CN112883401B - Method for making digital identity certification for 3D printed product based on block chain technology - Google Patents
Method for making digital identity certification for 3D printed product based on block chain technology Download PDFInfo
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- CN112883401B CN112883401B CN202110271093.1A CN202110271093A CN112883401B CN 112883401 B CN112883401 B CN 112883401B CN 202110271093 A CN202110271093 A CN 202110271093A CN 112883401 B CN112883401 B CN 112883401B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000010146 3D printing Methods 0.000 claims abstract description 11
- 238000007639 printing Methods 0.000 claims description 33
- 238000004364 calculation method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 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
- G06F21/602—Providing cryptographic facilities or services
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- 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
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
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- 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
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention particularly relates to a method for making digital identity certification for 3D printing products based on a block chain technology. The method for making the digital identity certificate for the 3D printed product based on the block chain technology utilizes the characteristics that the block chain information is not falsifiable and traceable to generate the anti-counterfeiting 3D two-dimensional code, and embeds the anti-counterfeiting 3D two-dimensional code into the 3D printed STL file, so that the anti-counterfeiting 3D two-dimensional code becomes an integral part of the 3D printed product; and a user can check the digital certificate of the product by scanning the anti-counterfeiting 3D two-dimensional code, record all life cycles of the product from manufacturing to destroying in the digital certificate, and link the certificate in each scanning record. According to the method for making the digital identity certificate for the 3D printed product based on the block chain technology, the characteristics that information on the block chain cannot be tampered, can be traced and the like are utilized, and the 3D two-dimensional code embedded into the product is combined, so that the product has uniqueness and anti-counterfeiting property, is not easy to destroy and replace, and improves the anti-counterfeiting property of the product.
Description
Technical Field
The invention relates to the technical field of block chains and additive manufacturing, in particular to a method for making digital identity certification for a 3D printing product based on a block chain technology.
Background
With the rapid development and popularization of 3D printing technology in the current stage, a plurality of fake and shoddy products are generated while the traditional manufacturing industry continuously approaches to intelligent manufacturing. The fake and fake products spread on the sky can also affect the benefits of manufacturers and consumers and even restrict the healthy development of the manufacturing industry. Since the advent of rapid manufacturing of 3D printing, messages regarding successful replication of XX work by 3D printing have occurred many times around the world. The method causes certain economic loss to the creators and is a damage to intellectual property rights. These over-realistic imitations are likely to pose a significant hazard to intellectual property protection.
Although many produce packages carry anti-counterfeit labels for the benefit of the manufacturer and consumer. However, because the orientation label carried by the outer package is easy to forge, the common anti-counterfeit label cannot play the role of anti-counterfeit tracing.
Based on the problems, the invention provides a method for making digital identity certification for 3D printed products based on a block chain technology.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a method for making digital identity certification for a 3D printed product based on a block chain technology.
The invention is realized by the following technical scheme:
a method for making digital identity certification for 3D printed products based on block chain technology is characterized by comprising the following steps: generating an anti-counterfeiting 3D two-dimensional code by using the characteristics that the block chain information is not falsifiable and traceable, and embedding the anti-counterfeiting 3D two-dimensional code into a 3D printing STL file to enable the anti-counterfeiting 3D two-dimensional code to become an integral part of a 3D printing product;
and the user can check the digital certificate of the product by scanning the anti-counterfeiting 3D two-dimensional code, record all life cycles of the product from manufacturing to destroying in the digital certificate, and link and store the certificate on the record of each scanning.
The method comprises the following steps:
step one, registering and logging, uploading a chain action name and an STL file to be printed, and submitting the STL format file to be printed to a printing page;
secondly, performing hash calculation on the STL file to be printed to generate a hash value, and uploading the hash value generated by calculation as the digital fingerprint of the STL file and the printing information to a block chain jointly maintained by a plurality of different individuals;
thirdly, generating a block chain transaction number (TXID) and a digital certificate webpage of the product, and generating an anti-counterfeiting two-dimensional code according to the digital certificate webpage;
fourthly, 3D converting the anti-counterfeiting two-dimensional code to obtain an anti-counterfeiting 3D two-dimensional code, analyzing the STL file to be printed, and embedding the anti-counterfeiting 3D two-dimensional code into the STL file to be printed;
fifthly, adjusting and confirming the size and the position of the anti-counterfeiting 3D two-dimensional code on the 3D printed product, and outputting the determined STL file;
and sixthly, downloading the determined STL file for printing, scanning a code after printing and molding, and opening a webpage and checking a digital certificate of the product.
