CN110634000A - Tea flow information tracing method and device based on block chain - Google Patents
Tea flow information tracing method and device based on block chain Download PDFInfo
- Publication number
- CN110634000A CN110634000A CN201910911624.1A CN201910911624A CN110634000A CN 110634000 A CN110634000 A CN 110634000A CN 201910911624 A CN201910911624 A CN 201910911624A CN 110634000 A CN110634000 A CN 110634000A
- Authority
- CN
- China
- Prior art keywords
- tea
- information
- block chain
- block
- node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 241001122767 Theaceae Species 0.000 claims abstract description 171
- 238000012795 verification Methods 0.000 claims abstract description 29
- 238000004806 packaging method and process Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
-
- 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
- G06Q30/018—Certifying business or products
-
- 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]
- G06Q30/0609—Buyer or seller confidence or verification
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Computer Security & Cryptography (AREA)
- General Health & Medical Sciences (AREA)
- Strategic Management (AREA)
- Marketing (AREA)
- Economics (AREA)
- Development Economics (AREA)
- Health & Medical Sciences (AREA)
- General Business, Economics & Management (AREA)
- Computer Hardware Design (AREA)
- Bioethics (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The application discloses a tea flow information tracing method and device based on a block chain, which are applied to block chain nodes, wherein the method comprises the following steps: receiving a tea factory information chaining request sent by a service node, wherein the service node is a manufacturer node, and the tea factory information chaining request comprises a private key signature of the service node; verifying the private key signature of the service node by using the public key of the service node; after the verification is passed, packaging the tea leaves factory information into a first block, so that the block chain system stores the first block into a block chain after performing consensus verification on the first block. The method can store the circulation information of the tea into the block chain, and is convenient for a user to inquire, so that the problem of false tea is solved.
Description
Technical Field
The invention relates to the technical field of internet big data, in particular to a tea flow information tracing method and device based on a block chain.
Background
Currently, the blockchain technology is a distributed stored ledger that uses technologies such as encryption algorithm and consensus mechanism. With the use of blockchain technology, more and more internet data is stored on the blockchain.
The block chain technology has the characteristics of non-falsification and information traceability, and solves the problem of counterfeit tea by using the block chain technology.
The foregoing description is merely for convenience in understanding and is not to be construed as limiting the prior art to the present application.
Disclosure of Invention
Based on the problems, the application discloses a tea flow information tracing method and device based on a block chain.
The application discloses in a first aspect, a tea flow information tracing method based on a block chain, which is applied to a block chain node, and the method comprises the following steps:
receiving a tea factory information chaining request sent by a service node, wherein the service node is a manufacturer node, and the tea factory information chaining request comprises a private key signature of the service node;
verifying the private key signature of the service node by using the public key of the service node;
after the verification is passed, packaging the tea leaves factory information into a first block, so that the block chain system stores the first block into a block chain after performing consensus verification on the first block.
In one possible embodiment, the method further comprises: receiving a tea trading information chaining request sent by a merchant node, wherein the tea trading information chaining request comprises a private key signature of the merchant node;
verifying the private key signature of the merchant node by using the merchant node public key;
after the verification is passed, the tea trading information is packaged into a second block, so that the second block is identified and verified by a block chain system and then stored into a block chain.
In one possible embodiment, the method further comprises: receiving a tea flow information query request sent by user equipment, wherein the tea flow information query request comprises a private key signature of the user equipment, and the user equipment is registered user equipment of the block chain system;
verifying the private key signature of the user equipment by using the public key of the user equipment;
and after the verification is passed, sending the tea circulation information to the user equipment, wherein the tea circulation information comprises tea delivery information and tea buying and selling information.
In a possible implementation manner, the tea circulation information query request includes information of tea, so that the block link points perform query of the tea circulation information according to the information of the tea; wherein,
the information of the tea leaves is used for generating the hash value of the tea leaves through a hash algorithm, and the hash value of the tea leaves is stored on a block chain; wherein the information of the tea leaves comprises one or more of a type of the tea leaves, a name of the tea leaves, a commodity of the tea leaves, and a manufacturer of the tea leaves.
In one possible embodiment, the tea leaf marketing information includes a seller of tea leaves, a purchaser of tea leaves, a name of tea leaves, and a marketing date;
the tea leaf factory information comprises the name of the tea leaf, the name of a manufacturer, the type of the tea leaf and the factory date.
In a possible implementation manner, the user equipment inquires the tea leaf factory information and the tea leaf marketing information corresponding to the tea leaves by scanning a two-dimensional code of the tea leaves.
In one possible embodiment, the method further comprises: receiving comment information of the tea leaves sent by the user equipment; and packaging the comment information of the tea leaves into a third block, so that the third block is subjected to consensus verification by a block chain system and then stored into a block chain.
