CN114677093A - Public benefit donation system based on block chain and implementation method - Google Patents

Public benefit donation system based on block chain and implementation method Download PDF

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CN114677093A
CN114677093A CN202110959982.7A CN202110959982A CN114677093A CN 114677093 A CN114677093 A CN 114677093A CN 202110959982 A CN202110959982 A CN 202110959982A CN 114677093 A CN114677093 A CN 114677093A
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胡凯
曹海涛
胡心森
陈俊锋
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Beihang University
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Abstract

The invention provides a public welfare donation system based on a block chain, which comprises: the DIDResolve module comprises a DID distributed digital identity wallet submodule and a DID distributed digital identity card issuing mechanism submodule; a contribution calculation module; and a streaming democratic voting module; wherein: the DIDResolve module comprises a block chain management module, an adjacent node management module, a password module, an intelligent contract module, a formula module, a digital signature module, an RPC service module and a levelDB module; the contribution calculation module comprises a memory pool management module, a rule module, a transaction verification module and a P2P network management module; the streaming democratic voting module comprises a CPU module, a GPU module and an ASIC module. The block chain-based public welfare donation system has the advantages that the public welfare organization public trust is improved, decentralized operation is implemented, the users are continuously and positively stimulated based on contribution values, and the system ecological common management and the public welfare democratic transparency are achieved.

Description

Public benefit donation system based on block chain and implementation method
Technical Field
The invention relates to the technical field of block chains, in particular to a public welfare donation system based on a block chain and an implementation method.
Background
In the existing public welfare donation system, a plurality of well-known public welfare organizations mainly use sponsors as credit endorsements to collect benevolent activities. Funds are raised to the public according to the good credit of the star and the known people. However, when these public welfare organizations operate, many problems such as operation miscompliance, unknown donation destination, unknown donation record, miscompliance in use of the beneficiary, and loss of the public welfare participants often occur. These problems reduce the public confidence of public welfare organizations and at the same time reduce the enthusiasm of public welfare participants.
In summary, the existing public benefit donation system has information barriers, and the phenomenon of committing illegalities for personal gains may occur, and the public benefit donation system based on the block chain needs to be established by means of the block chain technology.
Disclosure of Invention
The invention aims to provide a public welfare donation system based on a block chain and an implementation method thereof, so as to solve the problems in the background technology.
The invention aims to provide a public welfare donation system based on a block chain, which comprises the following components:
a DID Resolve module including a DID distributed digital identity Wallet (DID Wallet) submodule and a DID distributed digital identity issuing authority (DID Issue) submodule;
A contribution calculation module; and
a streaming democratic voting module; wherein:
preferably, the DID Resolve module includes a block chain management module, a neighbor node management module, a cryptographic module, an intelligent contract module, a formula module, a digital signature module, an RPC service module, and a Level DB module.
Preferably, the contribution calculating module includes a memory pool management module, a rule module, a transaction verification module and a P2P network management module.
Preferably, the streaming democratic voting module comprises a CPU module, a GPU module and an ASIC module.
The invention also aims to provide a realization method of the public welfare donation system based on the block chain, which comprises the following steps:
step 1, applying for a DID distributed digital identity wallet, providing a verifiable statement through a DID distributed digital identity issuing organization, and entering a public welfare donation system;
step 2, exchanging the points by adopting the legal currency, if the exchange is successful, donating the points to a fund pool, and if the exchange is failed, retrying to enter a public welfare donation system;
step 3, confirming whether the donation is successful, if the donation is successful, calculating the contribution degree of the user, and carrying out user excitation according to the calculated contribution degree of the user; if the donation fails, returning to try to enter the public welfare donation system again;
And 4, initiating a use fund proposal by the verifier, voting by the verifier for the proposal, and finishing a complete use process of the public benefit donation system after determining to use donate funds according to a voting result.
Preferably, the applying for DID distributed digital identity wallet of step 1 is implemented using a chaining calculation method, including:
step 11, creating and authenticating a DID distributed digital identity, thereby distributing a decentralized identity with autonomy to the users of the public donation system;
step 12, making DID bind block chain address, thereby making uplink record on DID distributed digital identity behavior and important operation;
wherein the step 11 comprises: calculating a DID distributed digital identity wallet by a chained calculation method; creating a distributed digital identity through the wallet; generating a DID distributed digital identity from the DID Base Document by using an encryption algorithm;
the step 12 comprises: creating a block chain address under DID; binding DID distributed digital identity with a block chain address under DID; and linking up the behavior record corresponding to the DID distributed digital identity.
