CN109472698B - Public welfare supervision method and system based on block chain - Google Patents
Public welfare supervision method and system based on block chain Download PDFInfo
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Abstract
The embodiment of the application provides a public welfare supervision method and system based on a block chain. Any public link node can acquire the data block in the private link and verify the data block, and when the data block is verified to be abnormal, the data block can be submitted to the administrator node. The data block may be marked when the administrator node verifies and determines that there is an anomaly with the data block. The generated data blocks are subjected to consensus verification to be added into the private chain, so that the data blocks stored in the private chain cannot be tampered, and the authenticity and reliability of the data are improved. Moreover, the public link node can verify the data blocks in the private link node, and the participation degree of the public to the public service project can be improved while the development of the public service project is not influenced.
Description
Technical Field
The invention relates to the technical field of information processing, in particular to a public welfare supervision method and system based on a block chain.
Background
The blockchain is a tamper-proof shared digital account book, is used for recording transactions in a peer-to-peer network, and is a novel application mode combining computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism, an encryption algorithm and the like. There are three main types of blockchains: public chain, private chain, federation chain. The public chain is opened to all people, and any person can become a node, and then initiates a transaction and participates in a consensus process; the private chain is opened for individual individuals or entities, and the writing authority is managed by a single organization; a federation chain is between a public chain and a private chain, open to a particular organizational community.
It is a trend to apply the blockchain technique to the public welfare field, so as to improve the authenticity and reliability of the public welfare project, and to make the execution of the project credible. However, in the supervision and management of public welfare projects, the requirement of people for supervision cannot be met by publicly and transparently displaying data for viewing, and a supervision mode needs to be improved to improve the supervision power of people and enrich the supervision means of people. The multi-chain technology which is developed rapidly at present facilitates future upgrading of an expansion system, multi-chain interaction and cross-chain transaction are achieved, interconnection and intercommunication of each public service platform are guaranteed, information interaction with other heterogeneous platforms is guaranteed, and the application range of the block chain is expanded fully.
Disclosure of Invention
In view of the above, the present application provides a block chain-based public welfare supervision method and system to improve the above problems.
The embodiment of the application provides a public welfare supervision method based on a block chain, which is applied to a public welfare supervision system based on the block chain, wherein the system comprises a plurality of administrator nodes, a plurality of private chain nodes and a plurality of public chain nodes, and the method comprises the following steps:
when any one of the administrator nodes distributes project information or donation information at any one of the plurality of private chain nodes, generating a current data block according to the project information or donation information;
sending the current data block to other administrator nodes in the administrator nodes, and adding the current data block to a private chain after the current data block passes the consensus verification of the other administrator nodes;
any public chain link point in the public chain nodes acquires a data block in the private chain, verifies the acquired data block, and submits the data block to the administrator node when the verification is abnormal;
and the administrator node verifies the data blocks and marks the data blocks with the abnormity in the private chain when the data blocks with the abnormity are determined.
Optionally, the step of acquiring, by any one of the public link nodes, a data block in the private link, verifying the acquired data block, and submitting the data block to the administrator node when the data block is abnormal in verification includes:
any public chain link point in the public chain nodes acquires a data block in the private chain and verifies the acquired data block, and the data block and a verification result are disclosed to other public chain nodes in the public chain nodes when the verification is abnormal;
and submitting the data block to the administrator node when the other public link nodes determine that the data block has the abnormality.
Optionally, the step of submitting the data block to the administrator node when the other public link node determines that the data block is abnormal includes:
and submitting the data block to the administrator node when the common link nodes exceeding the preset threshold number in the other common link nodes determine that the data block is abnormal.
Optionally, after the step of disclosing the data block and the verification result to other public link nodes in the plurality of public link nodes when the verification is abnormal, the method further includes:
and if the number of the public link nodes which determine that the data block has the abnormity does not exceed the preset number and the public time length from the data block exceeds the preset time length in the other public link nodes, the administrator node cancels the public information of the data block.
