CN115409622A - Block chain based distributed media material data transaction method - Google Patents
Block chain based distributed media material data transaction method Download PDFInfo
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- CN115409622A CN115409622A CN202210687627.3A CN202210687627A CN115409622A CN 115409622 A CN115409622 A CN 115409622A CN 202210687627 A CN202210687627 A CN 202210687627A CN 115409622 A CN115409622 A CN 115409622A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
- G06Q20/4014—Identity check for transactions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Abstract
The invention discloses a distributed media material data transaction method based on a block chain, wherein a platform operator and a data supplier construct a block chain network for performing media material data transaction, the platform operator deploys a media material data transaction intelligent contract and a data directory service node, the data supplier deploys a media material data supply intelligent contract in a block chain node program and deploys a data discovery tool locally, the data supplier manages local media material data through the data discovery tool and calls the media material data supply intelligent contract to issue to the block chain network, a consumer purchases required media material data through the platform operator, calls the media material data transaction intelligent contract to perform transaction recording, calls the media material data supply intelligent contract to extract a media material data file, and therefore media material data transaction is completed. The invention realizes the credible transaction of the media material data by the distributed multi-party participation in the media material data transaction.
Description
Technical Field
The invention belongs to the technical field of blockchain, and particularly relates to a distributed media material data transaction method based on blockchain.
Background
The traditional electronic commerce platform is mainly constructed by adopting a centralized idea, data of all commodities need to be stored at a central end, the issuing process and the transaction process of the commodities are monitored by a center, and particularly, the electronic commerce platform is used for e-commerce service aiming at digital asset files: in the whole transaction process, the data asset supplier must submit asset shelving information and core asset files to the central end in advance, and the consumer retrieves the files through the central end after purchasing so as to complete the transaction, so that the ownership rights of the asset supplier to the core asset files cannot be guaranteed, and the central end must be completely trusted to achieve the transaction process. Obviously, this model is not equal for the suppliers, and there are three major problems:
1. the storage of the files at the central end is in nominal ownership for the supplier but is out of actual regulation;
2. the whole transaction process is controlled by a central terminal, and the credibility is not high because no multi-party participation sense is formed;
3. for media materials, particularly video files, the file sizes of the media materials may be different from MB to TB, and synchronizing data is a difficult problem for suppliers with a large amount of media materials, the files are large and very difficult to complete transmission of the files in a short time, incremental modification of the files also needs to be synchronized to a central end every time, and the central end is used for storing data of a large amount of suppliers, the requirements of storage formats are different, and multiple times of adaptation is possibly needed, so that the requirements of storage capacity and network transmission bandwidth are greatly improved by centralized storage; meanwhile, for the central end, not only data synchronization of the supplier needs a large amount of network bandwidth, but also downloading of assets purchased by the consumer needs to temporarily use a certain bandwidth from the central end, which is very large network pressure for the central platform.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a distributed media material data transaction method based on a block chain, which is characterized in that distributed parties participate together to ensure that a data supplier still keeps the control capability of the full authority while issuing the media material data of the data supplier, and meanwhile, the credibility of transaction parties and the transparency of the whole process can be ensured for consumers, so that the credible transaction of the media material data is realized.
