CN113849566A - Litigation evidence storing and storing system based on block chain - Google Patents
Litigation evidence storing and storing system based on block chain Download PDFInfo
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- CN113849566A CN113849566A CN202111133278.2A CN202111133278A CN113849566A CN 113849566 A CN113849566 A CN 113849566A CN 202111133278 A CN202111133278 A CN 202111133278A CN 113849566 A CN113849566 A CN 113849566A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2228—Indexing structures
- G06F16/2255—Hash tables
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/18—Legal services; Handling legal documents
Abstract
The invention relates to the technical field of block chains, in particular to a litigation evidence storing and storing system based on a block chain, which comprises a service data acquisition module, a checking module and a matching module, the system comprises a storage module, a certificate storage module and a notarization module, wherein the business data acquisition module acquires business data and certificates, the checking module checks whether the business data and the certificates are complete, the matching module matches the business data and the certificates acquired by the business data acquisition module according to users and businesses, the first acquired business data and the first acquired certificates are packaged into a storage packet, newly added business data and certificates are packaged into a supplement packet, the certificate storage module extracts hash values of the storage packet and the supplement packet to upload block chain storage, the corresponding storage packet or supplement packet is stored by associating the block height and the block hash value, and the notarization module submits the storage packet and the supplement packet to a notarization position to acquire a notarization certificate. The substantial effects of the invention are as follows: the reliability of the evidence is improved, and the evidence can be extracted conveniently and quickly.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a litigation evidence storing and storing system based on a block chain.
Background
With the development of economy and the rise of internet finance, the petty loan business is rapidly developed and forms a certain scale. The small loan is mainly served for enterprises in three farmers, middle and small enterprises in China. The establishment of the small loan company reasonably integrates some folk funds, standardizes the folk loan market, and effectively solves the problem of difficult financing of the enterprises in the three farmers and the middle and small enterprises. Small credit mainly provides a continuous credit service with a small amount to low-income groups and micro enterprises, and is basically characterized by small amount, no guarantee and no mortgage. Meanwhile, small loans also have the problems of dispersion of users and services and difficulty in risk management and control. Because the involved amount is small, the benefit of adopting judicial means to urge collection is not high. The judicial announcement has high delivery rate and difficult judgment and execution. And the loan service data is dispersedly stored in respective service systems of different channels such as a counter, an audit department, a loan APP and the like, and is not stored and managed in a centralized way, and the data format and the management regulation are different. Even if the treatment is determined by adopting a judicial approach, the staff of the basic level network points are difficult to integrate and obtain all the relevant data and the evidence data of the business, thereby further increasing the difficulty of the judicial treatment and reducing the efficiency. Resulting in the judicial treatment of the lack of deterrence to loan users with overdue debts. Therefore, it is necessary to develop a technical scheme capable of effectively improving the judicial disposal efficiency.
For example, chinese patent CN111241520A, published 2020, 6.5.5, discloses a judicial evidence processing method and device based on block chaining evidence storage, wherein the judicial evidence processing method includes: when detecting that a target borrower performs borrowing transaction operation, acquiring all target electronic data originals related to the borrowing transaction operation; processing a target electronic data original to acquire target abstract data corresponding to the target electronic data original; and sending the target abstract data to a block chaining evidence storage platform for chaining storage. The technical scheme can improve the judicial effectiveness of electronic data and reduce the workload of a judicial organization for collecting and believing electronic evidence, but cannot help improve the problem that related business data are dispersed in different systems.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem of low collection efficiency of the small-amount claim dispute evidence at present. The litigation evidence storing and storing system based on the block chain is provided, and the efficiency and the reliability of evidence collection are improved by storing the business related data and the evidence in a correlation mode and storing the evidence in time.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a litigation evidence storing and storing system based on a block chain comprises a business data acquisition module, a checking module, a matching module, a storage module, a evidence storing module and a notarization module, wherein the business data acquisition module is in butt joint with a business system to acquire business data and evidence, the checking module checks whether the business data and the evidence are complete, if the business data and the evidence are incomplete, an alarm is sent out, the matching module matches the business data and the evidence acquired by the business data acquisition module according to users and businesses, associates the related business data and the evidence of the same business of the same user, packs the first acquired business data and the evidence into a storage packet, packs the newly added business data and the evidence into an additional packet, transmits the user number and the business number associated with the storage packet and the additional packet to the storage module, and the evidence storing module extracts the hash value of the storage packet and the additional packet and uploads the block chain storage, and associating the corresponding block height and the block hash value with the corresponding storage packet or the corresponding supplementary packet for storage, submitting the storage packet and the supplementary packet to a notarization place by the notarization module to obtain a notarization certificate, and associating the notarization certificate with the corresponding storage packet or the corresponding supplementary packet for storage.