Optionally, the system further includes a server, and after the step of adding the current data chunk into the private chain, the method further includes:
and the server stores the data blocks in the private chain into a database, and copies the data blocks in the private chain in the database into the public chain maintained by the public chain nodes after the number of the newly added data blocks in the private chain exceeds a preset number or an interval preset threshold value.
Optionally, after the step of verifying the data block by the administrator node and determining that there is an exception for the data block, the method further comprises:
and the administrator node generates reward information and issues corresponding virtual currency to the public link node which verifies that the data block is abnormal according to the reward information.
Optionally, the step of generating a current data block according to the item information or the contribution information includes:
the administrator node acquires the last data block in the stored private chain;
and generating a hash value according to the last data block in the private chain, and generating a current data block according to the hash value and the item information or the contribution information.
The embodiment of the present application further provides a public welfare supervision system based on the block chain, where the system includes multiple administrator nodes, multiple private chain nodes, and multiple public chain nodes:
any one of the administrator nodes is used for generating a current data block according to project information or donation information when the project information or the donation information is distributed at any one of the plurality of private chain nodes;
the administrator node is used for sending the current data block to other administrator nodes in the administrator nodes, and adding the current data block to a private chain after the current data block passes the consensus verification of the other administrator nodes;
any public link node in the public link nodes is used for acquiring the data block in the private link, verifying the acquired data block and submitting the data block to the administrator node when the verification is abnormal;
the administrator node is configured to verify the data block, and mark the data block with an exception in the private chain when it is determined that the data block has an exception.
Optionally, any public link node in the plurality of public link nodes is configured to acquire a data block in the private link and verify the acquired data block, and when the verification is abnormal, the data block and the verification result are disclosed to other public link nodes in the plurality of public link nodes;
and the public link node is used for submitting the data block to the administrator node when the other public link nodes determine that the data block has the abnormality.
Optionally, the administrator node is further configured to determine, in the other public link nodes, that the number of the public link nodes having the abnormal data block does not exceed a preset number, and the time length from the public link node to the data block exceeds a preset time length, and then cancel the public link node of the data block.
According to the public welfare supervision method and system based on the block chain, the current data block is generated through project information or donation information issued by the private chain nodes through the administrator nodes, and the current data block is added into the private chain after being verified through consensus of a plurality of administrator nodes. Any public link node can acquire the data block in the private link and verify the data block, and when the data block is verified to be abnormal, the data block can be submitted to the administrator node. The data block may be marked when the administrator node verifies and determines that there is an anomaly with the data block. The generated data blocks are subjected to consensus verification to be added into the private chain, so that the data blocks stored in the private chain cannot be tampered, and the authenticity and reliability of the data are improved. Moreover, the public link node can verify the data blocks in the private link node, and the participation degree of the public to the public service project can be improved while the development of the public service project is not influenced.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of an application scenario of a block chain-based public welfare supervision method according to an embodiment of the present application.
Fig. 2 is a flowchart of a block chain-based public welfare supervision method according to an embodiment of the present disclosure.
Fig. 3 is a flowchart of sub-steps of step S110 in fig. 2.
Fig. 4 is a flowchart of sub-steps of step S130 in fig. 3.
Fig. 5 is a schematic view of an interaction scenario of a block chain-based public welfare supervision system according to an embodiment of the present application.
Icon: 10-public welfare supervision system based on block chain; 100-a server; 200-an administrator node; 300-private chain node; 400-public link node.
Detailed Description
The traditional public welfare activity supervision mechanism is imperfect, and has the problems of insufficient capital supervision, poor project supervision, insufficient evaluative supervision, hypodynamia in social supervision and the like. In the existing supervision mechanism, the supervision of the donor and the public in society is mainly to supervise the public welfare activities through inquiry, tracking, investigation, internet surfing, complaints and the like, and due to lack of supervision power, the donor does not inquire or track the content of the project in the later period. After the block chain technology is applied to the public service field, the public trust of the public service platform is improved, but the public service platform is still weak in public supervision.
