CN112258252A - Block chain-based data asset value evaluation device and method - Google Patents
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Abstract
The invention discloses a data asset value evaluation method based on a block chain, which relates to the technical field of block chain application, wherein the block chain comprises a data chain and a value chain, and the asset value evaluation method comprises the following steps: acquiring a data set of the data assets, and uploading the data set to the data chain for recording and storing; participating in bidding by a user node on the value chain according to the data set; calculating the bids of the user nodes participating in the bids on the value chain according to an intelligent contract of a preset rule to obtain a bidding result; and obtaining an evaluation result of the data asset value according to the bidding result, wherein a double-chain mechanism of data chain and value chain ensures that the recording, pricing and transaction processes of the data asset are realized on the chain, so that the evaluation method has traceability and enhances the reliability of the data asset value evaluation.
Description
Technical Field
The invention relates to the technical field of big data and block chain application, in particular to a block chain-based data asset value evaluation device method and device, electronic equipment and a storage medium.
Background
In the big data era, data is becoming an important source of wealth creation and will increasingly be viewed as a valued asset. Massive big data can be generated, a new value field is developed, but the data is not produced per se, and the application is only aimed, so that the value is embodied. Although many enterprises have realized the potential development prospect of data as an asset, only an accurate assessment of the value of the data asset can lead to the application from production to real becoming a data asset;
in the prior art, a reliable data asset value evaluation method is not formed.
Disclosure of Invention
The invention aims to provide a block chain-based data asset value evaluation device and method, electronic equipment and a storage medium, so that the evaluation method has traceability and enhances the reliability of data asset value evaluation.
In a first aspect, an embodiment of the present invention provides a data asset value assessment method based on a blockchain, where the blockchain includes a data chain and a value chain, and the asset value assessment method includes:
the data chain acquires a data set of the data assets, and records and stores the data set;
according to the data set, the value chain informs the user nodes to participate in bidding;
the value chain calculates the bids of the user nodes participating in the bidding according to an intelligent contract of a preset rule to obtain a bidding result;
and obtaining an evaluation result of the data asset value according to the bidding result.
Optionally, the data chain is composed of a set of blocks concatenated in time, wherein the body part of each block records data set details, and further records include a block height, a block header, a timestamp, a data set counter and a block size.
Optionally, the data set comprises: the data identification and the information related to the value evaluation comprise data fields, data time span, data set size and missing items.
Optionally, the preset bidding rule is oriented to different demand scenarios, and includes two types of selectable bidding mechanisms: monopoly pricing mechanisms and VCG mechanisms.
Optionally, when the data set is recorded into the data chain, the value chain will update information synchronously, the update information including the identifier and the initial value.
Optionally, the data asset value assessment method further includes: the value of the data asset is updated based on the results of the new round of bidding.
In a second aspect, an embodiment of the present invention provides an asset worth assessment apparatus for data based on a blockchain, where the blockchain includes a data chain and a value chain, and the asset worth assessment apparatus includes:
the acquisition module is used for acquiring a data set of the data assets by the data chain, and recording and storing the data set;
the bidding module is used for informing the user nodes of participating in bidding according to the data set by the value chain;
the calculation module is used for calculating the bids of the user nodes participating in the bids by the value chain according to an intelligent contract of a preset rule to obtain a bid result;
and the processing module is used for obtaining an evaluation result of the data asset value according to the bidding result.
Optionally, the data asset worth evaluating apparatus further includes:
and the updating module is used for updating the value of the data asset according to the bidding result of the new round.
In a third aspect, an embodiment of the present invention provides an electronic device, including:
a processor; a memory for storing processor-executable instructions;
wherein the processor implements the above method by executing the executable instructions.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, implement the steps of the above-described method.
