# Tribe - Referral Program
**You will receive 10% of the Tribe Lens from the users you invited. No limit.**
The Tribe is designed to align incentives of both referral (KOL with followers) and referrer (people who posted often).
BitReXe Tribe Interface
#### 🔮**Tribe Lens**
The tribe lens is calculated and given according to the amount of one's rxBTC balance × days of holding rxBTC, through daily snapshots. (Snapshots will be taken every day at UTC 11:55 PM).
The Tribes are ranked based on the following calculating formulas:
`P(Tribe) = P(Tribe Chief)+ P(Tribe Members)`
`P(Tribe Chief) = R(0.21) × Multiplier (1x-2.5x) × days of holding rxBTC × Amount rxBTC balance + 10% × Sum of P(Tribe Members)`
`P(Tribe Members) = R(0.21) × Multiplier (1x-2.5x) × days of holding rxBTC × Amount rxBTC balance`
{% hint style="warning" %}
Important notice! An individual is not ranked and receives Tribe Lens until he whom joined or created a Tribe.
If you would like to participate in the Tribe-Referral Program, make sure to join or create a tribe before you peg in any Bitcoin. The coin\*days of rxBTC received beforehand will not be calculated as Tribe Lens.
{% endhint %}
#### Create and join a Tribe
To create a tribe, click \[create] on the Tribe page and the tribe will be created after the name is entered.
To join a tribe, you will need an invitation code. If you would love to join a specific tribe, you can contact Tribe Chief through the linked Twitter account.
{% hint style="warning" %}
**Important Notice:**\
You **can not** switch Tribes once you have joined or created a Tribe.
{% endhint %}
#### **Tribe Bonus**
After the 1,000 epochs have ended; and as the fourth halving of Bitcoin（840,000 block height） occurs, an additional 1,575,000 (1.5% of the total market value) BRX tokens will be distributed as awards to the Tribes that rank top at the leaderboard.
The BRX will be transferred to their DioWallets as rewards for early promotion and community management.
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