The application discloses a tea flow information tracing device based on a block chain, wherein the device is a block chain node, and the block chain node comprises a receiving unit and a processing unit; wherein,
the receiving unit is used for receiving a tea factory information uplink request sent by a service node, wherein the service node is a manufacturer node, and the tea factory information uplink request comprises a private key signature of the service node;
the processing unit is used for verifying the private key signature of the service node by using the service node public key;
and after the verification is passed, the processing unit packs the tea leaves factory information into a first block, so that the block chain system stores the first block into a block chain after performing consensus verification on the first block.
In a possible implementation manner, the receiving unit receives a tea trading information uplink request sent by a merchant node, where the tea trading information uplink request includes a private key signature of the merchant node;
the processing unit is used for verifying the private key signature of the merchant node by using the merchant node public key;
and the processing unit is used for packaging the tea marketing information into a second block after the verification is passed, so that the second block is identified and verified by the block chain system and then stored in the block chain.
In a possible implementation manner, the blockchain node further includes a sending unit, where the receiving unit receives a tea flow information query request sent by a user equipment, where the tea flow information query request includes a private key signature of the user equipment, and the user equipment is a registered user equipment of the blockchain system;
the processing unit is used for verifying the private key signature of the user equipment by using the public key of the user equipment;
and the sending unit sends the tea circulation information to the user equipment after the verification is passed, wherein the tea circulation information comprises tea factory information and tea buying and selling information.
The application can store the circulation information of the tea into the block chain, and is convenient for users to inquire, so that the problem of false tea is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a tea flow information tracing method based on a block chain disclosed in the present application;
fig. 2 is a schematic structural diagram of a tea flow information tracing device based on a block chain according to the present disclosure;
fig. 3 is a schematic structural diagram of a tea flow information traceability device based on a block chain disclosed in the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are 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 terms "first" and "second" in this application are used for convenience of understanding only, and are not to be construed as sequential or limiting in any way.
For the purpose of facilitating understanding of the embodiments of the present invention, the following description will be further explained with reference to specific embodiments, which are not to be construed as limiting the embodiments of the present invention.
As shown in fig. 1, the tea flow information tracing method based on the blockchain is applied to the blockchain nodes, and the method includes steps S101-S103.
S101, receiving a tea factory information chaining request sent by a service node, wherein the service node is a factory node, and the tea factory information chaining request comprises a private key signature of the service node.
And S102, verifying the private key signature of the service node by using the public key of the service node.
S103, after the verification is passed, packaging the tea leaves factory information into a first block, and storing the first block into a block chain after the block chain system performs consensus verification on the first block.
In one example, the method further comprises: receiving a tea trading information chaining request sent by a merchant node, wherein the tea trading information chaining request comprises a private key signature of the merchant node;
verifying the private key signature of the merchant node by using the merchant node public key;
after the verification is passed, the tea trading information is packaged into a second block, so that the second block is identified and verified by a block chain system and then stored into a block chain.
In one example, the method further comprises: receiving a tea flow information query request sent by user equipment, wherein the tea flow information query request comprises a private key signature of the user equipment, and the user equipment is registered user equipment of the block chain system;
verifying the private key signature of the user equipment by using the public key of the user equipment;
and after the verification is passed, sending the tea circulation information to the user equipment, wherein the tea circulation information comprises tea delivery information and tea buying and selling information.
In one example, the tea circulation information query request includes information of tea, so that the block link points perform query of the tea circulation information according to the information of the tea; wherein,
the information of the tea leaves is used for generating the hash value of the tea leaves through a hash algorithm, and the hash value of the tea leaves is stored on a block chain; wherein the information of the tea leaves comprises one or more of a type of the tea leaves, a name of the tea leaves, a commodity of the tea leaves, and a manufacturer of the tea leaves.
In one example, the tea leaf marketing information includes a seller of tea leaves, a purchaser of tea leaves, a name of tea leaves, and a marketing date; the tea leaf factory information comprises the name of the tea leaf, the name of a manufacturer, the type of the tea leaf and the factory date.
In one example, the user equipment inquires the tea leaf factory information and the tea leaf marketing information corresponding to the tea leaf by scanning a two-dimensional code of the tea leaf.
In one example, the method further comprises: receiving comment information of the tea leaves sent by the user equipment;
and packaging the comment information of the tea leaves into a third block, so that the third block is subjected to consensus verification by a block chain system and then stored into a block chain.
The application can store the circulation information of the tea into the block chain, and is convenient for users to inquire, so that the problem of false tea is solved.
As shown in fig. 2, the tea leaf circulation information tracing device based on the block chain is a block chain node, and the block chain node includes a receiving unit and a processing unit.
