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Binance’s BNB Chain Launches Layer-2 Testnet, opBNB, Using Optimism

by Dan K
Jun 20, 2023 - 3:30 pm
in Blockchain
The logo of Binance's opBNB testnet, representing the platform's step towards blockchain scalability.

Binance’s Answer to Scalability: opBNB

The Binance-established layer-1 blockchain, BNB Chain, has revealed a new layer-2 chain, named opBNB, to tackle its scalability issues. On June 19, BNB Chain launched the opBNB testnet, which employs the Optimism OP Stack to enhance the Binance blockchain network’s security and scalability.

A Step Towards Compatibility and Cost-efficiency

OpBNB is an Ethereum Virtual Machine (EVM) compatible layer-2 chain, implying compatibility with Ethereum-based smart contracts, networks, and ERC-20 token standards. Currently, the BNB Chain can process about 2,000 transactions per second at a transaction cost of around $0.10. However, opBNB aims to support over 4,000 transactions per second at an average transaction cost below $0.005.

Enhancements with opBNB

OpBNB enhances data accessibility, improves the caching layer, and tweaks the submission process algorithm to permit simultaneous operations, leading to a gas limit increase to 100 million per block from Optimism’s 30 million. Optimism uses Optimistic Rollups to scale transactions, assuming the transaction data processed off the root chain as valid until proven otherwise.

Critics’ Thoughts on the Launch

Despite the optimistic outlook, some industry members express skepticism. Cinneamhain Ventures’ partner, Adam Cochran, criticizes the BNB Chain for centralizing an Ethereum fork and increasing the gas limit unsafely. He also questions the decision to launch an Optimism fork, suggesting alternative scaling options.

BNB Chain in the Blockchain Landscape

As of now, according to DefiLlama, BNB Chain ranks third, behind Ethereum and Tron, in terms of DeFi total value locked. It has a TVL of $3.38 billion, a 24-hour volume of $264 million, and approximately a million active daily users.

Conclusion: opBNB – A Step Towards or Away from Scalability?

The introduction of the opBNB layer-2 testnet signifies Binance’s proactive approach towards scalability issues that have been inhibiting the mass adoption of blockchain technology. By harnessing Optimism’s potential, Binance aims to enhance transaction speeds while reducing costs, thereby streamlining the user experience on the BNB Chain.

However, it’s important to note that every coin has two sides, and the launch of opBNB has not been without its critics. Some industry experts are questioning the centralization of an Ethereum fork and the prudence of introducing an Optimism fork. They suggest other scaling options that might be more effective and secure.

What remains to be seen is how Binance’s bold step will play out in the competitive landscape of blockchain technology. While this move holds potential to elevate the BNB Chain’s standing, only time will tell whether this is indeed a leap forward towards scalability or a misstep that could have been avoided.

Tags: BinanceBlockchainBNBTestnet
Dan K

Dan K

Dan K, the chief editor, is a visionary wordsmith, shaping narratives with finesse. His discerning eye for detail creates literary masterpieces.

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