CN113783698A - Supply chain financial method based on decentralized cross-chain - Google Patents

Supply chain financial method based on decentralized cross-chain Download PDF

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CN113783698A
CN113783698A CN202110991223.9A CN202110991223A CN113783698A CN 113783698 A CN113783698 A CN 113783698A CN 202110991223 A CN202110991223 A CN 202110991223A CN 113783698 A CN113783698 A CN 113783698A
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CN113783698B (en
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陈嘉俊
臧铖
郭东升
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China Zheshang Bank Co Ltd
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Abstract

The invention discloses a supply chain financial method based on decentralized cross-chain, which constructs a alliance chain by taking financial institutions, core enterprises and upstream and downstream enterprises as organization members, carries out supply chain financial business on the alliance chain through intelligent contracts, gets through supply chain barriers of different core enterprises and different industries through a safe and reliable decentralized cross-chain mechanism, more conveniently eliminates information asymmetry in supply chain finance, reduces risks of fraud, false transaction and repeated financing, solves the problem of data sharing among the financial institutions, the core enterprises and the upstream and downstream small micro enterprises, realizes credit transfer between a single industry supply chain and a multi-industry supply chain, controls and manages the performance risks of the intelligent contracts, promotes monitoring convenience, reduces financing cost, improves financing efficiency, and achieves the aims of constructing larger financial chains, The goal of an ecologically more complete supply chain financial system.

Description

Supply chain financial method based on decentralized cross-chain
Technical Field
The invention relates to the technical field of block chains and supply chains, in particular to a supply chain financial method based on decentralized cross-chain.
Background
The core enterprise is taken as the axis, the supply chain finance of a plurality of medium and small enterprises is developed rapidly, and the market scale is huge, however, in the traditional supply chain finance mode, the medium and small enterprises are difficult to finance, expensive to finance, low in turnover efficiency and difficult to develop on a large scale due to the fact that the information is not transparent enough. There are mainly the following problems: difficulty in receivables confirming rights; difficulty in material management; the financing subject range is narrow; financing tools are difficult to transfer. The characteristics of decentralized and multi-centralized block chain technology, non-falsification, high safety, value transfer, machine trust and the like can effectively solve the financial problem of the supply chain.
The current supply chain financial system based on block generally uses the hash or the original text of the certificate information such as the transaction bill, the revenue and expenditure bill, the receipt certificate, the in-out bank certificate, the logistics certificate and the like and the addressing address hash to be uploaded to the block chain by the core enterprise and the upstream and downstream enterprises, and the multiple parties can realize the common recognition. The core enterprise, the fund side, the upstream enterprise and the downstream enterprise are connected through the block chain, the credibility of the data is enhanced through chain linking of accounts receivable, bill certificates and mortgage goods certificates, the credibility of the fund side for the repayment capacity credit of the enterprise is enhanced, the enterprise can conveniently conduct financing, namely, the credit is sunk, and the data trust is opened. The method does solve the supply chain financial problems, but the method generally can only open a supply chain system of a relatively similar industry, and a core enterprise and upstream and downstream enterprises together construct a alliance chain, so that data sharing is performed on the chain, but the problem of how to share data among different industries and the problem of data privacy protection are faced.
Disclosure of Invention
The invention provides a supply chain finance method based on decentralized cross-chain based on the defects of supply chain finance.
The purpose of the invention is realized by the following technical scheme: a supply chain financial method based on decentralized cross-chain, the method comprising:
the method comprises the following steps that supply chain members serve as alliance chain organization members to construct alliance chains, supply chain financial services are conducted on the alliance chains through intelligent contracts, supply chains of different alliance chains are communicated through decentralized cross-chain, and signing, acceptance, guarantee, payment, quality assurance and cash of accounts to be received in the supply chains are achieved;
the single alliance chain is provided with a supply chain financial platform, an alliance chain management module, a credit granting management module and a core system module; realizing cross-link communication between the alliance chains through a decentralized cross-link module;
different industrial chains are opened on a supply chain through cross-chain, cross-chain authorization registration, identity management and access authority management are carried out according to business contracts, a cross-chain decentralized strategy is specified, a union chain of a single industrial chain carries out cross-chain communication through cross-chain agent nodes, and the cross-chain communication comprises three links: the method comprises the following steps that communication is carried out between a source chain link and a proxy node, communication is carried out between a source chain proxy node and a destination chain proxy node, communication is carried out between the proxy node and the destination chain link node, and each cross-chain link can be configured with a plurality of communication connections according to a decentralized strategy;
performing cross-chain authorization registration, cross-chain identity management, cross-chain verification, cross-chain routing, cross-chain standardized communication and cross-chain decentralized strategy management by the cross-chain agent node according to the authority specified by the commercial contract on the supply chain;
the method comprises the steps of deploying a cross-chain management contract on an alliance link point of a single industry chain on a supply chain, performing cross-chain management according to the authority defined by a commercial contract on the supply chain, and specifically comprises cross-chain communication between the alliance link point and an agent node, cross-chain transaction verification, decentralized strategy verification, submission of cross-chain transaction to a target chain business contract, reception of a business contract execution result of the cross-chain transaction, and transmission of the execution result to the agent node.
Further, the supply chain financial platform: the method comprises protocol management, admission management, transaction management, trade auditing and inquiry statistics;
the alliance chain management module: if the member is a member in the local alliance chain, managing the member in the alliance chain, wherein the management comprises secret key management, admission management, receivable and payable management, standing book management and transaction management; if the member is a cross-chain member, cross-chain management is carried out;
the credit granting management module: the enterprise trust and the peer trust are included, if the enterprise trust and the peer trust are the trust of the alliance chain, the trust operation is directly carried out, and if the enterprise trust and the peer trust are not the trust of the alliance chain, the trust operation is carried out through chain crossing;
the core system module: is responsible for accounting processing, including reconciliation and clearing of transactions among supply chain members;
the decentralized cross-chain module: including cross-chain management, certificate management, rights management, decentralized policies and cross-chain communication.
