Canada to test advancements in biometrics and blockchain to welcome international travellers — World Economic Forum — “The Known Traveller concept is founded on the principle that an individual traveller has control over the use of their own identity and its components. Due to this decentralization of control over the components of their identity, a traveller can push proof of their identity information — secured by distributed ledger technology and cryptography — to governmental and private-sector entities throughout their journey.”