In order to achieve the above object, the block chain-based distributed media material data transaction method of the present invention includes the following steps:
s1: the method comprises the following steps that a platform operator and a data supplier construct a blockchain network for carrying out media material data transaction, and specifically comprises the following steps:
s1.1: the platform operator starts the establishment of the initial node of the block chain, completes the verification of the created blocks of the block chain, deploys the intelligent contract of the media material data transaction, and constructs a data directory service node program with a display interface for classifying and displaying the abstract information of the commonly identified linked media material data in the block chain, wherein the display interface is used for being browsed by a data consumer;
s1.2: the data supplier registers to the platform operator, the platform operator audits identity registration information of the data supplier, the data supplier registration is completed after the audit is passed, and a block link point deployment installation package is sent to the data supplier, wherein the block link point deployment installation package comprises a block link point program, a media material data supply intelligent contract and a data discovery tool, and the block link point program is an operation carrier for executing the media material data supply intelligent contract; the media material data supply intelligent contract is used for the data supplier to complete the release and data extraction of the media material data; the data discovery tool is used for local data browsing and management of a data supplier;
s1.3: after receiving the block chain node deployment installation package, a data provider deploys a block chain node program locally, connects an initial node of a block chain to join a block chain network, and then deploys media material data in the block chain node program to supply an intelligent contract; meanwhile, a data provider locally deploys a data discovery tool;
s2: the data supplier adopts the deployed data discovery tool to perform data discovery, and synchronizes data to be issued to the blockchain network, and the specific steps comprise:
s2.1: the data provider browses the local data source by using a data discovery tool, and selects local media material data to be released;
s2.2: the method comprises the steps that a data supplier generates summary information including media material data classification, labels, prices and thumbnails for local media material data to be issued, the summary information of the media material data to be issued is sent to local block link nodes, then a media material data supply intelligent contract is called, the summary information of the media material data to be issued is uploaded to a block link network, and the summary information of the media material data to be issued is subjected to consensus verification by the block link network and then stored in each node of the block link network in a block mode;
s2.3: a data directory service node program of a platform operator periodically analyzes summary information of all media material data from the latest block in a timing polling mode, and then renders the summary information to a display interface in a classified manner;
s3: the consumer browses the media material data through the display interface and purchases the required media material data through the platform operator, and the specific steps comprise:
s3.1: the consumer registers and charges through the data directory service node program of the platform operator;
s3.2: a consumer browses summary information of media material data issued by a data provider through a display interface in a data directory service node program of a platform operator, and orders the media material data through the data directory service node program after determining that certain media material data needs to be purchased; after receiving ordering information, the data directory service node program forwards the ordering information to block chain link points of a platform operator, invokes a media material data transaction intelligent contract to finish fund freezing of a consumer, generates a transaction record which comprises consumer identity information, data supplier information and media material data information, marks the state of the transaction record as purchased, and delivers the transaction record to a block chain network for consensus verification, and stores the transaction record to each node in the block chain network after the consensus verification is passed;
s3.3: when a consumer needs to extract purchased media material data, checking a purchase history record in a data directory service node program and selecting to download the media material data, wherein the data directory service node program generates a download authorization request for the media material data, the download authorization request comprises consumer identity information and a transaction record identifier, and then the download authorization request is sent to a block link point of a platform operator;
the method comprises the following steps that a blockchain node extracts consumer identity information and a transaction record identifier in a download authorization request, and calls a media material data transaction intelligent contract to check the transaction validity, and the specific checking method comprises the following steps: inquiring whether the transaction record exists in the blockchain network according to the transaction record identifier, if so, further judging whether the consumer identity information in the blockchain transaction record is consistent with the message fee identity information in the download authorization request, if so, checking to pass, otherwise, checking not to pass; when the verification is passed, the media material data transaction intelligent contract redirects a downloading authorization request to a block chain link point of a data provider according to data provider information in a block chain transaction record, the block chain link point of the data provider calls a media material data supply intelligent contract after receiving the downloading authorization request, the media material data supply intelligent contract calls a data discovery tool to position to a media material data file according to the media material data information in the transaction record, and finally the media material data file is returned to a consumer in a streaming form according to a source original path of the downloading authorization request; when the verification fails, the intelligent contract for the media material data transaction feeds back error information to the consumer through the data directory service node program;
s3.4: after the media material data is downloaded successfully, the consumer can select to confirm the transaction by himself or the square operator confirms the transaction automatically after the waiting time is reached, after the transaction is confirmed, the platform operator calls a media material data transaction intelligent contract to unfreeze the transaction fund and transfer the transaction fund to a corresponding data supplier, meanwhile, the state of updating the transaction record in the block chain is 'finished', and the whole transaction flow is ended;
if the consumer selects refund before downloading the media material data, the consumer sends a transaction refund request through the data directory service node program, wherein the transaction refund request comprises consumer identity information and a transaction record identifier, and then the transaction refund request is sent to a block link point of a platform operator; the block chain node extracts consumer identity information and a transaction record identifier in the transaction refund request, calls a media material data transaction intelligent contract to check the transaction validity, when the check is passed, the media material data transaction intelligent contract unfreezes transaction funds and refunds the transaction funds to the consumer, and meanwhile, the state of updating the transaction record in the block chain is 'refunded'; when the verification fails, the intelligent contract for the media material data transaction feeds back error information to the consumer through the data directory service node program.
