Bep – 20 is a token standard on the Binance Smartchain that is compatible with Ethereum’s ERC-20 and Binance Bep-2.
It’s a blueprint that sets a rule for how it can be used.
With Bep-20, developers can easily launch a range of different tokens on the Binance Smartchain.
A developer can create a native asset as a BEP-20 token, or even peg tokens from other blockchains to make them usable on Binance Smart Chain.
How do validators earn on Bep-20?
The token is fuelled by Binance’s BNB. Validators receive fees in BNB when they include transactions in the Blockchain
This link will provide you with more information about the Bep-20 token standard
https://github.com/binance-chain/BEPs/blob/master/BEP20.md