Preferably, the check module stores a service data directory and a credential directory, associates service data with entries in the service data directory, associates credentials with entries in the credential directory, determines that the service data and the credentials are complete if the entries in the service data directory and the credential directory are associated with corresponding service data or credentials, and otherwise, sends an alarm if there is an entry in the service data directory or the credential directory that is not associated with corresponding service data or credentials.
Preferably, the document is in a picture format, the inspection module establishes an identification model for each entry in a document directory, the service data acquisition module inputs the document into the identification model when acquiring a new document, and if the identification fails, an alarm is given and the document is returned, and the document is submitted again after being checked and corrected by a service handling staff.
Preferably, the method for establishing the recognition model includes: the method comprises the steps of manually checking certificates and marking entries to form a sample picture, dividing the sample picture into squares after the sample picture reaches a preset number, calculating the similarity of the sample picture in each square, marking the squares with the similarity exceeding a preset threshold as template squares, averaging pixel values in the template squares to obtain a template area and a template area image, inputting the certificates into a recognition model, equally dividing the squares by the recognition model, calculating the similarity between the certificates in the template area and the template area image, judging the certificates to be correct if the similarity exceeds the preset threshold, otherwise, judging the certificates to be wrong if the similarity is equal to or lower than the preset threshold, sending an alarm, and returning the certificates.
Preferably, the storage module includes a receiving node and a plurality of storage nodes, the storage nodes have a sequence, the receiving node receives a storage packet and an augmentation packet, the receiving node assigns an identifier to the storage packet, the augmentation packet shares the identifier with the corresponding storage packet and assigns an augmentation number, the receiving node splits the storage packet or the augmentation packet into a plurality of sub-packets, the sub-packets have a preset size, associates the sub-packets with the identifier and the augmentation number, the sub-packets have numbers, arranges the sub-packets in an inverted order according to the numbers, the receiving node and the storage nodes respectively store preset address functions, inputs of the address functions are a serial number and an offset value, outputs of the address functions are storage addresses, sets the values of the serial numbers as the number of the sub-packets, and sends the arranged sub-packets and the numbers to a first storage node, the storage nodes allocate storage addresses by themselves, store the sub-data packets on the allocated storage addresses, subtract one from the serial number, send the storage addresses to the next storage node, the receiving node sends the serial number and the next sub-data packet to the next storage node, the subsequent storage nodes execute the storage step until all the sub-data packets are stored, and the storage step comprises the following steps: the storage node distributes a storage address by itself, the storage node calculates to obtain an offset value according to the received storage address, the received sequence number and an address function, the sub-data packet is associated with the offset value to be stored, the storage node continuously sends the storage address to the next storage node, the sequence number is reduced by one, the receiving node sends the sequence number and the next sub-data packet to the next storage node, finally the storage node storing the sub-data packet sends the corresponding storage address and the sequence number to the receiving node, the receiving node calculates to obtain the offset value according to the storage address and the sequence number, and the offset value is associated with the identifier to be stored.
Preferably, the storage node opens up a plurality of storage blocks in a storage space, the size of each storage block corresponds to the size of each sub-data packet, the storage blocks are allocated with index numbers, the index numbers are crop storage addresses, and the index numbers are integers.
Preferably, the address functions stored by the receiving nodes and the storage nodes are different, the address functions are stored after being encrypted by the public keys of the corresponding receiving nodes or storage nodes, and when the address functions are used, the address functions are decrypted by the private keys of the corresponding receiving nodes or storage nodes and then read into the memory, and are destroyed after being used.
The substantial effects of the invention are as follows: the business data is synchronized through the business data acquisition module, the related business is stored in a related mode through the matching module, and the business data and the evidence are stored by means of the block chain, so that the reliability of the evidence is improved, and the evidence is extracted conveniently and quickly; the checking module checks the integrity and correctness of the business data and the evidence to improve the availability of the evidence; and the safety of business data and evidence storage is improved by adopting improved dispersed storage.
