how to deposit?
Already create an account on bitdice? When you signed up, you will find btc symbol beside your nick, just click it and it will showing other currency as well (Doge, Ltc, and Eth), and below then that you will find blue "Deposit" button. Just click that and send your balance with that address.
i lost 1 btc at the old edition , it was very hard to win and no provably fair as now
AFAIK, bitdice still provably fair since they started until now.