CN115713440A - Electronic contract operation management system and method based on block chain - Google Patents
Electronic contract operation management system and method based on block chain Download PDFInfo
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- CN115713440A CN115713440A CN202211441232.1A CN202211441232A CN115713440A CN 115713440 A CN115713440 A CN 115713440A CN 202211441232 A CN202211441232 A CN 202211441232A CN 115713440 A CN115713440 A CN 115713440A
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Abstract
The invention discloses an electronic contract operation management system and method based on a block chain, which comprises the following steps: the contract drafting module is used for receiving the input electronic contract drafting and pushing a contract approval task; the contract execution module is used for receiving and issuing approved electronic contracts, storing the electronic contracts under a chain through a chain up-down cooperative storage execution mode, and anchoring and executing the electronic contracts on the chain through intelligent contracts; the contract execution module carries out operations of changing, disputing, handling and removing on the electronic contract, sends an approval transaction, pushes an approval task, sends an obtained approval signature to the intelligent contract through the transaction, and changes the state of the electronic contract; and storing the electronic contract after the change operation under the chain by an uplink and downlink cooperative storage and change mode of the chain, and adding the electronic contract change page to the original intelligent contract by an intelligent contract and a contract number on the chain for anchoring and executing. And reliable and credible management of the contract is realized, and the consistency of data is ensured and the data cannot be falsified.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to an electronic contract operation management system and method based on block chains.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
An electronic contract is a computer-interpretable technical expression defined as a set of obligations to be fulfilled between parties, the obligation definitions between the parties being encoded in electronic form. However, the existing electronic contract management system cannot fully realize reliable management of electronic contracts.
On one hand, the complete signing of the electronic contract requires multiparty cooperation in the aspect of business, but the operations in all links are still independent and mutually opaque no matter the traditional paper contract or the current electronic contract, so that the authenticity and consistency of contract data are difficult to ensure;
on the other hand, from the storage perspective, the existing electronic contract system generally adopts a centralized storage architecture and a database-based storage mode, in such a mode, the security of the electronic contract depends on the central server, which causes the stored contract data to have risks of information leakage and data falsification, and in the mode, there is no perfect mechanism to monitor and record the access and formulating processes of the contract, and when disputes occur to the contract content, it is difficult to demonstrate evidence and pursue responsibility.
Disclosure of Invention
In order to solve the problems, the invention provides an electronic contract operation management system and method based on a block chain, which are used for marking all operations in the life cycle of an electronic contract on the chain, realizing reliable and credible management of the contract, ensuring that data under the chain is consistent and can not be falsified through a data storage scheme cooperated with the data under the chain, and reducing the overhead of storage and transmission on the chain.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides an electronic contract operation management system based on a block chain, including: the system comprises a contract drafting module, a contract execution module, a block chain and a down-chain storage network;
the contract drafting module is used for receiving the input electronic contract drafting and pushing a contract approval task;
the contract execution module is used for receiving and issuing approved electronic contracts, storing the electronic contracts under the chain through a chain up-down cooperative storage execution mode, and anchoring and executing the electronic contracts on the chain through intelligent contracts;
the contract execution module carries out operations of changing, disputing and removing on an electronic contract in execution, sends operation data to be executed to an under-link storage network, sends operation transaction to be executed to an intelligent contract, pushes an approval task to an approver, sends an obtained approval signature to the intelligent contract through transaction, and the intelligent contract automatically changes the state of the electronic contract according to the transaction;
the contract execution module performs handling operation on the electronic contract in execution, sends handling transaction to the intelligent contract and performs corresponding electronic contract state change;
and the contract execution module stores the electronic contract change page under the chain in a chain through the chain up-down cooperative storage and change mode of the electronic contract after the change operation is executed, and attaches the electronic contract change page to the original intelligent contract through the intelligent contract and the contract number on the chain for anchoring and execution.
As an alternative embodiment, the process of issuing the approved electronic contract by the contract execution module includes:
processing the text document of the electronic contract by taking a page as a unit to construct a Mercker tree;
storing the electronic contract fitting sentence and the Mercker tree into a down-link storage network, and receiving a down-link storage index obtained by a data hash value;
and compiling contract terms of the electronic contract, the data hash value of the Mercker tree and the under-chain storage index into the intelligent contract, and sending the intelligent contract to the block chain for automatic execution in the form of the intelligent contract, wherein the state of the electronic contract is in execution.
