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What is BNB Chain?

BNB Chain is a blockchain ecosystem composed of BNB Smart Chain, opBNB and BNB Greenfield. BNB coordinates economic activity across those networks.

Last reviewed: 2026-07-13

Direct answer

BNB Chain is a blockchain ecosystem composed of BNB Smart Chain, opBNB and BNB Greenfield. BNB coordinates economic activity across those networks.

What does BNB Chain include?

BNB Smart Chain is the EVM-compatible execution network; opBNB is a Layer 2 on BSC; Greenfield is designed for decentralized storage and data ownership.

Is BNB Smart Chain a Layer 1?

Yes. BSC is an independent Layer 1 blockchain with EVM compatibility. opBNB is the Layer 2 built on top of it.

How does consensus work?

BSC uses Proof of Staked Authority. Validators participate in consensus and delegators can stake BNB to validators.

What is BNB used for?

BNB pays gas and is used in staking, governance and other ecosystem functions.

What are the main trade-offs?

Low fees and EVM compatibility improve accessibility, while validator concentration, smart-contract risk and cross-chain dependencies require scrutiny.

What may change

Network parameters, validator sets, governance processes, contracts, product availability and regulatory treatment can change. Verify operational facts before acting.

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