economic value system. The block chain cross-chain technology is to connect the hub of each independent block chain, so as to realize the exchange function between the block chains of different value economic systems. Influenced by the supply and demand relationship, and established on the market of the supply and demand relationship, and the price is the premise of exchange and the embodiment of the value of the price. To enable the exchange of value across different blockchains, blockchains provide a cross-chain contractual service to the trading market in each individual blockchain through a cross-chain technique. Each zone cross chain is regarded as an independent account book, two or more independent block chains correspond to two or more independent account books, and the independent account books have no association relation. The block chain cross-chain technology is to open a door between different account books and allow values to flow across different block chains. Essentially, value cannot be transferred between ledgers. But for a particular user, the value stored in one blockchain can be transferred to another blockchain to generate new value, thus realizing value circulation on the blockchain.
The cross-chain flow of the blockchain is not complex in practice, and the core is that the target chain can respond to and verify the transaction and data sent out in the source chain. At present, three mainstream cross-link modes comprise a notary mechanism, a side chain/relay mode and a Hash locking technology. The notary mechanism is that a credible third party notary collects data information to be subjected to chain crossing and verifies the validity and authenticity of the data, and after the data information is completed, the notary mechanism is connected with a target chain in a digital signature mode to perform transaction, so that a chain crossing function is realized. The notary mechanism, while flexible to support blockchains of various architectures, has the disadvantage of being a centralized risk, and the interested parties involved in the cross-chain need to give greater trust to the intermediaries. The side chain is generally connected with a subordinate distributed account book connected with the main chain, and can be technically independent of the main chain, so that the self consensus mechanism can be expanded, and the like. The backbone is not aware of the presence of the side chains, which is the corresponding action that occurs from the active sensing of the backbone information by the side chains. The relay link is a combination of a side chain and a notary mechanism, and has key information for accessing and verifying a chain which needs to interoperate, and transfers cross-link messages of the two chains. I.e. the relay chain is a notary mechanism to the center. Representative of the hash lock technology is a lightning network. Hash locking can realize exchange of cross-chain assets, but cannot realize transfer of the cross-chain assets, and cannot realize cross-chain contracts, so that the application scene of the method is limited.
Therefore, the problem of island of the block chain still exists in the prior art, and the problems of cross-chain double verification, limited intelligent contracts and irreversible transaction information tracking existing in the block chain cross-chain technology still exist.
Disclosure of Invention
The invention aims to provide a block chain cross-chain interaction system and method based on NFT, which can solve the problem of block chain island and solve the problems of cross-chain double verification, limited intelligent contracts and irreversible interaction of transaction information tracking in the existing block chain cross-chain technology.
In order to achieve the purpose, the invention provides the following scheme:
an NFT-based blockchain cross-chain interaction system, comprising: the system comprises a cross-chain gateway, a cross-chain configurator, a registration center, a cross-chain bridge and cross-chain audit;
the cross-chain gateway is used for connecting the cross-chain configurator, the relay chain and the registration center; the cross-chain gateway is also used for opening a resource calling interface to the outside, analyzing and processing a cross-chain request submitted by a bottom block chain, storing a calling record and serving as a notarization node of a cross-chain network;
the cross-chain configurator is used for connecting the block chain of the bottom layer and the cross-chain gateway; the cross-chain configurator is also used for packaging the links and resources of the block chain at the bottom layer, abstracting and packaging the heterogeneous block chain contracts, blocks, transactions and states into a uniform format, and further analyzing cross-chain calling information to generate an NFT data packet; acquiring a target cross-link gateway, and connecting the target cross-link gateway and a cross-link configurator by using an NFT data packet;
the registry is used for storing the connection configuration of the cross-chain gateway, the cross-chain configurator and a bottom block chain and providing the cross-chain gateway for cross-chain calling;
the cross-chain bridge is used for packaging NFT data packets to be cross-chain into blocks and verifying the blocks through a group of verifiers in the cross-chain bridge;
the cross-link audit is used for cross-link management by adopting a light node evaluation credit scheme of a dynamic LayerZero protocol; the light node evaluation credit scheme of the dynamic LayerZero protocol is that a light node is respectively arranged on a departure chain and a destination chain; communicating the credit values to each other between the light nodes.
