​​Polkadot (DOT) is running a private sale as of July 24. Pay attention that the sale is unconfirmed by the team and it is not communicated via official Polkadot channels. A link was shared in RIOT and official Telegram group without any comments from official admins. The link is geo-blocked to USA/China and some other countries. After submitting online form a user will receive an NDA covering the sale of DOT. Participate at your own risk.
Link: https://polkadot.network/getstarted