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doc: update readme to remove Beacon chain part (#2697)

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others changes:
  - remove bsc-docker, as it is broken
  - remove light client, as it is no longer supported
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zzzckck 2024-09-18 16:56:10 +08:00 committed by GitHub
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@ -9,16 +9,15 @@ https://pkg.go.dev/badge/github.com/ethereum/go-ethereum
)](https://pkg.go.dev/github.com/ethereum/go-ethereum?tab=doc) )](https://pkg.go.dev/github.com/ethereum/go-ethereum?tab=doc)
[![Discord](https://img.shields.io/badge/discord-join%20chat-blue.svg)](https://discord.gg/z2VpC455eU) [![Discord](https://img.shields.io/badge/discord-join%20chat-blue.svg)](https://discord.gg/z2VpC455eU)
But from that baseline of EVM compatible, BNB Smart Chain introduces a system of 21 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 and other slashing logic guarantee security, stability, and chain finality. But from that baseline of EVM compatible, BNB Smart Chain introduces a system of 21 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 and other slashing logic guarantee security, stability, and chain finality.
Cross-chain transfer and other communication are possible due to native support of interoperability. Relayers and on-chain contracts are developed to support that. BNB Beacon Chain DEX remains a liquid venue of the exchange of assets on both chains. This dual-chain architecture will be ideal for users to take advantage of the fast trading on one side and build their decentralized apps on the other side. **The BNB Smart Chain** will be: **The BNB Smart Chain** will be:
- **A self-sovereign blockchain**: Provides security and safety with elected validators. - **A self-sovereign blockchain**: Provides security and safety with elected validators.
- **EVM-compatible**: Supports all the existing Ethereum tooling along with faster finality and cheaper transaction fees. - **EVM-compatible**: Supports all the existing Ethereum tooling along with faster finality and cheaper transaction fees.
- **Interoperable**: Comes with efficient native dual chain communication; Optimized for scaling high-performance dApps that require fast and smooth user experience.
- **Distributed with on-chain governance**: Proof of Staked Authority 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. - **Distributed with on-chain governance**: Proof of Staked Authority 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.
More details in [White Paper](https://www.bnbchain.org/en#smartChain). More details in [White Paper](https://github.com/bnb-chain/whitepaper/blob/master/WHITEPAPER.md).
## Key features ## Key features
@ -34,18 +33,8 @@ To combine DPoS and PoA for consensus, BNB Smart Chain implement a novel consens
1. Blocks are produced by a limited set of validators. 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 engine. 2. Validators take turns to produce blocks in a PoA manner, similar to Ethereum's Clique consensus engine.
3. Validator set are elected in and out based on a staking based governance on BNB Beacon Chain. 3. Validator set are elected in and out based on a staking based governance on BNB Smart Chain.
4. The validator set change is relayed via a cross-chain communication mechanism. 4. Parlia consensus engine will interact with a set of [system contracts](https://docs.bnbchain.org/bnb-smart-chain/staking/overview/#system-contracts) to achieve liveness slash, revenue distributing and validator set renewing func.
5. Parlia consensus engine will interact with a set of [system contracts](https://docs.bnbchain.org/bnb-smart-chain/staking/overview/#system-contracts) to achieve liveness slash, revenue distributing and validator set renewing func.
### Light Client of BNB Beacon Chain
To achieve the cross-chain communication from BNB Beacon Chain to BNB Smart Chain, need introduce a on-chain light client verification algorithm.
It contains two parts:
1. [Stateless Precompiled contracts](https://github.com/bnb-chain/bsc/blob/master/core/vm/contracts_lightclient.go) to do tendermint header verification and Merkle Proof verification.
2. [Stateful solidity contracts](https://github.com/bnb-chain/bsc-genesis-contract/blob/master/contracts/TendermintLightClient.sol) to store validator set and trusted appHash.
## Native Token ## Native Token
@ -53,7 +42,6 @@ BNB will run on BNB Smart Chain in the same way as ETH runs on Ethereum so that
BNB will be used to: BNB will be used to:
1. pay `gas` to deploy or invoke Smart Contract on BSC 1. pay `gas` to deploy or invoke Smart Contract on BSC
2. perform cross-chain operations, such as transfer token assets across BNB Smart Chain and BNB Beacon Chain.
## Building the source ## Building the source
@ -247,9 +235,7 @@ running web servers, so malicious web pages could try to subvert locally availab
APIs!** APIs!**
### Operating a private network ### Operating a private network
- [BSC-Deploy](https://github.com/bnb-chain/node-deploy/): deploy tool for setting up both BNB Beacon Chain, BNB Smart Chain and the cross chain infrastructure between them. - [BSC-Deploy](https://github.com/bnb-chain/node-deploy/): deploy tool for setting up BNB Smart Chain.
- [BSC-Docker](https://github.com/bnb-chain/bsc-docker): deploy tool for setting up local BSC cluster in container.
## Running a bootnode ## Running a bootnode