The invention relates to a distributed media material data transaction method based on a block chain.A platform operator and a data supplier construct a block chain network for performing media material data transaction, wherein the platform operator deploys a media material data transaction intelligent contract and a data directory service node, the data supplier deploys a media material data supply intelligent contract in a block chain node program and deploys a data discovery tool locally, the data supplier manages local media material data through the data discovery tool and calls the media material data supply intelligent contract to issue to the block chain network, a consumer purchases required media material data through the platform operator, calls the media material data transaction intelligent contract to perform transaction recording, calls the media material data supply intelligent contract to extract a media material data file, and thereby the media material data transaction is completed.
The invention puts a centralized data storage mechanism in the prior art back to the local data network of each participating data provider, and the data provider only needs to manage the own media material data file in the local network and release the summary information of the media material data in a block chain mode, thereby reducing the transmission quantity of network data, improving the security and greatly improving the network performance of the whole block chain.
Drawings
FIG. 1 is a flow chart of an embodiment of a distributed media material data transaction method based on a blockchain according to the present invention;
FIG. 2 is a flow chart of the present invention for building a blockchain network;
fig. 3 is a schematic structural diagram of a block chain network in the present embodiment;
FIG. 4 is a flow chart of media material data discovery in the present invention;
fig. 5 is a flow chart of the transaction of the media material data in the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided in order to better understand the present invention for those skilled in the art with reference to the accompanying drawings. It is to be expressly noted that in the following description, a detailed description of known functions and designs will be omitted when it may obscure the subject matter of the present invention.
Examples
Fig. 1 is a flowchart of an embodiment of a distributed media material data transaction method based on a blockchain according to the present invention. As shown in fig. 1, the method for trading distributed media material data based on a block chain of the present invention includes the following specific steps:
s101: building a block chain network:
a blockchain network for conducting media material data transactions is first constructed by a platform operator and a data provider. Fig. 2 is a flow chart of building a blockchain network in the present invention. As shown in fig. 2, the specific steps of constructing the block chain network in the present invention include:
s201: constructing a basic network environment:
the platform operator starts the establishment of the initial node of the block chain, completes the verification of the creature block of the block chain, deploys the intelligent contract of the media material data transaction, and constructs a data directory service node program with a display interface for classifying and displaying the abstract information of the media material data which are commonly identified and linked in the block chain, wherein the display interface is used for being browsed by a data consumer.
The media material data transaction intelligent contract can be written according to actual conditions, and in this embodiment, the media material data transaction intelligent contract includes the following core interfaces: 1. data release: after the data supplier completes the filling of the relevant information of the media material data according to the data specification, the interface is called through a media material data transaction supply contract to ensure that the media material data is subjected to the whole-network consensus verification, so as to obtain the public release; 2. and (4) freezing fund: after the consumer selects the media material data, clicking to purchase and trigger the interface, and then deducting and freezing the corresponding amount from the consumer account until the transaction is finished; 3. transaction processing: including transaction state modification processing, state verification, transaction confirmation, etc.
S202: data provider registration:
the data supplier registers to the platform operator, the platform operator audits identity registration information of the data supplier, the data supplier registration is completed after the audit is passed, and a block chain link point deployment installation package is sent to the data supplier, wherein the block chain link point deployment installation package comprises a block chain link point program, a media material data supply intelligent contract and a data discovery tool, and the block chain link point program is an operation carrier for executing the media material data supply intelligent contract and is a transaction original processor in a transaction network; the media material data supply intelligent contract is used for the data supplier to complete the release and data extraction of the media material data; the data discovery tool is used for local data browsing and management by data providers, and the data providers can use the tool to manage media material data.
