Abstract: A method is provided to verify the computational results of a transaction processing system that includes a parent node a plurality of child nodes. The parent node sends to at least two child nodes an identical request to process a transaction. The transaction is allowed to modify an application's state only if the validity of the result of the processing of the transaction is verified across participating child nodes. Otherwise, the transaction is aborted.

Abstract: An apparatus is provided to verify the computational results of a transaction processing system utilizing a parent node and a plurality of child nodes in a high-availability and scalable fashion. A transaction is executed in an identical manner in two or more participating child nodes, and the transaction is allowed to modify an application's state (e.g., commit) only if the validity of the result of the processing of the transaction is verified across the majority of the participating child nodes. Otherwise, the transaction is aborted. The child nodes may exist within a cloud provider or across multiple cloud providers.

Abstract: An identical request to process a transaction is initiated at a trusted subsystem of a system and a new subsystem of the system. Computed indicia of the transaction from both subsystems are compared at the trusted subsystem. An error condition is generated that indicates a logic error in the new subsystem when the comparison indicates that the computed indicia of the new subsystem does not match the computed indicia of the trusted subsystem. The error condition indicates a lack of transactional integrity in the new subsystem. The new subsystem may be taken out of service after the error condition is generated.

Abstract: An identical request to process a transaction is initiated at multiple nodes or multiple applications, and the results are committed. Subsequent to the commit, indicia regarding the outcome of the processing are compared, and the transaction is rolled back if the comparison indicates that the processing was incorrect.

Abstract: A method is provided to verify the computational results of a transaction processing system utilizing cloud resources in a high-availability and scalable fashion. A transaction is allowed to modify an application's state only if the validity of the result of the processing of the transaction is verified across the majority of the participating child nodes in the cloud. Otherwise, the transaction is aborted.

Abstract: A method is provided to verify the computational results of a transaction processing system utilizing cloud resources. A transaction is allowed to modify an application's state only if the validity of the result of the processing of the transaction is verified across the majority of the participating child nodes in the cloud. Otherwise, the transaction is aborted.

Abstract: A method is provided to verify the computational results of a transaction processing system. A transaction is allowed to modify an application's state only if the validity of the result of the processing of the transaction is verified. Otherwise, the transaction is aborted.

Abstract: A method is provided of alerting a merchant after completion of a transaction that the payment instrument used for the transaction has been identified as being suspect. A reporting processor receives payment instrument indicia regarding payment instruments which have been used for completion of transactions by the merchant, and payment instrument indicia regarding payment instruments which have been identified as being suspect. The reporting processor compares the payment instrument indicia which have been used for completion of transactions by the merchant with the payment instrument indicia which have been identified as being suspect to identify matching payment instrument indicia. The matching payment instrument indicia is associated with suspect payment instrument indicia used by the merchant for completion of the transaction. An electronic communication is provided to the merchant regarding any identified suspect payment instrument indicia.

Abstract: A spacer for building a toy yo-yo includes a central axis for receiving a tether string for wrapping around the central axis and two outer sidewalls, each outer sidewall having an attachment hub disposed on the outer sidewall for receiving a compact disc. The spacer in combination with two compact discs may form a toy yo-yo. The spacer may also be included in a kit for building a toy yo-yo where the user supplies the compact discs separately.

Abstract: A spacer for building a toy yo-yo includes a central axis for receiving a tether string for wrapping around the central axis and two outer sidewalls, each outer sidewall having an attachment hub disposed on the outer sidewall for receiving a compact disc. The spacer in combination with two compact discs may form a toy yo-yo. The spacer may also be included in a kit for building a toy yo-yo where the user supplies the compact discs separately.