Geotokens
Geo-tokens (ie a geo-targeted) ledger
Current mobile technologies offer an advanced system of sensors with a TEE (trusted execution environment). These features include
- Biometrics (Facial, Finger, voice)
- Sensors have turned modern smartphones into miracles of convenience. Mobile devices are getting better and better at knowing their user.
- U2F (Universal 2 Factor Authentication
- NFC Smartcards
- Many smartphones have support for contactless readers. These readers do support NFC Smartcards. You can keep hardware tokens in your pocket.
- There are many tutorials on youtube. Example: https://www.youtube.com/watch?v=W7if0FW12D0
- Geolocation