A method includes receiving, by a network computing device of a multi-part code system, interaction information from one or more of a first and a second computing device regarding an interaction between the first and second computing devices. The method further includes generating a first and second portion of a code that are unusable individually. Alignment of the first and second portions of the code optically produces the code representative of the interaction information. A network application of the one or more of the first and second computing devices is operable to capture the optically produced code. The method further includes sending the first and second portions of the code to one or more of the first and second computing devices. When the optically produced code has been captured, the method further includes finalizing, by an interaction finalization module of the network computing device, the interaction.

A card encoding system comprises a belt to receive an encodable card on a first surface of the belt; a contactless encoding module including an encoding antenna, wherein the encoding antenna is positioned opposite a second surface of the belt; and a belt drive controller configured to rotate a drive roller to move the belt to position the encodable card for encoding using the encoding antenna.

According to a first aspect of the present invention, there is provided a method of making an optically readable element, the method comprising: providing one or more optically readable structures in or on a body, a strain being applied to the one or more optically readable structures as a result of an interaction between the body and the one or more optically readable structures; the one or more optically readable structures each having an intrinsic band structure prior to application of the strain, and wherein the applied strain changes that intrinsic band structure; and wherein the interaction is such that the strain is maintained, after the element has been made, without the need for an external influence.

A barcoded indicator operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, the barcoded indicator including at least a first barcode and at least a second barcode, the at least a second barcode being in a second barcode unreadable state prior to exceedance of the at least one threshold and upon exceedance of the at least one threshold the at least a first barcode becoming unreadable and generally simultaneously the at least a second barcode becoming readable.

A system for collection and tracking of a sample for testing is provided, which includes a kit having a housing configured for storing a sample therein and a label for adhering to the housing upon contact. The label further includes images orientated both horizontally and vertically, each displaying the same readable context able to be scanned. The images are positioned such that the position of the label on the housing and the orientation of the reader scanning the images minimally affects the ability to read the images.

A reduced size optical code identifier includes a transparent body having a flat bottom surface with a rounded or domed top surface that meets the bottom surface around the perimeter of the bottom surface. An optical code is provided in the body adjacent the bottom surface and is visible through the top surface. The top surface is configured to reduce reflection to facilitate optical recognition and decoding of the optical code. The body has a maximum length or diameter of about twelve millimeters or less. The identifier can be placed on an object or structure and then used to associate information with the optical code of the identifier so that the information can be retrieved using a computing device that can optically recognize the code and communicate with a remote server.

The present invention relates to an information storage medium and a method for long-term storage of information.

A method includes obtaining a second portion of a code associated with a second computing device. The method further includes displaying the second portion of the code on a display area of an interactive display of the first computing device. The method further includes receiving the first portion of the code from the network computing device. The method further includes displaying the first portion of the code on a code display area of the interactive display. The method further includes instructing a user of the first computing device to drag the first portion of the code from the code display area to the display area to align with the second portion of the code and when the first portion of the code is aligned with the second portion of the code in the display area, producing the code and sending a finalized interaction notification to the network computing device.

According to a first aspect of the invention, there is provided a method of deriving information from an optically readable security element, the method comprising: optically reading the optically readable security element, the optically readable security element comprising one or more optically readable structures, optically readable in response to excitation of the one or more optically readable structures, the one or more optically readable structures being arranged to interact with one or more proximal structures of the optically readable security element, the interaction being such that an excitation-emission relationship for the one or more optically readable structures interacting with the one or more proximal structures, is different to an excitation-emission relationship for the one or more optically readable structures and the one or more proximal structures in isolation; the reading comprising: determining data indicative of an optical property of the optically readable security element using first emission electromagnetic radiation, emitted in response to first excitation of the one or more optically readable structures; and deriving the information from the determined data.

A card encoding system comprises a belt to receive an encodable card on a first surface of the belt; a contactless encoding module including an encoding antenna, wherein the encoding antenna is positioned opposite a second surface of the belt; and a belt drive controller configured to rotate a drive roller to move the belt to position the encodable card for encoding using the encoding antenna.