A system for providing document authenticity, securing, and tracing includes a mark, an invisible code and a serial number. A user desiring to create a secure, verifiable document can receive one or more codes or indicia to put on the physical document.

A system for providing document authenticity, securing, and tracing includes a mark, an invisible code and a serial number. A user desiring to create a secure, verifiable document can receive one or more codes or indicia to put on the physical document.

A device for decoding magnetic patterns printed on documents comprising a reading head (12) having: a reader (20) arranged to read first magnetic signals belonging to the magnetic patterns and to electromagnetic noise due to sources internal and/or external to the device. The device further comprises: a further reader (40), arranged to read second magnetic signals belonging to the electromagnetic noise, an adder component (25) arranged to algebraically subtract the amplified second magnetic signals from the amplified first magnetic signals, and a converter (16) arranged to convert the resulting signal into a digital signal representing the read magnetic patterns. A method for decoding magnetic patterns is also disclosed.

A security document has a security substrate, a security device and a structural weakness element, wherein the security device is coupled to the security substrate, wherein the structural weakness element is integrated with at least one of the security substrate or the security device, the structural weakness element defining an anti-harvesting area and a bulk area, and wherein the anti-harvesting area has one or more of structural fidelity or optical fidelity with the bulk area.

A security document has a security substrate, a security device and a structural weakness element, wherein the security device is coupled to the security substrate, wherein the structural weakness element is integrated with at least one of the security substrate or the security device, the structural weakness element defining an anti-harvesting area and a bulk area, and wherein the anti-harvesting area has one or more of structural fidelity or optical fidelity with the bulk area.

A currency information provision system (1) comprises: a database server (2) in which currency image information is stored as one type of currency information about multiple types of currency; and an information processing terminal (3) that acquires target image information (IA), which is image information for a search object, and transmits the target image information (IA) to the database server (2), the database server (2) comparing the target image information (IA) with the currency image information, and thereby searching a candidate currency estimated to be the same type as currency included in the search target, from among the multiple types of currency, and transmitting the currency information (IB) of the candidate currency to the information processing terminal (3), and the information processing terminal (3) providing currency information for the candidate currency.

A currency information provision system (1) comprises: a database server (2) in which currency image information is stored as one type of currency information about multiple types of currency; and an information processing terminal (3) that acquires target image information (IA), which is image information for a search object, and transmits the target image information (IA) to the database server (2), the database server (2) comparing the target image information (IA) with the currency image information, and thereby searching a candidate currency estimated to be the same type as currency included in the search target, from among the multiple types of currency, and transmitting the currency information (IB) of the candidate currency to the information processing terminal (3), and the information processing terminal (3) providing currency information for the candidate currency.

A paper sheet processing method that is to be employed by a paper sheet processing device. The paper sheet processing method involves acquiring image information for a paper sheet, transmitting the acquired image information to an external character recognition device, receiving the results of character recognition by the character recognition device from the character recognition device, and using the results of the character recognition by the character recognition device to process the paper sheet.

A paper sheet processing method that is to be employed by a paper sheet processing device. The paper sheet processing method involves acquiring image information for a paper sheet, transmitting the acquired image information to an external character recognition device, receiving the results of character recognition by the character recognition device from the character recognition device, and using the results of the character recognition by the character recognition device to process the paper sheet.

A method for deterring information copying, includes: combining a watermark serial number incorporate in a given medium with a content serial number to create a combined serial number, the watermark serial number uniquely identifies the given medium, and the content serial number uniquely identifies a content stored on the given medium; creating a digital signature by encoding the combined serial number using a private key of a public/private key pair; imprinting the content serial number and the digital signature on the given medium; decoding the digital signature imprinted on the given medium using a public key of the public/private key pair to obtain the combined serial number; comparing the decoded combined serial number with the watermark serial number and the content serial number imprinted of the given medium; and in response to determining that both match the combined serial number, determining that the content is authentic.