If only a public link is used, anyone can participate in the publication of the public welfare activity, the authenticity of the public welfare activity is difficult to control, and the rights of the public welfare organization are correspondingly weakened, so applying the public link directly to the public welfare activity leaves something to be desired.
If only the private chain is used, the node can be added into the block chain network only by being authenticated by an administrator, public welfare organizations obtain enough authority to participate in the management of projects and platforms, but the supervision of the public participation projects becomes difficult, donors can only view transaction lists and block information, and ordinary users cannot even view the relevant information of transactions.
Based on the research findings, the embodiment of the application provides a public welfare supervision scheme based on the block chain, and by means of the combination of the private chain and the public chain, the reality and the reliability of data information are guaranteed, and public supervision on public welfare projects can be realized without influencing project development.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Referring to fig. 1, an interaction diagram of a block chain-based public welfare supervision system 10 according to an embodiment of the present application is provided, where the system includes a server 100, a plurality of administrator nodes 200, a plurality of private chain nodes 300, and a plurality of public chain nodes 400. The server 100, the plurality of administrator nodes 200, the private link node 300, and the public link node 400 are communicatively connected to each other, so as to implement data transmission and communication.
Optionally, in this embodiment, specific types of the administrator node 200, the private chain node 300, and the public chain node 400 are not limited, and may be, for example, but not limited to, a smart phone, a Personal Computer (PC), a tablet computer, a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a web server 100, a data server 100, and other devices with a processing function.
With reference to fig. 2, an embodiment of the present invention further provides a block chain-based public welfare supervision method applicable to the block chain-based public welfare supervision system 10. The specific process shown in fig. 2 will be described in detail below.
In step S110, when any private chain node 300 of the plurality of private chain nodes 300 issues project information or donation information, any administrator node 200 generates a current data block according to the project information or donation information.
Referring to fig. 3, in the present embodiment, step S110 may include step S111 and step S112.
In step S111, the administrator node 200 obtains the last data block in the stored private chain.
Step S112, generating a hash value according to the last data block in the private chain, and generating a current data block according to the hash value and the item information or the donation information.
In this embodiment, the nodes in the system may be registered in advance on a related platform, such as a public service project platform, through the server 100 to become corresponding node users. For example, a user may register on the platform as an administrator node 200, a private chain node 300, or a public chain node 400, etc. For registering as the administrator node 200, authentication by the server 100 is required, and the server 100 can authenticate the trusted node as the administrator node 200. Wherein a user registered as a private chain node 300 may have rights to issue items, participate in donations to conduct transactions, and the like. The user registered as the public link node 400 has a right to view and verify data, but does not have a right to participate in a transaction.
In this embodiment, any private chain node 300 may issue the project information, or issue the contribution information. The administrator node 200 may generate the current data chunk from project information or donation information, etc. In which a plurality of private chain nodes 300 maintain a private chain, the administrator node 200 may add the generated current data block to the private chain after passing the verification.
Optionally, when generating the current data block, the administrator node 200 may obtain the last data block in the stored private chain, and generate a hash value according to the last data block in the private chain, where the hash value has a length of 256 bits, and finally calculate a binary number of 256 bits regardless of the original content, and as long as the original content is different, the corresponding hash value is also different. The administrator node 200 generates a current data block according to the hash value and the item information or the contribution information.
Step S120, sending the current data block to other administrator nodes 200 in the administrator nodes 200, and adding the current data block to a private chain after the current data block passes the consensus verification of the other administrator nodes 200.
After a current data block is generated by an administrator node 200, the current data block may be broadcast to other administrator nodes 200, and the other administrator nodes 200 may verify the current data block based on a consensus algorithm, such as a Byzantine fault-tolerant consensus mechanism. The Byzantine fault-tolerant mechanism can accommodate dislocation error node errors close to 1/3, the nodes for consensus verification are composed of service participants or supervisors, and safety and stability are guaranteed by service related parties.
After the generated current data block is verified by the consensus of other administrator nodes 200, the current data block can be added into the private chain, and the data information added into the private chain cannot be tampered, so that the reliability of the data is guaranteed.
