> For the complete documentation index, see [llms.txt](https://noiho.gitbook.io/noiho/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://noiho.gitbook.io/noiho/developers/xmrn-on-hypercore.md).

# XMRn on HyperCore

Identifiers for trading XMRn and moving it across the HyperCore/HyperEVM boundary.

| Field                     | Mainnet                                    | Testnet                                    |
| ------------------------- | ------------------------------------------ | ------------------------------------------ |
| Spot token                | XMRN:0x682bdb91be9501e6f05927c16862ca29    | XMRNN:0xbab97b425d67ba2b7bb993d584db72a9   |
| Spot market coin          | @260 (XMRn/USDC)                           | @2968 (XMRn/USDC)                          |
| Core ↔ EVM system address | 0x2000000000000000000000000000000000000731 | 0x2000000000000000000000000000000000000c1a |
| EVM decimals              | 12                                         | 12                                         |
| Spot size decimals        | 4                                          | 4                                          |

HyperCore and HyperEVM use different decimal scales for the same token. HyperCore reports the token's weiDecimals in spotMeta, and the linked EVM contract adds evm\_extra\_wei\_decimals on top to reach the EVM precision above. Read both from spotMeta rather than hard-coding a conversion, and floor order sizes to the spot size decimals before submitting.