the server seed appears when you roll, but it's unknown before you roll also it's different in each roll

but if you want to check previous rolls you can go to the Multiply BTC ta, go down and there's a history just click "CLICK" on one that says FREE in the game and you can see the server seed for that roll

that seems to be because of the price a bitcoin is, right now it's about 1200€ per BTC and i win ~160 satoshis in regular rolls, a couple of "days" ago bitcoin was less than 900€ and i was gaining 200 satoshis

also I just won $20 at FreeBitco.in!

My user id is 3985643.

My winning seeds: https://s3.amazonaws.com/roll-verifier/verify.html?server_seed=6da00847053dd1d697a3bfd9f42276f22574f86c241b094f6e7ef660c98b1f63&client_seed=2vJWQvPYMGUSrb0X&server_seed_hash=c948c87cf1b7847a3758c85336b8ee3b0a65c4eb78494d08641027f3cc66c9e4&nonce=200285

screenshot right here: https://kek.gg/i/4j4S_3.png