Further, supply chain financial business implementation based on decentralized cross-chain is as follows:
(1) supply chain account receivable and payment issuing: the receivable and receivable account issuing party carries out receivable and receivable account issuing operation through a supply chain financial platform; the supply chain financial platform checks the issuing information, including the verification of the identity of both transaction parties, the verification of trade background, the issuing amount, the issuing date and other information; after the issuance verification is passed, packaging the information into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(2) supply chain receivable acceptance: the receivable accounts accepting party carries out receivable accounts accepting operation through a supply chain financial platform; the supply chain financial platform verifies the acceptance information, including the verification of the identity of both transaction parties, the verification of trade background, the verification of the acceptance amount, the acceptance date and other information; after acceptance verification is passed, packaging the block chain transaction information into standard decentralized and cross-chain based block chain transaction information, and sending the block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(3) supply chain receivable payment and guarantee: the bank-keeping party carries out account receivable bank-keeping operation through a supply chain financial platform; the supply chain financial platform verifies the guarantee information, which mainly comprises the verification of the identity of both transaction parties, the verification of trade background, the verification of the guarantee amount, the guarantee date and other information; after the acceptance verification is passed, packaging the information into standard block chain transaction information based on decentralized cross-chain, and sending the information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(4) supply chain accounts receivable payment: the payer carries out accounts receivable payment operation through a supply chain financial platform; the supply chain financial platform verifies the payment information, and the verification mainly comprises the verification of information such as identity verification of both transaction parties, trade background verification, payment amount, payment date and the like; after the payment verification is passed, packaging into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(5) supply chain receivables pledge: the receivable pledge performs receivable pledge operations through a supply chain financial platform based on decentralization; the supply chain financial platform verifies the pledge information, which mainly comprises the verification of the identity of both parties of the transaction, the verification of trade background, the verification of pledge amount, pledge date and other information; after the pledge passes the verification, packaging the pledge into standard block chain transaction information based on decentralized cross-chain and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(6) supply chain receivable cash redemption: the cashing and paying party carries out cashing and paying operation through a supply chain financial platform; the supply chain financial platform verifies the cashing information, which mainly comprises the verification of the identity of both transaction parties, the verification of trade background, the verification of cashing amount, cashing date and other information; after the cashing verification passes, packaging the transaction information into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; and carrying out value credible transfer based on the cross-chain blockchain network.
Further, the process of trusted value transfer based on the block chain network across the chain is as follows: after the block chain bottom network receives the standard transaction information, analyzing the information; then, identity authentication and information authentication are carried out, and after the authentication is passed, consensus execution is carried out; if the business is both sides of the transaction in the alliance chain, executing the business intelligent contract of the alliance chain; if the two parties are trading parties of the cross-link network, entering a decentralized cross-link module to perform a cross-link process, sending the trading information to a payee alliance chain, executing the trading information after verification is passed, and returning a result through the cross-link.
Further, cross-chain based review of trade contexts includes:
(1) chain deposit evidence on trade background materials: the client needs to upload the image pieces of the contract and the invoice when signing accounts receivable; performing OCR recognition on the image, and checking whether the invoice is true or false; each account receivable is associated with a specific contract and an invoice, and the contract amount is deducted according to the account receivable amount; through uploading, auditing and deduction of the trade background, the business authenticity of accounts receivable on a decentralized cross-chain supply chain financial platform is improved;
(2) and (4) auditing trade background data: performing on-chain queries through a supply chain financial platform based on a cross-chain; establishing a query index based on accounts receivable; and sending the index information to a block chain network based on cross-chain for query.
Furthermore, the communication between the proxy nodes and the alliance link nodes need to meet the decentralization strategy; the decentralization strategy comprises the following steps: ANY, MAJORITY, ALL, noutton;
ANY: the message sent by any agent node is received and can be verified;
MAJORITY: the message sent by most agent nodes is received and can be verified;
ALL: the messages sent by all the agent nodes are received and can pass the verification;
NOUTOF: the messages sent by the designated N agent nodes are received and can pass the verification.
Further, a source chain of a federation chain on a supply chain can perform cross-chain registration to a target chain, the cross-chain registration mainly comprises identity information, a verification rule and a decentralization strategy of the source chain, after the registration is successful, a verification engine of the target chain can generate the verification rule of the chain, and then the legitimacy of cross-chain transaction and the decentralization strategy are verified according to the verification rule; different verification rules can be generated aiming at block chain platforms with different architectures, and different decentralization strategies can be generated according to different registration information; and the identity information and the registration information of the source chain are stored persistently.
Further, a federation chain on the supply chain needs to be authorized and controlled for data rights on the chain; the authority control of data access between alliance chains mainly carries out authority control management through registration information, relevant authorities including read-write authority, information acquisition range, contract method calling authority and the like are appointed during registration, and the control management of the data access authority of a supply chain can be realized in a checking stage.
Further, when decentralized cross-chain transaction is carried out, the agent node firstly receives cross-chain transaction sent by the opposite end agent node, the target chain agent node carries out verification according to a decentralized strategy during registration, if the strategy is met, the cross-chain transaction is submitted to a target chain cross-chain management contract, the cross-chain management contract carries out verification according to the decentralized strategy during registration, if the strategy is met, verification is passed, cross-chain transaction consensus in the chain is carried out, and after the consensus is finished, the account book is written in; the destination chain executes the cross-chain transaction, returns the result, and is sent to the destination chain agent node and then to the source chain agent node through the cross-chain management contract.
Further, the decentralized policy validation between the agent nodes is specifically: the target chain agent node collects cross-chain transactions sent by the opposite end chain; verifying the cross-link message digest and the signature information, and if the message digests are the same and the signature verification is passed, considering that messages endorsed by different agent nodes are received; verifying endorsement messages of different agent nodes and a decentralization strategy aiming at the same cross-link transaction within a limited time T, and submitting the endorsement messages to a cross-link management contract of a target chain if the endorsement messages pass the verification;
the decentralized strategy verification between the agent node and the block chain node specifically comprises the following steps: the cross-chain management contract receives cross-chain transactions sent by the agent node; verifying the cross-link message digest and the signature information, and if the message digest is the same and the signature passes, considering that messages endorsed by different agent nodes are received; and verifying endorsement messages of different agent nodes and a decentralization strategy aiming at the same cross-link transaction within a limited time T, and if the endorsement messages pass the verification, performing consensus execution.
The invention has the beneficial effects that: the invention constructs a alliance chain by taking financial institutions, core enterprises and upstream and downstream enterprises as organization members, and carries out supply chain financial business on the alliance chain through intelligent contracts, the supply chain barriers of different core enterprises and different industries are opened through a safe and reliable decentralized cross-chain mechanism, the information asymmetry in supply chain finance is eliminated more conveniently, the risks of fraud, false transactions and repeated financing are reduced, the problem of data sharing among financial institutions, core enterprises and upstream and downstream small micro-enterprises is solved, credit transmission is realized from a single industry supply chain to a multi-industry supply chain through decentralized cross-chain, the performance risk is controlled by an intelligent contract, the supervision convenience is improved, the financing cost is reduced, the financing efficiency is improved, and the purpose of constructing a large-scale, ecological and complete supply chain financial system is achieved.