In the first step, the printing information of the product is uploaded on the printing page, and the printing information comprises operator information, printing places, printing time, the number of the accessed printer, printing materials and parameter information.
In the third step, the anti-counterfeiting two-dimensional code is a link type two-dimensional code and is used for checking a digital certificate of a product; all life cycles of the product from manufacturing to destroying are recorded in the digital certificate, and each scanning information of the anti-counterfeiting two-dimensional code can be recorded in the digital certificate webpage through the webpage, so that the certificate is linked and stored.
In the third step, the digital certificate information includes a digital fingerprint (hash value) of the STL file, printing information, a winding action name, a winding time, and a scan record.
The beneficial effects of the invention are: according to the method for making the digital identity certificate for the 3D printed product based on the block chain technology, the characteristics that information on the block chain cannot be tampered, can be traced and the like are utilized, and the 3D two-dimensional code embedded into the product is combined, so that the product has uniqueness and anti-counterfeiting property, is not easy to destroy and replace, and improves the anti-counterfeiting property of the product.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a method for performing digital identification for 3D printed products based on a block chain technology according to the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the embodiment of the present invention. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. 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 blockchain technology is a brand new distributed infrastructure and computing mode that uses blockchain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptography to secure data transmission and access, and uses intelligent contracts composed of automated script codes to program and manipulate data.
The blockchain is a chain data structure formed by connecting data information blocks in sequence according to a time sequence, once information is verified and added to the blockchain, the information is stored permanently, and unless more than half of nodes in the system can be controlled simultaneously, modification on a database on a single node is invalid, so that the data stability and reliability of the blockchain are extremely high.
STL files are used to describe the surface geometry of three-dimensional objects without the properties of colors, texture maps, or other common three-dimensional models.
The method for making the digital identity certification for the 3D printed product based on the block chain technology comprises the steps of generating an anti-counterfeiting 3D two-dimensional code by utilizing the characteristics that block chain information cannot be tampered and traced, and embedding the anti-counterfeiting 3D two-dimensional code into a 3D printing STL file, so that the anti-counterfeiting 3D two-dimensional code becomes an integral part of the 3D printed product;
and the user can check the digital certificate of the product by scanning the anti-counterfeiting 3D two-dimensional code, record all life cycles of the product from manufacturing to destroying in the digital certificate, and link and store the certificate on the record of each scanning.
The method comprises the following steps:
step one, registering and logging, uploading a chain action name and an STL file to be printed, and submitting the STL format file to be printed to a printing page;
secondly, performing hash calculation on the STL file to be printed to generate a hash value, and uploading the hash value generated by calculation as the digital fingerprint of the STL file and the printing information to a block chain jointly maintained by a plurality of different individuals;
the STL file is hashed (hash) in the sense that the information is compressed into a string of numbers and letters. The hash algorithm is a very basic and important technology in the field of information technology. It can map a binary value (plaintext) of an arbitrary length to a binary value (hash value) of a shorter fixed length, and different plaintexts are difficult to map to the same hash value. The defined hash value can be considered as a "digital fingerprint" (unique code) for the product and then the digital fingerprint and file information is uploaded to the blockchain.
Thirdly, generating a block chain transaction number (TXID) and a digital certificate webpage of the product, and generating an anti-counterfeiting two-dimensional code according to the digital certificate webpage;
regarding blockchain Transaction number (TXID), also known as Transaction hash, is a segment of characters required for tagging transfers in blockchain asset transactions, typically consisting of tens of digits and letters. Specifically, the transaction evidence information can be inquired about the block number and the evidence storage time on a third-party blockchain browser, the record is difficult to damage, and even if the blockchain browser crashes, any node on the blockchain can be directly accessed to inquire the transaction information through commands.
Fourthly, 3D converting the anti-counterfeiting two-dimensional code to obtain an anti-counterfeiting 3D two-dimensional code, analyzing the STL file to be printed, and embedding the anti-counterfeiting 3D two-dimensional code into the STL file to be printed;
fifthly, adjusting and confirming the size and the position of the anti-counterfeiting 3D two-dimensional code on the 3D printed product, and outputting the determined STL file;
and sixthly, downloading the determined STL file for printing, scanning a code after printing and molding, and opening a webpage and checking a digital certificate of the product.
In the first step, the printing information of the product is uploaded on the printing page, wherein the printing information comprises operator information, printing place, printing time, accessed printer number, printing material and parameter information.
