> For the complete documentation index, see [llms.txt](https://fundimension.gitbook.io/blast-royale/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fundimension.gitbook.io/blast-royale/game-overview/usdnoob/technical-details.md).

# Technical Details

### $NOOB **Contract Addresses**

Ethereum Mainnet:

<https://etherscan.io/token/0x06561dC5CEdCc012a4EA68609b17d41499622E4c>

BASE chain:

<https://basescan.org/address/0xa528f1903b1cb425c05f1c80bf92f158a4932118>

### $NOOB will reside on:

* Ethereum mainnet, Layer 1 (chain id: 1)
* Base, Layer 2 (chain id: 8453)
* Immutable X zkEvm mainnet, Layer 2 (chain id: 13371).

Ethereum mainnet is a layer 1 blockchain with Proof-of-stake (PoS) mechanism. Immutable zkEVM is an Ethereum zk-rollup (L2) built as a fork of Geth.&#x20;

Immutable zkEVM is anchored to the Ethereum mainnet because of the following benefits:

**Security**

Ethereum's strong security and decentralization model is a key consideration, providing us with the most secure Settlement and Data Availability (DA) layer shared across most of the highest-valued rollups.

**Liquidity**

Ethereum has significant capital and liquidity that will be used to fuel applications built on Immutable zkEVM.

**Bridging**

As Immutable is a multi-chain ecosystem, we must have fast but secure and trustless bridging between each Immutable-supported chain that shares the same Data Availability layer.