Preferably, the step 1 is implemented by the chained calculation, and the DID distributed digital identity issuing authority provides a verifiable declaration, the DID distributed digital identity issuing authority verifies the digital declaration of the DID, and after the verification is passed, a certificate, that is, a digital certificate, is generated for the declaration of the DID, the user applies for claim that materials need to be provided, and the endpoint of the issuing party is registered in the issuing party registration center together with the required material list.
Preferably, the DID distributed digital identity issuing authority is a trusted third party authority.
Preferably, the method further comprises: acquiring data of each public service platform through a data crawler algorithm, wherein the data crawler algorithm develops single functions into modules according to a modular design, so that the coupling among the modules is reduced, and the modules are divided into five modules, namely url queue, engine, download, parser and output according to codes; wherein:
url queue: a Url queue, which stores URL information to be crawled and stores Url in a message queue;
engine: the crawler engine is a main logic part of the crawler program, schedules other sub-modules and is responsible for forwarding the message;
downloading: the downloading module is used for downloading the information content corresponding to the URL and acquiring the original data of the URL;
parser: the analysis module is used for analyzing key data in the data after acquiring the original data corresponding to the URL;
output: and the output module is used for outputting the analyzed data in different formats and outputting the data to a page and a database.
Preferably, the streaming democratic vote is divided into 4 phases: carrying out asset pledge on the account in the stage one, and calculating the weight of drawing tickets, namely the number of tickets, according to pledge funds; the account role after the stage two pledge is changed into a delegator, and the delegator account can put the ticket number into a validator array, namely one ticket is put more; counting votes, namely counting the votes obtained by each account and not finishing voting, wherein the delegator account can deliver the votes to other accounts; and a fourth and a second vote counting stage, wherein the number of votes is counted, and the voting is finished.
The invention has the beneficial effects that:
improve the public confidence of public welfare organization and implement decentralized operation. The target I uses chain calculation to generate a distributed digital identity with an autonomous attribute, provides a distributed digital identity for public-interest participants and has autonomous controllable performance; and measuring the value scale of the users in the donation system, and quantifying the contribution degree of each participant public welfare donation system so as to conveniently find the participants with high contribution degree. Continuously and positively exciting the user based on the contribution value, and adjusting the user behavior by the incentive measure to ensure that the system develops in a positive and good direction; the public welfare request is examined and verified in a democratic voting mode, and voting is carried out, so that the purposes of system ecological common management and public welfare democratics transparency are achieved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
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Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a block chain based public interest donation system architecture diagram according to an embodiment of the present invention;
FIG. 2 is a flow chart of a block chain-based public service donation system implementation method according to an embodiment of the present invention;
FIG. 3 is a flow diagram of a method of chained computing according to an embodiment of the invention;
FIG. 4 is a schematic diagram of the operation of a DID distributed digital identity card issuing facility according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a data crawler algorithm according to an embodiment of the present invention;
fig. 6 is a schematic diagram of the architecture of the streaming democratic voting decision system according to the embodiment of the present invention.
Detailed Description
In the block chain-based public interest donation system and the implementation method of the block chain-based public interest donation system of the embodiment, in order to enable the public interest donation system to operate better, the following three sub-goals are mainly studied so as to improve the public trust of the public interest organization and implement decentralized operation. The target I uses the chained calculation to generate the distributed digital identity with the independent attribute, so that the distributed digital identity is provided for the public-interest participants and has the independent and controllable performance. And the second target measures the value scale of the user in the donation system, quantifies the contribution degree of each participant public welfare donation system, and facilitates the identification of the participants with high contribution degree. And continuously and positively exciting the user based on the contribution value, and adjusting the user behavior by the incentive measure to ensure that the system develops in a positive and good direction. And the third goal uses a democratic voting mode to check and verify the commonweal request and vote so as to achieve the purposes of common management of system ecology and transparent commonweal democratics. The first goal and the third goal can be based on generating a unique representation for the user, the second goal can achieve the purpose of quantifying the contribution degree of the user, and different incentives are implemented for the user according to the contribution degree. And the third target can carry out democratic autonomy on the public welfare donation system on the basis of the first target and the second target, so that the public welfare donation system has democratic property and transparency.