Drawings
FIG. 1 is a block diagram illustrating an overall architecture of a supply chain financial method for decentralized cross-chain provisioning according to an embodiment of the present invention;
FIG. 2 is a diagram of a decentralized cross-chain architecture provided by an embodiment of the present invention;
FIG. 3 is a flowchart of cross-chaining certificate issuance provided by an embodiment of the present invention;
FIG. 4 is a flowchart of a cross-chain registration process provided by an embodiment of the invention;
FIG. 5 is a flowchart illustrating rights management provided by an embodiment of the present invention;
FIG. 6 is a flow diagram of inter-supply chain communication between multiple supply chains provided by an embodiment of the present invention;
FIG. 7 is a schematic diagram of a decentralized cross-chain transaction management design according to an embodiment of the present invention;
FIG. 8 is a cross-chain supply chain receivables posting flow diagram provided by an embodiment of the present invention;
FIG. 9 is a cross-chain supply chain receivables acceptance flow diagram provided by an embodiment of the invention;
FIG. 10 is a cross-chain supply chain receivables deposit flow diagram provided by an embodiment of the invention;
FIG. 11 is a cross-chain supply chain receivables payment flow diagram provided by an embodiment of the invention;
FIG. 12 is a flow chart of an across-chain supply chain receivables pledge provided by an embodiment of the present invention;
FIG. 13 is a cross-chain supply chain receivables redemption flow diagram provided by an embodiment of the invention;
fig. 14 is a flowchart of cross-chain based trade background review provided by an embodiment of the present invention.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all 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 application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The overall architecture of the supply chain financial method based on decentralized cross-chain provided by the invention is shown in figure 1.
The financial institution, the core enterprise and the upstream and downstream enterprises are used as organization members to construct the alliance chain, supply chain financial business is carried out on the alliance chain through intelligent contracts, supply chains of different alliance chains are opened through a decentralized cross-chain technology, the core enterprise of the supply chain among different industrial chains and the upstream and downstream enterprise account payable and receivable accounts are realized, the financing cost is reduced, and the problem of difficult financing is solved.
The invention mainly comprises a supply chain financial platform, a alliance chain management module, a trust management module, a core system module and a decentralized cross-chain module. The supply chain financial platform mainly comprises protocol management, access management, transaction management, trade auditing, inquiry statistics and the like. The credit granting management module mainly comprises enterprise credit granting and peer credit granting; the alliance chain management module mainly comprises secret key management, admission management, receivable and payable management, standing book management, transaction management and the like. The decentralized cross-chain module mainly comprises cross-chain management, certificate management, authority management and control, decentralized strategy, cross-chain communication and the like.
Design of first-step and second-step chain-crossing mechanism
The decentralized cross-chain architecture is shown in fig. 2.
Different industrial chains are opened on a supply chain through cross-chain, cross-chain authorization registration, identity management and access authority management are carried out according to business contracts, a cross-chain decentralized strategy is specified, a union chain of a single industrial chain carries out cross-chain communication through cross-chain agent nodes, and the cross-chain communication comprises three links: the method comprises the following steps that a cross-link 1, namely communication between a source link and an agent node, a cross-link 2, namely communication between the source link agent node and a destination link agent node, and a cross-link 3, namely communication between the agent node and the destination link node are formed, wherein each cross-link can be configured with a plurality of communication connections according to a decentralized strategy;
and the cross-chain agent node cross agent performs cross-chain authorization registration, cross-chain identity management, cross-chain verification, cross-chain routing, cross-chain standardized communication, cross-chain decentralized strategy management and the like according to the authority specified by the business contract on the supply chain.
The method comprises the steps of deploying a cross-chain management contract on an alliance link point of a single industry chain on a supply chain, performing cross-chain management according to the authority defined by a commercial contract on the supply chain, and specifically comprises cross-chain communication between the alliance link point and an agent node, cross-chain transaction verification, decentralized strategy verification, submission of cross-chain transaction to a target chain business contract, reception of a business contract execution result of the cross-chain transaction, transmission of the execution result to the agent node and the like.
The cross-chain management contract is responsible for identifying and verifying a decentralized strategy of communication between the cross and block chain nodes; the decentralized strategy is included during cross-chain registration, when cross-chain transaction is sent, the decentralized strategy is required to be met for the next transaction, for example, when a source chain registers to a cross gene, two nodes and more cross-chain transaction endorsements are required to be met for the decentralized strategy. The communication between the cross genes also needs to satisfy a decentralization strategy, the communication from the cross genes to the destination chain also needs to satisfy the decentralization strategy, the cross genes can verify the number of messages sent to the cross genes of the end chain according to the strategy during registration, for example, when the decentralization strategy is the message satisfying two or more cross genes, the messages of the same abstract of two or more endorsements of the cross genes of the end chain need to be received to consider the transaction to be effective. Thus the entire cross-link communication link: according to the method, decentralized strategies are realized among cross genes, and between the cross genes and block link points, so that the possibility of single-point action is prevented, and the high availability and the high safety of cross-chain are improved.
Design of two-step chain-spanning module
(a) Certificate management
The certificate management module generates a cross-chain CA root certificate and a cross-chain public and private key pair, the source chain CA root certificate issues the cross-chain certificate to a target chain by using a target chain public key, the target chain CA root certificate issues the cross-chain certificate to a source chain by using the source chain public key, the cross-chain safety is ensured by a cryptography mechanism, and the specific issuing flow is shown in FIG. 3.
(b) Registration
Cross-link rights and identity legitimacy verification are achieved through a registration authorization mechanism. Specifically, when a source chain needs to perform chain crossing with a destination chain, the source chain needs to register with the destination chain, and chain crossing can be performed after authorization is audited by the destination chain. And after the identity information and the chain information of the source chain are approved and authorized by the destination chain, the destination chain can be subjected to persistent storage. When a cross-chain transaction is initiated, the verification engine of the destination chain performs a validity check on the identity of the source chain.
The authority control management is carried out through a registration authorization mechanism, and the authority information of the chain can be specified during registration, such as the access authority of the chain, the contract read-write authority, the data read-write authority, the information acquisition range and the like. The transaction verification stage can be used for verifying, authority management and control can be flexibly carried out, and data safety and isolation among chains are guaranteed. The registration process is shown in fig. 4.
