On October 12, there was a snapshot of phase 1 of the ONProver campaign. On October 15, $ON token transfers will stop, so make sure to claim them.
Go to the activity website, open the Rewards tab, connect your wallet, and stamp the test tokens. You will need some MON test tokens for claiming:

Tham gia airdrop la quyet dinh va rui ro cua ban. Chung toi khong dam bao nhan duoc phan thuong. Chi ket noi vi voi cac trang web chinh thuc. Neu ai do yeu cau ban gui crypto – do la lua dao.