Advantageous effects
The invention provides a data asset value evaluation method based on a block chain, wherein the block chain comprises a data chain and a value chain, and the asset value evaluation method comprises the following steps: acquiring a data set of the data assets, and uploading the data set to the data chain for recording and storing; participating in bidding by a user node on the value chain according to the data set; calculating the bids of the user nodes participating in the bids on the value chain according to an intelligent contract of a preset rule to obtain a bidding result; and obtaining an evaluation result of the data asset value according to the bidding result, wherein a double-chain mechanism of data chain and value chain ensures that the recording, pricing and transaction processes of the data asset are realized on the chain, so that the evaluation method has traceability and enhances the reliability of the data asset value evaluation. Moreover, the two chains respectively process the data assets and the data asset values, so that the superposition complexity and conflict hysteresis caused by the single chain processing the two types of information are avoided; the intelligent contract with the preset bidding rule is built in the value chain, the bidding result operation can be automatically executed, manual intervention is not needed, the bidding result is difficult to operate, the fairness and the credibility of data asset value evaluation are ensured, the preset bidding rule faces to different demand scenes, and the intelligent contract comprises two optional bidding mechanisms: the monopoly price mechanism and the VCG mechanism can take the benefits of both parties of bidding supply and demand of the data assets into consideration, the rationality and the sustainability of data asset value evaluation are ensured, and the data asset value recorded on a value chain shows a dynamic change trend along with the expansion of each bidding process, rather than static invariance, so as to adapt to the dynamic requirements of data asset management.
Drawings
FIG. 1 is a flow chart of a method for blockchain-based valuation of data assets in accordance with an embodiment of the present invention;
FIG. 2 is a diagram illustrating a data chain structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a data asset worth assessment implementation process according to an embodiment of the invention;
FIG. 4 is a flow chart of a method for blockchain-based valuation of data assets in accordance with another embodiment of the present invention;
FIG. 5 is a block diagram of an apparatus for evaluating the worth of data assets based on a blockchain according to an embodiment of the present invention;
FIG. 6 is a block diagram of an apparatus for valuing data assets based on a blockchain according to another embodiment of the present invention;
fig. 7 is a block diagram of an electronic device according to an embodiment of the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention constructs a safe and credible encryption transmission power grid digital asset transaction platform by combining a block chain and an intelligent contract technology, wherein the block chain is a distributed shared account book which is commonly maintained by nodes of the whole grid and used for storing historical transaction records or data information, the functions of decentralization, forgery prevention, falsification prevention and the like are realized by adopting technologies such as a distributed common identification mechanism, an asymmetric encryption algorithm, block chain storage and the like, the requirements of authenticity and safety of power grid data asset management are matched, and a feasible technical path is provided for the digital asset management of power grid big data. The intelligent contract is executable code which runs on the upper layer of the block chain and is identified by a unique address, and the digital assets can be transferred according to a set transaction rule by performing data reading and writing operations on the block chain. Based on the technical characteristics of the block chain, the transaction execution of the intelligent contract has the advantages of being traceable and irreversible. The method is beneficial to guaranteeing the privacy, the safety and the atomicity of the power grid data asset transaction.
The invention will be further described with reference to the following description and specific examples, taken in conjunction with the accompanying drawings:
the invention aims to provide a block chain-based data asset value evaluation device and method, electronic equipment and a storage medium, so that the evaluation method has traceability and enhances the reliability of data asset value evaluation.
FIG. 1 is a flow chart of a blockchain-based data asset worth assessment method of an embodiment of the present invention; as shown in fig. 1, the block chain comprises a data chain and a value chain, and the data asset value assessment method comprises the following steps:
s20, acquiring a data set of the data assets by the data chain, and recording and storing the data set;
s40, according to the data set, the value chain informs the user node to participate in bidding;
s60, calculating the bids of the user nodes participating in the bids by the value chain according to an intelligent contract of a preset rule to obtain a bid result;
and S80, obtaining the evaluation result of the data asset value according to the bidding result.
The invention provides a data asset value evaluation method based on a block chain, wherein the block chain comprises a data chain and a value chain, and the data chain acquires a data set of a data asset and records and stores the data set; participating in bidding by a user node on the value chain according to the data set; calculating the bids of the user nodes participating in the bids on the value chain according to an intelligent contract of a preset rule to obtain a bidding result; and obtaining an evaluation result of the data asset value according to the bidding result, wherein the final price paid by all bidding winning demanders is used as the evaluation result of the data asset value, and a double-chain mechanism of a data chain and a value chain ensures that the recording, pricing and transaction processes of the data asset are realized on the chain, so that the evaluation method has traceability and enhances the reliability of the data asset value evaluation.
