The world of Layer 2 (L2) chains has seen a significant surge in on-chain profits, with Base taking the top spot in May. According to data shared by crypto data analyst Kofi on platform X, Base topped the list with an impressive $6.98 million in on-chain profits. This remarkable achievement is a testament to the chain's ability to generate significant revenue through its L2 gas fee income.

Optimism came in second, with on-chain profits of $1.57 million, followed closely by Scroll, Arbitrum, and Linea, which ranked third to fifth with on-chain profits of $1.35 million, $802,000, and $612,000 respectively. These figures are a clear indication of the growing popularity and profitability of L2 chains.

It is essential to note that on-chain profit is calculated by subtracting the cost of batch issuance and verification proofs on L1 from the L2 gas fee income. This calculation provides a comprehensive view of the financial performance of each L2 chain, allowing for a more accurate comparison of their profitability.

The dominance of Base in May's on-chain profits is a significant development in the L2 chain landscape. This achievement is a testament to the chain's ability to generate significant revenue and its growing popularity among users. The success of Base is likely to inspire other L2 chains to improve their profitability and competitiveness.

In conclusion, the data shared by Kofi on platform X provides a valuable insight into the financial performance of L2 chains in May. The dominance of Base and the impressive on-chain profits of Optimism, Scroll, Arbitrum, and Linea are a clear indication of the growing popularity and profitability of L2 chains. As the L2 chain landscape continues to evolve, it will be exciting to see which chains emerge as leaders in terms of profitability and user adoption.