Aiming at the research and implementation of a public benefit donation system based on a block chain, the following problems need to be solved urgently:
1. design and implementation of distributed digital identity in public welfare donation system
2. Design and implementation of data crawlers for acquiring public service platforms
3. Measuring value scale problem of user in donation system
4. Architecture and design of mobile democratic voting decision system
Design and implementation of public welfare donation system distributed digital identity
With the advent and popularity of the internet, there is another manifestation of traditional identity, namely digital identity. It is generally recognized that the evolution of digital identities goes through four stages, namely, centralized identity, federated identity, user-centric identity, and distributed array identity.
Centralized identities are managed and controlled by a single authority, and most identities on the internet today are centralized identities. The appearance of the alliance identity overcomes the defect that identity data in the central identity is fragmented and disordered, the identity is managed and controlled by a plurality of organizations or alliances, and the identity data of the user has certain portability. For example, when a user is allowed to log in a certain website, account information of other websites can be used, similar to cross-platform login of QQ, wechat or microblog. User-centric identity focuses on decentralization, with authorization and permission to share identity data, such as OpenID. Distributed digital identities are only truly decentralized identities that are completely owned and controlled by individuals.
Such infrastructure necessarily needs to reside in a decentralized trusted environment in order for the identity to have true autonomy. With the advent of blockchain technology, implementation of autonomous identities found breaches. The block chain has a decentralized characteristic, and the characteristic brings possibility to the realization of distributed digital identity. It will be more convenient to implement distributed digital identities under a blockchain architecture.
Secondly, acquiring design and implementation of data crawlers of public service platforms
Various public service data are kept in each big public service platform, and in order to seek the value scale of the public service data, the public service data of each platform are needed and are analyzed and classified. Therefore, it becomes extremely important to design a data crawler and a data unified description method, and the crawler improves reusability and robustness of codes by adopting a modular design.
Thirdly, measuring the value scale problem of the user in the donation system
Each participant has a high degree of autonomy in the public donation, and the degree of participation and the value of the contribution of each user are different. There is a need for a way to calculate the contribution of participants in the current public welfare donation system. The value scale is an important tool for measuring the contribution degree, and the contribution of the user can be calculated more accurately only if the measurement rule is defined, so that a powerful reference is provided for the next step of excitation.
Structure and design of mobile democratic voting decision system
When contributing money or assisting the helper, the decision making mode of voting can make the system more democratic. The current voting method mainly comprises three types, namely: direct voting, proxy voting, and floating democratic voting. Direct voting, that is, each voter can directly cast the votes in the hands to someone or something; voting by proxy, namely, a common voter entrusts the vote of the voter to a professional who is more professional and more sophisticated, so that the professional can vote on behalf of the voter; the floating democratic voting is a voting mode between the two, voters can entrust their votes to others, but if finding that the agents can not reflect their wishes in the voting process, the agents' relations can be withdrawn, and the agents can reselect or directly vote.
As shown in fig. 1, the block chain-based public donation system of the embodiment includes:
a DID Resolve module including a DID distributed digital identity Wallet (DID Wallet) submodule and a DID distributed digital identity issuing authority (DID Issue) submodule;
a contribution calculation module; and
a streaming democratic voting module; wherein:
The DID Resolve module comprises a block chain management module, an adjacent node management module, a password module, an intelligent contract module, a formula module, a digital signature module, an RPC service module and a Level DB module.
The contribution calculation module comprises a memory pool management module, a rule module, a transaction verification module and a P2P network management module.
The streaming democratic voting module comprises a CPU module, a GPU module and an ASIC module.