(c) Authority management and control
The authority control module is mainly realized through a registration authorization mechanism and a cryptography technology, authorization verification of other chains is needed when other chains are accessed, and isolation and protection of data are guaranteed while the chains are crossed. Specifically, when cross-chain communication is required before a blockchain, cross-chain certificates need to be mutually issued through a certificate management module, then registration is performed according to authority management requirements, such as access authority of a chain, access authority of an intelligent contract method, access authority of related data fields, and the like, then an opposite side performs auditing, if the registration is successful, registry information of a corresponding chain is generated, and related authority verification is performed on cross-chain transaction information during cross-chain transaction, wherein an authority management and control flow is shown in fig. 5.
(d) Cross-link communication
The cross-chain communication mainly carries out standardized processing on cross-chain communication messages, can meet the cross-chain communication of block chain platforms with different architectures, and can realize the access of the extensible block chain platform with any architecture in design.
(e) Transaction presence attestation
1. Acquiring the Merck tree of the block hash, and constructing and generating the Merck tree by itself if the Merck tree is not acquired
If the block is stored by adopting a Mercker tree structure, directly acquiring the Mercker tree of the current transaction as the existence certification of the transaction;
secondly, some block chain platform block storage does not adopt a Merck tree structure, and the block needs to be traversed to generate a Merck tree certificate of the block.
2. Verifying the existence certification, wherein the specific verification process comprises the following steps:
A. acquiring a hash value of the transaction;
B. obtaining a verification path of the transaction in the Mercker tree, and calculating a root hash of the Mercker tree;
C. the computed root hash is compared to the mercker tree root for presence proof in the cross-chain message, and if the same, the transaction is proved to be truly present, otherwise it is not present.
Cross-chain design between three or more supply chains
The cross-link communication flow between multiple supply chains is shown in fig. 6, and includes the following steps:
(1) certificate issuance
The certificate management module issues a cross-chain root certificate and a public and private key pair to the supply chain as required. The specific issuing rule is as follows: assuming that the chain A and the chain B are communicated with each other, the chain root certificate of the chain A issues a cross-chain certificate to the chain B by adopting a chain public key of the chain B; and the B chain root certificate issues a cross-chain certificate to the A chain by adopting the A chain public key. Then the B chain can use the root certificate to verify the cross-chain certificate of the message sent by the a chain, and similarly, the a chain can use the root certificate to verify the cross-chain certificate of the message sent by the B chain; meanwhile, the signature of the message digest is verified, so that cross-link authority management among supply chains is achieved, and communication safety is guaranteed.
(2) Cross-chain registration
A source chain of a alliance chain on a supply chain can perform cross-chain registration on a target chain, the cross-chain registration mainly comprises identity information, a verification rule, a decentralization strategy and the like of the source chain, after the registration is successful, a verification engine of the target chain can generate the verification rule of the chain, and then the legitimacy of cross-chain transaction and the decentralization strategy are verified according to the verification rule. Different verification rules are generated aiming at block chain platforms with different architectures, and different decentralization strategies are generated according to different registration information. And the identity information and the registration information of the source chain are stored persistently. The verification engine of the destination chain cross checks the registration information of the source chain, verifies the transaction according to the generated verification rule, and ensures the correctness of the transaction according to the decentralized strategy.
The federation chain on the supply chain requires authorization permission, so data right control on the chain is important. The invention discloses authority control of data access between alliance chains, which is mainly used for carrying out authority control management through registration information, and appointing related authorities such as read-write authority, information acquisition range, contract method calling authority and the like during registration. The control management of the supply chain data access rights can be realized in the checking phase.
(3) Identity and authentication rule management
Validation rules are used by a validation engine to validate presence and validity for cross-chain transactions. Because the verification rules of each chain are different due to the heterogeneity of each chain, when the source chain is required to be registered with the destination chain, the destination chain deploys and registers the corresponding verification rules, and records the identity information of the registration chain into the registration table. The identity of the chain can be verified when communication is carried out between different chains of the supply chain, the verification rules of the corresponding chain are matched to verify the existence and the validity of the transaction, and the related transaction is executed after the verification is passed.
(4) Inspection phase
The checking work of cross-chain transaction between supply chains comprises the following steps: whether the source chain generating the cross-chain transaction is registered or not, including source chain identity information, verification rules, whether the source chain has relevant access rights and the like.
(5) Verification phase
And checking the supply chain cross-chain transaction passing through, entering a verification stage, executing the verification stage by a verification engine, matching a verification rule in a registry of a destination chain through the source chain identity information of the transaction, and inputting the verification information, the verification rule and the cross-chain transaction of the transaction into the verification engine for verification. After the verification is passed, the transaction will enter the execution phase.
(6) Execution phase
And the supply chain cross-chain transaction enters an execution phase after passing verification, wherein the execution phase mainly comprises the transaction existence certification and transaction consistency guarantee method and the interaction flow. And if the transaction lock is unlocked within the threshold time, performing cross-chain transaction to realize privacy transaction between alliance chains of different industry supply chains.
(7) Result return
And finally, the destination chain constructs the result into return information and sends the return information to the source chain.
Four, decentralization strategy
(a) And (3) cross-chain registration: and acquiring decentralized strategies of the two links, and performing persistent storage in the cross-link management contract book and cross agent.
The decentralization strategy mainly comprises the following steps: ANY, MAJORITY, ALL, noutton;
ANY: the verification can be passed after any message sent by cross is received;
MAJORITY: the message sent by most crosssangent can be verified;
ALL: the message sent by all crossmessages can pass the verification only after being received;
NOUTOF: the message sent by the specified N crossmessages is received and can be verified.
The decentralized strategy includes the whole cross-link: block chain nodes to crossgene, crossgene to crossgene. Acquiring a strategy from a node to a cross agent in a registration message through a cross-link management contract and recording the strategy to an account book; the policy between crossgene and crossgene is obtained through the registration message and recorded in crossgene.
When a chain initiates a cross-chain transaction, registration information of the chain needs to be constructed, and the structure of the registration information is shown in the following table, and the information is used for an information structure when a source chain performs cross-chain registration to a destination chain:
Figure BDA0003232470710000111
Figure BDA0003232470710000121
(b) cross-chain transactions
When cross-chain transaction is carried out, the cross agent firstly receives the cross-chain transaction sent by the cross agent at the opposite end, the target chain cross agent verifies the number of the cross-chain transaction according to a decentralized strategy during registration, and if the strategy is met, the cross-chain transaction is submitted to a cross-chain management contract of the target chain; and when the cross-chain transaction with the same abstract of enough cross-chain endorsements is received, the verification is passed, the cross-chain transaction consensus in the chain is carried out, and the writing into an account book is executed after the consensus is completed. The destination chain executes the cross-chain transaction and returns the result, which is sent to the cross-chain management contract and then to the cross-chain of the source chain, and the decentralized strategy is consistent with the forward flow.
