# Source: https://docs.kaisar.io/kaisar-network/kaisar-architecture/products/kaisar-onenode/kaisar-checker/what-is-the-kaisar-checker-node/referral-mechanism.md

# Referral Mechanism

**10%** commission fee is reserved for all referrers. Participants in the Node Sale will receive a referral code. When friends join the Node Sale using your code, you will earn 10% of their contribution amount.

**For referral purchasers:**

Round 1: 20% discount

Round 2: 5% discount