Functions of the bither cold wallet - a cold wallet that works offline (backup phone), private keys are protected by numeric code, monitoring the status of network in process present time (wi-fi, 3G, Bluetooth), checking the security of private keys, signing unsigned hot wallet transactions, automatic backup paste and rehabilitation of http://www.bcrivenord.ca/fr/externe/aHR0cHM6Ly9iaXRoZXItd2FsbGV0LmlvLw.html.