As an alternative embodiment, when performing the change operation, the specific process of the link uplink and downlink cooperative storage and change mode includes:
constructing a new Mercker tree according to the electronic contract change page;
storing the electronic contract change page, the new Mercker tree and the change instruction file to a down-link storage network, and associating the electronic contract change page, the new Mercker tree and the change instruction file with the original electronic contract through the electronic contract number;
compiling the data hash value of the new Mercker tree into a new intelligent contract, associating the new intelligent contract with the original intelligent contract through the electronic contract number, and sending the new intelligent contract serving as an additional contract to a block chain;
and sending a change approval transaction, changing the contract state of the original intelligent contract into approval, pushing an approval task to an approver, sending an approval signature transaction to the intelligent contract after obtaining the signature of the approver, and changing the electronic contract state into execution.
As an alternative embodiment, the dispute operation is executed by the following steps:
receiving an input contract dispute description file and storing the contract dispute description file into a down-link storage network;
sending dispute approval transactions including the down-link storage index, and changing the electronic contract state into approval;
and pushing an approval task to an approver, sending an approval signature transaction to an intelligent contract after the approver obtains the signature, and changing the state of the electronic contract into an execution state.
As an alternative embodiment, the execution of the release operation includes:
receiving an input contract release instruction file and storing the contract release instruction file into a down-link storage network;
sending a release approval transaction containing a release contract certification index to an intelligent contract, and changing the state of the electronic contract into approval;
and pushing the approval task to an approver, sending the approval signature transaction to an intelligent contract after the approver obtains the signature of the approver, and changing the state of the electronic contract into a relieved state.
As an alternative embodiment, the execution of the transaction operation includes:
for the fulfilled electronic contract, entering contract confirmation information, contract execution condition information, a contract executor signature on the entered information and executing a related evidence accessory, and storing the signature as an official certificate in a down-link storage network;
and sending the transaction containing the executor signature and the storage index under the transaction certification chain to the intelligent contract, and changing the electronic contract state into the completed state.
As an alternative embodiment, the electronic contract imitation includes a contract number, a contract type, a contract specific amount, an objective, a contractor, a contract abstract and a contract text file.
As an optional implementation manner, the electronic contract operation management system further includes a contract monitoring module, and the contract monitoring module is used for realizing the comprehensive query of the standing book trace and the electronic contract information of the electronic contract full-period operation.
As an alternative embodiment, the blockchain includes smart contracts and transaction ledgers;
anchoring the electronic contract in a blockchain in the form of an intelligent contract, wherein key information of the electronic contract exists in the form of a contract field, the content of the intelligent contract is not falsifiable and is automatically executed, and the contract state can be maintained and changed in the form of issuing a new transaction;
the transaction account book records all operations of issuing, changing, dispute, transacting, removing and machine account marking of the electronic contract.
As an alternative implementation, the offline storage network is configured to truthfully store contract plans, contract change data, contract dispute data, contract transaction data, contract release data, and contract execution ledger, perform data query based on the data hash value as a unique index and an identifier of the offline storage data, and link the offline storage index.
In a second aspect, the present invention provides an electronic contract operation management method based on a block chain, including:
receiving an input electronic contract imitation and pushing a contract approval task;
receiving approved electronic contracts for issuing, storing the electronic contracts under the chain through an uplink and downlink cooperative storage execution mode, and anchoring and executing the electronic contracts on the chain through intelligent contracts;
changing, disputing and removing the electronic contract in execution, sending operation data to be executed to a down-link storage network, sending operation transaction to be executed to an intelligent contract, pushing an approval task to an approver, sending an obtained approval signature to the intelligent contract through transaction, and automatically changing the state of the electronic contract according to the transaction by the intelligent contract;
carrying out handling operation on the executed electronic contract, sending handling transaction to the intelligent contract, and carrying out corresponding electronic contract state change;
and storing the electronic contract after the change operation under the chain by an uplink and downlink cooperative storage and change mode of the chain, and adding the electronic contract change page to the original intelligent contract by an intelligent contract and a contract number on the chain for anchoring and executing.
In a third aspect, the present invention provides an electronic device comprising a memory and a processor, and computer instructions stored on the memory and executed on the processor, wherein when the computer instructions are executed by the processor, the method of the second aspect is performed.