Drawings
Fig. 1 is a schematic diagram of a litigation-evidence-storage system according to an embodiment.
Fig. 2 is a schematic view of a service data directory according to an embodiment.
FIG. 3 is a diagram illustrating a credential directory according to an embodiment.
Fig. 4 is a schematic diagram illustrating a method for creating a recognition model according to an embodiment.
FIG. 5 is a diagram illustrating a storage method of a second memory module according to an embodiment.
Wherein: 10. the system comprises a business system, 20, a business data acquisition module, 30, a check module, 31, a business data catalogue, 32, business data, 33, a certificate catalogue, 34, a certificate, 40, a matching module, 50, a storage module, 60, a certificate storage module, 70, a block chain, 80 and a notarization module.
Detailed Description
The following provides a more detailed description of the present invention, with reference to the accompanying drawings.
The first embodiment is as follows:
a litigation evidence storing and storing system based on a block chain 70, please refer to FIG. 1, which comprises a service data obtaining module 20, a checking module 30, a matching module 40, a storage module 50, a evidence storing module 60 and a notarization module 80, wherein the service data obtaining module 20 is connected with a service system 10 in an abutting mode to obtain service data 32 and evidence 34, the checking module 30 checks whether the service data 32 and the evidence 34 are complete, if not, an alarm is sent, the matching module 40 matches the service data 32 and the evidence 34 obtained by the service data obtaining module 20 according to users and services, associates the related service data 32 and the evidence 34 of the same service of the same user, packs the first obtained service data 32 and the evidence 34 into a storage packet, packs the newly added service data 32 and evidence 34 into an additional packet, and transmits the storage packet and the additional packet to the storage module 50 in association with the user and service number, the certificate storage module 60 extracts the hash values of the storage packets and the supplementary packets, uploads the hash values of the storage packets and the supplementary packets to the blockchain 70 for storage, associates the corresponding block heights with the hash values of the blocks to store the corresponding storage packets or supplementary packets, submits the storage packets and the supplementary packets to a notarization place to obtain notarization certificates, and associates the notarization certificates with the corresponding storage packets or supplementary packets for storage.
The checking module stores a business data directory 31 and a credential directory 33, please refer to fig. 2 and fig. 3, the checking module associates the business data 32 with entries in the business data directory 31, associates the credential 34 with entries in the credential directory 33, determines that the business data 32 and the credential 34 are complete if the entries in the business data directory 31 and the credential directory 33 are associated with corresponding business data 32 or credentials 34, and otherwise, issues an alarm if the entries in the business data directory 31 or the credential directory 33 are not associated with corresponding business data 32 or credentials 34.
In this embodiment, the credential is in a picture format, the inspection module establishes an identification model for each entry in the credential directory, the service data acquisition module inputs the credential into the identification model when obtaining a new credential, and if the identification fails, an alarm is issued and the credential is returned, and the credential is submitted again after being checked and corrected by a service clerk.
Referring to fig. 4, a method for establishing a recognition model includes: step a 01) manually reviewing credentials 34 and marking entries to form a sample picture; step A02), when the number of the sample pictures reaches a preset number, dividing the sample pictures into squares; step A03) calculating the similarity of the sample picture in each square; step A04) marking the square with similarity exceeding a preset threshold as a template square; step A05) averaging pixel values in the template grids to obtain a template area and a template area image; step A06), when the document is input into the recognition model, the recognition model divides the document into squares; step A07) calculating the similarity between the certificate in the template area and the image in the template area, if the similarity exceeds the preset threshold, then judging the certificate is correct, otherwise, if the similarity is equal to or lower than the preset threshold, then judging the certificate is wrong, sending an alarm, and returning the certificate.
The beneficial technical effects of this embodiment do: the business data is synchronized through the business data acquisition module, the related business is stored in a related mode through the matching module, and the business data and the evidence are stored by means of the block chain, so that the reliability of the evidence is improved, and the evidence is extracted conveniently and quickly; the checking module checks the integrity and correctness of the business data and the evidence to improve the availability of the evidence.