Optionally, the registry is further configured to perform legal verification on a cross-chain request submitted by an underlying blockchain;
if the verification is successful, accessing the entrance of the cross-link configurator to a target cross-link gateway;
if the verification fails, the cross-chain program is ended.
Optionally, the confidence value comprises: historical transaction rating and ratings of other users and nodes.
Optionally, the cross-chain bridge is further configured to store cross-chain service data.
An NFT-based block chain cross-chain interaction method comprises the following steps:
carrying out legal verification on a cross-link request submitted by a block chain at the bottom layer by using a registration center;
if the verification fails, ending the cross-link program;
if the verification is successful, packaging the link and the resource of the underlying block chain, abstracting and packaging the heterogeneous block chain contract, the block, the transaction and the state into a uniform format, and further analyzing the cross-chain calling information to generate an NFT data packet;
acquiring a target cross-link gateway, and connecting the target cross-link gateway and a cross-link configurator by using an NFT data packet; accessing an entrance of a cross-chain configurator to a target cross-chain gateway;
packaging NFT data packets to be subjected to chain crossing into blocks, and verifying the blocks through a group of verifiers in a chain crossing bridge;
storing the connection configuration of the cross-chain gateway, the cross-chain configurator and the underlying block chain in a registry; providing a cross-link gateway by using a registration center to carry out cross-link calling;
if the calling is successful, storing the cross-chain bridge information data;
if the calling is unsuccessful, starting a light node evaluation credit degree scheme of a dynamic LayerZero protocol of cross-link audit to evaluate the bidirectional light node;
if the evaluation result passes the verification, returning that if the verification is successful, encapsulating the link and the resource of the block chain at the bottom layer, abstracting and encapsulating the contract, the block, the transaction and the state of the heterogeneous block chain into a uniform format, and further analyzing the cross-chain calling information to generate an NFT data packet;
and if the evaluation result is not verified, returning the calling result to end the cross-chain response.
An NFT-based blockchain inter-chain interaction system, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the NFT-based blockchain cross-chain interaction method.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides an NFT-based block chain cross-chain interaction system and method, wherein a cross-chain bridge allows tokens and/or any data to be transmitted from one network to another network. They provide a compatible way to enable two parties to interoperate securely and provide key components of a development block chain multi-chain network. When the requirement of cross-chain interaction is met, the characteristic that code information of NFT is embedded with unique code information is utilized to form a decentralized trusted mechanism, and the integrity, the encryption and the traceability of the information on the chain can be ensured. The light node evaluation credit degree scheme of the dynamic LayerZero protocol is adopted for cross-link management, so that the credit value of the node comprises the historical transaction evaluation degree and the evaluation degree of other users and nodes, and other nodes only need to keep the trust node, node record, transaction evaluation and feedback information of the other nodes during evaluation; and two independent entities are additionally arranged to independently acquire partial information in a certain block and mutually authenticate the partial information. The two entities have similar functions, but the obtained information is different, which is equivalent to checking by two information sources.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a block chain cross-chain interactive system based on NFT according to the present invention;
fig. 2 is a schematic flowchart of NFT-based inter-chaining block chain interaction according to the present invention;
FIG. 3 is a schematic diagram of a cross-chain bridge interoperation model of a blockchain;
FIG. 4 is a schematic diagram of a processing mechanism of a cross-chain configurator of a blockchain;
FIG. 5 is a schematic diagram of a user identification framework of a blockchain inter-chain interaction system;
fig. 6 is a schematic diagram of the principle of the light node evaluation credit scheme of the dynamic LayerZero protocol.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a block chain cross-chain interaction system and method based on NFT, which can solve the problem of block chain island and solve the problems of cross-chain double verification, limited intelligent contracts and irreversible interaction of transaction information tracking in the existing block chain cross-chain technology.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Non-homogeneous tokens (NFTs) have NFT scarcity, indivisible, and unique characteristics that can guarantee the integrity, encryption, and traceability of information on a chain based on NFT characteristics. The method aims at the problems of a complex credible verification mechanism, strong and sufficient combination of an intelligent contract and a cross-chain mechanism, irreversible transaction tracking and the like in the traditional single cross-chain interaction scheme.
