These days, a lot of project airdrops are using palm print verification...

For small accounts it doesn't matter, but for main accounts, try to use your own whenever possible. If there's a secondary verification, you're really done for.

Also, it's said that this app scans your palm print and then generates a unique ID based on a specific algorithm, which is stored on their server for future repeated verification.

With this trend, when future projects launch airdrops, it seems like they'll likely use a trinity approach: social accounts + palm print ID + other factors for judgment. Definitely some projects will integrate this data to determine whether accounts are Sybil attackers.

Everyone's accounts must maintain uniqueness...