CN111445209A - Block chain-based electronic contract signing method and device and storage medium - Google Patents
Block chain-based electronic contract signing method and device and storage medium Download PDFInfo
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Abstract
The invention discloses an electronic contract signing method and device based on a block chain and a storage medium. The method comprises the following steps: if the qualification of the signing party meets the preset regulation, writing the information of the signing party into the block chain network, sending the electronic contract to the signing party, acquiring and verifying the signature of each clause of the electronic contract by the signing party, if the signature is verified, acquiring the duration of the clause of the electronic contract read and signed by the signing party, if the duration reaches the preset duration, writing the signature, the acquired duration and the corresponding contract clause into the block chain network, and if the duration does not reach the preset duration, re-acquiring the duration until the preset duration is reached; and if the signature verification fails, the signature is acquired again until the verification passes. The method records the behavior of the signatory in the signing process of the electronic contract into the block chain, thereby ensuring that the whole signing process can be conveniently traced when disputes occur to the contract, and avoiding disputes or disputes from any aspect in the signing process of the signatory.
Description
Technical Field
The invention relates to the technical field of block chains, and discloses an electronic contract signing method and device based on a block chain and a storage medium.
Background
The general certificate is all right certificates which can be digitalized, and all the right certificates of human society, such as identity cards, academic diplomas, money, tickets, keys, entrance tickets, points and cards, stocks, bonds, accounts, ownership, qualification, certificates and the like, can be represented by a general certificate (token). As the blockchain technology provides effective technical support for the use of electronic money, various forms of evidence are produced based on the blockchain technology. In which more and more assets (such as equity, copyright, and bond) are being negotiable, forming a security type negotiable.
The electronic contract is an electronic agreement signed in an electronic form through an electronic information network, and occupies a place in the electronic business activity due to the characteristics of convenient transmission, cost saving and the like of the electronic contract.
When securities type certificates are traded based on the blockchain technology, the initiator and the contractor of the certificates are usually to adopt an electronic contract to define the right obligation relationship between two parties or multiple parties.
At present, the signing process of the electronic contract is generally as follows: the initiator uploads the electronic contract, signs the electronic contract and then sends the electronic contract to the signatory, after receiving the electronic contract, the signatory verifies the electronic contract and the signature information of the initiator and the like, finally signs the electronic contract and sends the signature to other nodes, after all the nodes on the block chain agree with the contract and the signature, all the information can be written into the block chain, and the fact that the information is unchangeable is formed. So that the signing process of the electronic contract is traceable.
However, in the above process, it is only traceable to the contract content and the signature, but it is not traceable to the behavior involved in the signing process, for example, the contractor checks the electronic contract and if not careful, some contract content is ignored. Therefore, the electronic contract signing process in the prior art has no comprehensive traceability, and when contract disputes occur, evidence can not be obtained from the content stored in the blockchain.
Disclosure of Invention
The invention provides an electronic contract signing method based on a block chain on one hand, which comprises the following steps:
acquiring information of an electronic contract signing party;
judging whether the qualification of the signatory meets preset regulations or not according to the information of the signatory;
if the qualification of the contracting party does not meet the preset regulation, the electronic contract is cancelled;
if the signatory accords with the preset regulation, writing the information of the signatory into the block chain network, and sending the electronic contract to a node corresponding to the signatory;
acquiring a signature of each clause of the electronic contract by the signatory;
verifying the signature;
if the signature passes the verification, acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party, if the acquired time length reaches the preset time length, writing the signature, the acquired time length and the corresponding contract clause into the block chain network, if the acquired time length does not reach the preset time length, sending a prompt message of carefully reading to the signing party, and re-acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party until the acquired time length reaches the preset time length;
and if the signature verification is not passed, sending re-signing information to the signatory, and re-acquiring the signature of the signatory on the contract clause until the signature verification is passed.
Preferably, the information of the subscriber includes identity information and communication information, and the identity information includes: the identification number, the passport number or the social security number, and the communication information includes a mobile phone number, an address, a fax and an electronic mail box.
