Abstract: A first user (110) requests a service provider (130) to create (200,400) a record of a transaction. The service provider (130) creates (230,430) a digital receipt (300,700,900), which includes a description (310,710,720,910,1020) of the transaction understandable by humans, tamper-proof evidence (320) of the transaction, and a verification prompt (330,740,940,1030). A second user (120) who desires to verify the transaction displays (265,465) the digital receipt (300,700,900) and activates (270,470) the verification prompt (330,740,940,1030). Upon activation, the tamper-proof evidence (320) is verified without requiring further human interaction to identify the tamper-proof evidence.

Abstract: A system and method for managing and presenting entity information is described. In an illustrative implementation, information such as product availability and operating hours is stored in a server (130). A query may be sent from a client (202) having a time (1402), date (1410), or both inquiring, for example, which entities are open at a certain or range of times, in the past, present or future. The server (130) compares the queried time with stored information, such as hours entries (4000, 4050). The results are displayed on a map (300) with open entities represented by a first symbol (930R) and closed entities by a second symbol (930G) such that all the entities on the map (300) are viewable without further searches. Clicking on a symbol (422) leads to a display (940) containing information about the associated entity, thereby enabling an entity's information to be found using only its location.

Abstract: A first user (110) requests a service provider (130) to create (200,400) a record of a transaction. The service provider (130) creates (230,430) a digital receipt (300,700,900), which includes a description (310,710,720,910,1020) of the transaction understandable by humans, tamper-proof evidence (320) of the transaction, and a verification prompt (330,740,940,1030). A second user (120) who desires to verify the transaction displays (265,465) the digital receipt (300,700,900) and activates (270,470) the verification prompt (330,740,940,1030). Upon activation, the tamper-proof evidence (320) is verified without requiring further human interaction to identify the tamper-proof evidence.

Abstract: A first user (110) requests a service provider (130) to create (200,400) a record of a transaction. The service provider (130) creates (230,430) a digital receipt (300,700,900), which includes a description (310,710,720,910,1020) of the transaction understandable by humans, tamper-proof evidence (320) of the transaction, and a verification prompt (330,740,940,1030). A second user (120) who desires to verify the transaction displays (265,465) the digital receipt (300,700,900) and activates (270,470) the verification prompt (330,740,940,1030). Upon activation, the tamper-proof evidence (320) is verified without requiring further human interaction to identify the tamper-proof evidence.

Abstract: Embodiments in accordance with the present invention allow financial or other confidential information to be securely imported in electronic form into a PTD. The information to be imported is first encrypted. The encrypted information is then transmitted from a source to the PTD. The encrypted information is then stored by the PTD. A decryption key is sent to the PTD user in a manner establishing a strong non-repudiation scheme. For example, the decryption key could be sent from a second device, or through a second communication channel separate and distinct from the first communication channel. Utilizing the decryption key delivered through the second communication channel, the user is able to decrypt and access the information in the PTD for transactional purposes.

Abstract: A first user (110) requests a service provider (130) to create (200,400) a record of a transaction. The service provider (130) creates (230,430) a digital receipt (300,700,900), which includes a description (310,710,720,910,1020) of the transaction understandable by humans, tamper-proof evidence (320) of the transaction, and a verification prompt (330,740,940,1030). A second user (120) who desires to verify the transaction displays (265,465) the digital receipt (300,700,900) and activates (270,470) the verification prompt (330,740,940,1030). Upon activation, the tamper-proof evidence (320) is verified without requiring further human interaction to identify the tamper-proof evidence.