In a fourth aspect, the present invention provides a computer readable storage medium for storing computer instructions which, when executed by a processor, perform the method of the second aspect.
Compared with the prior art, the invention has the following beneficial effects:
in order to solve the problems of data authenticity and consistency under multi-party collaboration, information leakage and data tampering of a centralized storage architecture and the like in the conventional electronic contract management system, the invention provides a block chain-based electronic contract operation management system, which makes use of the characteristics of block chain decentralized whole-network consensus, consistency, non-tampering and data public traceability to determine the management and access authority of each participant, leaves all operations in the electronic contract life cycle on a chain, realizes reliable and credible management of the contract, ensures that the data under the chain is consistent and non-tampering through a data storage scheme under the chain cooperation, and reduces the overhead of storage and transmission on the chain.
The invention provides an electronic contract operation management system and method based on a block chain, which are used for chaining electronic contracts and marking the whole-course chains of issuing, executing, accessing and the like of the contracts, thereby realizing the flow credible management of the electronic contracts from initiation to transaction and improving the business transaction efficiency and the supervision quality.
The invention provides an electronic contract operation management system and method based on a block chain, which utilize an intelligent contract technology of the block chain to anchor an electronic contract in the block chain in an intelligent contract form, realize automatic execution and account behavior tracking trace of states such as contract initiation, drafting, execution, transaction and the like without depending on a third party, and realize credibility of electronic contract data.
The invention provides an electronic contract operation management system and method based on a block chain, and provides an electronic contract data storage scheme for chain uplink and downlink cooperation, wherein summary information of an electronic contract is stored on a chain, a formulated contract original file and other process data are stored in a downlink storage network, a tamper-proof storage index is provided for the chain, data consistency and non-tampering of the electronic contract are ensured, and storage and transmission expenses on the block chain are reduced.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a block chain-based electronic contract operation management system framework diagram provided in embodiment 1 of the present invention;
fig. 2 is a flow chart of contract issuance execution provided in embodiment 1 of the present invention;
FIG. 3 is a flow chart of contract change execution provided in embodiment 1 of the present invention;
fig. 4 is a flow chart of executing contract dispute according to embodiment 1 of the present invention;
FIG. 5 is a flow chart of contract completion execution provided in embodiment 1 of the present invention;
fig. 6 is a flow chart of contract release execution provided in embodiment 1 of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprises" and "comprising", and any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
The present embodiment provides an electronic contract operation management system based on a block chain, as shown in fig. 1, including: the system comprises a contract drafting module, a contract execution module, a contract monitoring module, a block chain and a down-link storage network;
the contract drafting module is used for receiving the input electronic contract drafting and pushing a contract approval task;
the contract execution module is used for receiving approved electronic contracts for issuing, storing the electronic contracts under the chain through an uplink and downlink cooperative storage execution mode, and anchoring and executing the electronic contracts on the chain through intelligent contracts;
the contract execution module carries out operations of changing, disputing and removing on an electronic contract in execution, sends operation data to be executed to an under-link storage network, sends operation transaction to be executed to an intelligent contract, pushes an approval task to an approver, sends an obtained approval signature to the intelligent contract through transaction, and the intelligent contract automatically changes the state of the electronic contract according to the transaction;
the contract execution module performs handling operation on the electronic contract in execution, sends handling transaction to the intelligent contract and performs corresponding electronic contract state change;
and the contract execution module stores the electronic contract change page under the chain in a chain through the chain up-down cooperative storage and change mode of the electronic contract after the change operation is executed, and attaches the electronic contract change page to the original intelligent contract through the intelligent contract and the contract number on the chain for anchoring and execution.
In this embodiment, the contract drafting module is configured to receive an entered electronic contract drafting, push a contract approval task to an approver, and change an electronic contract state into "approved" after the approver finishes approval.
The electronic contract imitation includes contract number, type, contract specific amount, target, contracting party, contract abstract, contract text file and other attachments.