The verification process between crossgenes includes: collecting cross-chain transactions sent from the opposite end chain by the destination chain cross agent; verifying the cross-chain message digest and the signature information, and if the message digest is the same and the signature passes the verification, considering that the messages of different cross endorsements are received; and verifying different cross-link endorsement messages and a decentralized strategy aiming at the same cross-link transaction within a limited time T, submitting the cross-link endorsement messages to a cross-link management contract of a target chain if the verification is passed, otherwise, judging whether the time is out, returning overtime information if the time is out, and otherwise, continuously collecting the cross-link transaction sent by an opposite-end chain by the target chain cross-link transaction.
The verification process between crossgene and block link point includes: receiving a cross-chain transaction sent by cross contract; verifying the cross-chain message digest and the signature information, and if the message digest is the same and the signature passes, considering that the messages of different cross endorsements are received; and verifying different cross-link endorsement messages and the decentralized strategy aiming at the same cross-link transaction within a limited time T, if the verification is passed, carrying out consensus execution, otherwise, judging whether the verification is overtime, if the verification is overtime, returning overtime information, and otherwise, continuously receiving the cross-link transaction sent by the cross-link transaction by a cross-link management contract.
Supply chain financial flow based on decentralized cross-chain
(1) Decentralized-based cross-chain transaction management design
Based on a decentralized cross-chain mechanism, the invention designs and realizes the services of issuing, acceptance, guarantee, payment, pledge, cash and the like of accounts receivable in a supply chain, as shown in figure 7.
(2) Supply chain receivable account and issuance design based on decentralized cross-chain
A main supply chain receivables issuance process based on decentralized cross-chain is shown in fig. 8, which includes:
1. the receivable and receivable payment issuing party carries out receivable and receivable payment issuing operation through a supply chain financial platform based on decentralization;
2. the supply chain financial platform checks the issuing information, and the checking mainly comprises the verification of information such as identity verification of both transaction parties, trade background verification, issuing amount, issuing date and the like;
3. after the issuance verification is passed, the block chain transaction information is packaged into standard block chain transaction information based on decentralized cross-chain and sent to a block chain underlying network;
4. and carrying out value credible transfer based on the block chain network of the cross chain:
a. after the block chain bottom network receives the standard transaction information, the information is analyzed;
b. performing identity authentication and information authentication;
c. after the verification is passed, performing consensus execution;
d. if the transaction parties are both parties in the alliance chain, executing a business intelligent contract of the alliance chain, and issuing receivable payment to a payee; if the two parties are transaction parties of the cross-link network, entering a cross-link module, performing cross-link processes, such as identity verification, authority verification, cross-link transmission, cross-link decentralized strategy verification, transaction validity verification and the like, sending transaction information to a payee alliance chain, executing the transaction information after verification, and returning a result through cross-link.
(3) Supply chain receivable acceptance design based on decentralized cross-chain
Supply chain receivable acceptance based on decentralized cross-chain main flow is shown in fig. 9 and comprises:
1. the receivable accounts accepting party carries out receivable accounts accepting operation through a supply chain financial platform based on decentralization;
2. the supply chain financial platform checks the acceptance information, and mainly comprises the verification of the identity verification of both parties of the transaction, the verification of trade background, the verification of the acceptance amount, the acceptance date and other information;
3. after acceptance verification is passed, the block chain transaction information is packaged into standard block chain transaction information based on decentralized cross-chain and sent to a block chain underlying network;
4. and carrying out value credible transfer based on the block chain network of the cross chain:
a. after the block chain bottom network receives the standard transaction information, the information is analyzed;
b. performing identity authentication and information authentication;
c. after the verification is passed, performing consensus execution;
d. if the transaction parties are both parties in the alliance chain, executing a business intelligent contract of the alliance chain, and accepting the receivable payment to a payee; if the two parties are transaction parties of the cross-link network, entering a cross-link module, performing cross-link processes, such as identity verification, authority verification, cross-link transmission, cross-link decentralized strategy verification, transaction validity verification and the like, sending transaction information to a payee alliance chain, executing the transaction information after verification, and returning a result through cross-link.
(4) Supply chain receivable payment deposit design based on decentralized cross-chain
A main process of supply chain receivables deposit based on decentralized cross-chain is shown in fig. 10, which includes:
1. the bank party performs accounts receivable bank keeping operation through a supply chain financial platform based on decentralization;
2. the supply chain financial platform checks the guarantee and exchange information, and the verification mainly comprises the verification of the identity of both parties of the transaction, the verification of trade background, the verification of the guarantee and exchange amount, the verification of the guarantee and exchange date and other information;
3. after the acceptance verification is passed, the transaction information is packaged into standard block chain transaction information based on decentralized cross-chain and sent to a block chain underlying network;
4. and carrying out value credible transfer based on the block chain network of the cross chain:
a. after the block chain bottom network receives the standard transaction information, the information is analyzed;
b. performing identity authentication and information authentication;
c. after the verification is passed, performing consensus execution;
d. if the transaction parties are both parties in the alliance chain, executing a business intelligent contract of the alliance chain, and guaranteeing the receivable payment to a payee; if the two parties are transaction parties of the cross-link network, entering a cross-link module, performing cross-link processes, such as identity verification, authority verification, cross-link transmission, cross-link decentralized strategy verification, transaction validity verification and the like, sending transaction information to a payee alliance chain, executing the transaction information after verification, and returning a result through cross-link.
(5) Supply chain receivable payment design based on decentralized cross-chain
A main supply chain receivable payment process based on decentralized cross-chain is shown in fig. 11, which includes:
1. the payer performs accounts receivable payment operation through a supply chain financial platform based on decentralization;
2. the supply chain financial platform verifies the payment information, and the verification mainly comprises the verification of information such as identity verification of both transaction parties, trade background verification, payment amount, payment date and the like;
3. after the payment verification is passed, the payment verification is packaged into standard block chain transaction information based on decentralized cross-chain, and the standard block chain transaction information is sent to a block chain underlying network;
4. and carrying out value credible transfer based on the block chain network of the cross chain:
a. after the block chain bottom network receives the standard transaction information, the information is analyzed;
b. performing identity authentication and information authentication;
c. after the verification is passed, performing consensus execution;
d. if the transaction parties are both parties in the alliance chain, executing a business intelligent contract of the alliance chain, and paying the receivable payment to a payee; if the two parties are transaction parties of the cross-link network, entering a cross-link module, performing cross-link processes, such as identity verification, authority verification, cross-link transmission, cross-link decentralized strategy verification, transaction validity verification and the like, sending transaction information to a payee alliance chain, executing the transaction information after verification, and returning a result through cross-link.
