BNB Chain has published detailed specifications for a new high-performance Layer 1 blockchain engineered to process transactions in 200 milliseconds, expanding its infrastructure for high-frequency trading, real-time payments, and autonomous AI applications.

The new network, detailed in documentation updated October 22, will operate alongside BNB Smart Chain (BSC) rather than replace it. Both chains will use BNB for transaction fees, staking, and governance, with a native cross-chain bridge connecting their ecosystems.

Binance co-founder Changpeng Zhao (CZ) welcomed the architecture on X, describing the single-token approach with the phrase "Multiple chains, one coins."

The project already runs an internal multi-validator development network, with a public testnet planned for late 2026 and mainnet deployment targeted for early 2027.

New Layer 1 Targets 20ms Pre-Confirmations and Sub-Second Finality

The upcoming blockchain is being developed as a latency-focused alternative to general-purpose EVM networks, combining faster block production with redesigned transaction processing. General-purpose EVM networks typically produce blocks at intervals measured in seconds, placing the new targets well below prevailing on-chain norms. Its architecture targets 200-millisecond blocks, approximately 20-millisecond transaction pre-confirmations, and finality in under one second through an enhanced Parlia Proof-of-Staked-Authority consensus mechanism.

Under the pre-confirmation system, validators signal a transaction's expected inclusion and ordering before a block is finalized. These early signals can still be revoked and do not guarantee successful execution.

The network will also eliminate the traditional public mempool, routing transactions directly to block producers to reduce opportunities for front-running and transaction manipulation.

BNB Chain first outlined the project in its July Layer 1 roadmap, which initially targeted pre-confirmations below 50 milliseconds and throughput exceeding 100,000 transactions per second. The latest specifications refine the latency target while adding detail on execution, validator coordination, and network functionality.

BNB to Power Both Chains Without a New Token

The new blockchain will retain BNB as its native asset, extending the token's existing utility rather than introducing another cryptocurrency. In practice, users moving between the two networks would pay fees, stake, and take part in governance with the token they already hold, without managing a separate chain-specific asset. Users will transfer BNB from BSC through a native bridge currently under development. Validators will stake BNB to secure the network, while governance participation will use non-transferable govBNB voting balances linked to staking.

The architecture introduces several additional capabilities, including native account abstraction, programmable transaction batching, gas sponsorship, and passkey-based authorization. A Multi-Lane execution system will reserve transaction capacity for designated applications, helping time-sensitive operations such as liquidations, trading, and oracle updates avoid competition with ordinary network traffic.

BNB Chain is also developing a native privacy pool built on zero-knowledge proofs to conceal transaction participants and amounts. The initial implementation supports native BNB, though its cryptographic circuits remain unaudited and are not ready for production use.

Existing Solidity contracts will remain compatible with the new execution environment, potentially allowing developers to expand applications without rebuilding their core smart contracts.

The expansion follows earlier performance upgrades across the ecosystem. In January, BNB Chain's opBNB Fourier upgrade reduced Layer 2 block intervals from 500 to 250 milliseconds.

Infrastructure for Trading and AI Agents

The new Layer 1 is intended to support applications requiring faster transaction responses than conventional blockchain infrastructure can consistently deliver, a performance tier where centralized venues have historically held the advantage. Potential workloads include decentralized perpetual exchanges, automated trading systems, AI agents executing transactions, real-time payments, and confidential financial applications. For autonomous agents in particular, confirmation windows short enough to keep automated decisions relevant at execution time are a key requirement for on-chain operation.

BNB Chain already supports expanding financial activity, including a tokenized equity market that surpassed $5 billion in cumulative trading volume earlier this year.

Under the parallel-chain model, existing applications can remain on BSC while latency-sensitive services migrate to the specialized network, with both environments continuing to use BNB.

The new architecture still faces public-network testing, security reviews, and interoperability development before commercial deployment. BNB Chain has not finalized the network's name, chain ID, or public RPC endpoints, and its native bridge remains under development. No public testnet or faucet is currently available.

The next scheduled milestone is the public testnet before the end of 2026, followed by a targeted mainnet launch in early 2027. Until then, updates to the public documentation and progress on the native bridge serve as the nearest indicators of the project's trajectory.

Source: Crypto Adventure