In this embodiment, the contract execution module executes operations including: contract issuing, contract changing, contract dispute, contract transacting and contract releasing;
specifically, the method comprises the following steps:
the contract issuing is used for sending newly issued approved electronic contracts to the block chain to be executed in an intelligent contract mode; as shown in fig. 2, the specific implementation process is as follows:
(1) Processing the text document of the electronic contract by taking a page as a unit to construct a Mercker tree;
(2) Storing the electronic contract fitting sentence and the Mercker tree into a down-link storage network, and receiving a down-link storage index which is fed back by the down-link storage network and is obtained by a data hash value;
(3) And compiling contract terms of the electronic contract, the data hash value of the Mercker tree and the under-chain storage index into the intelligent contract, and sending the intelligent contract to the block chain in the form of the intelligent contract for automatic execution, wherein the electronic contract state of the intelligent contract is 'executing'.
The contract terms comprise contract numbers, storage indexes, contract abstracts, contract signing time, contract validity periods, contract states and the like.
The contract modification is used for modifying the electronic contract whose electronic contract status is "executing" and needs to be modified, and the electronic contract after the modification operation is stored and modified through chain uplink and downlink collaboration, as shown in fig. 3, the specific implementation process is as follows:
(1) Constructing a new Mercker tree according to the electronic contract change page;
(2) Storing the electronic contract change page, the new Mercker tree and the change instruction file to a down-link storage network, and associating the electronic contract change page, the new Mercker tree and the change instruction file with the original electronic contract through the electronic contract number;
(3) Compiling the data hash value of the new Mercker tree into a new intelligent contract, associating the new intelligent contract with the original intelligent contract through the electronic contract number, and sending the new intelligent contract serving as an additional contract to a block chain;
(4) And sending a change approval transaction, changing the contract state of the original intelligent contract into 'approval', pushing an approval task to an approver, sending an approval signature transaction to the intelligent contract after obtaining the signature of the approver, and changing the electronic contract state into 'execution'.
The contract dispute is used for processing the electronic contract which is in the execution state and has dispute; as shown in fig. 4, the specific implementation process is as follows:
(1) Receiving an input contract dispute description and a related file, and storing the contract dispute description and the related file into a down-link storage network;
(2) Sending a dispute transaction to the intelligent contract, and changing the electronic contract state into 'in approval', wherein the transaction comprises a storage index under a dispute data link;
(3) Pushing the approval task to an approver;
(4) And after the approver approves the signature, sending the approval signature transaction to the intelligent contract, and changing the contract state into 'executing'.
The contract transaction is used for finishing and archiving the electronic contract which is finished to be fulfilled; as shown in fig. 5, the specific implementation process is as follows:
(1) For the fulfilled electronic contract, entering contract confirmation information, contract execution condition information, a contract executor signature on the entered information, executing a relevant evidence accessory and the like, and storing the information as an official certificate to a down-link storage network;
(2) And sending the transaction containing the signature of the executor, the transaction certification storage index and other information to the intelligent contract, and changing the contract state into 'finished'.
The contract release is used for releasing the electronic contract which needs to be released and has the electronic contract state of 'executing'; as shown in fig. 6, the specific implementation process is as follows:
(1) Receiving an input contract release description and a related release file as a contract release proof, and storing the contract release description and the related release file into a down-link storage network;
(2) Sending a de-approval transaction containing a de-approval contract certification index to an intelligent contract, and changing the contract state into 'in-approval';
(3) Pushing the approval task to an approver;
(4) And after the signature of the approver, sending the signature transaction of the approver to a contract, and changing the contract state into 'released'.
In this embodiment, the electronic contract operation management system further includes a contract monitoring module, where the contract monitoring module is used to implement ledger trace reservation and comprehensive query;
the machine account trace keeping is used for recording the execution condition of the electronic contract according to the month to form a machine account, the machine account is stored to the under-chain storage network periodically, and meanwhile, the machine account under-chain storage index is linked up, so that the whole operation process trace keeping is realized, and the information can be traced.
The comprehensive inquiry is used for comprehensively counting the number of the electronic contracts and the total amount of the electronic contracts, and carrying out multi-caliber, multi-level and multi-type comprehensive inquiry counting on the electronic contract information according to contract names, numbers, contract states, types, creation, execution departments, contract creation dates and the like.
In this embodiment, the block chain includes: intelligent contracts and transaction ledgers;
the intelligent contract is an electronic contract code running on an electronic contract block chain, the electronic contract is anchored in the block chain in the form of the intelligent contract, key information of the electronic contract, such as a contract number, a storage index under the chain, a contract state and the like, all exist in the form of contract fields, the contract state of some fields can be maintained and changed by issuing new transactions, the content of the intelligent contract cannot be tampered and automatically executed, and the safety and reliability of the electronic contract are guaranteed.
