How are raffle winners selected?

As soon as all tickets are sold out, the raffle smart contract initiates a transaction on the blockchain to request a random number from Chainlink.

This random number is used to determine the lucky ticket. The process may take from a few minutes to several hours. After that, the winner is announced on https://twitter.com/0xBabylon/, and contacted via email if they have provided a valid email address within their Babylon7 profile.