CN114239778A - Tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method - Google Patents
Tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method Download PDFInfo
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- CN114239778A CN114239778A CN202111387431.4A CN202111387431A CN114239778A CN 114239778 A CN114239778 A CN 114239778A CN 202111387431 A CN202111387431 A CN 202111387431A CN 114239778 A CN114239778 A CN 114239778A
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 238000007639 printing Methods 0.000 claims abstract description 16
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 239000007943 implant Substances 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000007641 inkjet printing Methods 0.000 claims description 3
- 238000007648 laser printing Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- 238000010023 transfer printing Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 2
- 239000000284 extract Substances 0.000 abstract description 2
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- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000010017 direct printing Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
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- G—PHYSICS
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- G06Q30/00—Commerce
- G06Q30/018—Certifying business or products
- G06Q30/0185—Product, service or business identity fraud
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Abstract
本发明属于印刷防伪领域，尤其公开了一种防篡改抗复制的区块链溯源防伪方法。该方法以印刷品本体及其防伪应用为目标，采用数字潜影技术将待隐藏的水印信息植入印刷品图像中得到抗复制的同色异谱防伪图像，对其进行关键信息抽取并叠加物品溯源信息及区块链上链信息，通过半色调伪随机编码得到防篡改的同色异谱防伪码。经两种不同的信息调制方式生成复合型数字潜影防伪图像，可直接印刷在印刷品本体表面为其提供双重防伪保障。与现有技术相比，本发明提出的防伪方法成本低廉、操作简便，兼具多重防伪及直接防伪的应用优势，在品牌保护、防伪溯源等领域具有极高的实际价值。The invention belongs to the field of printing anti-counterfeiting, and particularly discloses a block chain traceability anti-counterfeiting method with anti-tampering and anti-copying. The method takes the printed matter itself and its anti-counterfeiting application as the goal, uses the digital latent image technology to implant the watermark information to be hidden in the printed matter image to obtain a copy-resistant metamerism anti-counterfeiting image, extracts key information and superimposes the item traceability information and the anti-counterfeiting image. The information on the blockchain is obtained through halftone pseudo-random coding to obtain a tamper-proof metamerism anti-counterfeiting code. The composite digital latent image anti-counterfeiting image is generated by two different information modulation methods, which can be directly printed on the surface of the printed matter to provide double anti-counterfeiting protection for it. Compared with the prior art, the anti-counterfeiting method proposed by the present invention has low cost and simple operation, and has the application advantages of multiple anti-counterfeiting and direct anti-counterfeiting, and has extremely high practical value in the fields of brand protection, anti-counterfeiting traceability and the like.
Description
Technical Field
The invention relates to the field of printing anti-counterfeiting, in particular to a tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method.
Background
The traditional anti-counterfeiting methods can be roughly divided into three categories according to the attachment mode: paste type, suspension type, direct printing type. The anti-counterfeiting methods of the sticking type and the hanging type are similar, and the anti-counterfeiting mark is printed on the label/the tag to form the anti-counterfeiting label/the anti-counterfeiting tag, and the anti-counterfeiting label/the anti-counterfeiting tag is stuck on the surface of a product or hung on the product, but the sticking type and the hanging type have the same defects: the anti-counterfeiting label and the anti-counterfeiting tag which depend on anti-counterfeiting are easy to be transferred from a genuine product to a counterfeit product by various means by a counterfeiter, so that the interests of merchants and consumers are seriously harmed by the counterfeiter. The two anti-counterfeiting methods belong to indirect anti-counterfeiting, and have weak anti-counterfeiting strength, single anti-counterfeiting characteristic and easy damage. In contrast, the anti-counterfeiting advantages of the direct printing type are self-evident, but the current anti-counterfeiting methods of the direct printing type are almost realized by special materials (such as CN112064140A) or special processes (such as CN104775313A), so that the cost is high, the process is complicated, and the risk of copying and counterfeiting exists. Therefore, finding a direct anti-counterfeiting method with multiple reliable anti-counterfeiting performances and low anti-counterfeiting cost becomes a practical problem to be solved urgently at present.
