opBNB is a Layer 2 scaling solution for the BNB Chain. Built on the OP network, it provides users with faster and cheaper transactions through optimistic rollups.
What is opBNB ?
opBNB is an optimistic rollup network created to scale Binance Smart Chain (BSC). Its goal is to alleviate a significant portion of the workload from the main chain and enhance overall network performance in response to increased demand. It employs a sequencer for transactions and a Batcher to package them in groups.
The opBNB network seeks to achieve high efficiency without compromising security by entering into a contract with the main chain (BSC) for the final verification of transactions carried out on the execution layer. Additionally, a validator is employed to ensure the integrity of these transactions.
What is BNB Chain ?
BSC is an EVM-compatible Layer 1 network. Created to address the scalability issues of the Ethereum network, BSC provides users with an alternative to the congested ETH network by developing a network that is compatible with the Ethereum network.
BSC separates the execution and consensus layers of the Ethereum network, aiming to develop a more agile network by creating a consensus layer that is more energy-efficient to work with the adopted execution layer. While the BSC network utilizes the Proof of Stake (PoS) consensus algorithm, the Ethereum network was still using the Proof of Work (PoW) consensus algorithm during that period.
The differences in the consensus system and several other changes have significantly accelerated BSC compared to the Ethereum blockchain. BSC operates a virtual machine and smart contract language similar to Ethereum’s, supporting applications created using the infrastructures of the Ethereum network.
Developers on Ethereum can create new applications or deploy existing ones to the BNB Chain without learning a new language or making major changes to the application’s codebase. While BSC is a dominant network, it can communicate with other compatible networks such as Ethereum, Fantom, and Polygon through independent bridges.
The features of opBNB ?
Some features of the opBNB network include:
Scalability
Layer 1 blockchains like BSC and Ethereum handle all essential functions of network operations (execution, consensus, settlement, data availability) at the network level. This implies a risk of network congestion or sudden increases in traffic during peak periods, leading to high transaction fees, slow transactions, and a poor user experience.
Layer 2 networks are execution layers built on top of the main chain to ensure scalability, offering users lower fees and faster transactions. In the case of opBNB, it leverages an optimistic rollup, where transactions occurring on opBNB are aggregated in a single transaction before being sent to BNB.
Interoperability
Since OpBNB is built on the OP Stack, it can collaborate with other Layer 2 platforms using the OP Stack, such as Optimism and potentially Base. Furthermore, opBNB’s EVM compatibility and Solidity support encourage innovation by fostering an open and collaborative system across other OP chains.
While it remains uncertain whether OpBNB will be part of the Optimism Super Chain, its distinction lies in being built on the BNB Chain instead of Ethereum, setting it apart from many other OP chains.
Secured by the BNB Chain
The BNB Chain is a Proof of Stake network where validators transfer their assets to the network, and it secures the BSC by scanning new blocks for potential issues. opBNB leverages this security infrastructure by broadcasting proof of every transaction executed on its network to the main chain to secure its own network.
The main chain can obtain information about the integrity of these transactions at any time through data availability layers. Validators on the BSC will scan this data, and if there are no inconsistencies, they will hash it onto the BSC chain. To successfully compromise the opBNB network, a hacker would need to bypass the security system on the BSC chain simultaneously.
How does opBNB work?
In addition to what can be achieved with optimistic rollup, it also inherits the additional features of the OP Stack.”
By leveraging the OP Stack, opBNB inherently possesses modularity. As a modular network, operations on the opBNB network work independently but are synchronized with each other to create a dynamic system. opBNB separates the data availability (DA) layer from the execution layer, allowing the separation of the DA layer to enable the selection of different DA options and the transition between DA schemes as needed.
What is opBNB ?What is opBNB ?What is opBNB ?What is opBNB ?What is opBNB ?What is opBNB ?