Preferably, the determining, according to the information of the contractor, whether the qualification of the contractor meets a preset specification includes:
acquiring the electronic investment certificate of the signing party according to the identity information and the communication information of the signing party;
and inquiring whether the electronic investment certificate is real and effective through a third-party certificate verifying mechanism, if so, judging that the contracting party conforms to a preset rule, and otherwise, judging that the contracting party does not conform to the preset rule.
Preferably, the writing the information of the subscriber into the block chain network includes: and calculating a hash value of the information of the signatory and writing the hash value into the block chain network.
Preferably, the sending the electronic contract to the node corresponding to the subscriber includes:
receiving an electronic contract;
and splitting the electronic contract into a plurality of clauses by adopting a preset format.
Preferably, the verifying the signature specifically includes: the signature is verified in the order of the terms of the contract.
Preferably, the verifying the signature includes:
broadcasting the signature into nodes of the block chain,
if all nodes of the block chain agree on the signature, the signature verification is passed, otherwise, the signature verification is failed.
Preferably, after the signing of each clause of the electronic contract by the contracting party is acquired, the method further includes the steps of:
arranging the signatures of the terms according to the acquisition sequence to obtain a signature sequence;
comparing whether the signature sequence is consistent with the corresponding clause sequence,
if the two items are consistent, the signing process of each item of the electronic contract is not backtracked, otherwise, the signing process of each item of the electronic contract is backtracked, the backtracking information is encrypted, and the ciphertext is written into the block where the item is located.
A second aspect of the present invention provides an electronic contract signing apparatus based on a block chain, including:
the information acquisition module is used for acquiring the information of the electronic contract signing party;
the judging module is used for judging whether the qualification of the signatory accords with the preset regulation or not according to the information of the signatory;
the revocation module is used for revoking the electronic contract when the qualification of the signing party does not meet the preset specification;
the information writing module is used for writing the information of the signing party into the block chain network when the qualification of the signing party meets the preset specification;
the contract sending module is used for sending the electronic contract to a node corresponding to the contractor when the qualification of the contractor meets a preset specification;
the signature acquisition module is used for acquiring the signature of each clause of the electronic contract by the signatory;
the signature verification module is used for verifying the signature;
the signing management module is used for acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party when the signature verification is passed, writing the signature, the acquired time length and the corresponding contract clause into the block chain network if the acquired time length reaches the preset time length, sending a prompt message of carefully reading to the signing party if the acquired time length does not reach the preset time length, and re-acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party until the acquired time length reaches the preset time length; and when the signature verification fails, sending re-signing information to the signing party, and re-acquiring the signature of the signing party on the contract clause until the signature verification passes.
A third aspect of the present invention provides a storage medium including instructions for implementing the block chain-based electronic contract signing method described above.
Drawings
Fig. 1 is a schematic flow chart of an electronic contract signing method based on a block chain according to the present invention;
fig. 2 is a schematic structural diagram of the block chain-based electronic contract signing apparatus according to the present invention.
Detailed description of the preferred embodiments
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
The method provided by the invention can be implemented in the following terminal environment, and the terminal can comprise one or more of the following components: a processor, a memory, and a display screen. Wherein the memory has stored therein at least one instruction that is loaded and executed by the processor to implement the block chain-based electronic contract signing method described in the embodiments below.
A processor may include one or more processing cores. The processor connects various parts within the overall terminal using various interfaces and lines, performs various functions of the terminal and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory, and calling data stored in the memory.
The Memory may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). The memory may be used to store instructions, programs, code sets, or instructions.
The display screen is used for displaying user interfaces of all the application programs.
In addition, those skilled in the art will appreciate that the above-described terminal configurations are not intended to be limiting, and that the terminal may include more or fewer components, or some components may be combined, or a different arrangement of components. For example, the terminal further includes a radio frequency circuit, an input unit, a sensor, an audio circuit, a power supply, and other components, which are not described herein again.
