Abstract: A data processing system is disclosed that includes an application server and a wallet application provided by the application server. The application server is in communication with a plurality of computing nodes hosting a distributed ledger. The distributed ledger includes a plurality of user accounts and a plurality of asset contracts. The wallet application provides a wallet associated with a first user account. The wallet application is adapted to transfer a cryptocurreny from the wallet to a first asset contract.

Abstract: A system includes a firewall server and a plurality of computing nodes hosting a private distributed ledger. The private distributed ledger includes user accounts having addresses on the private distributed ledger and a firewall management contract storing filter rule data associating the addresses of at least some of said user accounts with respective filter rules for handling requests for data stored on the private distributed ledger. The firewall server is arranged to receive a request for data stored on the private distributed ledger, indicating an address of a first user account. In response to receiving said request, the firewall server is arranged to send a query to the firewall management contract for first filter rule data associated with the address of the first user account, receive a response from the firewall management contract, and process the request for data in accordance with the response from the firewall management contract.

Abstract: There is provided a data processing system comprising a plurality of computing nodes configured to host a distributed ledger, a computing device communicatively coupled with one of the computing nodes, and a data store communicatively coupled with the computing device. The distributed ledger comprises a plurality of user accounts, each of the plurality of user accounts having an address on the distributed ledger, and one or more asset contracts, each of the one or more asset contracts having an address on the distributed ledger. The computing device is operable to provide association data to a first asset contract of the one or more asset contracts, the provided association data comprising an address on the distributed ledger of a first user account of the one or more user accounts, and data indicative of a first data location in the data store.

Abstract: There is provided a data processing system comprising a plurality of computing nodes configured to host a distributed ledger, a computing device communicatively coupled with one of the computing nodes, and a data store communicatively coupled with the computing device. The distributed ledger comprises a plurality of user accounts, each of the plurality of user accounts having an address on the distributed ledger, and one or more asset contracts, each of the one or more asset contracts having an address on the distributed ledger. The computing device is operable to provide association data to a first asset contract of the one or more asset contracts, the provided association data comprising an address on the distributed ledger of a first user account of the one or more user accounts, and data indicative of a first data location in the data store.

Abstract: In one embodiment, a method allows an application running in a first process to communicate with a second process. A file system filter driver receives a command from the application for a file. The file system filter driver is configured to process file system commands. The file system filter driver determines that the command is for an inter-process communication with a service running in the second process based on the command being for the file. Then, the file system filter driver sends the command to the service running in the second process where the command is processed by the service. A response from the service is received based on the command being processed by the service and the file system filter driver sends the response to the application.

Abstract: In one embodiment, a method allows an application running in a first process to communicate with a second process. A file system filter driver receives a command from the application for a file. The file system filter driver is configured to process file system commands. The file system filter driver determines that the command is for an inter-process communication with a service running in the second process based on the command being for the file. Then, the file system filter driver sends the command to the service running in the second process where the command is processed by the service. A response from the service is received based on the command being processed by the service and the file system filter driver sends the response to the application.