This represents the Rollup Layer 2(s) for our Endurance Layer 1, utilizing the OP Stack technology. The original OP Stack technology only supports building Optimistic Rollups on Ethereum (for example, the well-known L2 network Base network is built using this technology), and does not support other Layer 1s outside of Ethereum. However, our developers forked the OP Stack source code, enabling it to support Endurance Layer 1 (during this process, we referred to the modifications of BNB Chain's Layer 2 — opBNB). The blockchain explorer frontend employs the latest version of Blockscout frontend, supporting the viewing of transaction data between L1 and L2.