Specifically, as shown in fig. 2, the data chain is composed of a group of blocks connected in series according to time, wherein the main part of each block records the details of the data set, and also records information including the height of the block, the head of the block, a time stamp, a counter of the data set, the size of the block, and the like; wherein, the block height refers to the number of blocks; the block head is the first 80 bytes in each block, and mainly comprises a last block head hash value used for ensuring that the blocks are connected in series in sequence; the time stamp records the generation time of the block; the data set counter records the number of data sets contained in the block; the block size refers to the block capacity, and can be generally set according to the actual operation requirement of the system, for example: set to 10M, the block size is typically upper bounded.
Specifically, the data set includes: the method comprises the steps of identifying data and information related to value evaluation, wherein the information related to the value evaluation comprises data fields, data time span, data set size and missing items; one data set represents a data asset, each with a specific identifier a, e.g., # h12t20200430110823S12345n19 represents the 19 numbered data set submitted by the uploader with account address S12345 at 08 minutes 23 seconds at 11, 30 months, 4 months, 2020 in block height 12. Each data set comprises, in addition to identifier a, various items of information C relating to its value assessment: the data fields are C1, data time span C2, data set size C3, missing item C4 and the like, the data fields are used for better matching whether the data assets meet the requirements of the data fields by a demander, and the more accurate the matching is, the higher the value is; the larger the data time span is, the higher the value is; the larger the data collection is, the richer the contained information is, and the higher the value is; the fewer missing items, the higher the value.
It should be noted that the preset bidding rule is oriented to different demand scenarios, and includes two types of selectable bidding mechanisms: monopoly Price mechanisms (MP for short) and VCG mechanisms (VCG-Clarke-Groves) need to be adaptively designed according to different user requirements. In order to avoid the loss of revenue of the data asset provider caused by strategic actions of the user, a proper bidding rule needs to be selected to ensure stable bidding balance in the continuous dynamic bidding process. Therefore, aiming at different data asset demand scales, the invention respectively adopts a monopolized Price (MP for short) mechanism and a VCG (Vickrey-Clarke-Groves) mechanism to carry out bidding.
When the data asset demand is sufficiently large, it can be bid using the MP mechanism to achieve value assessment. Generally, the greater the number of requesters, the higher the value of the data asset.
When the data asset demand is not large, the VCG mechanism can be employed to achieve value assessment in a motivationally consistent manner during the course of data asset trading. And when the data asset demand is not large, the calculation difficulty of the VCG mechanism is low.
Specifically, when data set A is formally recorded into the data chain, the value chain will simultaneously update information, mainly including identifier A and its initial value V0.
FIG. 4 is a flow chart of a method for blockchain-based valuation of data assets in accordance with another embodiment of the present invention; as shown in fig. 4, the data asset worth assessment method further includes:
and S100, updating the value of the data asset according to the new bidding result.
The user determines the need for certain data assets based on information on the data chain. If there is a purchase demand for a data asset, a transaction request can be initiated on the value chain for that data set, and the transaction is recorded in the value chain.
The summary of the transaction includes: user account address U, data set identifier a, origination time G, record time D, and maximum price B willing to pay. In order to ensure the smooth circulation of the data assets in the actual trading market, B is priced by RMB.
FIG. 3 is a schematic diagram of a data asset worth assessment implementation process according to an embodiment of the invention; as shown in fig. 3, starting with the time AD1 at which the first transaction request for this data set a was recorded into a block, the bidding process needs to be completed within a specified time limit T, namely: completed at time AD1+ T. T is generally the same as the time interval of the generation of the blocks, for example: the time interval for each block generation is X minutes and the bidding process needs to be completed after n new blocks are generated, then the specified period T is nX minutes. The transaction requests submitted for dataset a during the [ AD1, AD1+ T ] period all participate in the current round's bidding.
At time AD1+ T, the smart contract, with pre-set bidding rules, will automatically perform a trade bid. In general, m winning users may be selected for each round of bidding and the price to be paid by each winning user for the data asset is calculated.
Under the VCG mechanism, users m before the bidding ranking can successfully buy the data asset, and winning users need to pay corresponding fees to the data asset supplier according to the lost revenue brought by the participation bidding of the winning users to other users.
Under the MP mechanism, the data asset is sold to the top m users with the highest price, and the cost of each user to be paid is the same, namely monopoly price. At this monopolized price, the data asset provider's revenue is optimized. In addition, when there are enough users, the multi-strategy bidding attack is difficult to work, and the monopoly price mechanism is close to incentive-compatible, that is, the user's profit-maximizing strategy ultimately leads to the maximization of the profit of the data asset supplier.