When the cross-link interaction requirement is met, the characteristic that code information of NFT is embedded with unique code information is utilized to form a decentralized credible mechanism, and then a management model is realized by combining a cross-link notary node evaluation scheme of dynamic Layerzero. Firstly, the two-way credible verification time can be saved, and the efficiency is improved; secondly, the applicability problem of the intelligent contract can be weakened; finally, the traceability problem can be solved through the value scarcity of NFT.
Fig. 1 is a schematic structural diagram of a block chain cross-chain interactive system based on NFT provided in the present invention, and as shown in fig. 1, the block chain cross-chain interactive system based on NFT provided in the present invention includes: cross-chain gateways, cross-chain configurators, registries, cross-chain bridges and cross-chain audits.
The cross-chain configurator and the registry are cross-chain configuration management modules;
the cross-chain gateway is used for connecting the cross-chain configurator, the relay chain and the registration center; the cross-chain gateway is also used for opening a resource calling interface to the outside, analyzing and processing a cross-chain request submitted by a bottom block chain, storing a calling record and serving as a notarization node of a cross-chain network;
as shown in fig. 4, the cross-chain configurator is configured to connect the underlying blockchain with the cross-chain gateway; the cross-chain configurator is also used for packaging the links and resources of the underlying block chain, abstracting and packaging heterogeneous block chain contracts, blocks, transactions and states into a uniform format, and further analyzing cross-chain calling information to generate an NFT data packet; acquiring a target cross-link gateway, and connecting the target cross-link gateway and a cross-link configurator by using an NFT (network File transfer protocol) data packet; before applying for a cross-chain gateway, the cross-chain configurator is used for unifying information data applied for calling into an NFT identification data packet, then matching cross-chain target resources through a generated port target, then executing a cross-chain application requirement, and finally returning a response to the configurator. The different configurators exist independently and are not communicated with each other. During the course of a cross-chain transaction, the transaction information of the unique right certificate is recorded in the distributed ledger of the blockchain, and the traceability is realized, that is, each transaction is publicly transparent, and the NFT is recorded in the distributed ledger of the blockchain, so as to store the detailed information about the NFT, including the conversion of ownership, and is safely stored in a digital form to prevent abuse or tampering. The details of the NFT include, but are not limited to, informational data, digital information, document certificates, virtual goods, and entitlement certificates.
As shown in fig. 4, the cross-chain configurator mainly implements the linking and resource encapsulation of the underlying blockchain, abstracts and encapsulates information such as contracts, blocks, transactions, states, and the like of the heterogeneous blockchain into a uniform format, analyzes cross-chain call information, distributes a cross-chain call request, and returns a cross-chain call response. The different configurators are independent from each other, are responsible for the connection and encapsulation of the respective block chains, and open the block chain resource call interface to the outside.
The interfaces opened to the gateway by the configurator of the cross-chain system comprise a resource calling interface, a bottom-layer chain interface, a chain state interface, a resource interface, a block data query interface, a transaction data query interface and the like. The resource calling interface receives the calling information, generates a specific calling request according to the block chain ID, calling method and the like which are applied to calling by the calling party, and the target block chain is responsible for executing calling and returning a calling result, and the filtering function of sensitive data or junk data of the source chain needs to be synchronously considered in the executing process. The underlying chain interface returns all the underlying blockchain data linked across the chain system configurator in the form of a list, which characterizes the type, ID and callable resources of each blockchain. The chain state interface counts state information of a block chain of a specified query type, and the state information comprehensively reflects the chain number, the block number, the node number, the contract number of the block chain of the type and detailed information corresponding to each chain. The resource list interface meets the requirement of fine-grained query, and can query all available resources according to the specified block chain ID. The block information query interface can query the block information on the block chain according to the specified block chain ID and the range of the query block, and the result is returned in a form of a list. The transaction information query interface opens a function of querying the latest N transactions on a specific block chain, and the configurator initiates a query to the specified block chain according to the received query request.