As shown in fig. 1, an embodiment of the present invention provides an electronic contract signing method based on a block chain, including the steps of:
s101, acquiring information of an electronic contract signing party;
s102, judging whether the qualification of the signatory accords with preset regulations or not according to the information of the signatory;
s103, if the qualification of the contracting party does not meet the preset regulation, the electronic contract is cancelled;
s104, if the signatory accords with preset regulations, writing the information of the signatory into the block chain network, and sending the electronic contract to a node corresponding to the signatory;
s105, acquiring a signature of each clause of the electronic contract by the signatory;
s106, verifying the signature;
s107, if the signature verification is passed, acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party, if the acquired time length reaches the preset time length, writing the signature, the acquired time length and the corresponding contract clause into the block chain network, if the acquired time length does not reach the preset time length, sending a prompt message of carefully reading to the signing party, and re-acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party until the acquired time length reaches the preset time length;
and S108, if the signature verification is not passed, sending re-signing information to the signatory, and re-acquiring the signature of the signatory on the contract clause until the signature verification is passed.
In the method, whether the electronic contract signing party accords with the identity of the securities type general certificate investor is firstly verified, a certain rule can be set for the identity of the investor in the implementation process, if the identity of the investor is verified, the signing party is judged to accord with the preset rule, namely the signing party accords with the identity of the securities type general certificate investor, and then the electronic contract is signed. Therefore, in the method, the contracting parties of the electronic contract are ensured to be in accordance with the identity of the securities type general certificate investor, and the investor in accordance with the identity can be, for example, familiar with investment rules, know related laws, know conventional contract contents or bear certain investment risk and the like. The invention reduces the probability of the electronic contract dispute by verifying the identity of the investor. In addition, by writing the information of the signatory into the block link network, the signatory information stored in the block link network can be used as evidence when disputes occur in the electronic contract by utilizing the non-tamper property of the block link network, and the acquisition of the evidence is facilitated.
After the identity of the signatory accords with the preset rule, the electronic contract is sent to the node corresponding to the signatory, the signatory signs the same terms, and after the system receives the signature of the signatory, the system verifies the signature so as to ensure the correctness of the signature. Meanwhile, the signature passing the verification is written into the block chain, so that the non-tampering property of the signature is ensured, and the evidence obtaining work when the electronic contract is disputed is facilitated.
In the invention, the time length of the electronic contract clause corresponding to the signing and reading of the signing party is also obtained and stored, the time length is compared with the preset time length, and only when the time length reaches the preset time length, the next operation can be carried out, for example, the reading and signing of the next clause are carried out. If the time length of the electronic contract clauses corresponding to the signature read and signed by the signing party is found not to reach the preset time length in the implementation process, the signing party sends prompt information to prompt that the time length of the read clauses does not reach the preset time length, needs to read or carefully read again so as to fully know risks and the like, and obtains the reading time length again, and the reading and signing operation of the next clause can be allowed until the reading time length reaches the preset time length. The preset duration can be set according to actual conditions, can be set according to collected historical data, can be adjusted according to updating of the historical data, and can also be artificially set after reading and signing time of most investors is known and analyzed. In the method, the obtained reading time is written into the block chain network, so that the situation that a signatory cannot dispute and repudiate the risk specified in the electronic contract due to short reading time and incomplete knowledge can be ensured when the electronic contract disputes.
In an embodiment of the present invention, the information of the subscriber may include identity information and communication information, and the identity information may include: identification number, passport number or social security number, and the communication information may include a mobile phone number, an address, a fax, and an electronic mail box.
As will be appreciated by those skilled in the art, the information of the subscriber may also be some other valid information. This information is provided and stored in the blockchain as required when the subscriber enters blockchain registration.
Further, after the identity information and the communication information of the signing party are obtained, the electronic investment certificate of the signing party can be obtained according to the information; the electronic investment certificate is issued by a third party authority to qualify an issuer for an investment. Therefore, in order to check whether the electronic investment certificate of the signing party is valid, in the invention, a third-party verification mechanism is used for checking whether the electronic investment certificate is true and valid, if the electronic investment certificate is true and valid, the signing party is judged to have the investment qualification, and if the electronic investment certificate cannot be verified to be true and valid, or the electronic investment certificate is verified to be invalid, the signing party is judged not to have the investment qualification.
In a preferred embodiment of the present invention, when it is determined that a contractor qualifies for an investment, a hash value of the contractor's information may be calculated and written into the blockchain network. By calculating the hash value, the information of the signatory can be hidden, and the information leakage of the signatory is avoided.