In the third step, the anti-counterfeiting two-dimensional code is a link type two-dimensional code (with more stored information) and is used for checking a digital certificate of a product; all life cycles of the product from manufacturing to destroying are recorded in the digital certificate, and each scanning information of the anti-counterfeiting two-dimensional code can be recorded in the digital certificate webpage through the webpage, so that the certificate is linked and stored.
In the third step, the digital certificate information includes a digital fingerprint (hash value) of the STL file, printing information, a winding action name, a winding time, and a scan record.
If the 3D printing file does not need to be converted and only serves as storage information, the data information which is required to be stored and cannot be tampered can be directly uploaded after the user registers and logs in, and the user can be helped to automatically chain up the important information. And after the data chaining is finished, a block chain transaction number (TXID) is obtained, a website is generated, a unique two-dimensional code is generated, the two-dimensional code can display the digital fingerprint, the hash value, the information of an operator, the chaining action name, the chaining time and the certificate storage content type, and the two-dimensional code on the certificate can be scanned again to display the certificate storage text content.
The above-described embodiment is only one specific embodiment of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (3)
1. A method for making digital identity certification for 3D printed products based on block chain technology is characterized in that: generating an anti-counterfeiting 3D two-dimensional code by using the characteristics that the block chain information is not falsifiable and traceable, and embedding the anti-counterfeiting 3D two-dimensional code into a 3D printing STL file to enable the anti-counterfeiting 3D two-dimensional code to become an integral part of a 3D printing product;
a user can check the digital certificate of the product by scanning the anti-counterfeiting 3D two-dimensional code, record all life cycles of the product from manufacturing to destroying in the digital certificate, and link a chain certificate in each scanning record;
the method comprises the following steps:
step one, registering and logging, uploading a chain action name and an STL file to be printed, and submitting the STL format file to be printed to a printing page;
secondly, performing hash calculation on the STL file to be printed to generate a hash value, and uploading the hash value generated by calculation as the digital fingerprint of the STL file and the printing information to a block chain jointly maintained by a plurality of different individuals;
thirdly, generating a block chain transaction number and a digital certificate webpage of the product, and generating an anti-counterfeiting two-dimensional code according to the digital certificate webpage;
the anti-counterfeiting two-dimensional code is a link type two-dimensional code and is used for checking a digital certificate of a product; all life cycles of the product from manufacturing to destroying are recorded in the digital certificate, each scanning information of the anti-counterfeiting two-dimensional code can be recorded in the digital certificate webpage through the webpage, and the chain is linked to store the certificate;
fourthly, 3D converting the anti-counterfeiting two-dimensional code to obtain an anti-counterfeiting 3D two-dimensional code, analyzing the STL file to be printed, and embedding the anti-counterfeiting 3D two-dimensional code into the STL file to be printed;
fifthly, adjusting and confirming the size and the position of the anti-counterfeiting 3D two-dimensional code on the 3D printed product, and outputting the determined STL file;
and sixthly, downloading the determined STL file for printing, scanning a code after printing and forming, and opening a webpage to check the digital certificate of the product.
2. The method for digital identification of 3D printed products based on blockchain technology of claim 1, wherein: in the first step, the printing information of the product is uploaded on the printing page, wherein the printing information comprises operator information, printing place, printing time, accessed printer number, printing material and parameter information.
3. The method for digital identity certification of 3D printed products based on blockchain technology of claim 1, wherein: in the third step, the digital certificate information includes the digital fingerprint of the STL file, the printing information, the uplink action name, the uplink time, and the scanning record.
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| CN113360950B (en) * | 2021-08-11 | 2021-10-26 | 湖南航天天麓新材料检测有限责任公司 | Block chain-based detection authentication method, system, computer device and medium |
| CN114595476A (en) * | 2022-03-15 | 2022-06-07 | 云南红岭云科技股份有限公司 | Anti-counterfeiting two-dimensional code generation and verification system and method based on block chain |
| WO2024128944A1 (en) * | 2022-12-14 | 2024-06-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus providing evidence of ownership for a 3d printed object |
| CN115879063B (en) * | 2023-02-22 | 2023-06-02 | 深圳市智能派科技有限公司 | Proving method and system of 3D printing works based on blockchain |
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| CN105912283A (en) * | 2016-04-29 | 2016-08-31 | 邓迪 | Block chain based printer and realization method |
| CN110800016A (en) * | 2017-06-30 | 2020-02-14 | 西门子股份公司 | Block chain database for additive manufacturing |
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