Only legitimate transaction information can be recorded into the blockchain, and to ensure the validity of the transaction, when miners' votes exceeding 1/2 are obtained, the transactions of these winning users can be finally confirmed and updated into new blocks. Preferably, the winning user's deals are eventually confirmed and updated into new tiles if and only if miner votes in excess of 2/3 are obtained. Similarly, the transaction of the non-winning user also receives a miner vote in excess of 2/3 to be discarded and updated into a new tile.
The m winning users can obtain their purchased data assets while being confirmed by the transaction. They need to pay the data asset provider a corresponding price and pay a fixed percentage of the commission to the miners confirming the transaction.
With the total price ultimately paid by the m winning users as the trading value of the data asset in the current round of bidding, the value of the data asset in the new block created after all trades participating in the current round of bidding have been processed is also updated from V0 to V1.
If there is still a user's purchase demand for the data asset after the time AD1+ T, a new round of transaction bidding is again initiated starting from the time the first transaction request was recorded thereafter. The value of the data asset is updated based on the results of the new round of bidding. With the continuous expansion of the bidding process, the dynamic change process of the data asset value can be obtained.
The embodiment of the invention provides a data asset value evaluation method based on a block chain, wherein the block chain comprises a data chain and a value chain, and the data chain acquires a data set of a data asset and records and stores the data set; participating in bidding by a user node on the value chain according to the data set; the value chain calculates the bids of the user nodes participating in the bidding according to an intelligent contract of a preset rule to obtain a bidding result; and obtaining an evaluation result of the data asset value according to the bidding result, wherein the final price paid by all bidding winning demanders is used as the evaluation result of the data asset value, and a double-chain mechanism of a data chain and a value chain ensures that the recording, pricing and transaction processes of the data asset are realized on the chain, so that the evaluation method has traceability and enhances the reliability of the data asset value evaluation. Moreover, the two chains respectively process the data assets and the data asset values, so that the superposition complexity and conflict hysteresis caused by the single chain processing the two types of information are avoided; the intelligent contract with the preset bidding rule is built in the value chain, the bidding result operation can be automatically executed, manual intervention is not needed, the bidding result is difficult to operate, the fairness and the credibility of data asset value evaluation are ensured, the preset bidding rule faces to different demand scenes, and the intelligent contract comprises two optional bidding mechanisms: the monopoly price mechanism and the VCG mechanism can take the benefits of both parties of bidding supply and demand of the data assets into consideration, the rationality and the sustainability of data asset value evaluation are ensured, and the data asset value recorded on a value chain shows a dynamic change trend along with the expansion of each bidding process, rather than static invariance, so as to adapt to the dynamic requirements of data asset management.
Fig. 5 is a block diagram of a data asset worth evaluating apparatus according to an embodiment of the present invention, where the block chain includes a data chain and a value chain, as shown in fig. 5, the asset worth evaluating apparatus includes:
the acquisition module 20 is used for acquiring a data set of the data assets by the data chain, and recording and storing the data set;
a bidding module 40, configured to notify the user node of participation in bidding according to the data set by the value chain;
the calculation module 60 is configured to calculate bids of user nodes participating in bidding according to an intelligent contract of a preset rule by the value chain to obtain a bidding result;
and the processing module 80 is used for obtaining an evaluation result of the data asset value according to the bidding result.
The block chain comprises a data chain and a value chain, and a data set of the data assets is obtained through the obtaining module 20 and uploaded to the data chain for recording and storing; the bidding module 40 participates in bidding on the value chain by the user node according to the data set; the calculation module 60 calculates the bids of the user nodes participating in the bidding on the value chain according to an intelligent contract of a preset rule to obtain a bidding result; the processing module 80 obtains the evaluation result of the data asset value according to the bidding result, the final price paid by all bidding winning demanders is used as the evaluation result of the data asset value, and the double-chain mechanism of data chain and value chain ensures that the recording, pricing and transaction processes of the data asset are realized on the chain, so that the evaluation method has traceability and enhances the reliability of the data asset value evaluation.
Optionally, the data asset worth evaluating apparatus further includes:
an update module 100, configured to update the value of the data asset according to a new round bidding result; with the continuous expansion of the bidding process, the dynamic change process of the data asset value can be obtained.