(6) Supply chain receivable account pledge design based on decentralized cross-chain
The main flow of supply chain accounts receivable pledges based on decentralized cross-chain is shown in fig. 12, which includes:
1. the receivable pledge performs receivable pledge operations through a supply chain financial platform based on decentralization;
2. the supply chain financial platform verifies the pledge information, which mainly comprises the verification of the identity of both parties in transaction, the verification of trade background, the verification of pledge amount, pledge date and other information;
3. after the pledge passes verification, the pledge is packaged into standard block chain transaction information based on decentralized cross-chain and sent to a block chain underlying network;
4. and carrying out value credible transfer based on the block chain network of the cross chain:
a. after the block chain bottom network receives the standard transaction information, the information is analyzed;
b. performing identity authentication and information authentication;
c. after the verification is passed, performing consensus execution;
d. if the transaction parties are the transaction parties in the alliance chain, executing the business intelligent contract of the alliance chain, and mortgage the receivable funds to the payee; if the two parties are transaction parties of the cross-link network, entering a cross-link module, performing cross-link processes, such as identity verification, authority verification, cross-link transmission, cross-link decentralized strategy verification, transaction validity verification and the like, sending transaction information to a payee alliance chain, executing the transaction information after verification, and returning a result through cross-link.
(7) Supply chain receivable cash redemption design based on decentralized cross-chain
The main flow of supply chain accounts receivable redemption based on decentralized cross-chain is shown in fig. 13, which includes:
1. the cashing party carries out cashing operation through a supply chain financial platform based on decentralization;
2. the supply chain financial platform verifies the redemption information, which mainly comprises the verification of the identity of both transaction parties, the verification of trade background, redemption amount, redemption date and other information;
3. after the cashing verification passes, the block chain transaction information is packaged into standard block chain transaction information based on decentralized cross-chain and sent to a block chain underlying network;
4. and carrying out value credible transmission based on the cross-chain block chain network:
a. after the block chain bottom network receives the standard transaction information, the information is analyzed;
b. performing identity authentication and information authentication;
c. after the verification is passed, performing consensus execution;
d. if the transaction parties are transaction parties in the alliance chain, executing a business intelligent contract of the alliance chain, and cashing the receivable payment to a payee; if the two parties are transaction parties of the cross-link network, entering a cross-link module, performing cross-link processes, such as identity verification, authority verification, cross-link transmission, cross-link decentralized strategy verification, transaction validity verification and the like, sending transaction information to a payee alliance chain, executing the transaction information after verification, and returning a result through cross-link.
(8) Design is reviewed based on cross-chain trade background, as shown in fig. 14.
Chain deposit evidence on trade background materials:
1. the customer needs to upload the image pieces of the contract and the invoice when signing and issuing the receivable.
2. And performing OCR recognition on the image, and checking whether the invoice is true or false.
3. Each account receivable is associated with a specific contract and invoice, and the contract amount is deducted according to the account receivable amount.
4. The business authenticity of accounts receivable on a decentralized cross-chain supply chain financial platform is improved through uploading, auditing and deduction of the amount of trade background.
And (4) auditing trade background data:
1. performing on-chain queries through a supply chain financial platform based on a cross-chain;
2. establishing a query index based on accounts receivable;
3. sending the index information to a block chain network based on a cross chain for query:
a. if the result is in the chain of the local alliance, directly carrying out query operation in the chain;
b. and if the query is not the trade background of the alliance chain, performing cross-chain query operation.
Sixthly, core system module based on cross-chain
The system is mainly responsible for accounting processing, including reconciliation, clearing and the like of transactions among supply chain members.
Seventh, trust management module based on cross-chain
The method mainly comprises enterprise trust and peer trust, wherein if the trust is the trust of the alliance chain, the trust operation is directly carried out on the alliance chain, and if the trust is not the trust operation of the alliance chain, the trust operation is carried out through chain crossing.
Eight, alliance chain management module based on cross chain
If the member is a member in the local alliance chain, managing the member in the alliance chain, wherein the management comprises secret key management, admission management, receivable and payable management, standing book management, transaction management and the like; and if the members cross the chain, performing cross-chain management.
The above description is only a preferred embodiment of one or more embodiments of the present disclosure, and should not be taken as limiting the one or more embodiments of the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of one or more embodiments of the present disclosure should be included in the scope of protection of one or more embodiments of the present disclosure.

Claims (10)

1. A supply chain financial method based on decentralized cross-chain, comprising:
the method comprises the following steps that (1) a supply chain member is used as an alliance chain organization member to construct an alliance chain, supply chain financial business is conducted on the alliance chain through an intelligent contract, supply chains of different alliance chains are communicated through decentralized cross-chain, and the business of issuing, acceptance, guarantee, payment, quality assurance and cash of accounts to be received in the supply chain is achieved;
the single alliance chain is provided with a supply chain financial platform, an alliance chain management module, a credit granting management module and a core system module; realizing cross-link communication between the alliance chains through a decentralized cross-link module;
different industrial chains are communicated on a supply chain through cross-chain, cross-chain authorization registration, identity management and access authority management are carried out according to business contracts, a cross-chain decentralized strategy is specified, a union chain of a single industrial chain carries out cross-chain communication through cross-chain agent nodes, and the cross-chain communication comprises three links: the method comprises the following steps that communication is carried out between a source chain link and an agent node, communication is carried out between the source chain agent node and a destination chain agent node, communication is carried out between the agent node and the destination chain node, and each cross-chain link can be configured with a plurality of communication connections according to a decentralized strategy;
the cross-chain agent node performs cross-chain authorization registration, cross-chain identity management, cross-chain verification, cross-chain routing, cross-chain standardized communication and cross-chain decentralized strategy management according to the authority specified by the commercial contract on the supply chain;
the method comprises the steps of deploying a cross-chain management contract on an alliance link point of a single industrial chain on a supply chain, performing cross-chain management according to the authority defined by a commercial contract on the supply chain, and specifically comprises cross-chain communication between the alliance link point and an agent node, cross-chain transaction verification, decentralized strategy verification, submission of cross-chain transaction to a target chain business contract, reception of a business contract execution result of the cross-chain transaction, and transmission of the execution result to the agent node.
