Marketing : Referral Program using Blockchain

Summary
The referral program is the most powerful marketing tool in the crypto world. I also believe that this will be replaced by Blockchain technology.
How about deploying a referral program using Blockchain technology on Sushiswap?

Abstract
I’m not so familiar with Blockchain technology, but I was a Product Manager for Crypto Exchange running on a service called LINE in Japan.
By using Smartcontract, I think that I can build a good referral program by recording the wallet address of the introducer and the wallet address of the introduced person. If the response to this proposal is good, I would like to make a detailed design.

Also, please tell us if there is any precedent for a referral program using Blockchain.

No no referral for blockchain. But referrals within the blockchain