Example two:
in this embodiment, a memory module is specifically improved on the basis of the first embodiment. In this embodiment, the storage module 50 includes a receiving node and a plurality of storage nodes, and the storage nodes have an order. The receiving node and the storage node execute the following steps to store the storage packet and the supplement packet. Referring to fig. 5, the method includes: step B01) the receiving node receives the storage packet and the supplement packet, the receiving node distributes the identification for the storage packet, the supplement packet shares the identification with the corresponding storage packet and distributes supplement number; step B02), the receiving node divides the storage packet or the supplement packet into a plurality of sub-data packets, the sub-data packets have preset sizes, the sub-data packets are associated with the identification and the supplement number, the sub-data packets have the number, and the sub-data packets are arranged in the reverse order of the number; step B03), the receiving node and the storage node respectively store a preset address function, the input of the address function is a serial number and an offset value, and the output of the address function is a storage address; step B04) setting the value of the serial number as the number of the sub-data packets, sending the arranged sub-data packets and the serial number to a first storage node, allocating storage addresses by the storage node, and storing the sub-data packets on the allocated storage addresses; step B05), the sequence number is reduced by one, the storage address is sent to the next storage node, the receiving node sends the sequence number and the next sub data packet to the next storage node, and the subsequent storage node executes the storage step until all the sub data packets are stored; step B06) storage step: the storage node allocates a storage address by itself, calculates to obtain an offset value according to the received storage address, the sequence number and the address function, stores the sub-data packet associated offset value, and continuously sends the storage address to the next storage node; step B07), the serial number is reduced by one, and the receiving node sends the serial number and the next sub data packet to the next storage node; and step B08), the storage node which finally stores the sub data packet sends the corresponding storage address and the sequence number to the receiving node, the receiving node calculates and obtains the deviant according to the storage address and the sequence number, and the deviant is associated with the identifier and stored. The address functions stored by the receiving nodes and the storage nodes are different, the address functions are stored after being encrypted by the public keys of the corresponding receiving nodes or the corresponding storage nodes, when the address functions are used, the private keys of the corresponding receiving nodes or the corresponding storage nodes are used for decryption and then read into the memory, and the address functions are destroyed after being used. In this embodiment, the storage address function of one of the storage nodes is: memory address =4 × serial number +3 × offset value + 1209. Given a memory address and a sequence number, a corresponding offset value can be calculated. The distributed storage method provided by this embodiment can read the sub-packets only after the address function is obtained. And the correct storage address can be obtained only by reading according to the serial number, so that the method has higher safety and can avoid data leakage. The receiving node sets the sequence of N storage nodes, the identifier is a number, and the sequence of the storage nodes corresponding to the N surplus identifiers is the sequence of the storage nodes used for storing the corresponding storage packets and the supplement packets. The N storage nodes are sequentially encrypted and stored, and are restored to the memory only when being used, and the memory is destroyed after being used.
The storage nodes open a plurality of storage blocks in the storage space, the size of each storage block corresponds to the size of each sub-data packet, the storage blocks are distributed with index numbers, the index numbers are crop storage addresses, and the index numbers are integers.
Compared with the first embodiment, the embodiment adopts an improved distributed storage mode, and improves the security of the business data 32 and evidence storage.
The above embodiment is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the technical scope of the claims.
Claims (7)
1. A litigation evidence storing and storing system based on a block chain is characterized in that,
the system comprises a business data acquisition module, an inspection module, a matching module, a storage module, a certificate storage module and a notarization module, wherein the business data acquisition module is in butt joint with a business system to acquire business data and certificates, the inspection module inspects whether the business data and the certificates are complete, if the business data and the certificates are incomplete, an alarm is given out, the matching module matches the business data and the certificates acquired by the business data acquisition module according to users and businesses, associates the related business data and the certificates of the same business of the same user with each other, packs the first acquired business data and the first acquired business certificates into a storage packet, packs newly added business data and certificates into an additional packet, transmits the user number and the business number associated with the storage packet and the additional packet to the storage module, the certificate storage module extracts the hash values of the storage packet and the additional packet to upload block chains for storage, and stores the storage packet or the additional packet corresponding to the corresponding block height and the block hash value in an associated manner, the notarization module submits the storage packet and the supplementary packet to a notarization place to obtain a notarization certificate, and the notarization certificate is associated with the corresponding storage packet or supplementary packet to be stored.
2. The system of claim 1, wherein the chain of blocks is based on the evidence of litigation stored in the storage system,
the checking module stores a business data catalogue and a credential catalogue, associates business data with entries in the business data catalogue, associates credentials with entries in the credential catalogue, judges that the business data and the credentials are complete if the entries in the business data catalogue and the credential catalogue are associated with corresponding business data or credentials, and otherwise, sends an alarm if the entries in the business data catalogue or the credential catalogue are not associated with corresponding business data or credentials.