The registry is used for storing the connection configuration of the cross-chain gateway, the cross-chain configurator and a bottom block chain and providing the cross-chain gateway for cross-chain calling; the registry is a communication turning point connecting different cross-link gateways.
The chain-crossing bridge is used for packaging the NFT data packets to be subjected to chain crossing into blocks and verifying the blocks by a group of verifiers in the chain-crossing bridge; the set of verifiers is not from a parallel chain, but rather is randomly grouped and assigned from a uniformly managed verification pool.
The cross-chain bridge is responsible for storing cross-chain service data and mainly realizes block header data synchronization, cross-chain transaction, cross-chain data verification and the like.
The cross-chain audit is used for cross-chain management by adopting a light node evaluation credit scheme of a dynamic LayerZero protocol; the light node evaluation credit scheme of the dynamic Layerzero protocol is that a light node is arranged on a departure chain and a destination chain respectively; communicating the credit values to each other between the light nodes. The cross-link audit is responsible for realizing a cross-link notary node evaluation function of a light node evaluation credit scheme of a dynamic LayerZero protocol and realizing the functions of synchronously storing, inquiring and tracing information data, and returning each step of response to the registration center.
LayerZero deploys a set of intelligent contracts for cross-chain as endpoints on different chains, but the intelligent contracts (endpoints) interact through a presidenter and a repeater. The credit value of the dynamic Layerzero cross-link node comprises historical transaction evaluation degree and evaluation degree of other users and nodes; the more excellent trading times inside the node are, the higher the credit value of the node is; node credit values may be accumulated and honest transactions accumulated to obtain higher credit values.
The registry is also used for carrying out legal verification on a cross-chain request submitted by a bottom-layer block chain;
if the verification is successful, accessing the entrance of the cross-chain configurator to the target cross-chain gateway;
if the verification fails, the cross-chain program is ended.
As shown in fig. 3, the cross-chain bridge enabled mode in the NFT-based blockchain cross-chain interactive system can effectively solve the problem of interoperability between heterogeneous blockchains. The core of the cross-chain bridge is that a relay chain is provided, and all other chain information connected to the relay chain is stored on the chain in the form of block chain data, and the information comes from each independently operated parallel chain connected to the relay chain. There are four types of participants in the network, including a verifier (Validator), a collector (color), a Fisherman (Fisherman), and a Nominator (Nominator). This will be described in detail below: verifying the person: the client having the highest authority and mainly responsible for the out-of-block of the Polkado network verifies each named block chained in parallel in each round of block generation process of the whole network by operating a relay chain. When the blocks of each parallel chain are determined by the verifier, the verifier assembles all the parallel chain block heads into the relay chain block and performs consensus block.
The collector helps the verifier to collect necessary transaction information in each parallel chain, packages and executes related transactions, attaches a zero-knowledge proof to the transaction execution result, and submits the zero-knowledge proof to the verifier of the parallel chain;
the phisher does not directly participate in the block packing process, and the phisher can check the illegal action of a pledge participant and provide a signed effective certificate to obtain the reward benefit. Wherein the illegal action comprises that a verifier signs two different blocks with the same father block, or verifies that an invalid block passes through on a parallel chain, and the like;
the nominees are a group of persons with interest, and the verifiers are produced by the nominees through election. After the nomineer selects the verifier, the nomineer and the verifier can receive the same proportion of rewards and punishments by escorting the rights and interests of the nomineer to the verifier, so that the verifier maintains the whole Polkadot network on behalf of the nomineer.
Each parallel chain has two message queues, one is the output queue engress and one is the input queue inress.
The cross-chain transaction process between parallel chain a and parallel chain B is as follows:
1. the chain A stores the cross-chain transaction into an output queue of the chain A;
2. a comparator of the A chain collects common transactions and cross-chain transactions of the A chain and submits the common transactions and the cross-chain transactions to a Validator set of the A chain;
3. after the Validator set of the chain A is successfully verified, the block header information and the information in the progress are submitted to a relay chain;
4. after the relay chain confirms the block and the cross-link transaction route by using a consensus algorithm, a Validator on the relay chain submits the corresponding transaction of the A-link from an engress queue of the A-link to an ingress queue of the B-link;
5. the B-chain performs transactions in the block and ingress queues and modifies its own ledger.
