Abstract: Information-processing device including an exchanging unit exchanging data; a receiving unit receiving plural data sets, each of the plural data sets including at least one sub data set, plural predetermined sub data sets included in plural data sets forming series data; a first generating unit generating, for a first target sub data set, a dummy data set different from the first target sub data set; a second generating unit generating authentication information based on a second target sub data set, the second target sub data set being a sub data set or a dummy data set to be processed and selected from the at least one sub data set and the generated sub data set; and a first providing unit providing data including the second target sub data and the authentication information.

Abstract: The present invention is aimed to provide a system for providing, to a terminal device of an investor, data indicating delay of distribution of financial data, which data is used for the investor to make decisions on investment transactions in a simple and reliable way. To achieve the above aim, after entity 20 carries out specific processing of financial data received from financial data broadcasting device 10 to generate new financial data derived from the received financial data, entity 20 adds time data and an entity identifier for identifying entity 20 to the derived financial data and transmits the data to another entity 20 located at a downstream position or to financial data searching device 30.

Abstract: The present invention is aimed to provide a system for providing, to a terminal device of an investor, data indicating delay of distribution of financial data, which data is used for the investor to make decisions on investment transactions in a simple and reliable way. To achieve the above aim, after entity 20 carries out specific processing of financial data received from financial data broadcasting device 10 to generate new financial data derived from the received financial data, entity 20 adds time data and an entity identifier for identifying entity 20 to the derived financial data and transmits the data to another entity 20 located at a downstream position or to financial data searching device 30.