Project type: L1

BNB Smart Chain (BSC): Bring Smart Contracts to BNB Chain[BNB Beacon Chain sunset is in progress. Please take action to manage your assets.
Build web3 dApps effortlessly]( Beacon Chain
Sunset soonBNB ecosystem’s staking & governance layer
Decentralized data storage & economy](
Optimistic scaling solution to boost speed & cut fees](
TestnetZero-knowledge scaling solution to boost speed & cut fees]( Chain Layer 2
Solutions designed to enhance the capabilities of BSC]( BNB]( Tools]( more about Fusion]( Chain Explorer]( BNB]( Tools]( Tools](
A convenient hub for BNB Chain data & resources](
Supporting docs for developers]( Programs
Grants, funding, incentives, and support](
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A list of BNB Chain related networks](
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Get Your Business Into Web3
Integrate to BNB Chain Payments & explore the trending merchants.]( is BNB?
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Harnessing Decentralization to Make the Impossible Possible
Start Building Us](## The Largest Blockchain by Daily Active Users
An EVM-compatible blockchain powering DeFi, NFTs, GameFi, Metaverse, and more Web3 projects since 2020.
## Join BNB Smart Chain Today!
Join BNB Smart Chain as a Validator or Partner. Or build your own dApp!
[Contact Us](## What Makes BNB Smart Chain so Powerful?
EVM-compatible Layer 1 with compatible tooling for up to 35x capacity.
Supports popular programming languages: Solidity, GO, Java, Swift; with a short block time and high block gas limit.
More validator sets with BEP-13, enabling a more stable and decentralized validator network.
Temporary validators with BEP-127, allowing high capacity and less congestion.
Developer Programs offer you the support and resources needed to take your project to the next level. Our programs include grants, incentives, non-financial support, and more.
[Accelerate My dApps](## Thousands of dApps Already Deployed on BNB Chain
The BNB Chain ecosystem is growing, with millions of daily active users
[Explore dApps](## Migrate to BNB Smart Chain
BNB Smart Chain aims to provide help and support to projects looking to expand beyond their existing blockchain and build on BNB Smart Chain.
[See Instructions](## Developer Resources
Start building on BNB Smart Chain today.
Your guide to BNB Smart Chain](### GitHub
Explore the BSC tech repository](### Dev Tools
Find the right developer tools for you project](### Faucet
Pilot tokens on BNB Smart Chain](### BscScan
A block explorer and analytics platform](### BSCTrace
A mobile-friendly BSC explorer](## FAQ
What are the main features of BSC?
1. A self-sovereign blockchain: Provides security and safety with elected validators.
2. EVM-compatible: Supports all the existing Ethereum tooling along with faster finality and cheaper transaction fees.
3. Fast Finality: Finalizes the chain within two blocks in most cases.
4. Interoperable: Comes with efficient native dual chain communication; Optimized for scaling high-performance dApps that require a fast and smooth user experience.
5. Distributed with on-chain governance: Proof of Staked Authority (PoSA) brings in decentralization and community participants. As the native token, BNB will serve as both the gas of smart contract execution and tokens for staking.
How many validators does BSC have?
BNB Smart Chain relies on a system of 55 validators with Proof of Staked Authority (PoSA) consensus that can support short block time and lower fees. The most bonded validator candidates of staking will become validators and produce blocks. The double-sign detection, malicious vote detection and other slashing logic guarantee security, stability, and chain finality. Other than the 32 active validators, BSC will introduce more validators, e.g. another 23 inactive validators, into the validator set as backups, which will be called "Candidates".
What is the consensus mechanism for BSC?
BSC combines DPoS (Delegated Proof of Stake) and PoA (Proof-of-Authority) for consensus, so that:
1. Blocks are produced by a limited set of validators
2. Validators take turns to produce blocks in a PoA manner, similar to Ethereum's Clique consensus design
3. Validator set are elected in and out based on a staking based governance
The consensus protocol of BSC fulfills the following goals:
1. Short Blocking time, 3 seconds on mainnet.
2. It requires quite short time to confirm the finality of transactions, around 6s for mainnet after the coming Plato upgrade.
3. There is no inflation of native token: BNB, the block reward is collected from transaction fees, and it will be paid in BNB.
4. It is 100% compatible with Ethereum system.
5. It allows modern proof-of-stake blockchain network governance.
How does governance work on BSC?
Proof of Staked Authority brings in decentralization and community involvement. Its core logic can be summarized as the below. You may see similar ideas from other networks, especially Cosmos and EOS.
1. Token holders, including the validators, can put their tokens "bonded" into the stake. Token holders can delegate their tokens onto any validator or validator candidate, to expect it can become an actual validator, and later they can choose a different validator or candidate to re-delegate their tokens.
2. All validator candidates will be ranked by the number of bonded tokens on them, and the top ones will become the real validators.
3. Validators can share (part of) their blocking reward with their delegators.
4. Validators can suffer from "Slashing", a punishment for their bad behaviors, such as double sign and/or instability.
5. There is an "unbonding period" for validators and delegators so that the system makes sure the tokens remain bonded when bad behaviors are caught, the responsible will get slashed during this period.
## Build on BNB Smart Chain
Looking for grants, partnership, or technical support? Don’t hesitate to contact us!
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