Patent ID: 6954738

Claim:
A method for enforcing a property right within a system for controlling a manner of use of an item in accordance with usage rights, the method comprising: obtaining an enforceable property right for a specific item, including obtaining an electronic item ticket specifying the specific item as an item for which the electronic item ticket is redeemed, the electronic item ticket having a security mechanism incorporated therein, and obtaining a digital license associated with the electronic item ticket, the digital license including usage rights specifying a manner of use for redeeming the electronic item ticket and conditions for exercising the manner of use; electronically parsing the digital license for usage rights and conditions; determining if the conditions are satisfied; if the conditions are satisfied, rendering or accessing the electronic item ticket through the digital license by unlocking the security mechanism of the electronic item ticket, and if the conditions are not satisfied, not allowing rendering or accessing of the electronic item ticket; and controlling the manner of use of the specific item by controlling the manner of use for redeeming the electronic item ticket in accordance with the determined usage rights, wherein the digital license includes post-license conditions that do not need to be satisfied for unlocking the security mechanism, and the method further comprises permitting a specification of the item and the post-license conditions to be rendered or accessed, wherein the digital license includes state variables.