CN103469626A discloses a method for preventing forgery of textiles, which adopts a mixture of multi-wavelength excited fluorescent color-developing materials to prepare a special dyeing solution or printing paste to be directly applied to the surface of the textiles to form anti-counterfeiting marks which are white under visible light and can present 3 different colors under the excitation of specific wavelength light. Although the anti-counterfeiting function is strong, the anti-counterfeiting function completely depends on a fluorescent color developing material, the material cost is high, the materials need to be prepared in proportion, a special identification device is required for detection, and the anti-counterfeiting function is not suitable for general products. CN103730055A discloses a counterfeit-proof mark printed on the surface of ceramic and capable of being recognized by an instrument. The essence is that a graphic element carrying information is printed on the surface of the ceramic by a special printing method and ink, thereby obtaining a solidified mark with copying resistance and cracking resistance. The anti-counterfeiting mark solves the problem that high-precision anti-counterfeiting patterns are difficult to print on ceramics, but the anti-counterfeiting function mainly depends on the used infrared absorption ink, so that the printing cost is increased, and the additional anti-counterfeiting function is not added.
Disclosure of Invention
The invention aims to provide a tamper-resistant and copy-resistant block chain tracing anti-counterfeiting method, aiming at the safety problem and the practical application requirement of a printed matter in the aspect of anti-counterfeiting, no special ink and special process are needed, the block chain technology is combined to increase the function of tracing the article on the basis of anti-counterfeiting, the technical problems of indirect anti-counterfeiting, single anti-counterfeiting technology and the like commonly existing in the existing printed matter are solved, and the tamper-resistant and copy-resistant block chain tracing anti-counterfeiting method has the advantages of multiple reliable anti-counterfeiting performance, low cost and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a tamper-resistant and copy-resistant block chain traceability anti-counterfeiting method is characterized in that a digital latent image technology is adopted to implant watermark information to be hidden into a printed matter image to obtain a copy-resistant metamerism anti-counterfeiting image, key information is extracted and added with article traceability information and block chain chaining information, and a tamper-resistant metamerism anti-counterfeiting code is obtained through half-tone pseudo-random coding. Through two different information modulation modes, a composite digital latent image anti-counterfeiting image which can be directly printed or printed on the surface of a printed matter body is generated.
Furthermore, the metamerism anti-counterfeiting image is a two-dimensional code or LOGO identification image which has a first-line anti-counterfeiting function and can read information without disclosure or semi-disclosure.
Furthermore, the metamerism anti-counterfeiting code is used for recording or identifying the metamerism anti-counterfeiting image, the article traceability information and the block chain chaining information, and has the anti-counterfeiting characteristic of one article-to-one code.
The invention provides a tamper-resistant and copy-resistant block chain traceability anti-counterfeiting method which utilizes metamerism anti-counterfeiting images and metamerism anti-counterfeiting codes to realize the tamper-resistant and copy-resistant double anti-counterfeiting performance of a printed matter, and comprises the following steps:
(1) color information modulation;
(2) half-tone pseudo-random encoding;
(3) composite digital latent image anti-fake image.
Further, the generation method comprises the following steps:
(1) color information modulation
And (3) taking the watermark information to be hidden as modulation information, and modulating the color information of the printed matter image serving as the carrier image to obtain the copy-resistant metamerism anti-counterfeiting image.
(2) Halftone pseudorandom coding
Extracting key information according to the metamerism anti-counterfeiting image, superposing article traceability information and block chain uplink information, preprocessing the information into standard code stream information, then performing reliable channel coding, and performing information modulation on the obtained code word sequence to generate the anti-tampering metamerism anti-counterfeiting code.
(3) Composite digital latent image anti-fake image
The metamerism anti-counterfeiting image (two-dimensional code) and the metamerism anti-counterfeiting code are compounded or the metamerism anti-counterfeiting code (dot matrix code) is implanted into the metamerism anti-counterfeiting image to generate the compound digital latent image anti-counterfeiting image with the double anti-counterfeiting effect.
Further, the halftone pseudo-random code comprises two coding forms of a two-dimensional code and a dot matrix code.
Furthermore, the composite digital latent image anti-counterfeiting image has a two-layer structure, wherein the bottom of the composite digital latent image anti-counterfeiting image is provided with a priming ink layer which is in direct contact with the surface of the printed matter body, and the top of the composite digital latent image anti-counterfeiting image is provided with an image printing layer which is used for printing the composite digital latent image anti-counterfeiting image.
Furthermore, the bottom of the composite anti-counterfeiting image is primed with white ink, and the top is printed or printed with common CMYK ink, metamerism ink or infrared absorption or excitation invisible ink.
Further, the ink includes aqueous ink, UV ink, laser carbon powder ink, and the like.
Further, the printing may be achieved by a printing process such as screen printing, inkjet printing, laser printing, thermal transfer printing, and the like.
Further, the anti-counterfeiting method can be directly applied to the surface of the printed matter body, and the authenticity of the printed matter is verified through any image contained in the composite digital latent image anti-counterfeiting image.
