Abstract: A computer that generates a product tag for a product is described. During operation, the computer may obtain information specifying multiple document locations associated with the product based at least in part on different environmental conditions of the product. Then, the computer may generate the product tag (or additional information specifying the product tag), where the product tag includes location information specifying the document locations. Moreover, given location information is associated with a given functional ink or is associated with a given state of a circuit in the product tag that is responsive to a given environmental condition. Furthermore, the environmental conditions for different functional inks or different states of the circuit are different, such that, at a given time, the product tag presents location information for a given one of the document locations. Next, the computer may provide the additional information specifying the product tag to the electronic device.

Abstract: A computer that generates a product tag for a product is described. During operation, the computer may obtain information specifying multiple document locations associated with the product based at least in part on different environmental conditions of the product. Then, the computer may generate the product tag (or additional information specifying the product tag), where the product tag includes location information specifying the document locations. Moreover, given location information is associated with a given functional ink or is associated with a given state of a circuit in the product tag that is responsive to a given environmental condition. Furthermore, the environmental conditions for different functional inks or different states of the circuit are different, such that, at a given time, the product tag presents location information for a given one of the document locations. Next, the computer may provide the additional information specifying the product tag to the electronic device.

Abstract: A computer that generates a product tag for a product is described. During operation, the computer may obtain information specifying multiple document locations associated with the product based at least in part on different environmental conditions of the product. Then, the computer may generate the product tag (or additional information specifying the product tag), where the product tag includes location information specifying the document locations. Moreover, given location information is associated with a given functional ink or is associated with a given state of a circuit in the product tag that is responsive to a given environmental condition. Furthermore, the environmental conditions for different functional inks or different states of the circuit are different, such that, at a given time, the product tag presents location information for a given one of the document locations. Next, the computer may provide the additional information specifying the product tag to the electronic device.

Abstract: A computer that performs authenticity verification is described. During operation, the computer may receive information from an electronic device, where the information specifies an identifier of a product and at least one of: an environment that includes the product, or an individual associated with the product. Then, the computer may access, based at least in part on the identifier, stored second information about the product that specifies: an expected environment, an expected type of individual, and/or a history of the product. Moreover, the computer may determine a product authenticity score based at least in part on a comparison of the information and the second information. Next, the computer may selectively provide a notification to the electronic device based at least in part on the product authenticity score.

Abstract: A computer system is described. This computer system may include: a network interface that communicates with an electronic device (which may be remotely located from the computer system); a processor; and memory that stores program instructions. During operation, the computer system may generate, in a decentralized manner, a globally unique product identifier for a product based at least in part on a smart contract. For example, the smart contract may be based at least in part on a blockchain. Moreover, the globally unique product identifier may be globally authenticated or may be capable of global authentication. Then, the computer system may associate the globally unique product identifier, one-to-one or many-to-one, with a non-fungible token (NFT) based at least in part on the smart contract. Next, the computer system may provide the globally unique product identifier intended for an electronic device associated with a recipient or a client.

Abstract: A computer that generates a product tag for a product is described. During operation, the computer may obtain information specifying multiple document locations associated with the product based at least in part on different environmental conditions of the product. Then, the computer may generate the product tag (or additional information specifying the product tag), where the product tag includes location information specifying the document locations. Moreover, given location information is associated with a given functional ink or is associated with a given state of a circuit in the product tag that is responsive to a given environmental condition. Furthermore, the environmental conditions for different functional inks or different states of the circuit are different, such that, at a given time, the product tag presents location information for a given one of the document locations. Next, the computer may provide the additional information specifying the product tag to the electronic device.