[Problem] The purpose of the present invention is to provide a distributed ledger identity verification system, a distributed ledger identity verification method, a program, a bioinformation device, and an identity verification device that pertain to Internet of Things (IoT), the technical field of the present invention corresponding to G06Q, etc., in IPC classification, and the present invention making it possible to facilitate the prevention of spoofing and facilitate the prevention of data falsification. [Solution] This distributed ledger identity verification system verifies the identity of a person by using a plurality of bioinformation devices and distributed ledgers available in a town, the system causing a bioinformation device to acquire the bioinformation of a subject, causing the bioinformation device to analyze the bioinformation and extract a feature quantity of the subject, causing the bioinformation device to determine from the feature quantity whether the subject is the same person as a previously registered user, causing the bioinformation device to extract the ID of the user when the subject is determined to be the same person, causing the bioinformation device to record the ID as well as the time and location at which the bioinformation was acquired in a distributed ledger, and causing identity to be verified from route information based on the time and location recorded in the distributed ledger.
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