Hive SBI are a basic income token on Hive, you should receive upvotes on your content based on your holdings of SBI tokens. You can view your balance on Peakd under wallet, then 'others'. It's a 'service' of Hive. I send 1 Hive, quoting your name, for a credit, and we both receive 1 HiveSBI, so helps us both! (Yes, I have sent it already)

https://www.hivesbi.com is the website for it, you can check your balance, see the richlist and more there! If you have any other questions let us know!