A method for identity verification of a user using a distributed ledger, the method comprising: sensing , by at least one sensor, biometric information from the user; generating , by a sensor device , biometric data from the biometric information; transmitting , by the sensor device, the biometric data to a user device and obtaining, by the user device, additional identifying information ; hashing , by the user device, at least a portion of the biometric data and at least a portion of the additional identifying information to generate a biometric digital signature for the user; storing, by the user device, at least a portion of the biometric digital signature for the user to a host biometric digital signature of user devices corresponding to each of at least n number of persons (1241, ..., 1246), such that a combination of the host biometric digital signatures for at least m number of the n number of persons comprises all of the biometric digital signature for the user, wherein the m number is a number greater than half of the n number; transmitting , by the user device, the biometric digital signature to a verification node ; obtaining, by the verification node, host biometric digital signatures from other user devices corresponding to other users associated with the user, wherein each of the host biometric digital signatures comprise a portion of a previous biometric digital signature for the user; reconstructing, by the verification node, the previous biometric digital signature from the portions of the host biometric digital signatures; comparing, by the verification node, the biometric digital signature to a previous user's biometric digital signature for the user; and verifying , by the verification node, the user when the verification node determines that the biometric digital signature is identical to the previous biometric digital signature for the user. sensing , by at least one sensor, biometric information from the user; generating , by a sensor device , biometric data from the biometric information; transmitting , by the sensor device, the biometric data to a user device and obtaining, by the user device, additional identifying information ; hashing , by the user device, at least a portion of the biometric data and at least a portion of the additional identifying information to generate a biometric digital signature for the user; storing, by the user device, at least a portion of the biometric digital signature for the user to a host biometric digital signature of user devices corresponding to each of at least n number of persons (1241, ..., 1246), such that a combination of the host biometric digital signatures for at least m number of the n number of persons comprises all of the biometric digital signature for the user, wherein the m number is a number greater than half of the n number; transmitting , by the user device, the biometric digital signature to a verification node ; obtaining, by the verification node, host biometric digital signatures from other user devices corresponding to other users associated with the user, wherein each of the host biometric digital signatures comprise a portion of a previous biometric digital signature for the user; reconstructing, by the verification node, the previous biometric digital signature from the portions of the host biometric digital signatures; comparing, by the verification node, the biometric digital signature to a previous user's biometric digital signature for the user; and verifying , by the verification node, the user when the verification node determines that the biometric digital signature is identical to the previous biometric digital signature for the user. <EOS>