As shown in fig. 5, by using the method of unifying NFT cross-chain identification identities, the called data and results can be encapsulated and sent back uniformly, and the integrity, encryption, and traceability of information on the chain can be ensured. The functions of unified calling, gateway adaptation, query and the like of cross-link requirements are realized. As shown in fig. 5, in the design of the user identification infrastructure, the relay chain is responsible for maintaining the generation, distribution, management, identification and the like of the unified identity credentials of the users in the access cross-chain system, and provides a cross-chain trust delivery service mechanism. The cross-chain system realizes cross-chain access and cross-chain identity identification verification on the user through a cross-chain gateway. When the heterogeneous block chain system applies for accessing the cross-chain system, block chain identification needs to be registered on the relay chain, unified identity identification is registered for users on the chain, and cross-chain trust service is provided in an expansion mode.
The invention introduces the concept of distributed user identity recognition, NFT-IDToken. The use of NFT-IDToken makes identification more secure, fast, retrospective, and reusable. In NFT-IDChain, the registration mode and mode of each user are the same, after the users register in cross-chain bridge IDChain, a new block is created in an account book, and an intelligent contract generator can execute and automatically generate the new block. The cross-chain system realizes cross-chain access and cross-chain identity identification verification on the user through a cross-chain gateway. When the heterogeneous block chain system applies for accessing the cross-chain system, block chain identification needs to be registered on the relay chain, unified identity identification is registered for users on the chain, and cross-chain trust service is provided in an expanded mode. The associated role symbol definitions in the cross-chain system are shown in table 1.
TABLE 1
Definition 1: independent blockchain user identity information. The information of the link point of the independent block is used as the registration information and is defined as
Wherein, the U-CBID is the identity of a user on a certain independent blockchain; { PKBCID, SKBCID } is a public/private key pair for a user on some independent blockchain; is the identity certificate of the node user on some independent blockchain; />
Is the identity attribute information of the user on some independent blockchain.
Definition 2: user identities are unified across a chain system. The unified user ID of the cross-chain system is defined as
= { NFT-CBID, { PKNFT-BCID, SKNFT-BCID }, {1,2, \8230; }, NFT (), re }. The NFT-CBID node has the unique identity in a cross-chain system and has the function of indexing; { PKNFT-BCID, SKNFT-BCID } is a node public/private key pair issued by a cross-chain system to a user; 1 is identity information of a block chain 1 where a user is located; NFT () is an encrypted block link point attribute; re represents the operation traces of registration, addition, update, cross-chain access and the like of the user in the cross-chain system. The uniform identity identifier of the cross-chain system can correspond to the user identity information of the block chains, and represents that the user has related user information in the block chain systems.
And researching an identity interconnection mutual-recognition model of the cross-chain system based on the design of a user identification basic frame of the cross-chain system and the definition of uniform user identification. Firstly, in a cross-chain system, the information of user identities in different blockchain systems needs to be correlated, and an association relation is established, so that the identities of users in cross-chain access can be trusted and accessed, and the safety of the cross-chain system is provided. Secondly, the blockchain cross-chain system generates a unique identity available in the cross-chain system according to the association information of the user.
The input of the user registration unified identity algorithm is the identity and the attribute of the user on the independent block chain system, and the identity and the attribute are used for binding in the cross-chain system. The output is a public key/private key and NFT identity generated by a user in the cross-chain system. The specific process is as follows:
the first step is as follows: the user A sends the identity information (including the belonged block identification U-CBID and the attribute) of the user A
) Sending to a cross-chain system through the independent blockchain;
the second step: the cross-chain system generates a cross-chain identity NFT-BCID according to the information uploaded by the user A;
the third step: generating a public key (PKU-BCID) and a private key (SKU-BCID) by a cross-chain system;
the fourth step: generating a digital signature S = NFI (U-BCID, PKU-BCID) by a cross-chain system;
the fifth step: the cross-chain system sends the blockchain user identity, the cross-chain user identity, the private key and the digital signature to the user A.
