According to embodiments, a global identity (ID) is generated by receiving a plurality of documents which, in total, only a particular person has ready access, and assigning a global ID to actual name of the particular person. Registration on the blockchain gives others a way to verify that a transaction was signed by the person and sent from the person's personal electronic device by transmitting a challenge message to the person as a digital challenge, and verifying that the person possesses a corresponding private key by responding with an encrypted message that can be decrypted to display the original message.