The another way to earn bitcoin is aimbitcoin. You can earn on aimbitcoin by investing bitcoin. You can invest a little amount of bitcoin like $10 at the start. There are many payout proofs on youtubek if you want to view proofs. It's not a HYIP.  If you login, there is always a upline for you or anyone who directly sign up in aimbtc. 
Here is my referral link:
https://aimbtc.com/?ref=aim1297823

if you like that I have posted then please I want all you to be my referral.  

thank you.