S203: data provider local deployment:
after receiving the block chain node deployment installation package, the data provider deploys a block chain node program locally, connects the initial node of the block chain to join a block chain network, and then deploys media material data supply intelligent contracts in the block chain node program. While the data provider deploys the data discovery tool locally.
Through the steps, the blockchain network for the transaction of the media material data can be established. Fig. 3 is a schematic diagram of a block chain network in this embodiment. As shown in fig. 3, the blockchain network includes 1 platform operator and 4 data providers, the platform operator provides the data directory service node program, the media material data sources are still stored locally in the providers, and the data source information is uploaded to the data directory service node program through the blockchain node program running locally.
The media material data consumer can access the data directory service node program to obtain the data source information, view the asset abstract information and complete the operations of purchasing, downloading and extracting the assets. In practical applications, the data consumer may directly implement the above operations through a web page, or may perform the operations through a dedicated APP.
S102: media material data discovery:
after the blockchain network for performing the media material data transaction is constructed, firstly, a data supplier needs to perform data discovery by using a deployed data discovery tool, and data to be issued is synchronized to the blockchain network. Fig. 4 is a flow chart of media material data discovery in the present invention. As shown in fig. 4, the specific steps of media material data discovery in the present invention include:
s401: local media material data discovery:
and browsing the local data source by the data provider by using a data discovery tool, and selecting local media material data to be published. Data sources refer to data management services that support file storage, such as local file system, minio, and the like. Taking a Minio data source as an example, a data provider needs to input connection information such as an IP, a port, a user name, a password and the like of a corresponding service, a tool interface is connected to a specified file server, a storage directory structure of a media asset file is displayed according to a storage specification of Minio, basic operations such as copying, deleting, renaming and the like can be performed on the data file or a folder at the moment, and if data is added, a new media material file can be uploaded and imported into a local system.
S402: media material data release:
the data supplier generates summary information including media material data classification, labels, prices and thumbnails for local media material data to be issued, the summary information of the media material data to be issued is sent to local block chain nodes, then media material data supply intelligent contracts are called, the summary information of the media material data to be issued is uploaded to a block chain network, and the summary information of the media material data to be issued is subjected to consensus verification by the block chain network and then is stored in each node of the block chain network in blocks.
S403: data directory synchronization:
and the data directory service node program of the platform operator periodically analyzes summary information of all the media material data from the latest block in a timing polling mode, and then renders the summary information to a display interface in a classified manner.
Through the process, the whole process of the media material data distribution of the data supplier is finished, and the media material data can be browsed and purchased by data consumers.
S103: media material data transaction:
after the step S102 finishes publishing the media material data, the consumer can browse the media material data through the display interface, and purchase the required media material data through the platform operator. Fig. 5 is a flow chart of the transaction of the media material data in the present invention. As shown in fig. 5, the media material data transaction of the present invention specifically includes the following steps:
s501: consumer registration:
the consumer registers and charges through the data directory service node program of the platform operator.
S502: media material data purchase:
a consumer browses summary information of media material data issued by a data supplier through a display interface in a data directory service node program of a platform operator, and orders can be placed on the media material data through the data directory service node program after the fact that certain media material data needs to be purchased is determined. And after receiving the ordering information, the data directory service node program forwards the ordering information to the block chain link points of the platform operator, calls a media material data transaction intelligent contract to complete fund freezing of a consumer, generates a transaction record comprising consumer identity information, data supplier information and media material data information, marks the transaction record state as purchased, delivers the transaction record state to the block chain network for consensus verification, and stores the consensus verification to each node in the block chain network after the consensus verification is passed.
S503: media material data extraction:
when a consumer needs to extract purchased media material data, the purchase history record is checked in a data directory service node program and the media material data is selected to be downloaded, the data directory service node program generates a download authorization request for the media material data, the download authorization request comprises consumer identity information and a transaction record identifier, and then the download authorization request is sent to a block link point of a platform operator.