The receiving unit is used for receiving a tea factory information uplink request sent by a service node, wherein the service node is a manufacturer node, and the tea factory information uplink request comprises a private key signature of the service node;
the processing unit is used for verifying the private key signature of the service node by using the service node public key;
and after the verification is passed, the processing unit packs the tea leaves factory information into a first block, so that the block chain system stores the first block into a block chain after performing consensus verification on the first block.
In one example, the receiving unit receives a tea trade information uplink request sent by a merchant node, wherein the tea trade information uplink request includes a private key signature of the merchant node;
the processing unit is used for verifying the private key signature of the merchant node by using the merchant node public key;
and the processing unit is used for packaging the tea marketing information into a second block after the verification is passed, so that the second block is identified and verified by the block chain system and then stored in the block chain.
In one example, the blockchain node further includes a sending unit, where the receiving unit receives a tea flow information query request sent by a user device, where the tea flow information query request includes a private key signature of the user device, and the user device is a registered user device of the blockchain system;
the processing unit is used for verifying the private key signature of the user equipment by using the public key of the user equipment;
and the sending unit sends the tea circulation information to the user equipment after the verification is passed, wherein the tea circulation information comprises tea factory information and tea buying and selling information.
The application can store the circulation information of the tea into the block chain, and is convenient for users to inquire, so that the problem of false tea is solved.
The application further discloses a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any of the above embodiments when executing the program.
The present application also discloses a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of any of the above embodiments.
Fig. 3 shows a schematic diagram of a computer device, which may include: a processor 310, a memory 320, an input/output interface 330, a communication interface 340, and a bus 350. Wherein the processor 340, the memory 320, the input/output interface 330, and the communication interface 340 are communicatively coupled to each other within the device via a bus 350.
The processor 310 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the technical solutions provided in the embodiments of the present specification.
The Memory 320 may be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, or the like. The memory 320 may store an operating system and other application programs, and when the technical solution provided by the embodiments of the present specification is implemented by software or firmware, the relevant program codes are stored in the memory 320 and called to be executed by the processor 310.
The input/output interface 330 is used for connecting an input/output module to realize information input and output. The i/o module may be configured as a component in a device (not shown) or may be external to the device to provide a corresponding function. The input devices may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output devices may include a display, a speaker, a vibrator, an indicator light, etc.
The communication interface 340 is used for connecting a communication module (not shown in the figure) to implement communication interaction between the present device and other devices. The communication module can realize communication in a wired mode (such as USB, network cable and the like) and also can realize communication in a wireless mode (such as mobile network, WIFI, Bluetooth and the like).
It should be noted that although the above-mentioned device only shows the processor 310, the memory 320, the input/output interface 330, the communication interface 340 and the bus 350, in a specific implementation, the device may also include other components necessary for normal operation. In addition, those skilled in the art will appreciate that the above-described apparatus may also include only those components necessary to implement the embodiments of the present description, and not necessarily all of the components shown in the figures.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the scope of the present invention should be included in the scope of the present invention.
Claims (10)
1. The tea flow information tracing method based on the block chain is characterized by being applied to a block chain node, and the method comprises the following steps:
receiving a tea factory information chaining request sent by a service node, wherein the service node is a manufacturer node, and the tea factory information chaining request comprises a private key signature of the service node;
verifying the private key signature of the service node by using the public key of the service node;
after the verification is passed, packaging the tea leaves factory information into a first block, so that the block chain system stores the first block into a block chain after performing consensus verification on the first block.
2. The method of claim 1, further comprising:
receiving a tea trading information chaining request sent by a merchant node, wherein the tea trading information chaining request comprises a private key signature of the merchant node;
verifying the private key signature of the merchant node by using the merchant node public key;
after the verification is passed, the tea trading information is packaged into a second block, so that the second block is identified and verified by a block chain system and then stored into a block chain.
3. The method of claim 2, further comprising:
receiving a tea flow information query request sent by user equipment, wherein the tea flow information query request comprises a private key signature of the user equipment, and the user equipment is registered user equipment of the block chain system;
verifying the private key signature of the user equipment by using the public key of the user equipment;
and after the verification is passed, sending the tea circulation information to the user equipment, wherein the tea circulation information comprises tea delivery information and tea buying and selling information.
4. The method according to claim 3, wherein the tea circulation information query request includes information of tea leaves, so that the block link points perform the query of the tea circulation information according to the information of the tea leaves; wherein,
the information of the tea leaves is used for generating the hash value of the tea leaves through a hash algorithm, and the hash value of the tea leaves is stored on a block chain; wherein the information of the tea leaves comprises one or more of a type of the tea leaves, a name of the tea leaves, a commodity of the tea leaves, and a manufacturer of the tea leaves.
5. The method of claim 2, wherein the tea leaf marketing information includes a seller of tea leaves, a purchaser of tea leaves, a name of tea leaves, and a marketing date;
the tea leaf factory information comprises the name of the tea leaf, the name of a manufacturer, the type of the tea leaf and the factory date.