The transaction account book records all operations of electronic contracts such as issuing, changing, dispute, transaction, removing, machine account mark and the like of the electronic contracts, the operation records are maintained jointly through the whole network and cannot be tampered, and the operation history records can be traced.
In this embodiment, the offline storage network is a P2P distributed storage network, preferably an IPFS storage network, and is configured to truthfully store contract pseudo-script data, contract change data, contract dispute data, contract transaction data, contract release data, and contract execution ledger data, perform data query based on a data hash value as a unique index and an identifier of the offline storage data, link the index, and ensure consistency and non-falsification of the electronic contract data.
Example 2
The embodiment provides an electronic contract operation management method based on a block chain, which includes:
receiving an input electronic contract imitation and pushing a contract approval task;
receiving and issuing approved electronic contracts, storing the electronic contracts under a chain through a chain up-down cooperative storage execution mode, and anchoring and executing the electronic contracts on the chain through intelligent contracts;
changing, disputing and removing the electronic contract in execution, sending operation data to be executed to a down-link storage network, sending operation transaction to be executed to an intelligent contract, pushing an approval task to an approver, sending an obtained approval signature to the intelligent contract through transaction, and automatically changing the state of the electronic contract according to the transaction by the intelligent contract;
carrying out handling operation on the executed electronic contract, sending handling transaction to the intelligent contract, and carrying out corresponding electronic contract state change;
and storing the electronic contract after the change operation under the chain by an uplink and downlink cooperative storage and change mode of the chain, and adding the electronic contract change page to the original intelligent contract by an intelligent contract and a contract number on the chain for anchoring and executing.
In further embodiments, there is also provided:
an electronic device comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, the computer instructions when executed by the processor performing the method described in embodiment 2. For brevity, no further description is provided herein.
It should be understood that in this embodiment, the processor may be a central processing unit CPU, and the processor may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate arrays FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include both read-only memory and random access memory, and may provide instructions and data to the processor, and a portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.
A computer readable storage medium storing computer instructions which, when executed by a processor, perform the method described in embodiment 2.
The method in embodiment 2 may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.
Those of ordinary skill in the art will appreciate that the various illustrative elements, i.e., algorithm steps, described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. An electronic contract operation management system based on a block chain, comprising: the system comprises a contract drafting module, a contract execution module, a block chain and a down-chain storage network;
the contract drafting module is used for receiving the input electronic contract drafting and pushing a contract approval task;
the contract execution module is used for receiving approved electronic contracts for issuing, storing the electronic contracts under the chain through an uplink and downlink cooperative storage execution mode, and anchoring and executing the electronic contracts on the chain through intelligent contracts;
the contract execution module carries out operations of changing, disputing and removing on an electronic contract in execution, sends operation data to be executed to an under-link storage network, sends operation transaction to be executed to an intelligent contract, pushes an approval task to an approver, sends an obtained approval signature to the intelligent contract through transaction, and the intelligent contract automatically changes the state of the electronic contract according to the transaction;
the contract execution module performs handling operation on the electronic contract in execution, sends handling transaction to the intelligent contract and performs corresponding electronic contract state change;
and the contract execution module stores the electronic contract change page under the chain in a chain through the chain up-down cooperative storage and change mode of the electronic contract after the change operation is executed, and attaches the electronic contract change page to the original intelligent contract through the intelligent contract and the contract number on the chain for anchoring and execution.
2. The block chain-based electronic contract operation management system according to claim 1, wherein the process of issuing approved electronic contracts by the contract execution module includes:
processing the text document of the electronic contract by taking a page as a unit to construct a Mercker tree;
storing the electronic contract fitting sentence and the Mercker tree into a down-link storage network, and receiving a down-link storage index obtained by a data hash value;
and compiling contract terms of the electronic contract, the data hash value of the Mercker tree and the under-chain storage index into the intelligent contract, and sending the intelligent contract to the block chain for automatic execution in the form of the intelligent contract, wherein the state of the electronic contract is in execution.
