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 (1221, 1223); hashing, by the user device, at least a portion of the biometric data and at least a portion of the additional identifying information (1221, 1223) 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 (1221, 1223); hashing, by the user device, at least a portion of the biometric data and at least a portion of the additional identifying information (1221, 1223) 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.