3. The system of claim 2, wherein the chain of blocks is based on the evidence of litigation stored in the evidence storage system,
the certificate is in a picture format, the checking module establishes an identification model for each entry in the certificate catalog, the business data acquisition module inputs the certificate into the identification model when acquiring a new certificate, and if the identification fails, an alarm is given and the certificate is returned, and the certificate is submitted again after being checked and corrected by business handling personnel.
4. The system of claim 3, wherein the chain of blocks is based on the evidence of litigation stored in the evidence storage system,
the method for establishing the identification model comprises the following steps: the method comprises the steps of manually checking certificates and marking entries to form a sample picture, dividing the sample picture into squares after the sample picture reaches a preset number, calculating the similarity of the sample picture in each square, marking the squares with the similarity exceeding a preset threshold as template squares, averaging pixel values in the template squares to obtain a template area and a template area image, inputting the certificates into a recognition model, equally dividing the squares by the recognition model, calculating the similarity between the certificates in the template area and the template area image, judging the certificates to be correct if the similarity exceeds the preset threshold, otherwise, judging the certificates to be wrong if the similarity is equal to or lower than the preset threshold, sending an alarm, and returning the certificates.
5. The litigation-evidence-storage system based on the block chain as claimed in any one of claims 1 to 4,
the storage module comprises a receiving node and a plurality of storage nodes, the storage nodes have sequences, the receiving node receives storage packets and supplement packets, the receiving node allocates identifications to the storage packets, the supplement packets share the identifications with the corresponding storage packets and are allocated with supplement numbers,
the receiving node divides the storage packet or the supplement packet into a plurality of sub-data packets, the sub-data packets have preset sizes, the sub-data packets are associated with identification and supplement numbers, the sub-data packets have numbers, the sub-data packets are arranged in a reverse order according to the numbers,
the receiving node and the storage node respectively store a preset address function, the input of the address function is a serial number and an offset value, the output of the address function is a storage address,
setting the value of the sequence number as the number of the sub-data packets, sending the arranged sub-data packets and the serial numbers to a first storage node, the storage node allocating storage addresses by itself, storing the sub-data packets at the allocated storage addresses, reducing the sequence number by one, sending the storage addresses to a next storage node, the receiving node sending the sequence number and the next sub-data packet to the next storage node, the subsequent storage node executing the storage step until all the sub-data packets are stored,
a storage step:
the storage nodes distribute storage addresses by themselves, the storage nodes calculate and obtain an offset value according to the received storage addresses, the sequence numbers and the address function, the sub-data packets are stored in association with the offset value, the storage nodes continuously send the storage addresses to the next storage node, the sequence numbers are reduced by one, the receiving nodes send the sequence numbers and the next sub-data packets to the next storage node,
and finally, the storage node for storing the sub data packet sends the corresponding storage address and the sequence number to the receiving node, the receiving node calculates and obtains the offset value according to the storage address and the sequence number, and the offset value is associated with the identifier and stored.
6. The system of claim 5, wherein the chain of blocks is based on the evidence of litigation stored in the evidence storage system,
the storage nodes open a plurality of storage blocks in a storage space, the size of each storage block corresponds to the size of each sub-data packet, the storage blocks are distributed with index numbers, the index numbers are crop storage addresses, and the index numbers are integers.
7. The system of claim 5, wherein the chain of blocks is based on the evidence of litigation stored in the evidence storage system,
the address functions stored by the receiving nodes and the storage nodes are different, the address functions are stored after being encrypted by the public keys of the corresponding receiving nodes or the corresponding storage nodes, when the address functions are used, the private keys of the corresponding receiving nodes or the corresponding storage nodes are used for decryption and then read into the memory, and the address functions are destroyed after being used.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114417391A (en) * | 2022-03-31 | 2022-04-29 | 浙江数秦科技有限公司 | Laboratory thesis certificate storage system based on block chain |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114417391A (en) * | 2022-03-31 | 2022-04-29 | 浙江数秦科技有限公司 | Laboratory thesis certificate storage system based on block chain |
| CN114417391B (en) * | 2022-03-31 | 2022-07-15 | 浙江数秦科技有限公司 | Laboratory thesis certificate storage system based on block chain |
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