ZkBNB is built on ZK Rollup architecture. ZkBNB bundle (or “roll-up”) hundreds of transactions off-chain and generates cryptographic proof. These proofs can come in the form of SNARKs (succinct non-interactive argument of knowledge) which can prove the validity of every single transaction in the Rollup Block. It means all funds are held on the BSC, while computation and storage are performed on BAS with less cost and fast speed.
Today BSC is experiencing network scalability problems and the core developer has proposed to use BAS in their Outlook 2022 paper to solve this problem because these side chains can be designed for much higher throughput and lower gas fees.
The BEP100 propose a modular framework for creating BSC-compatible side chains and connect them by native relayer hub. The security of native relayer hub is guaranteed by the side chain. According to the analysis of chainalysis, bridges are now a top target for the hackers and attacks on bridges account for 69% of total funds stolen in 2022. ZkBNB can perfectly solve the problem! Thanks to zkSNARK proofs, ZkBNB share the same security as BSC does.
ZkBNB implement the following features so far:
- L1 security. The ZkBNB share the same security as BSC does. Thanks to zkSNARK proofs, the security is guaranteed by cryptographic. Users do not have to trust any third parties or keep monitoring the Rollup blocks in order to prevent fraud.
- L1<>L2 Communication. BNB, and BEP20/BEP721/BEP1155 created on BSC or ZkBNB can flow freely between BSC and ZkBNB.
- Built-in NFT marketplace. Developer can build marketplace for crypto collectibles and non-fungible tokens (NFTs) out of box on ZkBNB.
- Fast transaction speed and faster finality.
- Low gas fee. The gas token on the ZkBNB can be either BEP20 or BNB.
- "Full exit" on BSC. The user can request this operation to withdraw funds if he thinks that his transactions are censored by ZkBNB.