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Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was ...
Security printing is the field of the printing industry that deals with the printing of items such as banknotes, cheques, passports, tamper-evident labels, security tapes, product authentication, stock certificates, postage stamps, and identity cards. The main goal of security printing is to prevent forgery, tampering, or counterfeiting.
Security holograms are labels with a hologram printed onto it for sale security reasons. It is argued by the International Hologram Manufacturers Association that holograms on security labels are difficult to forge because they are replicated from a master hologram which requires expensive specialized and technologically advanced equipment. [ 1 ]
The EURion constellation is made up of five rings. The EURion constellation (also known as Omron rings [1] or doughnuts [2]) is a pattern of symbols incorporated into a number of secure documents such as banknotes, cheques, and ownership title certificate designs worldwide since about 1996.
A copy detection pattern (CDP) [1] or graphical code [2] [3] is a small random or pseudo-random digital image which is printed on documents, labels or products for counterfeit detection. Authentication is made by scanning the printed CDP using an image scanner or mobile phone camera . [ 4 ]
The anti-counterfeiting products are Optically Variable Pigment (OVP) and the newer Optically Variable Magnetic Pigment (OVMP), colors used in modern currency to create color shifting effects. [26] The group also supports anti-counterfeiting efforts by producing hard to copy labels for pharmaceutical and consumer-electronics products.
A counterfeit Series 1974 one-hundred-dollar bill on display at the British Museum. After being detected, the bill was overprinted with a rubber stamp to indicate that it is a fake. A superdollar (also known as a superbill or supernote ) is a very high quality counterfeit United States one hundred-dollar bill , [ 1 ] alleged by the U.S ...
Microprint is predominantly used as an anti-counterfeiting technique, due to its inability to be easily reproduced by widespread digital methods. While microphotography precedes microprint, microprint was significantly influenced by Albert Boni [ 1 ] in 1934 when he was inspired by his friend, writer and editor Manuel Komroff , who was showing ...