US Patent 10929389 Data provenance using distributed ledgers

Data provenance techniques are provided using distributed ledgers. An exemplary method comprises obtaining an indication of a data operation that operates on a data item, wherein the data operation comprises an operation type; creating an operation transaction in a first data ledger for the data operation, wherein the operation transaction comprises an identifier of the operation type, an identifier of an operator entity that performs the data operation; an identifier of the data item, and a timestamp of the data operation; and maintaining a provenance graph comprising a provenance graph transaction for a plurality of data operations in the first data ledger and/or a second data ledger, wherein a given provenance graph transaction comprises an identifier of source data items used to create the data item associated with the given provenance graph transaction and sources of the source data items, wherein the first data ledger and/or the second data ledger are used to determine an origin and/or recipients of one or more data items.