As shown in FIG. 6, the dynamic LayerZero enabled cross-chain notary light node evaluation function, layerZero first is the underlying protocol that will enable many different applications to use it as the base layer. Second, layerZero is a full-link interoperability protocol. Its mission is to connect every contract on one chain with every contract on the other chains-pure interoperability. LayerZero can achieve full-chain interoperability through cross-chain bridging and messaging. Dynamic LayerZero allows a single mobility pool to be bound to all connected chains, but has mobility across the various chains and guarantees ultimate certainty of asset transfer across the source chain, while also guaranteeing reliability, authenticity of the information across the chain. As shown in fig. 6, the broadcasting board is used for displaying voting content, evaluation content and announcement information. The voting content comprises the information of node voting, the signature of a voter and the signature of a broadcast board; the evaluation process comprises evaluation content and an evaluation result; the advertisement information includes the addresses of the nodes participating in the voting and the voting start and end times. The node module is used for the node to fill in the voting information and verify. The system comprises a node login verification module and an information filling module. The data acquisition module is used for acquiring node evaluation information and historical transaction evaluation information. The data storage module is used for storing the node information and the credit sequencing information. And the credit ordering module is a module for evaluating the node credit based on a dynamic LayerZero prediction machine model.
The system broadcasts the nodes participating in the voting and the voting deadline on a broadcast board at a certain time point; the node receives the voting information, logs in and verifies the information of the node, fills in a trusted node and signs, and then transmits the information to the broadcast board, and the broadcast board displays the information transmitted by the node; and after the voting time is over, calling a dynamic Layerzero predictive model by the system to sort the voting information by credit degree, and displaying the result and the calculation process on a broadcasting board. The node can check all voting information and operation processes. The node firstly sends a login request to the system, and the system receives the request and returns the request to the node with the content encrypted by the public key provided by the node; and the node decrypts the information encrypted by the public key by using the private key, and if the information encrypted by the public key is consistent with the information encrypted by the public key, the login is successful. The data storage comprises basic information of the node (such as a public key and an IP address of the node), historical information of node transaction and information of node voting, and the node can check at any time.
Fig. 2 is a schematic flow diagram of a block chain cross-chain interaction based on NFT provided in the present invention, and as shown in fig. 2, a block chain cross-chain interaction method based on NFT provided in the present invention includes:
s1, carrying out legal verification on a cross-link request submitted by a block chain at a bottom layer by using a registration center;
s2, if the verification fails, ending the cross-link program;
s3, if the verification is successful, packaging the link and the resource of the block chain at the bottom layer, abstracting and packaging the contract, the block, the transaction and the state of the heterogeneous block chain into a uniform format, and further analyzing the cross-chain calling information to generate an NFT data packet;
s4, acquiring a target cross-link gateway, and connecting the target cross-link gateway and a cross-link configurator by using an NFT (network File transfer protocol) data packet; accessing an entrance of a cross-chain configurator to a target cross-chain gateway;
s5, packaging the NFT data packets to be subjected to chain crossing into blocks, and verifying the blocks by a group of verifiers in a chain crossing bridge;
s6, storing the connection configuration of the cross-chain gateway, the cross-chain configurator and the block chain at the bottom layer in a registry; a registration center is used for providing a cross-link gateway to carry out cross-link calling;
s7, if the calling is successful, storing the cross-chain bridge information data;
s8, if the calling is unsuccessful, starting a light node evaluation credit degree scheme of a dynamic LayerZero protocol of cross-chain audit to evaluate the bidirectional light node;
s9, if the evaluation result passes the verification, returning that if the verification is successful, encapsulating the link and the resource of the underlying block chain, abstracting and encapsulating the contract, the block, the transaction and the state of the heterogeneous block chain into a uniform format, and further analyzing the cross-chain calling information to generate an NFT data packet;
and S10, if the evaluation result is not verified, returning a calling result to end the cross-chain response.
