Patent ID: 8645355

Claim:
A method performed by one or more server devices, the method comprising: identifying, by at least one of the one or more server devices, a first address stored in a first search index, the first address being associated with a particular document; determining, by at least one of the one or more server devices, one or more first identifiers associated with the first address; identifying, by at least one of the one or more server devices, a second address stored in a second search index, the second address being associated with the particular document, and the second search index being different from the first search index; determining, by at least one of the one or more server devices, one or more second identifiers associated with the second address; producing, by at least one of the one or more server devices, a mapping of the first address to the second address based on a first identifier, of the one or more first identifiers, and a second identifier, of the one or more second identifiers, the first identifier being equal to the second identifier; verifying, by at least one of the one or more server devices, that the mapping of the first address to the second address is correct based on first information that is stored regarding the particular document in the first search index and second information that is stored regarding the particular document in the second search index; and transmitting, by at least one of the one or more server devices, the mapping, of the first address to the second address, to a first index server that stores the first search index or to a second index server that stores the second search index.