Optionally, in this embodiment, the server 100 may store the data blocks in the private chain in a database, for example, MySQL database. When the preset condition is met, the data in the database may be synchronized into the public chain maintained by the public chain node 400. The preset condition may be, for example, that the number of newly added data blocks in the private chain exceeds a preset number, or a preset threshold value from the last synchronization time interval. That is, after the number of newly added data blocks in the private chain exceeds the preset number or the interval preset threshold, the server 100 may copy the data blocks in the private chain in the database to the public chain maintained by the plurality of public chain nodes 400. In this embodiment, the MySQL database is used as a bridge to avoid concurrency abnormality, so that data in the private chain is backed up in the database in time, and the public chain reads data from the database.
In step S130, any public link node 400 in the plurality of public link nodes 400 acquires the data block in the private link, verifies the acquired data block, and submits the data block to the administrator node 200 when the verification is abnormal.
Optionally, referring to fig. 4, in the present embodiment, step S130 may include step S131 and step S132.
In step S131, any public link node 400 in the public link nodes 400 acquires the data block in the private link, verifies the acquired data block, and discloses the data block and the verification result to other public link nodes 400 in the public link nodes 400 when the verification is abnormal.
In step S132, when the other public link node 400 determines that the data block is abnormal, the data block is submitted to the administrator node 200.
In this embodiment, the public link is open, any user can register as the public link node 400, but the authority of the public link node 400 needs to be strictly controlled, and the public link node 400 user cannot perform operations such as transaction or data block generation, and can only check the data block, check whether the transaction is legal, check the flow direction of project funds, and record the operation of a worker.
Any public link node 400 in the plurality of public link nodes 400 may obtain a data block in the private link. Alternatively, the data can be copied to the public chain maintained by the data base synchronization through the steps. Public link node 400 may view, verify, etc. data blocks in the public link. The public link nodes 400 may check the data blocks through hash value comparison and verification of specific information related to items in the data blocks, and if it is checked that a certain data block is abnormal, the abnormal data block and the verification result may be disclosed to other public link nodes 400 in the plurality of public link nodes 400.
The other public link nodes 400 may perform consensus verification on the data block based on a consensus algorithm, such as a consensus mechanism of "citizen election". When the other public link node 400 determines that there is an anomaly in the data block, the data block is submitted to the administrator node 200.
In this embodiment, when the number of the public link nodes 400 exceeding the preset threshold among the other public link nodes 400 determines that the data block is abnormal, the data block is submitted to the administrator node 200.
Optionally, if the number of the public link nodes 400 determining that the data block has the abnormality does not exceed the preset number and the public link time from the data block exceeds the preset time, the administrator node 200 cancels the public link information of the data block.
In step S140, the administrator node 200 verifies the data block, and marks the data block with an abnormality in the private chain when it is determined that the data block has an abnormality.
In this embodiment, after receiving the data block verified as abnormal by the public link node 400, the administrator node 200 may further verify the data block, and mark the data block with abnormality in the private link to prompt error information when determining that the data block is abnormal. Optionally, the administrator node 200 may calculate a hash value by using the Merkle Tree, and compare the calculated hash value with the hash value in the data block to check whether the data block is abnormal.
Optionally, in this embodiment, in order to improve the positivity of the public to participate in the supervision of the public welfare project, optionally, when determining that the data block submitted by the public link node 400 is abnormal, the administrator node 200 generates reward information, and issues corresponding virtual currency to the public link node 400 that verifies that the data block is abnormal according to the reward information.
In order to make those skilled in the art better understand the present solution, a specific example will be given below in conjunction with the scenario shown in fig. 5 to further describe the block chain-based public welfare supervision method provided in the embodiment of the present application, which is specifically as follows.
In fig. 5, a is an administrator node 200, PB is a node that issues project information, PC is a node that issues contribution information, and N is a node corresponding to a general person. After the project information or the contribution information is issued, the transaction pool is processed according to a preset intelligent contract (i.e. a preset set of transaction rules), and the administrator node 200 may generate a data block according to the project information and the contribution information, and broadcast the data block to other administrator nodes 200, such as a2, A3, and a4, to perform consensus verification. If the administrator node 200 agrees to verify the generated data block, the generated data block may be added to the private chain. The data blocks in the private chain may be updated into the database at regular time, for example, at a preset threshold interval or when the number of data blocks newly added into the private chain exceeds a preset number, the data blocks in the private chain may be updated into the database.
