A method for processing data using a distributed data processing system includes providing input data to the distributed data processing system from a distributed data processing system interface component in communication with the distributed data processing system. The distributed data processing system processes the input data to generate a response, which it provides to the distributed data processing system interface component. The distributed data processing system interface component holds the response in escrow until it receives an indication from the distributed data processing system that the response has reached a sufficient level of durability.

A digital proof of delivery for digital goods items purchased online includes methods and systems for authenticating online purchases for helping to prevent and mitigate fraud. A unique download identification (ID) is created and associated with the digital goods download and purchase. Additionally, third parties may readily be allowed to view the download status of a digital goods item by providing the unique download identification (ID) of the item, which may be useful for aiding third party fraud investigations. In response to an item of digital goods purchased by a customer for download from a merchant having reached a specific stage of downloading, but the download is not complete, download is suspended and a dialog box is sent over a network for presentation to a customer, and, in response to a confirmation received via the dialog box, the download is completed with a download ID that is unique to the completed download.

Systems and methods to implement a blockchain sharding architecture that running multiple homogeneous chain in parallel to subdivide the workload of the entire network without requiring a centralized coordinator.

A method includes a digital subscription management system (DSMS) receiving from a source system a request to perform an edit of at least one data object, the DSMS sending a request for response (RFR) to subscribing systems having a copy of the at least one data object, the DSMS receiving a response from the subscribing systems, and the DSMS performing the edit.

A method includes a digital subscription management system (DSMS) receiving from a source system a request to perform an edit of at least one data object, the DSMS sending a request for response (RFR) to subscribing systems having a copy of the at least one data object, the DSMS receiving a response from the subscribing systems, and the DSMS performing the edit.

A method for processing state update requests in a distributed data processing system with a number of processing nodes includes maintaining a number of counters including a working counter indicating a current time interval, a replication counter indicating a time interval for which all requests associated with that time interval are replicated at multiple processing nodes of the number of processing nodes, and a persistence counter indicating a time interval of the number of time intervals for which all requests associated with that time interval are stored in persistent storage. The counters are used to manage processing of the state update requests.

This invention provides a method for managing a transaction right in a digital rights management server. The transaction right is the right to a transaction of a utilization right of a digital content item. The method comprises steps of obtaining an attribute associated with the digital content item from metadata of the digital content item; and generating the transaction right on the basis of a pre-stored rule and the attribute of the digital content item. Since the transaction right is generated on the basis of the attribute of the digital content item, or in other words, the transaction right is dependent on the attribute of the digital content item, the generated transaction right of digital content items can be different if the corresponding attribute associated with the digital content items are different. Furthermore, in additional to the metadata, the generation of the transaction right only requires the pre-stored rule, resulting in affordable complexity and cost. Since the transaction right is also dependent on the pre-stored rule, the content providers need not to individually set the transaction right for each digital content item, but are still able to set the transaction right by setting the pre-stored rule.

A data storage device may be configured to update a table used by a host device, such as a table stored at the data storage device. For, example, the data storage device may generate and store an updated version of a portion of the table. A storage location of the updated version of the portion may be tracked using a data structure that corresponds to a second version of the table. The second version of the table may be discarded or made accessible to the host device responsive to an indicator detected by the data storage device.

A computer system includes transactional memory to implement a nested transaction. The computer system generates a plurality of speculative identification numbers (IDs), identifies at least one of a software thread executed by a hardware processor and a memory operation performed in accordance with an application code. The computer system assigns at least one speculative cache version to a requested transaction based on a corresponding software thread. The speculative ID of the corresponding software thread identifies the speculative cache version. The computer system also identifies a nested transaction in the memory unit, assigns a cache version to the nested transaction, detects a conflict with the nested transaction, determines a conflicted nesting level of the nested transaction, and determines a cache version corresponding to the conflicted nesting level. The computer system also invalidates the cache version corresponding to the conflicted nesting level.

A digital proof of delivery for digital goods items purchased online includes methods and systems for authenticating online purchases for helping to prevent and mitigate fraud. A unique download identification (ID) is created and associated with the digital goods download and purchase. Additionally, third parties may readily be allowed to view the download status of a digital goods item by providing the unique download identification (ID) of the item, which may be useful for aiding third party fraud investigations. In response to an item of digital goods purchased by a customer for download from a merchant having reached a specific stage of downloading, but the download is not complete, download is suspended and a dialog box is sent over a network for presentation to a customer, and, in response to a confirmation received via the dialog box, the download is completed with a download ID that is unique to the completed download.