The inventor here discloses destructive (self-destructing) documents useful for the protection of confidential information. The invention comprises a document which can be easily and instantly broken down into dozens of individual components, hence obliterating any information contained thereon. As the self-destruction of the document requires no extraneous equipment for destruction and guarantees elimination of readable data, the invention represents a vast improvement over the state of the art. Numerous embodiments of the document of the invention specialized for different applications are illustrated and described.

An apparatus (1) for adjusting the heat exchange, comprising shielding means (10) intended to be arranged facing at least one portion of a heat exchanger (2), and provided with at least one screen (11) movable between a position of maximum covering (C) of the heat exchanger (2) and an exposure position, in which the heat exchanger (2) is left at least partially uncovered by the screen (11).

A physical card (in some cases without any on-board source of power or computing capabilities) is configured to maintain access information for digital bearer assets. A unique identifier visible on the card may be transmitted to a server-system to utilize functionalities corresponding to the card (e.g., based on information associated with the unique identifier) on a decentralized computing platform, like a blockchain-based decentralized computing platform. Private access information, like a secret, private key that corresponds to a public key (e.g., a public-private key-pair) or a representation of the private key (like a ciphertext thereof) and corresponding encryption key, may be physically concealed with tamper-evident components such that a user can readily determine whether the private access information was divulged. In some examples, a user is required to activate one or more tamper-evident features, thereby altering a visible state of the card, to utilize functionalities corresponding to the card.

A method for making labels comprising providing a plastic substrate layer and a paper substrate layer. The paper substrate layer comprises a printed display information sheet, wherein the printed display information sheet comprises a plurality of display information tags arranged in an array. The plastic substrate layer is coupled to each of the rows of display information tags within a first portion of the display information tags to form a composite substrate row. A first line of perforations is cut into a width of the composite substrate at one or more first spaced intervals, a length of the first spaced intervals being defined by a length of the display information tags. A second line of perforations is cut into a width of the composite substrate at one or more second spaced intervals, a length of the second spaced intervals being defined by a height of the display information tags.

A physical multi-component article with cross-component deterministic values and underlying value protection (in some cases without any on-board source of power or computing capabilities) is configured to maintain access information for a digital wallet on a decentralized computing platform, like a blockchain-based decentralized computing platform. Private access information, like private key ciphertext and key or passphrase by which the private key ciphertext may be converted to plaintext, are physically concealed with tamper-evident components such that a user can readily determine by visual inspection of the apparatus whether, and what, private access information was divulged. In some examples, a user is required to activate one or more tamper-evident features, thereby altering a visible state of the apparatus, to access certain functions of a digital wallet corresponding to the apparatus.

A label as shown and described herein. The label may include a label substrate, an adhesive adjacent the substrate, and a liner adjacent the adhesive, such that the adhesive is disposed between the label substrate and the liner, and wherein the label substrate is embossed or debossed, and the liner is not embossed or debossed.

The present invention is related to a multi-layer label product that comprises a shipment label in a first layer and a return label in a second layer along with complementary layers for properly bonding the first layer and the second layer in a multi-layer arrangement. The present invention further aims at improving the method by which a customer intends to make a product/order return by using the multi-layer label according to the present invention.