The public chain may synchronize data blocks from the database, and any one of the nodes 400 of the public chain may view, check, etc. data blocks synchronized into the public chain. If the public link node 400 verifies that an exception exists in a certain data block, the abnormal data block is disclosed to other public link nodes 400. To perform consensus verification on the data block using other public link nodes 400. If the other public link nodes 400 verify that the data block is indeed anomalous and has reached consensus, the data block may be submitted to the administrator node 200, node A1 in FIG. 5. The administrator node 200 will re-verify the data block, mark the data block after verifying that the data block has an exception, and update the data block into the private chain.
Also, after determining that the data block is abnormal, the manager node 200 may issue virtual money (token) to indicate a reward to the public link node 400 that verifies the data block and other public link nodes 400 that participate in the verification of the data block.
Another embodiment of the present application further provides a block chain-based public welfare supervision system 10, which includes a plurality of administrator nodes 200, a plurality of private chain nodes 300, and a plurality of public chain nodes 400.
Wherein, any one of the administrator nodes 200 is configured to generate a current data block according to project information or contribution information when any one of the plurality of private-chain nodes 300 issues the project information or the contribution information.
The administrator node 200 is configured to send the current data block to other administrator nodes 200 in the plurality of administrator nodes 200, and add the current data block to a private chain after the current data block passes the consensus verification of the other administrator nodes 200.
Any public link node 400 in the plurality of public link nodes 400 is configured to acquire a data block in the private link, verify the acquired data block, and submit the data block to the administrator node 200 when the verification is abnormal.
Specifically, any public link node 400 in the plurality of public link nodes 400 is configured to acquire a data block in the private link and verify the acquired data block, and when the verification is abnormal, the data block and the verification result are disclosed to other public link nodes 400 in the plurality of public link nodes 400. The public link node 400 is configured to submit the data block to the administrator node 200 when the other public link nodes 400 determine that the data block is abnormal.
The administrator node 200 is configured to verify the data block, and mark the data block with an exception in the private chain when it is determined that the data block has an exception.
In this embodiment, the administrator node 200 is further configured to determine, in the other public link nodes 400, that the number of the public link nodes 400 having the data block with the abnormality does not exceed the preset number, and the time length of the public link node from the data block exceeds the preset time length, and then cancel the public link information of the data block.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the system described above may refer to the corresponding process in the foregoing method, and will not be described in too much detail herein.
To sum up, according to the public welfare supervision method and system based on the block chain provided by the embodiment of the present application, the administrator node 200 generates the current data block from the project information or the donation information issued by the private chain node 300, and after the common identification verification of a plurality of administrator nodes 200, the current data block is added to the private chain. Any public link node 400 may obtain and verify data blocks in the private link, and may submit the data blocks to the administrator node 200 when it verifies that there is an anomaly in the data blocks. The data block may be marked when the administrator node 200 verifies and determines that there is an anomaly with the data block. The generated data blocks are subjected to consensus verification to be added into the private chain, so that the data blocks stored in the private chain cannot be tampered, and the authenticity and reliability of the data are improved. Moreover, the public link node 400 can verify the data blocks in the private link node 300, and can improve the participation degree of the public to the public service projects without influencing the development of the public service projects.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative and, for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A block chain-based public welfare supervision method is applied to a block chain-based public welfare supervision system, the system comprises a plurality of administrator nodes, a plurality of private chain nodes and a plurality of public chain nodes, and the method comprises the following steps:
when any one of the administrator nodes distributes project information or donation information at any one of the plurality of private chain nodes, generating a current data block according to the project information or donation information;
sending the current data block to other administrator nodes in the administrator nodes, and adding the current data block to a private chain after the current data block passes the consensus verification of the other administrator nodes;
any public chain link point in the public chain nodes acquires a data block in the private chain, verifies the acquired data block, and submits the data block to the administrator node when the verification is abnormal; the method comprises the following steps: any public chain link point in the public chain nodes acquires a data block in the private chain and verifies the acquired data block, and the data block and a verification result are disclosed to other public chain nodes in the public chain nodes when the verification is abnormal;
submitting the data block to the administrator node when the other public link nodes determine that the data block is abnormal;
and the administrator node verifies the data blocks and marks the data blocks with the abnormity in the private chain when the data blocks with the abnormity are determined.