6. The method according to claim 2, wherein a user device queries the tea leaf factory information and the tea leaf marketing information corresponding to the tea leaves by scanning a two-dimensional code of the tea leaves.
7. The method of claim 3, further comprising:
receiving comment information of the tea leaves sent by the user equipment;
and packaging the comment information of the tea leaves into a third block, so that the third block is subjected to consensus verification by a block chain system and then stored into a block chain.
8. The tea flow information tracing device based on the block chain is characterized in that the device is a block chain node, and the block chain node comprises a receiving unit and a processing unit; wherein,
the receiving unit is used for receiving a tea factory information uplink request sent by a service node, wherein the service node is a manufacturer node, and the tea factory information uplink request comprises a private key signature of the service node;
the processing unit is used for verifying the private key signature of the service node by using the service node public key;
and after the verification is passed, the processing unit packs the tea leaves factory information into a first block, so that the block chain system stores the first block into a block chain after performing consensus verification on the first block.
9. The apparatus according to claim 8, wherein the receiving unit receives a tea marketing information uplink request sent by a merchant node, the tea marketing information uplink request including a private key signature of the merchant node;
the processing unit is used for verifying the private key signature of the merchant node by using the merchant node public key;
and the processing unit is used for packaging the tea marketing information into a second block after the verification is passed, so that the second block is identified and verified by the block chain system and then stored in the block chain.
10. The apparatus of claim 9, wherein the blockchain node further comprises a transmitting unit, wherein,
the receiving unit is used for receiving a tea flow information inquiry request sent by user equipment, wherein the tea flow information inquiry request comprises a private key signature of the user equipment, and the user equipment is registered user equipment of the block chain system;
the processing unit is used for verifying the private key signature of the user equipment by using the public key of the user equipment;
and the sending unit sends the tea circulation information to the user equipment after the verification is passed, wherein the tea circulation information comprises tea factory information and tea buying and selling information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911624.1A CN110634000A (en) | 2019-09-25 | 2019-09-25 | Tea flow information tracing method and device based on block chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911624.1A CN110634000A (en) | 2019-09-25 | 2019-09-25 | Tea flow information tracing method and device based on block chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110634000A true CN110634000A (en) | 2019-12-31 |
Family
ID=68973993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910911624.1A Pending CN110634000A (en) | 2019-09-25 | 2019-09-25 | Tea flow information tracing method and device based on block chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110634000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112766440A (en) * | 2021-02-01 | 2021-05-07 | 中穗科技股份有限公司 | Tea production circulation traceability management method and system based on block chain |
-
2019
- 2019-09-25 CN CN201910911624.1A patent/CN110634000A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112766440A (en) * | 2021-02-01 | 2021-05-07 | 中穗科技股份有限公司 | Tea production circulation traceability management method and system based on block chain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110324363B (en) | Uplink method and device for Internet e-commerce associated data | |
| CN110634001A (en) | Food circulation information tracing method and device based on block chain | |
| CN110689358A (en) | Furniture circulation information tracing method and device based on block chain | |
| CN110599209A (en) | Wine circulation information tracing method and device based on block chain | |
| CN110378686A (en) | Digital cash on block chain pays out method and device thereof | |
| CN110674218A (en) | Company business license tracing method and device related to block chain | |
| CN110380870B (en) | Block chain private key signing method and device for e-commerce platform user | |
| CN110659912A (en) | Cosmetic circulation information tracing method and device based on block chain | |
| CN110634002A (en) | Tracing method and device for household appliance circulation information based on block chain | |
| CN110634003A (en) | Medicine circulation information tracing method and device based on block chain | |
| CN110599208A (en) | Block chain-based academic certificate tracing method and device | |
| CN110634000A (en) | Tea flow information tracing method and device based on block chain | |
| CN110598389A (en) | Method and device for storing account book certificate based on block chain | |
| CN111078715A (en) | Synchronous storage method and device for internet advertisement data on block chain | |
| CN110647586A (en) | Artwork transfer information tracing method and device based on block chain | |
| CN110688630A (en) | Book circulation information tracing method and device based on block chain | |
| CN110445620A (en) | The marriage certificate for being related to block chain deposits card method and device thereof | |
| CN110413699A (en) | The cochain method and device thereof of user's ballot associated data | |
| CN110659518A (en) | House property certificate storing method and device relating to block chain | |
| CN110633999A (en) | Clothing circulation information tracing method and device based on block chain | |
| CN110569306A (en) | evidence storing method and device for roses on block chain | |
| CN110570195A (en) | Evidence storing method and device for diamond ring on block chain | |
| CN110543521A (en) | Evidence storage method and device for dining room on block chain | |
| CN110427379A (en) | The cochain method and device thereof of user's search associated data | |
| CN110351389A (en) | The cochain method and device thereof of communities of users associated data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |