Abstract: A cloud based payment method for payment at a merchant's electronic cash register (202) comprising the steps of: —upfront: A. registering payment credentials (101) of a user; —at check-in of a store of a participating merchant: B1. launching a cloud payment application (211) on a mobile terminal (201) to establish connectivity with a cloud payment service (100); —and at check-out at an electronic cash register (202): C1. identifying (221, 222; 321, 323) the user with the cloud payment service (100) through an identification shared with the cloud payment service (100) via the electronic cash register (202) or via the cloud payment application (211); C2. communicating (222; 322) an amount payable from the electronic cash register (202) to the cloud payment service (100); C3. communicating (223; 324) the amount payable from the cloud payment service (100) to the cloud payment application (211); C4. receiving (224; 325) confirmation of the amount payable from the user; C5.

Abstract: A cloud based payment method for payment at a merchant's electronic cash register (202) comprising the steps of: upfront: A. registering payment credentials (101) of a user; at check-in of a store of a participating merchant: B1. launching a cloud payment application (211) on a mobile terminal (201) to establish connectivity with a cloud payment service (100); and at check-out at an electronic cash register (202): C1. identifying (221, 222; 321, 323) the user with the cloud payment service (100) through an identification shared with the cloud payment service (100) via the electronic cash register (202) or via the cloud payment application (211); C2. communicating (222; 322) an amount payable from the electronic cash register (202) to the cloud payment service (100); C3. communicating (223; 324) the amount payable from the cloud payment service (100) to the cloud payment application (211); C4. receiving (224; 325) confirmation of the amount payable from the user; C5.

Abstract: A system for automated registration of digital content, i.e. a work in electronic form is described, requiring no special human interaction from the content publisher. Before publication, the digital content is electronically and automatically sent to a trusted third party, which generates a time stamped and digitally signed certificate which can be used as proof of publication date.