The invention has the following beneficial effects:
the invention provides a tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method, which belongs to direct anti-counterfeiting. The composite digital latent image anti-counterfeiting image which can be directly printed or printed on the surface of a printed matter body is generated by adopting a digital latent image technology and a halftone pseudo-random coding technology through two different information modulation modes. Comparing the metamerism anti-counterfeiting image displayed under the infrared detection equipment and the extracted metamerism anti-counterfeiting code with the original hidden information, and identifying the authenticity of the printed matter. The method reduces potential safety hazards existing in indirect anti-counterfeiting and increases the safety performance of direct anti-counterfeiting, has multiple functions of anti-counterfeiting, tracing and the like, provides lifelong safety guarantee for printed matters, has the advantages of multiple reliable anti-counterfeiting performances, low cost and the like, and brings beneficial effects to the development of the anti-counterfeiting field.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments,
FIG. 1 is a flow chart of the tamper-resistant and copy-resistant blockchain traceability anti-counterfeiting method.
Fig. 2 is a flow chart of the authenticity verification of the printed matter of the invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited to the following examples.
Example 1
A tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method.
Aiming at the safety problem and the practical application requirement of the printed matter in the aspect of anti-counterfeiting, the method adopts a digital latent image technology to implant watermark information to be hidden into the printed matter image to obtain an anti-copy metamerism anti-counterfeiting image, extracts key information of the anti-copy metamerism anti-counterfeiting image, superposes article traceability information and block chain chaining information, and obtains an anti-tampering metamerism anti-counterfeiting code through half-tone pseudorandom coding. Through two different information modulation modes, a composite digital latent image anti-counterfeiting image which can be directly printed or printed on the surface of a printed matter body is generated.
The metamerism anti-counterfeiting image is a two-dimensional code or LOGO identification image with a one-line anti-counterfeiting function and capable of reading information without disclosure or semi-disclosure.
The metamerism anti-counterfeiting code is used for recording or identifying the metamerism anti-counterfeiting image, the article traceability information and the block chain chaining information and has the anti-counterfeiting characteristic of one article-to-one code.
Example 2
And (3) a tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method.
This step is used to implement the tamper-resistant copy-resistant blockchain traceability anti-counterfeiting method in embodiment 1, and with reference to fig. 1, the tamper-resistant copy-resistant dual anti-counterfeiting performance of the printed matter is implemented by using the metamerism anti-counterfeiting image and the metamerism anti-counterfeiting code, which includes the following steps:
(1) color information modulation
And (3) taking the watermark information to be hidden as modulation information, and modulating the color information of the printed matter image serving as the carrier image to obtain the copy-resistant metamerism anti-counterfeiting image.
(2) Halftone pseudorandom coding
And (2) after the color information modulation in the step (1), outputting a metamerism anti-counterfeiting image in CMYK format, extracting key information, superposing article traceability information and block chain uplink information, preprocessing the information into standard code stream information, then performing reliable channel coding, and performing information modulation on the obtained code word sequence to generate a tamper-proof metamerism anti-counterfeiting code.
(3) Composite digital latent image anti-fake image
And (3) compounding the metamerism anti-counterfeiting image (two-dimensional code) generated in the step (1) with the metamerism anti-counterfeiting code generated in the step (2) or implanting the metamerism anti-counterfeiting code (dot matrix code) into the metamerism anti-counterfeiting image to obtain the compound digital latent image anti-counterfeiting image with double anti-counterfeiting effects.
Example 3
And printing based on a tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method.
The halftone pseudo-random code comprises two coding forms of a two-dimensional code and a dot matrix code.
The composite digital latent image anti-counterfeiting image has a two-layer structure, wherein the bottom of the composite digital latent image anti-counterfeiting image is provided with a priming ink layer which is directly contacted with the surface of a printed matter body, and the top of the composite digital latent image anti-counterfeiting image is provided with an image printing layer which is used for printing the composite digital latent image anti-counterfeiting image. The bottom of the composite anti-counterfeiting image is primed with white ink, and the top is printed or printed by common CMYK ink and metamerism ink, or by infrared absorption or excitation invisible ink. The ink includes water-based ink, UV ink, laser carbon powder ink, etc., and the printing can be realized by screen printing, ink jet printing, laser printing, thermal transfer printing, etc.
The method can be directly applied to the surface of a printed matter body, and the authenticity of the printed matter is verified through any image contained in the composite digital latent image anti-counterfeiting image.