Fig. 7 is a block diagram showing the configuration of an electronic apparatus according to an embodiment of the present invention, and as shown in fig. 7, the computer electronic apparatus includes a Central Processing Unit (CPU)701 that can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM)702 or a program loaded from a storage section 708 into a Random Access Memory (RAM) 703. In the RAM 703, various programs and data necessary for the operation of the system 700 are also stored. The CPU 701, the ROM 702, and the RAM 703 are connected to each other via a bus 704. An input/output (I/O) interface 705 is also connected to bus 704.
The following components are connected to the I/O interface 705: an input section 1006 including a keyboard, a mouse, and the like; an output section 707 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 708 including a hard disk and the like; and a communication section 709 including a network interface card such as a LAN card, a modem, or the like. The communication section 709 performs communication processing via a network such as the internet. The drive 310 is also connected to the I/O interface 705 as needed. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 710 as necessary, so that a computer program read out therefrom is mounted into the storage section 708 as necessary.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various 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.
The application also provides a computer readable storage medium, which can be the computer readable storage medium contained in the block chain-based data asset value evaluation device in the above embodiment; or it may be a computer-readable storage medium that exists separately and is not built into the electronic device. The computer readable storage medium stores one or more programs for use by one or more processors in performing the blockchain based data asset value assessment method described herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A data asset value assessment method based on a block chain is characterized in that the block chain comprises a data chain and a value chain, and the asset value assessment method comprises the following steps:
the data chain acquires a data set of the data assets, and records and stores the data set;
according to the data set, the value chain informs the user nodes to participate in bidding;
the value chain calculates the bids of the user nodes participating in the bidding according to an intelligent contract of a preset rule to obtain a bidding result;
and obtaining an evaluation result of the data asset value according to the bidding result.
2. The data asset worth assessment method according to claim 1, wherein said data chain is comprised of a set of blocks concatenated in time, wherein the main portion of each block records data set details, and further records include block height, block header, time stamp, data set counter and block size.
3. The data asset worth assessment method according to claim 1, wherein said data set comprises: the data identification and the information related to the value evaluation comprise data fields, data time span, data set size and missing items.
4. The data asset value assessment method according to claim 1, wherein the preset bidding rules are oriented to different demand scenarios, and comprise two types of selectable bidding mechanisms: monopoly pricing mechanisms and VCG mechanisms.
5. The method of claim 3, wherein the update information comprises an identifier and an initial value, and the update information is updated synchronously on the value chain after the data chain acquires the data set and records and stores the data set.
6. The data asset worth assessment method according to any one of claims 1-5, wherein said data asset worth assessment method further comprises: the value of the data asset is updated based on the results of the new round of bidding.
7. A blockchain-based data asset worth assessment apparatus, said blockchain including a data chain and a value chain, said asset worth assessment apparatus comprising:
the acquisition module is used for acquiring a data set of the data assets by the data chain, and recording and storing the data set;
the bidding module is used for informing the user nodes of participating in bidding according to the data set by the value chain;
the calculation module is used for calculating the bids of the user nodes participating in the bids by the value chain according to an intelligent contract of a preset rule to obtain a bid result;
and the processing module is used for obtaining an evaluation result of the data asset value according to the bidding result.
8. The data asset worth assessment device according to claim 7, further comprising:
and the updating module is used for updating the value of the data asset according to the bidding result of the new round.
9. An electronic device, comprising:
a processor; a memory for storing processor-executable instructions;
wherein the processor implements the method of any one of claims 1-6 by executing the executable instructions.
10. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 6.
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| CN113869877A (en) * | 2021-10-13 | 2021-12-31 | 重庆葵海数字科技有限公司 | Management method for digital assets of service e-commerce platform |
| CN113988606A (en) * | 2021-10-26 | 2022-01-28 | 北京市科学技术情报研究所 | Block chain-based data asset value evaluation method |
| CN114116733A (en) * | 2022-01-26 | 2022-03-01 | 国网区块链科技(北京)有限公司 | Data abnormal operation detection and tracing system and method for distribution automation system |
| CN115439150A (en) * | 2022-08-31 | 2022-12-06 | 华教联创(厦门)科技有限公司 | Data asset bargaining method and device |
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| CN114116733A (en) * | 2022-01-26 | 2022-03-01 | 国网区块链科技(北京)有限公司 | Data abnormal operation detection and tracing system and method for distribution automation system |
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