The method comprises the following steps that a blockchain node extracts consumer identity information and a transaction record identifier in a download authorization request, and calls a media material data transaction intelligent contract to check the transaction validity, and the specific checking method comprises the following steps: and inquiring whether the transaction record exists in the blockchain network according to the transaction record identifier, if so, further judging whether the consumer identity information in the blockchain transaction record is consistent with the message fee identity information in the download authorization request, if so, checking to pass, and otherwise, checking not to pass. When the verification is passed, the media material data transaction intelligent contract redirects a downloading authorization request to a block chain link point of a data provider according to data provider information in a block chain transaction record, the block chain link point of the data provider calls a media material data supply intelligent contract after receiving the downloading authorization request, the media material data supply intelligent contract calls a data discovery tool to locate a media material data file according to the media material data information in the transaction record, and finally the media material data file is returned to a consumer in a streaming form according to a source original path of the downloading authorization request. When the verification fails, the intelligent contract for the media material data transaction feeds back error information to the consumer through the data directory service node program.
S504: transaction confirmation/refund:
after the media material data is downloaded successfully, the consumer can choose to confirm the transaction by himself or the square operator confirms the transaction automatically after the waiting time is reached, after the transaction is confirmed, the platform operator calls a media material data transaction intelligent contract to unfreeze the transaction fund and transfer the transaction fund to a corresponding data supplier, meanwhile, the state of updating the transaction record in the block chain is 'finished', and the whole transaction flow is ended.
The consumer can select refund before downloading the media material data, if the consumer selects refund, the consumer sends a transaction refund request through a data directory service node program, the transaction refund request comprises consumer identity information and a transaction record identifier, and then the transaction refund request is sent to a block link point of a platform operator. The blockchain node extracts consumer identity information and a transaction record identifier in the transaction refund request, calls a media material data transaction intelligent contract to check the transaction validity, when the check is passed, the media material data transaction intelligent contract unfreezes transaction funds and refunds the transaction funds to the consumer, and meanwhile, the state of updating the transaction record in the blockchain is 'refunded'; when the verification fails, the intelligent contract for the media material data transaction feeds back error information to the consumer through the data directory service node program.
Although the illustrative embodiments of the present invention have been described in order to facilitate those skilled in the art to understand the present invention, it is to be understood that the present invention is not limited to the scope of the embodiments, and that various changes may be made apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined in the appended claims, and all matters of the invention using the inventive concepts are protected.
Claims (1)
1. A distributed media material data transaction method based on a block chain is characterized by comprising the following steps:
s1: the method comprises the following steps that a platform operator and a data supplier construct a blockchain network for carrying out media material data transaction, and specifically comprises the following steps:
s1.1: the platform operator starts the establishment of the initial node of the block chain, completes the verification of the created blocks of the block chain, deploys the intelligent contract of the media material data transaction, and constructs a data directory service node program with a display interface for classifying and displaying the abstract information of the commonly identified linked media material data in the block chain, wherein the display interface is used for being browsed by a data consumer;
s1.2: the data supplier registers to the platform operator, the platform operator audits identity registration information of the data supplier, the data supplier registration is completed after the audit is passed, and a block link point deployment installation package is sent to the data supplier, wherein the block link point deployment installation package comprises a block link point program, a media material data supply intelligent contract and a data discovery tool, and the block link point program is an operation carrier for executing the media material data supply intelligent contract; the media material data supply intelligent contract is used for the data supplier to complete the release and data extraction of the media material data; the data discovery tool is used for local data browsing and management of a data supplier;
s1.3: after receiving the block chain node deployment installation package, a data provider locally deploys a block chain node program, connects an initial node of a block chain to join a block chain network, and then deploys a media material data supply intelligent contract in the block chain node program; meanwhile, a data provider locally deploys a data discovery tool;
s2: the data supplier adopts the deployed data discovery tool to perform data discovery, and synchronizes data to be issued to the blockchain network, and the specific steps comprise:
s2.1: browsing a local data source by a data provider by using a data discovery tool, and selecting local media material data to be released;