In a preferred embodiment of the present invention, the sending the electronic contract to a node corresponding to the subscriber includes:
receiving an electronic contract;
splitting the electronic contract into a plurality of clauses by adopting a preset format;
and sending the clauses to a node corresponding to the signatory.
In embodiments of the present invention, the electronic contract may be received by a third party node designated by the contractor or an intelligent contract specifically used to fulfill the split contract.
In the implementation process, a template for splitting the contract can be preset, and after the electronic contract is received, each clause of the contract is split into a plurality of independent files according to the template. Specifically, the node can automatically complete the splitting action according to a preset template, and can also push display operation information, and the splitting is completed by user definition. In the splitting process, each clause can be split into independent files respectively, and can also be split after being combined and merged according to the importance degree and the like of each clause. As an example, there may be, for example, six terms in the contract, where each term may be split into separate files, forming 6 terms. And combining the clauses 1 and 2 into one clause according to the importance degree of each clause, and splitting the clause 1 and the clause 2 and the rest 4 clauses into independent files respectively to form 5 clauses.
After the whole contract is divided into the plurality of terms and sent to the signatory, the signatory reads and signs each term, and therefore the signatory can obtain evidence of the reading and signing process of each term in the dispute evidence obtaining process.
In a preferred embodiment of the invention the signature is verified in the order of the terms of the contract.
As an embodiment, each split clause may be put into a first queue, and after a subscriber signs a clause, the signature may be put into a second queue according to the order of the clauses, so that when verifying the signature, only the second queue needs to be traversed in order until all signatures are verified.
In the implementation process, the signing party can sign the clauses in sequence or not in the clause sequence, but the obtained signatures are put into the second queue in the clause sequence, so that the sequence of the signatures is consistent with the sequence of the clauses, and the signatures can be verified in the sequence of the clauses of the contract when the second queue is traversed in sequence for signature verification.
When the signing party signs according to contract clauses, the signing and signature verification processes can be simultaneously carried out by adopting the method, and the system processing speed is improved. Moreover, when the signature verification cannot pass the condition that the signature needs to be submitted again by the signing party, the condition that the signatures of all subsequent terms are invalid and the efficiency is influenced when the signature verification cannot pass once can be avoided.
In this embodiment of the present invention, the verifying the signature includes:
broadcasting the signature into nodes of the block chain,
if all nodes of the block chain agree on the signature, the signature verification is passed, otherwise, the signature verification is failed.
In the method, the signature is verified by using the consensus mechanism of the block chain, so that the method is simple and easy to implement and is convenient for obtaining evidence.
In a preferred embodiment of the present invention, after the acquiring the signature of the contracting party on each clause of the electronic contract, the method further includes the steps of:
arranging the signatures of the terms according to the acquisition sequence to obtain a signature sequence;
comparing whether the signature sequence is consistent with the corresponding clause sequence,
if the two items are consistent, the signing process of each item of the electronic contract is not backtracked, otherwise, the signing process of each item of the electronic contract is backtracked, the backtracking information is encrypted, and the ciphertext is written into the block where the item is located.
In the method, whether the signing process of each clause is backtracked by a signing party is judged by comparing whether the obtained signing sequence is consistent with the corresponding clause sequence, and if backtracking exists, backtracking information is stored in a block chain.
In the invention, the signing process of the signing party is recorded by monitoring whether backtracking exists in the signing process of the electronic contract.
In addition to the above-mentioned recording of whether the signing process has a backtracking behavior, other behaviors of the signing party in the electronic contract signing process can be monitored, and corresponding information is recorded in the block chain, so that when disputes occur in the contract, the whole signing process can be conveniently traced, which is equivalent to recording and reproducing the whole process of signing the contract at that time, thereby obtaining evidence of signing the electronic contract, and avoiding dispute or dispute made by the signing party from any aspect in the signing process.
