What is BSC
Binance Smart Chain (BSC) is best described as a blockchain that runs in parallel to the Binance Chain. Unlike Binance Chain, BSC boasts smart contract functionality. Both blockchains operate side-by-side. It’s worth noting that BSC isn’t a so-called layer two or off-chain scalability solution. It’s an independent blockchain that could run even if Binance Chain went offline. That said, both chains bear a strong resemblance from a design standpoint.
How does BSC work
Consensus
BSC achieves 3-second block times with a Proof-of-Stake consensus algorithm. Specifically, it uses something called Proof of Staked Authority (or PoSA), where participants stake BNB to become validators. If they propose a valid block, they’ll receive transaction fees from the transactions included in it.
Cross-chain compatibility
BSC was envisioned as an independent but complementary system to the existing Binance Chain. Dual-chain architecture is used, with the idea being that users can seamlessly transfer assets from one blockchain to another. In this way, rapid trading can be enjoyed on Binance Chain, while powerful decentralized apps can be built on BSC. With this interoperability, users are exposed to a vast ecosystem that can cater to a myriad of use cases. BEP-2 and BEP-8 tokens from Binance Chain can be swapped for BEP-20 tokens, the new standard introduced for Binance Smart Chain.
