% of their friends' mining activities

The user gets a % of their friends' mining activities. Depending on the level, you make a percentage. Level 1 (people you invite) - 15% share. Level 2 (people invited by your invites) - 10% share. Level 3 - 5% share. Level 4 - 3% share. Level 5 - 2% share. etc. It goes all the way to level 10. Shared mining rewards from everyone in your network. More people you invite, the more you make in BTC.