Example two
As shown in fig. 2, another aspect of the present invention further includes a functional module architecture completely corresponding to the foregoing method flow, that is, an embodiment of the present invention provides an electronic contract signing apparatus based on a block chain, including:
an information obtaining module 201, configured to obtain information of an electronic contract signing party;
a judging module 202, configured to determine, according to the information of the contracting party, whether the qualification of the contracting party meets a preset specification;
a revocation module 203, configured to revoke the electronic contract when the qualification of the subscriber does not meet a preset rule;
an information writing module 204, configured to write the information of the subscriber into the blockchain network when the qualification of the subscriber meets a preset specification;
a contract sending module 205, configured to send the electronic contract to a node corresponding to the contractor when the qualification of the contractor meets a preset specification;
a signature obtaining module 206, configured to obtain a signature of each clause of the electronic contract by the contractor;
a signature verification module 207 for verifying the signature;
the signing management module 208 is configured to, when the signature verification is passed, acquire a duration of the electronic contract term corresponding to the signature read and signed by the signing party, if the acquired duration reaches a preset duration, write the signature, the acquired duration and the corresponding contract term into the block chain network, and if the acquired duration does not reach the preset duration, send a prompt message of carefully reading to the signing party, and re-acquire a duration of the electronic contract term corresponding to the signature read and signed by the signing party until the acquired duration reaches the preset duration; and when the signature verification fails, sending re-signing information to the signing party, and re-acquiring the signature of the signing party on the contract clause until the signature verification passes.
Further, the information of the subscriber includes identity information and communication information, and the identity information includes: the identification number, the passport number or the social security number, and the communication information includes a mobile phone number, an address, a fax and an electronic mail box.
Further, the determining module 202 is specifically configured to
Acquiring the electronic investment certificate of the signing party according to the identity information and the communication information of the signing party;
and inquiring whether the electronic investment certificate is real and effective through a third-party certificate verifying mechanism, if so, judging that the contracting party conforms to a preset rule, and otherwise, judging that the contracting party does not conform to the preset rule.
Further, the information writing module 204 is configured to calculate a hash value of the information of the subscriber when the qualification of the subscriber meets a preset specification, and write the hash value into the blockchain network.
Further, the contract sending module 205 is specifically configured to,
receiving an electronic contract;
splitting the electronic contract into a plurality of clauses by adopting a preset format;
and sending the clauses to a node corresponding to the signatory.
Further, the signature verification module 207 is specifically configured to
Broadcasting the signature into nodes of the block chain,
if all nodes of the block chain agree on the signature, the signature verification is passed, otherwise, the signature verification is failed.
Further, the electronic contract signing system also comprises a signing backtracking module which is used for obtaining the signing of each clause of the electronic contract by the signing party,
arranging the signatures of the terms according to the acquisition sequence to obtain a signature sequence;
comparing whether the signature sequence is consistent with the corresponding clause sequence,
if the two items are consistent, the signing process of each item of the electronic contract is not backtracked, otherwise, the signing process of each item of the electronic contract is backtracked, the backtracking information is encrypted, and the ciphertext is written into the block where the item is located.
The device provided by the embodiment of the present invention can be implemented by the block chain-based electronic contract signing method provided by the first embodiment, and specific implementation methods, functions, effects, and the like can be referred to the description in the first embodiment, and are not described herein again.
The embodiment of the invention also provides a storage medium, which comprises instructions used for realizing the method in the first embodiment of the invention.
The embodiment of the present invention further provides an apparatus, which includes a processor and a memory connected to the processor, where the memory stores a plurality of instructions, and the instructions can be loaded and executed by the processor, so that the processor can execute the method described in the first embodiment.
The device and the storage medium provided by the embodiment of the invention correspond to the method one by one, so the device and the storage medium also have the beneficial technical effects corresponding to the method.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An electronic contract signing method based on a block chain is characterized by comprising the following steps:
acquiring information of an electronic contract signing party;
judging whether the qualification of the signatory meets preset regulations or not according to the information of the signatory;
if the qualification of the contracting party does not meet the preset regulation, the electronic contract is cancelled;
if the signatory accords with the preset regulation, writing the information of the signatory into the block chain network, and sending the electronic contract to a node corresponding to the signatory;
acquiring a signature of each clause of the electronic contract by the signatory;
verifying the signature;
if the signature passes the verification, acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party, if the acquired time length reaches the preset time length, writing the signature, the acquired time length and the corresponding contract clause into the block chain network, if the acquired time length does not reach the preset time length, sending a prompt message of carefully reading to the signing party, and re-acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party until the acquired time length reaches the preset time length;
and if the signature verification is not passed, sending re-signing information to the signatory, and re-acquiring the signature of the signatory on the contract clause until the signature verification is passed.
