In the second quarter of 2025, the Bitcoin Layer 2 technology sector ushered in an important milestone event. The official launch of the Bitlayer V2 Mainnet marks the entry of this field into a brand new stage of development. The most remarkable aspect of this upgrade is the complete overhaul of its architecture, transitioning from the traditional attestation (PoS) model to a Rollup architecture that is equivalent in security to the Bitcoin Mainnet.

The core of this technological innovation lies in its unique recursive proof method, which can highly compress a large amount of transaction data and write it directly into Bitcoin blocks, thus achieving security guarantees that are completely equivalent to the Bitcoin Mainnet. This method not only solves the long-standing trust issues that have plagued sidechain technology but also provides users with unprecedented security guarantees. Users can now verify transactions directly through the Bitcoin Mainnet without relying on any third-party nodes, completely eliminating asset custody risks.

The performance improvements of Bitlayer V2 are equally remarkable. The new version has increased the transaction processing capacity to thousands of transactions per second, while keeping the cost of a single transaction between $0.01 and $0.1, reducing the transaction cost by over 99% compared to the Bitcoin Mainnet. This improvement significantly enhances the practicality of Bitcoin in everyday transactions and small payments.

As the world's first Bitcoin-native Layer 2 project based on BitVM technology, Bitlayer's innovation lies in its clever combination of the advantages of OP Rollup and ZK verification technology. This unique technological integration not only preserves the decentralized and secure characteristics of Bitcoin but also endows it with the capability to run complex smart contracts. This groundbreaking advancement allows Bitcoin to potentially transition from a singular "digital gold" storage function to a programmable financial platform that supports diversified financial applications.

With the launch of Bitlayer V2, the Bitcoin ecosystem is experiencing a qualitative leap. This not only expands the application range of Bitcoin but also injects new vitality into the development of the entire cryptocurrency industry. Industry experts generally believe that this upgrade may trigger a new wave of innovation, promoting the application of Bitcoin in a wider range of financial scenarios.

However, despite the bright prospects, industry insiders also remind investors and users to maintain a cautious attitude. The actual application effects of new technologies and market acceptance still need time for verification. In the future, how the Bitlayer team will further optimize its technology, and how the entire industry will respond to this transformation, are both worth our continued attention.