In order to execute a corresponding method in the foregoing embodiments to achieve corresponding functions and technical effects, the present invention further provides an NFT-based blockchain inter-chain interaction system, including: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the NFT-based blockchain cross-chain interaction method.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. An NFT-based blockchain inter-chain interaction system, comprising: a cross-chain gateway, a cross-chain configurator, a registration center, a cross-chain bridge and cross-chain audit;
the cross-chain gateway is used for connecting the cross-chain configurator, the relay chain and the registration center; the cross-link gateway is also used for calling an interface for an external open resource, analyzing and processing a cross-link request submitted by a bottom block link, storing a calling record and serving as a notarization node of a cross-link network;
the cross-chain configurator is used for connecting the block chain at the bottom layer with the cross-chain gateway; the cross-chain configurator is also used for packaging the links and resources of the block chain at the bottom layer, abstracting and packaging the heterogeneous block chain contracts, blocks, transactions and states into a uniform format, and further analyzing cross-chain calling information to generate an NFT data packet; acquiring a target cross-link gateway, and connecting the target cross-link gateway and a cross-link configurator by using an NFT data packet;
the registry is used for storing the connection configuration of the cross-chain gateway, the cross-chain configurator and a bottom block chain and providing the cross-chain gateway for cross-chain calling;
the cross-chain bridge is used for packaging NFT data packets to be cross-chain into blocks and verifying the blocks through a group of verifiers in the cross-chain bridge;
the cross-link audit is used for cross-link management by adopting a light node evaluation credit scheme of a dynamic LayerZero protocol; the light node evaluation credit scheme of the dynamic LayerZero protocol is that a light node is respectively arranged on a departure chain and a destination chain; communicating the credit values to each other between the light nodes.
2. The NFT-based blockchain cross-chain interaction system of claim 1, wherein the registry is further configured to validate a cross-chain request submitted by an underlying blockchain;
if the verification is successful, accessing the entrance of the cross-chain configurator to the target cross-chain gateway;
if the verification fails, the cross-chain program is ended.
3. The NFT-based blockchain inter-chain interaction system of claim 1, wherein the confidence value comprises: historical transaction ratings and ratings of other users and nodes.
4. The NFT-based blockchain cross-chain interaction system of claim 1, wherein the cross-chain bridge is further configured to store cross-chain traffic data.
5. An NFT-based block chain cross-chain interaction method is characterized by comprising the following steps:
carrying out legal verification on a cross-link request submitted by a block chain at the bottom layer by using a registration center;
if the verification fails, ending the cross-link program;
if the verification is successful, packaging the link and the resource of the block chain at the bottom layer, abstracting and packaging the heterogeneous block chain contract, the block, the transaction and the state into a uniform format, and further analyzing the cross-chain calling information to generate an NFT data packet;
acquiring a target cross-link gateway, and connecting the target cross-link gateway and a cross-link configurator by using an NFT data packet; accessing an entrance of a cross-chain configurator to a target cross-chain gateway;
packaging NFT data packets to be subjected to chain crossing into blocks, and verifying the blocks by a group of verifiers in a chain crossing bridge;
storing the connection configuration of the cross-chain gateway, the cross-chain configurator and the underlying block chain in a registry; providing a cross-link gateway by using a registration center to carry out cross-link calling;
if the calling is successful, storing the cross-link bridge information data;
if the calling is unsuccessful, starting a light node evaluation credit degree scheme of a dynamic LayerZero protocol of cross-link audit to evaluate the bidirectional light node;
if the evaluation result passes the verification, returning to the step of if the verification is successful, encapsulating the link and the resource of the underlying block chain, abstracting and encapsulating the contract, the block, the transaction and the state of the heterogeneous block chain into a uniform format, and further analyzing the cross-chain calling information to generate an NFT data packet;
and if the evaluation result is not verified, returning the calling result to end the cross-chain response.
6. An NFT-based blockchain inter-chain interaction system, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement an NFT-based blockchain cross-chain interaction method of claim 5.
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