> Bull Launch docs. Every page is available as Markdown by adding `.md` to its URL; the index is https://bulllaunch.fun/llms.txt. This page on the web: https://bulllaunch.fun/docs/network

# Network

Chain ID, RPC, explorer and native-asset decimals for Arc Chain Testnet.

Bull Launch runs on Arc Chain Testnet. Each coin lives in its own Uniswap v4 pool from launch through graduation.

|  |  |
| --- | --- |
| Network | Arc Testnet |
| Chain ID | 5042002 |
| Native asset | USDC, 18 decimals at the EVM level |
| Public RPC | `https://rpc.testnet.arc.io` |
| Explorer | [explorer.testnet.arc.io](https://explorer.testnet.arc.io) |
| Multicall3 | `0xcA11bde05977b3631167028862bE2a173976CA11` |
| Curve fee | 0% (0 bps), taken by the hook. The pool's own fee is 0. |
| Launch fee | None. Gas only. |
| Default supply | 1,000,000,000 tokens, 18 decimals |

> Arc's native coin is USDC, and it has 18 decimals where the EVM can see it: `eth_getBalance`, `msg.value` and every native amount in these contracts. The ERC-20 predeploy for the same balance presents 6 decimals. The two are one balance behind two interfaces, and mixing them misprices a figure by 1e12.