As shown in fig. 2, an implementation method of a block chain-based public donation system in this embodiment includes:
step 1, applying for a DID distributed digital identity wallet, providing a verifiable statement through a DID distributed digital identity issuing organization, and entering a public welfare donation system;
step 2, exchanging the points by adopting the legal currency, if the exchange is successful, donating the points to a fund pool, and if the exchange is failed, retrying to enter a public welfare donation system;
step 3, confirming whether the donation is successful, if the donation is successful, calculating the contribution degree of the user, and carrying out user excitation according to the calculated contribution degree of the user; if the donation fails, returning to try to enter the public welfare donation system again;
and 4, initiating a use fund proposal by the verifier, voting by the verifier for the proposal, and finishing a complete use process of the public welfare donation system after determining to use donation funds according to a voting result.
As shown in fig. 3, the DID application distributed digital identity wallet of step 1 is implemented using a chained computing method, including:
step 11, creating and authenticating a DID distributed digital identity, thereby distributing a decentralized identity with autonomy to users of the public donation system;
step 12, making DID bind block chain address, thereby making uplink record on DID distributed digital identity behavior and important operation;
wherein, step 11 comprises: calculating a DID distributed digital identity wallet by a chained calculation method; creating a distributed digital identity through a wallet; generating a DID distributed digital identity from the DID Base Document by using an encryption algorithm;
step 12 comprises: creating a block chain address under DID; binding DID distributed digital identity with a block chain address under DID; and linking up the behavior record corresponding to the DID distributed digital identity.
As shown in fig. 4, step 1 is implemented by using chained calculation to provide a verifiable assertion through a DID distributed digital identity certificate authority, the DID distributed digital identity certificate authority verifies the digital assertion of the DID, after the verification is passed, an authentication, i.e. a digital certificate, is generated for the assertion of the DID, the user applies for claim that materials need to be provided, and the endpoint of the prover is registered in the registration center of the prover together with a required bill of materials.
Preferably, the DID distributed digital identity issuing authority is a trusted third party authority.
Referring to fig. 5, the method further comprises: the data of each public service platform is acquired through a data crawler algorithm, the data crawler algorithm develops single functions in modules according to modular design, the coupling among the modules is reduced, and the modules are divided into five modules, namely url queue, engine, download, parser and output according to codes; wherein:
url queue: a Url queue, which stores URL information to be crawled and stores Url in a message queue;
engine: the crawler engine is a main logic part of the crawler program, schedules other sub-modules and is responsible for forwarding the message;
downloading: the downloading module is used for downloading the information content corresponding to the URL and acquiring the original data of the URL;
parser: the analysis module is used for analyzing key data in the data after acquiring the original data corresponding to the URL;
output: and the output module is used for outputting the analyzed data in different formats and outputting the data to a page and a database.
The streaming democratic voting module comprises:
the public benefit assistance application can be audited in a mobile democratic voting mode in the public benefit donation system. Voting decision is carried out on the application passing the audit, so that each account can participate in decision making treatment, and the democratic performance and the fairness of the public welfare donation system are reflected. The voting can be roughly divided into 4 stages. Carrying out asset pledge on the account in the stage one, and calculating the weight of drawing tickets, namely the number of tickets, according to pledge funds; the account role after the stage two pledge is changed into a delegator, and the delegator account can put the ticket number into a validator array, namely one ticket is put more; counting votes, namely counting the votes obtained by each account and not finishing voting, wherein the delegator account can deliver the votes to other accounts; and a fourth and a second vote counting stage, wherein the number of votes is counted, and the voting is finished. The voting specific logic is shown in fig. 6.
The system and the implementation method of the embodiment improve the public confidence of the public welfare organization and implement decentralized operation. The first target uses chained calculation to generate a distributed digital identity with an autonomous attribute, provides a distributed digital identity for public welfare participants and has autonomous controllable performance; and measuring the value scale of the users in the donation system, and quantifying the contribution degree of each participant public welfare donation system so as to conveniently find the participants with high contribution degree. Continuously and positively exciting the user based on the contribution value, and adjusting the user behavior by the incentive measure to ensure that the system develops in a positive and good direction; the commonweal request is examined and verified in a democratic voting mode, and voting is carried out, so that the purposes of system ecological common management and transparent commonweal democratics are achieved.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It will be understood by those skilled in the art that variations and modifications of the embodiments of the present invention can be made without departing from the scope and spirit of the invention.

Claims (10)

1. A block chain-based public donation system, comprising:
The DID Resolve module comprises a DID distributed digital identity wallet submodule and a DID distributed digital identity card issuing mechanism submodule;
a contribution calculation module; and
and a streaming democratic voting module.
