Calculate your unique id by filling out your information at https://coda-coda.github.io/handshake/Generator/ then looking below the QR code where it says "Your anonymous ID is:" it should be a long mix of numbers and letters with no punctuation or spaces. E.g. Person_5590cdc7ba6ded96c541aae0c627814c17df968d2dad32a98b67daa15b6d4e8e