The present invention is described in detail with reference to the specific embodiments, but the present invention is only the preferred embodiments, and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (11)
1. A block chain tracing anti-counterfeiting method for preventing falsification and duplication is characterized in that the anti-counterfeiting method is to implant watermark information to be hidden into a printed matter image by adopting a digital latent image technology to obtain duplication-resistant homochromy information, obtain anti-falsification metamerism anti-counterfeiting codes by half-tone pseudo-random coding, and generate a composite digital latent image anti-counterfeiting image capable of being directly printed or printed on the surface of a printed matter body through two different information modulation modes.
2. The tamper-resistant copy-resistant block chain traceability anti-counterfeiting method according to claim 1, wherein the metameric anti-counterfeiting image is a two-dimensional code or LOGO identification image with a first-line anti-counterfeiting function and without public or semi-public readable information.
3. The tamper-resistant copy-resistant blockchain traceability anti-counterfeiting method according to claim 1, wherein the metameric anti-counterfeiting code is used for recording or identifying the metameric anti-counterfeiting image, the article traceability information and the blockchain uplink information according to claim 2.
4. A tamper-resistant and copy-resistant block chain source tracing anti-counterfeiting method is characterized by comprising the following steps:
(1) color information modulation;
(2) half-tone pseudo-random encoding;
(3) composite digital latent image anti-fake image.
5. The tamper-resistant, copy-resistant, blockchain traceability security method of claim 4, wherein the generating method comprises the steps of:
(1) color information modulation
Taking watermark information to be hidden as modulation information, and modulating color information of a printed matter image to obtain the metamerism anti-counterfeiting image according to claim 2;
(2) halftone pseudorandom coding
Extracting key information of the metamerism anti-counterfeiting image according to the metamerism anti-counterfeiting image disclosed by claim 2, superposing article traceability information and block chain uplink information, preprocessing the information into standard code stream information, and then performing reliability channel coding to generate the metamerism anti-counterfeiting code disclosed by claim 3;
(3) composite digital latent image anti-fake image
Compounding the metameric anti-counterfeiting image according to claim 2 and the metameric anti-counterfeiting code according to claim 3 to generate a composite digital latent image anti-counterfeiting image with double anti-counterfeiting effects.
6. The tamper-resistant copy-resistant blockchain traceability anti-counterfeiting method according to claim 5, wherein the halftone pseudo-random code comprises two coding forms of a two-dimensional code and a dot matrix code.
7. The tamper-resistant copy-resistant blockchain traceability security method of claim 5, wherein the composite digital latent image security image has a two-layer structure with a primer ink layer at the bottom and an image printing layer at the top.
8. The tamper-resistant copy-resistant blockchain traceability security method of claim 7, wherein the composite security image is primed with white ink at the bottom and printed or printed with common CMYK ink, metameric ink at the top, or printed with infrared absorbing or exciting invisible ink.
9. The tamper-resistant, copy-resistant, blockchain traceability security method of claim 8, wherein the ink comprises an aqueous ink, a UV ink, a laser carbon powder ink, or the like.
10. The tamper-resistant copy-resistant blockchain traceability security method of claim 8, wherein the printing can be performed by a printing process such as screen printing, inkjet printing, laser printing, thermal transfer printing, and the like.
11. The tamper-resistant copy-resistant blockchain traceability anti-counterfeiting method according to any one of claims 1 to 10, wherein the anti-counterfeiting method can be directly applied to the surface of a printed matter body, and the authenticity of the printed matter is verified through any image contained in the composite digital latent image anti-counterfeiting image.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014197869A1 (en) * | 2013-06-07 | 2014-12-11 | Digimarc Corporation | Information coding and decoding in spectral differences |
| CN109376832A (en) * | 2018-12-21 | 2019-02-22 | 北京印刷学院 | Triple anti-counterfeiting QR code embedded with anti-counterfeiting logo image and digital fluorescent image |
| CN112149013A (en) * | 2020-10-17 | 2020-12-29 | 北京年发纺织科技有限公司 | Product tracing method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014197869A1 (en) * | 2013-06-07 | 2014-12-11 | Digimarc Corporation | Information coding and decoding in spectral differences |
| CN109376832A (en) * | 2018-12-21 | 2019-02-22 | 北京印刷学院 | Triple anti-counterfeiting QR code embedded with anti-counterfeiting logo image and digital fluorescent image |
| CN112149013A (en) * | 2020-10-17 | 2020-12-29 | 北京年发纺织科技有限公司 | Product tracing method |
Non-Patent Citations (1)
| Title |
|---|
| 陈方方: "半色调复合防伪方法及算法研究" * |
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