The HEX.win snapshot will occur December 2nd at the first Bitcoin block mined after 00:00:00 UTC. You must have access to the private keys to your Bitcoin address having a balance at that exact blockheight to be able to submit a claim. If you have a normal or segwit bitcoin address, you are very likely to be eligible to claim. Countdown Timer
To read more about which addresses are eligible, please visit https://hex.win/techspecs.html.
The HEX contract will be targeted for launch at 00:00:00 UTC the next day after the snapshot. You will have a day to gather up ETH and convert BTC into ETH to join the Adoption Amplifer on day 1. This way you can both FreeClaim and then transform the BTC to ETH to transform into HEX via the AA system. If you don’t already have BTC it’s very likely you will make much more HEX buying ETH to send to the AA system, than by buying BTC just to FreeClaim with it. The math is here: https://hex.win/adoption-amplifier.html
Referrals get an extra 10% HEX during the first year.