2. The block chain-based electronic contract signing method according to claim 1, wherein the information of the signing party includes identity information and communication information, the identity information includes: the identification number, the passport number or the social security number, and the communication information includes a mobile phone number, an address, a fax and an electronic mail box.
3. The block chain-based electronic contract signing method according to claim 2, wherein said determining whether the qualification of said signatory meets preset regulations based on said signatory information comprises:
acquiring the electronic investment certificate of the signing party according to the identity information and the communication information of the signing party;
and inquiring whether the electronic investment certificate is real and effective through a third-party certificate checking mechanism, if so, judging that the qualification of the signing party meets the preset regulation, and otherwise, judging that the qualification of the signing party does not meet the preset regulation.
4. The blockchain-based electronic contract signing method according to claim 1, wherein the writing of the information of the subscriber into the blockchain network includes: and calculating a hash value of the information of the signatory and writing the hash value into the block chain network.
5. The block chain-based electronic contract signing method according to claim 1, wherein said sending the electronic contract to the node corresponding to the signatory comprises:
receiving an electronic contract;
splitting the electronic contract into a plurality of clauses by adopting a preset format;
and sending the clauses to a node corresponding to the signatory.
6. The block chain-based electronic contract signing method according to claim 1, wherein said verifying said signature specifically comprises: the signature is verified in the order of the terms of the contract.
7. The block chain-based electronic contract signing method according to claim 6, wherein said verifying said signature comprises:
broadcasting the signature into nodes of the block chain,
if all nodes of the block chain agree on the signature, the signature verification is passed, otherwise, the signature verification is failed.
8. The method for signing an electronic contract based on a block chain according to claim 1, wherein after the signing of each clause of the electronic contract by the signing party is acquired, the method further comprises the steps of:
arranging the signatures of the terms according to the acquisition sequence to obtain a signature sequence;
comparing whether the signature sequence is consistent with the corresponding clause sequence,
if the two items are consistent, the signing process of each item of the electronic contract is not backtracked, otherwise, the signing process of each item of the electronic contract is backtracked, the backtracking information is encrypted, and the ciphertext is written into the block where the item is located.
9. An electronic contract signing apparatus based on a blockchain, comprising:
the information acquisition module is used for acquiring the information of the electronic contract signing party;
the judging module is used for judging whether the qualification of the signatory accords with the preset regulation or not according to the information of the signatory;
the revocation module is used for revoking the electronic contract when the qualification of the signing party does not meet the preset specification;
the information writing module is used for writing the information of the signing party into the block chain network when the qualification of the signing party meets the preset specification;
the contract sending module is used for sending the electronic contract to a node corresponding to the contractor when the qualification of the contractor meets a preset specification;
the signature acquisition module is used for acquiring the signature of each clause of the electronic contract by the signatory;
the signature verification module is used for verifying the signature;
the signing management module is used for acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party when the signature verification is passed, writing the signature, the acquired time length and the corresponding contract clause into the block chain network if the acquired time length reaches the preset time length, sending a prompt message of carefully reading to the signing party if the acquired time length does not reach the preset time length, and re-acquiring the time length of the electronic contract clause corresponding to the signature read and signed by the signing party until the acquired time length reaches the preset time length; and when the signature verification fails, sending re-signing information to the signing party, and re-acquiring the signature of the signing party on the contract clause until the signature verification passes.
10. A storage medium characterized in that it comprises instructions for implementing the block chain-based electronic contract signing method according to any one of claims 1 to 8.
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| CN117011048A (en) * | 2023-07-25 | 2023-11-07 | 明亚保险经纪股份有限公司 | Online entrusting protocol signing method, system, equipment and medium |
| CN117240473A (en) * | 2023-09-22 | 2023-12-15 | 中移互联网有限公司 | Electronic contract signing method, electronic contract signing device, electronic equipment and storage medium |
| CN117252690A (en) * | 2023-11-17 | 2023-12-19 | 杭州钱袋数字科技有限公司 | Loan contract online signing method and system |
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