2. The block chain-based public welfare supervision method according to claim 1, wherein the step of submitting the data block to the administrator node when the other public chain node determines that there is an anomaly in the data block comprises:
and submitting the data block to the administrator node when the common link nodes exceeding the preset threshold number in the other common link nodes determine that the data block is abnormal.
3. The block chain-based public welfare supervision method according to claim 1, wherein after the step of disclosing the data block and the verification result to other public link nodes of the plurality of public link nodes upon verifying an anomaly, the method further comprises:
and if the number of the public link nodes which determine that the data block has the abnormity does not exceed the preset number and the public time length from the data block exceeds the preset time length in the other public link nodes, the administrator node cancels the public information of the data block.
4. The block chain-based public welfare supervision method according to claim 1, wherein the system further comprises a server, after the step of adding the current data block into a private chain, the method further comprising:
and the server stores the data blocks in the private chain into a database, and copies the data blocks in the private chain in the database into the public chain maintained by the public chain nodes after the number of the newly added data blocks in the private chain exceeds a preset number or an interval preset threshold value.
5. The block chain-based public welfare supervision method according to claim 1, wherein the administrator node verifies the data block and after the step of determining that there is an anomaly in the data block, the method further comprises:
and the administrator node generates reward information and issues corresponding virtual currency to the public link node which verifies that the data block is abnormal according to the reward information.
6. The block chain-based public welfare supervision method according to claim 1, wherein the step of generating a current data block according to the item information or the contribution information comprises:
the administrator node acquires the last data block in the stored private chain;
and generating a hash value according to the last data block in the private chain, and generating a current data block according to the hash value and the item information or the contribution information.
7. A block chain based public welfare supervision system, characterized in that the system comprises a plurality of administrator nodes, a plurality of private chain nodes and a plurality of public chain nodes:
any one of the administrator nodes is used for generating a current data block according to project information or donation information when the project information or the donation information is distributed at any one of the plurality of private chain nodes;
the administrator node is used for sending the current data block to other administrator nodes in the administrator nodes, and adding the current data block to a private chain after the current data block passes the consensus verification of the other administrator nodes;
any public link node in the public link nodes is used for acquiring the data block in the private link, verifying the acquired data block and submitting the data block to the administrator node when the verification is abnormal; any public link node in the public link nodes is used for acquiring the data block in the private link and verifying the acquired data block, and the data block and a verification result are disclosed to other public link nodes in the public link nodes when the verification is abnormal; the public link node is used for submitting the data block to the administrator node when the other public link nodes determine that the data block is abnormal;
the administrator node is configured to verify the data block, and mark the data block with an exception in the private chain when it is determined that the data block has an exception.
8. The block chain-based public welfare supervision system according to claim 7, wherein the administrator node is further configured to cancel the public information of the data block if the number of public chain nodes determining that the data block has an abnormality in the other public chain nodes does not exceed a preset number and the public duration from the data block exceeds a preset duration.
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| CN201811279393.9A CN109472698B (en) | 2018-10-30 | 2018-10-30 | Public welfare supervision method and system based on block chain |
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| CN114756729B (en) * | 2022-05-05 | 2023-06-23 | 吕梁市智信网络电子科技有限责任公司 | Information processing method applied to block chain and big data platform |
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| CN108510275A (en) * | 2018-04-08 | 2018-09-07 | 众安信息技术服务有限公司 | The method and computer readable storage medium of progress for the public good project that follows up |
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