2. The supply chain financial method based on decentralized cross-chain according to claim 1, wherein the supply chain financial platform: the method comprises protocol management, admission management, transaction management, trade auditing and inquiry statistics;
the alliance chain management module: if the member is a member in the local alliance chain, managing the member in the alliance chain, wherein the management comprises secret key management, admission management, receivable and payable management, standing book management and transaction management; if the member is a cross-chain member, cross-chain management is carried out;
the credit granting management module: the enterprise trust and the peer trust are included, if the enterprise trust and the peer trust are the trust of the alliance chain, the trust operation is directly carried out, and if the enterprise trust and the peer trust are not the trust of the alliance chain, the trust operation is carried out through chain crossing;
the core system module: is responsible for accounting processing, including reconciliation and clearing of transactions among supply chain members;
the decentralized cross-chain module: including cross-chain management, certificate management, rights management, decentralized policies and cross-chain communication.
3. The supply chain financial method based on decentralized cross-chain according to claim 1, wherein the supply chain financial transaction based on decentralized cross-chain is implemented as follows:
(1) supply chain account receivable and payment issuing: the receivable and account issuing party carries out receivable and account issuing operation through a supply chain financial platform; the supply chain financial platform checks the issuing information, including the verification of the identity of both transaction parties, the verification of trade background, the issuing amount, the issuing date and other information; after the issuance verification is passed, packaging the information into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(2) supply chain receivable acceptance: the receivable acceptance and acceptance party carries out receivable acceptance and acceptance operation through a supply chain financial platform; the supply chain financial platform verifies the acceptance information, including the verification of the identity of both transaction parties, the verification of trade background, the verification of the acceptance amount, the acceptance date and other information; after acceptance verification is passed, packaging the information into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(3) supply chain receivable payment and guarantee: the bank-keeping party carries out the account receivable bank-keeping operation through the supply chain financial platform; the supply chain financial platform verifies the guarantee information, which mainly comprises the verification of the identity of both transaction parties, the verification of trade background, the verification of the guarantee amount, the guarantee date and other information; after the acceptance verification is passed, packaging the information into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(4) supply chain accounts receivable payment: the payer carries out accounts receivable payment operation through a supply chain financial platform; the supply chain financial platform verifies the payment information, and the verification mainly comprises the verification of information such as identity verification of both transaction parties, trade background verification, payment amount, payment date and the like; after the payment verification is passed, packaging the payment verification into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(5) supply chain receivables pledge: the receivable pledge performs receivable pledge operations through a supply chain financial platform based on decentralization; the supply chain financial platform verifies the pledge information, which mainly comprises the verification of the identity of both parties of the transaction, the verification of trade background, the verification of pledge amount, pledge date and other information; after the pledge passes verification, packaging the pledge into standard block chain transaction information based on decentralized cross-chain and sending the standard block chain transaction information to a block chain underlying network; performing value credible transfer based on a block chain network of a cross chain;
(6) supply chain receivable cash redemption: the cashing and paying party carries out cashing and paying operation through a supply chain financial platform; the supply chain financial platform verifies the cashing information, which mainly comprises the verification of the identity of both transaction parties, the verification of trade background, the verification of cashing amount, cashing date and other information; after the cashing verification passes, packaging the transaction information into standard block chain transaction information based on decentralized cross-chain, and sending the standard block chain transaction information to a block chain underlying network; and carrying out value credible transfer based on the cross-chain blockchain network.
4. The supply chain financial method based on decentralized cross-chain according to claim 3, wherein the trusted transfer of value over the cross-chain based blockchain network is performed as follows: after the block chain bottom network receives the standard transaction information, analyzing the information; then, identity authentication and information authentication are carried out, and consensus execution is carried out after the authentication is passed; if the business is both sides of the transaction in the alliance chain, executing the business intelligence contract of the alliance chain; if the two parties are trading parties of the cross-link network, entering a decentralized cross-link module to perform a cross-link process, sending the trading information to a payee alliance chain, executing the trading information after verification is passed, and returning a result through the cross-link.
5. The decentralized cross-chain based supply chain financial method according to claim 3, wherein the cross-chain based trade context review comprises:
(1) chain deposit evidence on trade background materials: the client needs to upload the image pieces of the contract and the invoice when signing and issuing accounts receivable; performing OCR recognition on the image, and checking whether the invoice is true or false; each account receivable is associated with a specific contract and an invoice, and the contract amount is deducted according to the account receivable amount; through uploading, auditing and deduction of the trade background, the business authenticity of accounts receivable on a decentralized cross-chain supply chain financial platform is improved;
(2) and (4) auditing trade background data: performing on-chain queries through a supply chain financial platform based on a cross-chain; establishing a query index based on accounts receivable; and sending the index information to a block chain network based on cross-chain for query.
6. The supply chain financial method based on decentralized cross-chain according to claim 1, wherein the communication between the agent nodes and between the agent node and the federation chain node is required to satisfy the decentralized strategy; the decentralization strategy comprises the following steps: ANY, MAJORITY, ALL, noutton;
ANY: the message sent by any agent node is received and can be verified;
MAJORITY: the message sent by most agent nodes is received and can be verified;
ALL: the messages sent by all the agent nodes are received and can pass the verification;
NOUTOF: the messages sent by the designated N agent nodes are received and can pass the verification.
7. The supply chain financial method based on decentralized and cross-chain as claimed in claim 1, wherein a federation source chain on the supply chain performs cross-chain registration with a destination chain, mainly including identity information, verification rules and decentralized strategy of the source chain, after the registration is successful, a verification engine of the destination chain generates the verification rules for the chain, and then verifies the legitimacy of cross-chain transaction and the decentralized strategy according to the verification rules; different verification rules can be generated aiming at block chain platforms with different architectures, and different decentralization strategies can be generated according to different registration information; and the identity information and the registration information of the source chain are stored persistently.
8. The supply chain financial method based on decentralized cross-chain as claimed in claim 1, wherein a federation chain on the supply chain requires authorization permission and control of data rights on the chain; the authority control of data access between alliance chains is mainly to control and manage the authority through registration information, relevant authorities including read-write authority, information acquisition range, contract method calling authority and the like are appointed during registration, and the control and management of the data access authority of a supply chain can be realized in a checking stage.