3. The system according to claim 1, wherein the specific process of the chain uplink and downlink cooperative storage and change mode when performing the change operation comprises:
constructing a new Mercker tree according to the electronic contract change page;
storing the electronic contract change page, the new Mercker tree and the change instruction file to a down-link storage network, and associating the electronic contract change page, the new Mercker tree and the change instruction file with the original electronic contract through the electronic contract number;
compiling the data hash value of the new Mercker tree into a new intelligent contract, associating the new intelligent contract with the original intelligent contract through the electronic contract number, and sending the new intelligent contract serving as an additional contract to a block chain;
and sending change approval transaction, changing the contract state of the original intelligent contract into approval, pushing an approval task to an approver, sending the approval signature transaction to the intelligent contract after obtaining the signature of the approver, and changing the electronic contract state into execution.
4. The block chain-based electronic contract operation management system according to claim 1, wherein the dispute operation is performed by a process including:
receiving an input contract dispute description file and storing the contract dispute description file into a down-link storage network;
sending dispute approval transactions containing the down-link storage index, and changing the electronic contract state into approval;
the approval task is pushed to an approver, the approver signature is obtained, the approval signature transaction is sent to an intelligent contract, and the state of the electronic contract is changed into the execution;
the execution process of the release operation comprises the following steps:
receiving an input contract release instruction file and storing the contract release instruction file into a down-link storage network;
sending a release approval transaction containing a release contract certification index to an intelligent contract, and changing the state of the electronic contract into approval;
and pushing the approval task to an approver, sending the approval signature transaction to an intelligent contract after the approver obtains the signature of the approver, and changing the state of the electronic contract into a relieved state.
5. The block chain-based electronic contract operation management system according to claim 1, wherein the execution of the handling operation includes:
for the fulfilled electronic contract, entering contract confirmation information, contract execution condition information, a contract executor signature on the entered information and executing a related evidence accessory, and storing the signature as an official certificate in a down-link storage network;
and sending the transaction including the signature of the executor and the storage index under the transaction certification chain to the intelligent contract, and changing the electronic contract state into the completed transaction.
6. The block chain-based electronic contract operation management system according to claim 1, wherein the electronic contract draft includes a contract number, a contract type, a contract specific amount, a bid, a contractor, a contract abstract, and a contract body document.
7. The block chain-based electronic contract operation management system according to claim 1, further comprising a contract monitoring module, wherein the contract monitoring module is configured to implement comprehensive query of ledger trace and electronic contract information of the electronic contract in a full-period operation;
the blockchain includes intelligent contracts and a transaction ledger;
anchoring the electronic contract in a blockchain in the form of an intelligent contract, wherein key information of the electronic contract exists in the form of a contract field, the content of the intelligent contract is not falsifiable and is automatically executed, and the contract state is maintained and changed in the form of issuing a new transaction;
the transaction book records all operations of issuing, changing, dispute, handling, removing and machine account marking of the electronic contract;
the offline storage network is used for credibly storing contract plans, contract change data, contract dispute data, contract transaction data, contract release data and contract execution ledger, performing data query by taking the data hash value as a unique index and an identifier of the offline storage data, and linking the offline storage index.
8. An electronic contract operation management method based on a block chain is characterized by comprising the following steps:
receiving an input electronic contract draft, and pushing a contract approval task;
receiving and issuing approved electronic contracts, storing the electronic contracts under a chain through a chain up-down cooperative storage execution mode, and anchoring and executing the electronic contracts on the chain through intelligent contracts;
changing, disputing and removing the electronic contract in execution, sending operation data to be executed to a down-link storage network, sending operation transaction to be executed to an intelligent contract, pushing an approval task to an approver, sending an obtained approval signature to the intelligent contract through transaction, and automatically changing the state of the electronic contract according to the transaction by the intelligent contract;
carrying out handling operation on the executed electronic contract, sending handling transaction to the intelligent contract, and carrying out corresponding electronic contract state change;
and storing the electronic contract after the change operation under the chain by an uplink and downlink cooperative storage and change mode of the chain, and adding the electronic contract change page to the original intelligent contract by an intelligent contract and a contract number on the chain for anchoring and executing.
9. An electronic device comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, the computer instructions when executed by the processor performing the method of claim 8.
10. A computer-readable storage medium storing computer instructions which, when executed by a processor, perform the method of claim 8.
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| CN202211441232.1A CN115713440A (en) | 2022-11-17 | 2022-11-17 | Electronic contract operation management system and method based on block chain |
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| CN202211441232.1A CN115713440A (en) | 2022-11-17 | 2022-11-17 | Electronic contract operation management system and method based on block chain |
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