s2.2: the method comprises the steps that a data provider generates summary information including media material data classification, labels, prices and thumbnails for local media material data to be issued, the summary information of the media material data to be issued is sent to local block chain nodes, then media material data supply intelligent contracts are called, the summary information of the media material data to be issued is uploaded to a block chain network, and the summary information of the media material data to be issued is subjected to consensus verification by the block chain network and then stored in each node of the block chain network in a block mode;
s2.3: a data directory service node program of a platform operator periodically analyzes summary information of all media material data from the latest block in a timing polling mode, and then renders the summary information to a display interface in a classified manner;
s3: the consumer browses the media material data through the display interface and purchases the required media material data through the platform operator, and the specific steps comprise:
s3.1: the consumer registers and charges through a data directory service node program of a platform operator;
s3.2: a consumer browses summary information of media material data issued by a data provider through a display interface in a data directory service node program of a platform operator, and orders the media material data through the data directory service node program after determining that certain media material data needs to be purchased; after receiving ordering information, the data directory service node program forwards the ordering information to block chain link points of a platform operator, invokes a media material data transaction intelligent contract to finish fund freezing of a consumer, generates a transaction record which comprises consumer identity information, data supplier information and media material data information, marks the state of the transaction record as purchased, and delivers the transaction record to a block chain network for consensus verification, and stores the transaction record to each node in the block chain network after the consensus verification is passed;
s3.3: when a consumer needs to extract purchased media material data, checking a purchase history record in a data directory service node program and selecting to download the media material data, wherein the data directory service node program generates a download authorization request for the media material data, the download authorization request comprises consumer identity information and a transaction record identifier, and then the download authorization request is sent to a block link point of a platform operator;
the method comprises the following steps that a blockchain node extracts consumer identity information and a transaction record identifier in a download authorization request, and calls a media material data transaction intelligent contract to check transaction validity, and the specific checking method comprises the following steps: inquiring whether the transaction record exists in the blockchain network according to the transaction record identifier, if so, further judging whether the consumer identity information in the blockchain transaction record is consistent with the message fee identity information in the download authorization request, if so, checking to pass, otherwise, checking not to pass; when the verification is passed, the media material data transaction intelligent contract redirects a downloading authorization request to a block chain link point of a data provider according to data provider information in a block chain transaction record, the block chain link point of the data provider calls a media material data supply intelligent contract after receiving the downloading authorization request, the media material data supply intelligent contract calls a data discovery tool to position to a media material data file according to the media material data information in the transaction record, and finally the media material data file is returned to a consumer in a streaming form according to a source original path of the downloading authorization request; when the verification fails, the intelligent contract for the media material data transaction feeds back error information to the consumer through the data directory service node program;
s3.4: after the media material data is downloaded successfully, the consumer can select to confirm the transaction by himself or the square operator confirms the transaction automatically after the waiting time is reached, after the transaction is confirmed, the platform operator calls a media material data transaction intelligent contract to unfreeze the transaction fund and transfer the transaction fund to the corresponding data supplier, meanwhile, the state of updating the transaction record in the block chain is 'finished', and the whole transaction flow is ended.
If the consumer selects refund before downloading the media material data, the consumer sends a transaction refund request through the data directory service node program, wherein the transaction refund request comprises consumer identity information and a transaction record identifier, and then the transaction refund request is sent to a block link point of a platform operator; the blockchain node extracts consumer identity information and a transaction record identifier in the transaction refund request, calls a media material data transaction intelligent contract to check the transaction validity, when the check is passed, the media material data transaction intelligent contract unfreezes transaction funds and refunds the transaction funds to the consumer, and meanwhile, the state of updating the transaction record in the blockchain is 'refunded'; when the verification fails, the intelligent contract for the media material data transaction feeds back error information to the consumer through the data directory service node program.
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| CN116681813A (en) * | 2023-07-28 | 2023-09-01 | 山东舜网传媒股份有限公司 | 3D scene rendering method and system in browser of blockchain original authentication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116681813A (en) * | 2023-07-28 | 2023-09-01 | 山东舜网传媒股份有限公司 | 3D scene rendering method and system in browser of blockchain original authentication |
| CN116681813B (en) * | 2023-07-28 | 2023-11-03 | 山东舜网传媒股份有限公司 | 3D scene rendering method and system in browser of blockchain original authentication |
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