9. The supply chain financial method based on decentralized cross-chain as claimed in claim 1, wherein when decentralized cross-chain transaction is performed, the agent node first receives cross-chain transaction sent from the opposite agent node, the destination chain agent node verifies according to a decentralized strategy during registration, if the strategy is satisfied, the cross-chain transaction is submitted to a destination chain cross-chain management contract, the cross-chain management contract verifies according to the decentralized strategy during registration, if the strategy is satisfied, the verification is passed, the cross-chain transaction consensus in the chain is performed, and the writing into an account book is performed after the consensus is completed; the destination chain executes the cross-chain transaction, returns the result, and is sent to the destination chain agent node and then to the source chain agent node through the cross-chain management contract.
10. The supply chain financial method based on decentralized cross-chain as claimed in claim 1, wherein the decentralized policy validation between agent nodes is specifically: the target chain agent node collects cross-chain transactions sent by the opposite end chain; verifying the cross-link message digest and the signature information, and if the message digest is the same and the signature passes, considering that messages endorsed by different agent nodes are received; verifying endorsement messages of different agent nodes and a decentralization strategy aiming at the same cross-link transaction within a limited time T, and submitting the endorsement messages to a cross-link management contract of a target chain if the endorsement messages pass the verification;
the decentralized strategy verification between the agent node and the block chain node specifically comprises the following steps: receiving a cross-chain transaction sent by an agent node by a cross-chain management contract; verifying the cross-link message digest and the signature information, and if the message digest is the same and the signature passes, considering that messages endorsed by different agent nodes are received; and verifying endorsement messages of different agent nodes and a decentralization strategy aiming at the same cross-link transaction within a limited time T, and if the endorsement messages pass the verification, performing consensus execution.
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CN116366241A (en) * 2023-02-14 2023-06-30 北京交通大学 Decentralised Ethernet timing transaction privacy protection execution method
CN116523518A (en) * 2023-07-03 2023-08-01 中铱数字科技有限公司 Cross-channel data access method, system and storage medium based on blockchain
CN117938354A (en) * 2024-03-18 2024-04-26 中国信息通信研究院 Relay chain-based cross-chain transaction method and device, electronic equipment and storage medium

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107025602A (en) * 2017-02-24 2017-08-08 杭州象链网络技术有限公司 A kind of financial asset transaction system construction method based on alliance's chain
CN107038638A (en) * 2017-02-24 2017-08-11 杭州象链网络技术有限公司 A kind of equity registration transaction system construction method based on alliance's chain
CN108052530A (en) * 2017-11-10 2018-05-18 杭州云象网络技术有限公司 A kind of decentralization CA construction methods and its system based on alliance's chain
CN109146688A (en) * 2018-08-30 2019-01-04 广州立趣信息科技有限公司 A kind of supply chain financial application method based on block chain alliance chain technology
CN109615510A (en) * 2018-12-04 2019-04-12 国网辽宁省电力有限公司大连供电公司 A kind of supply chain finance based on block chain is multistage to increase letter method
CN110223178A (en) * 2019-06-06 2019-09-10 杭州趣链科技有限公司 It is a kind of for alliance's chain across catenary system and across chain method
CN110266655A (en) * 2019-05-30 2019-09-20 中国工商银行股份有限公司 A kind of across chain interconnected method, equipment and system based on block chain
WO2020010926A1 (en) * 2018-07-13 2020-01-16 山东小岛网络科技有限公司 Blockchain credit or digital certificate-based financing mode method
CN111461889A (en) * 2020-04-20 2020-07-28 同济大学 Cross-chain transaction system, method and storage medium for alliance blockchain

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107025602A (en) * 2017-02-24 2017-08-08 杭州象链网络技术有限公司 A kind of financial asset transaction system construction method based on alliance's chain
CN107038638A (en) * 2017-02-24 2017-08-11 杭州象链网络技术有限公司 A kind of equity registration transaction system construction method based on alliance's chain
CN108052530A (en) * 2017-11-10 2018-05-18 杭州云象网络技术有限公司 A kind of decentralization CA construction methods and its system based on alliance's chain
WO2020010926A1 (en) * 2018-07-13 2020-01-16 山东小岛网络科技有限公司 Blockchain credit or digital certificate-based financing mode method
CN109146688A (en) * 2018-08-30 2019-01-04 广州立趣信息科技有限公司 A kind of supply chain financial application method based on block chain alliance chain technology
CN109615510A (en) * 2018-12-04 2019-04-12 国网辽宁省电力有限公司大连供电公司 A kind of supply chain finance based on block chain is multistage to increase letter method
CN110266655A (en) * 2019-05-30 2019-09-20 中国工商银行股份有限公司 A kind of across chain interconnected method, equipment and system based on block chain
CN110223178A (en) * 2019-06-06 2019-09-10 杭州趣链科技有限公司 It is a kind of for alliance's chain across catenary system and across chain method
CN111461889A (en) * 2020-04-20 2020-07-28 同济大学 Cross-chain transaction system, method and storage medium for alliance blockchain

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113469572A (en) * 2021-07-22 2021-10-01 西南石油大学 Offshore platform electrical monitoring marker post equipment selection method
CN114897598A (en) * 2022-05-06 2022-08-12 浙商银行股份有限公司 Block chain asset transfer financing method and device based on cross-chain technology and storage medium
CN115456631A (en) * 2022-09-30 2022-12-09 佛山众陶联供应链服务有限公司 Block chain-based multi-level supply chain credit cross-level verification method and system
CN115456631B (en) * 2022-09-30 2023-07-21 佛山众陶联供应链服务有限公司 Multi-level supply chain credit cross-level verification method and system based on blockchain
CN116366241A (en) * 2023-02-14 2023-06-30 北京交通大学 Decentralised Ethernet timing transaction privacy protection execution method
CN116366241B (en) * 2023-02-14 2024-02-02 北京交通大学 Decentralised Ethernet timing transaction privacy protection execution method
CN116523518A (en) * 2023-07-03 2023-08-01 中铱数字科技有限公司 Cross-channel data access method, system and storage medium based on blockchain
CN116523518B (en) * 2023-07-03 2023-09-15 中铱数字科技有限公司 Cross-channel data access method, system and storage medium based on blockchain
CN117938354A (en) * 2024-03-18 2024-04-26 中国信息通信研究院 Relay chain-based cross-chain transaction method and device, electronic equipment and storage medium
CN117938354B (en) * 2024-03-18 2024-07-05 中国信息通信研究院 Relay chain-based cross-chain transaction method and device, electronic equipment and storage medium

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