2. The block chain-based public interest donation system according to claim 1, wherein: the DID Resolve module comprises a block chain management module, an adjacent node management module, a password module, an intelligent contract module, a formula module, a digital signature module, an RPC service module and a levelDB module.
3. The block chain-based public interest donation system according to claim 1, wherein: the contribution calculation module comprises a memory pool management module, a rule module, a transaction verification module and a P2P network management module.
4. The block chain-based public interest donation system according to claim 1, wherein: the streaming democratic voting module comprises a CPU module, a GPU module and an ASIC module.
5. A method for implementing the block chain-based public interest donation system according to any one of claims 1-4, comprising:
step 1, applying for a DID distributed digital identity wallet, and entering a public welfare donation system after providing a verifiable statement through a DID distributed digital identity issuing organization;
Step 2, exchanging the points by adopting the legal currency, if the exchange is successful, donating the points to a fund pool, and if the exchange is failed, retrying to enter a public welfare donation system;
step 3, confirming whether the donation is successful, if the donation is successful, calculating the contribution degree of the user, and carrying out user excitation according to the calculated contribution degree of the user; if the donation fails, returning to try to enter the public welfare donation system again;
and 4, initiating a use fund proposal by the verifier, voting by the verifier for the proposal, and finishing a complete use process of the public welfare donation system after determining to use donation funds according to a voting result.
6. The implementation method of claim 5, wherein: the applying for DID distributed digital identity wallet of step 1 is implemented using a chaining computation method, comprising:
step 11, creating and authenticating a DID distributed digital identity, thereby distributing a decentralized identity with autonomy to the users of the public donation system;
step 12, making DID bind block chain address, thereby making uplink record on DID distributed digital identity behavior and important operation;
wherein the step 11 comprises: calculating a DID distributed digital identity wallet by a chained calculation method; creating a distributed digital identity through the wallet; generating a DID distributed digital identity from the DID Base Document by using an encryption algorithm;
The step 12 comprises: creating a block chain address under DID; binding DID distributed digital identity with a block chain address under DID; and linking up the behavior record corresponding to the DID distributed digital identity.
7. The implementation method of claim 5, wherein: the step 1 of providing a verifiable statement through the DID distributed digital identity card issuing authority is realized through the chained calculation, the DID distributed digital identity card issuing authority verifies the digital statement of the DID, after the verification is passed, a certificate, namely a digital certificate, is generated for the statement of the DID, the user applies for the close to be provided with the material, and the endpoint of the issuing party and the required material list are registered in a registration center of the issuing party.
8. The implementation method of claim 7, wherein: the DID distributed digital identity card issuing authority is a trusted third party authority.
9. The method of claim 5, wherein the method further comprises: acquiring data of each public service platform through a data crawler algorithm, wherein the data crawler algorithm develops single functions into modules according to a modular design, so that the coupling among the modules is reduced, and the modules are divided into five modules, namely urlqueue, engine, download, parser and output according to codes; wherein:
url queue: a Url queue, which stores URL information to be crawled and stores Url in a message queue;
engine: the crawler engine is a main logic part of the crawler program, schedules other sub-modules and is responsible for forwarding the message;
downloading: the downloading module is used for downloading the information content corresponding to the URL and acquiring the original data of the URL;
parser: the analysis module is used for analyzing key data in the data after acquiring the original data corresponding to the URL;
output: and the output module is used for outputting the analyzed data in different formats and outputting the data to a page and a database.
10. The implementation method of claim 5, wherein: the streaming democratic vote is divided into 4 phases: carrying out asset pledge on the account in the stage one, and calculating the weight of drawing tickets, namely the number of tickets, according to pledge funds; the account role after the stage two pledge is changed into a delegator, and the delegator account can put the ticket number into a validator array, namely one ticket is put more; counting votes, namely counting the votes obtained by each account and not finishing voting, wherein the delegator account can deliver the votes to other accounts; and a fourth and a second vote counting stage, wherein the number of votes is counted, and the voting is finished.
CN202110959982.7A 2021-08-20 2021-08-20 Public benefit donation system based on block chain and implementation method Pending CN114677093A (en)

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