Logic on a first remote device causes the capture of personal data identifying a user from an identification card. The logic generates a hash value from the personal data using a hashing algorithm and signs the hash value with a digital signature created using a private key paired with a public key. The logic transmits, over a network, the signed hash value and the public key from the remote device to a distributed public database for storage. The logic receives, over the network, a transaction number from the distributed public database. The logic then transmits the transaction number and the personal data to a second remote device. Logic on the second remote device verifies that the hash value in the signed hash value is the same as a generated hash value and verifies that the signed hash value was signed with the private key.