Patent ID: 10853805

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. The first asset contract is arranged to store the provided association data, and in response to a query indicating the first user account, return the data indicative of the first data location, thereby to enable access to data stored at the first data location.