BEP-2: The Original Token Standard of a Major Blockchain Network

A prominent cryptocurrency exchange launched its original mainnet in 2017. Three years later, in September 2020, the platform introduced its second blockchain, while renaming the original to BNB Beacon Chain. This article explores BEP-2, the token standard of the original blockchain, and compares it with other relevant standards in the cryptocurrency ecosystem.

What Is BEP-2?

BEP-2 is the technical standard for issuing and implementing tokens on the original blockchain of a major crypto exchange. It provides a set of rules that tokens must adhere to in order to function properly within the ecosystem. BEP-2 was developed as a response to Ethereum's ERC-20 standard, aiming to offer a similar template for easy token creation on the BNB Beacon Chain.

What Is BNB Beacon Chain?

BNB Beacon Chain, launched in 2017, is the original blockchain of a prominent digital asset exchange. It utilizes a combination of Delegated Proof-of-Stake (DPoS) and Practical Byzantine Fault Tolerance (pBFT) consensus mechanisms for block mining. This combination offers an energy-efficient alternative to the Proof-of-Work protocol used by Bitcoin. The chain has attracted various tokens, including wrapped versions of assets from other blockchains, such as BTCB, a Bitcoin-pegged token.

What Is BEP-20?

BEP-20 is the token standard introduced with the launch of a newer blockchain in 2020. It was created to address the limitations of the original chain in supporting Decentralized Finance (DeFi) applications. BEP-20 offers improved functionality and compatibility with smart contracts, making it more suitable for the growing DeFi ecosystem.

What Is the Difference Between BEP-2 and BEP-20?

The key differences between BEP-2 and BEP-20 include:

1. Blockchain: BEP-2 runs on the original chain, while BEP-20 operates on the newer blockchain.
2. Smart contract support: BEP-2 lacks support for batch transfers, whereas BEP-20 is specifically designed to support smart contracts.
3. Token addresses: BEP-2 addresses start with "bnb," while BEP-20 addresses begin with "0x."
4. Consensus mechanism: BEP-2 uses Proof-of-Work, while BEP-20 employs Proof-of-Stake Authority.
5. Transaction fees: BEP-2 includes transaction fees, while BEP-20 does not.
6. Scalability: BEP-2 has limited scalability support, whereas BEP-20 offers greater flexibility.

How Do the Two Blockchains Differ?

The original chain (BNB Beacon Chain) was initially launched to run a decentralized exchange (DEX) and offer anonymous trading with lower commissions. It evolved into a decentralized, community-driven, and permissionless blockchain ecosystem.

The newer blockchain was introduced in 2020 to capitalize on the growing DeFi trend. It was specifically created to support smart contracts and DeFi applications, offering improved scalability and lower transaction fees compared to Ethereum. This chain quickly attracted new projects and became one of Ethereum's main competitors in the DeFi space.

How Does BEP-2 Compare to ERC-20?

While BEP-2 was inspired by ERC-20, the two standards have significant differences:

1. Network: BEP-2 operates on the original chain, while ERC-20 functions on Ethereum.
2. Functionality: BEP-2 is primarily for token minting and deployment, whereas ERC-20 supports smart contract implementation.
3. Compatibility: BEP-2 has limited compatibility outside its ecosystem, while ERC-20 is widely supported across various platforms and wallets.

BEP-20, on the other hand, is more similar to ERC-20 in terms of functionality and purpose. A bridge allows for some interoperability between BEP-20 and ERC-20 tokens, although conversion is still necessary when transferring between ecosystems.

Conclusion

As of 2025, BEP-2, as the original token standard, played a crucial role in the early development of the blockchain ecosystem. However, with the introduction of BEP-20 and the newer blockchain, BEP-2 has become less prominent in the rapidly evolving world of cryptocurrencies and DeFi. While BEP-2 tokens are still active and useful for engaging with the original DEX, they generally lack the versatility and widespread adoption of BEP-20 and ERC-20 tokens. As the cryptocurrency landscape continues to evolve, it remains to be seen how BEP-2 will adapt and maintain its relevance in the broader ecosystem.

FAQ

What is BEP2?

BEP2 is a token standard on Binance Chain, similar to ERC-20 on Ethereum. It enables creation and management of tokens within the Binance Chain ecosystem.